/* roulang page: index */
:root {
  --bg: #eef2f6;
  --bg-soft: #f6f8fb;
  --surface: #ffffff;
  --ink: #0b1220;
  --muted: #5b6b7d;
  --line: #dce4ee;
  --primary: #b7223a;
  --primary-dark: #81152a;
  --primary-soft: #f8e5e9;
  --gold: #e7a53b;
  --blue-deep: #0b1b2e;
  --blue-card: #102caster43a;
  --navy-950: #0a1524;
  --navy-900: #0f203a;
  --navy-800: #1a3152;
  --white-soft: #fefefe;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-lg: 0 22px 48px -22px rgba(10, 21, 36, 0.28);
  --shadow-md: 0 14px 34px -18px rgba(10, 21, 36, 0.2);
  --shadow-sm: 0 8px 20px -12px rgba(10, 21, 36, 0.16);
  --max-w: 1180px;
  --space-section: 92px;
  --transition: all 0.28s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Segoe UI", -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  text-decoration: none;
  color: inherit;
}

button,
input {
  font: inherit;
}

ul,
ol {
  list-style: none;
}

.container {
  width: min(100% - 40px, var(--max-w));
  margin-inline: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(183, 34, 58, .1);
  color: var(--primary);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .02em;
}

.eyebrow:before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(183, 34, 58, .15);
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-top: 14px;
  font-weight: 800;
}

.section-sub {
  color: var(--muted);
  max-width: 720px;
  margin-top: 12px;
  font-size: 16px;
}

.centered {
  text-align: center;
}

.centered .section-sub {
  margin-inline: auto;
}

/* header & navigation */
.site-top {
  background: var(--navy-950);
  position: relative;
  z-index: 30;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
  padding: 16px 0 10px;
}

.brand-logo {
  font-size: 1.38rem;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(120deg, #fff 20%, #ffd9ae 90%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
  letter-spacing: .01em;
  line-height: 1.2;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 999px;
  padding: 8px 10px 8px 18px;
  backdrop-filter: blur(8px);
}

.nav-link {
  color: #cdd9e8;
  font-size: 15px;
  font-weight: 550;
  padding: 9px 14px;
  border-radius: 999px;
  transition: var(--transition);
  white-space: nowrap;
  line-height: 1;
}

.nav-link:hover,
.nav-link:focus-visible {
  background: rgba(255, 255, 255, .12);
  color: #fff;
  outline: none;
}

.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px -6px rgba(183, 34, 58, .7);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  background: var(--primary);
  border: 0;
  border-radius: 999px;
  padding: 10px 22px;
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 10px 26px -12px rgba(183, 34, 58, .8);
  white-space: nowrap;
}

.nav-cta:hover,
.nav-cta:focus-visible {
  background: #d02a46;
  transform: translateY(-2px);
  box-shadow: 0 14px 30px -10px rgba(183, 34, 58, .85);
}

.icon-arrow {
  margin-left: 6px;
}

/* hero */
.hero {
  position: relative;
  padding: 80px 0 72px;
  background:
    linear-gradient(180deg, rgba(10, 21, 36, .94), rgba(10, 21, 36, .62)),
    url("/assets/images/backpic/back-1.png") center / cover no-repeat;
  color: #fff;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 48px;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid rgba(255, 255, 255, .24);
  border-radius: 999px;
  background: rgba(255, 255, 255, .1);
  padding: 6px 13px;
  font-size: 13px;
  color: #d7e3f5;
  margin-bottom: 22px;
}

.hero-kicker .live-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ffc14d;
  box-shadow: 0 0 0 4px rgba(255, 193, 77, .22);
}

.hero-title {
  font-size: clamp(30px, 5vw, 52px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: -.03em;
  color: #fff;
  margin: 0 0 20px;
}

.hero-title em {
  font-style: normal;
  background: linear-gradient(92deg, #ffb15c, #ff4a63);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  color: #c3d0e2;
  font-size: 17px;
  max-width: 610px;
  line-height: 1.8;
  margin-bottom: 26px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  justify-content: center;
  border: 0;
  border-radius: 14px;
  padding: 14px 24px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, #cf2946, #a51732);
  color: #fff;
  box-shadow: 0 18px 36px -14px rgba(190, 30, 55, .8);
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 22px 40px -12px rgba(190, 30, 55, .92);
}

.btn-light {
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .26);
  color: #fff;
  backdrop-filter: blur(8px);
}

.btn-light:hover,
.btn-light:focus-visible {
  background: rgba(255, 255, 255, .2);
  border-color: rgba(255, 255, 255, .5);
  transform: translateY(-3px);
}

.hero-fact {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  max-width: 560px;
}

.hero-fact li {
  border-left: 2px solid rgba(255, 255, 255, .28);
  padding-left: 14px;
}

.hero-fact strong {
  display: block;
  font-size: 22px;
  font-weight: 900;
  color: #fff;
  letter-spacing: .01em;
}

.hero-fact span {
  font-size: 13px;
  color: #afc1da;
  display: block;
  margin-top: 2px;
}

.hero-visual {
  position: relative;
}

.hero-card {
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .18);
  backdrop-filter: blur(18px);
  border-radius: var(--radius-lg);
  padding: 22px;
  color: #fff;
  box-shadow: 0 26px 70px -30px rgba(0, 0, 0, .7);
}

.hc-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.hc-tag {
  background: var(--primary);
  border-radius: 999px;
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.4;
}

.hc-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #d8e4f4;
}

.hc-status i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4acf9a;
  display: inline-block;
}

.hero-visual img {
  border-radius: 15px;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  width: 100%;
}

.chart-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.chart-meta span {
  background: rgba(255, 255, 255, .12);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  line-height: 1.5;
  color: #e7effa;
}

.chart-meta span strong {
  color: #ffd07a;
}

.section {
  padding: var(--space-section) 0;
}

.bg-soft {
  background: var(--bg-soft);
}

/* section head */
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 34px;
}

.section-header p {
  max-width: 740px;
}

.link-more {
  color: var(--primary);
  font-weight: 700;
  border-bottom: 1px dashed rgba(183, 34, 58, .4);
  transition: var(--transition);
  white-space: nowrap;
}

.link-more:hover,
.link-more:focus-visible {
  color: var(--primary-dark);
  border-bottom-style: solid;
}

/* card grid */
.category-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 22px;
}

.category-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  grid-column: span 3;
}

.category-card:hover,
.category-card:focus-within {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: #c7d1df;
}

.cover-frame {
  position: relative;
  overflow: hidden;
  background: #d7dfe9;
}

.cover-frame img {
  aspect-ratio: 4 / 3;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.category-card:hover .cover-frame img {
  transform: scale(1.06);
}

.cover-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(10, 21, 36, .82);
  backdrop-filter: blur(6px);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 11px;
  border-radius: 999px;
  letter-spacing: .02em;
}

.card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.card-body h3 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -.01em;
}

.card-body h3 a {
  color: var(--ink);
  transition: color .25s;
}

.card-body h3 a:hover {
  color: var(--primary);
}

.card-body p {
  color: var(--muted);
  font-size: 15px;
  flex: 1;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 4px;
}

.pill {
  display: inline-block;
  background: #e9eef5;
  color: #45586e;
  border-radius: 999px;
  font-size: 13px;
  line-height: 1.4;
  padding: 5px 10px;
}

.pill-hot {
  background: var(--primary-soft);
  color: var(--primary);
}

.card-footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  margin-top: 10px;
  padding-top: 13px;
  font-size: 14px;
}

.card-footer-row span {
  color: var(--muted);
  font-size: 13px;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
}

.text-link:before {
  content: "→";
  transition: transform .25s;
}

.text-link:hover:before {
  transform: translateX(4px);
}

/* plan / year path */
.plan-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
  margin-top: 36px;
}

.plan-item {
  border-radius: var(--radius-md);
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--primary);
  grid-column: span 4;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.plan-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.plan-step {
  color: var(--primary);
  font-size: 14px;
  font-weight: 800;
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 8px;
}

.plan-item h3 {
  font-size: 19px;
  margin-bottom: 8px;
  letter-spacing: -.01em;
}

.plan-item p {
  font-size: 14px;
  color: var(--muted);
}

/* feature split */
.feature-split {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: 52px;
}

.feat-photo {
  border-radius: 26px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.feat-photo img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
}

.float-note {
  position: absolute;
  right: 18px;
  bottom: 18px;
  background: rgba(10, 21, 36, .78);
  color: #fff;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  backdrop-filter: blur(12px);
  max-width: 240px;
  font-size: 14px;
  border: 1px solid rgba(255, 255, 255, .2);
}

.float-note strong {
  color: #ffcf82;
  font-size: 20px;
  display: block;
}

.feature-list {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feature-list li {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px 18px 16px 52px;
  box-shadow: var(--shadow-sm);
}

.feature-list li::before {
  content: "✓";
  position: absolute;
  left: 15px;
  top: 16px;
  width: 24px;
  height: 24px;
  line-height: 24px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 50%;
  font-weight: 900;
  text-align: center;
  font-size: 13px;
}

.feature-list strong {
  display: block;
  font-size: 16px;
  margin-bottom: 4px;
}

.feature-list span {
  color: var(--muted);
  font-size: 14px;
  display: block;
}

/* counter strip */
.metrics {
  background: var(--navy-950);
  color: #fff;
  padding: 54px 0;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}

.metric-box {
  position: relative;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .06);
  padding: 26px 12px;
}

.metric-box strong {
  display: block;
  font-size: 34px;
  color: #ffd07a;
  font-weight: 900;
  line-height: 1.2;
}

.metric-box span {
  display: block;
  color: #b8c9de;
  font-size: 14px;
  margin-top: 6px;
}

/* news */
.news-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
  margin-top: 24px;
}

.news-item {
  grid-column: span 6;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.news-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.news-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}

.news-meta .cat-tag {
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 6px;
  padding: 3px 9px;
  font-size: 12px;
  font-weight: 700;
}

.news-meta time {
  color: var(--muted);
  font-size: 13px;
}

.news-item h3 {
  color: var(--ink);
  font-size: 17px;
  letter-spacing: -.01em;
  line-height: 1.45;
  transition: color .2s;
  margin-bottom: 8px;
}

.news-item h3 a:hover {
  color: var(--primary);
}

.news-item p {
  color: var(--muted);
  font-size: 14px;
}

.news-item .news-link {
  display: inline-block;
  margin-top: 14px;
  color: var(--primary);
  font-weight: 700;
  font-size: 14px;
}

.empty-note {
  grid-column: 1 / -1;
  background: var(--surface);
  border: 1px dashed #cbd6e2;
  border-radius: var(--radius-lg);
  color: var(--muted);
  text-align: center;
  padding: 30px 18px;
  font-size: 15px;
}

/* quote / evidence */
.quote-panel {
  border-radius: 28px;
  overflow: hidden;
  position: relative;
  color: #fff;
  background:
    linear-gradient(120deg, rgba(9, 20, 37, .97), rgba(15, 32, 55, .9)),
    url("/assets/images/backpic/back-2.png") center / cover no-repeat;
  padding: 56px 46px;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 50px;
  align-items: center;
}

.quote-panel blockquote {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.5;
  font-weight: 800;
}

.blockquote-person {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 26px;
  padding: 6px 14px 6px 6px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .1);
  color: #d9e4f2;
  font-size: 14px;
  font-weight: 600;
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  background: #dde5ec;
}

.quote-points {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.quote-points li {
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: 15px;
  padding: 16px 18px;
  color: #e6edf7;
  font-size: 15px;
  backdrop-filter: blur(4px);
}

.quote-points li strong {
  color: #ffd07a;
  display: block;
  margin-bottom: 4px;
}

/* faq */
.faq-wrap {
  max-width: 820px;
  margin: 34px auto 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

details.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

details.faq-item:hover,
details.faq-item[open] {
  border-color: #c5cfdc;
  box-shadow: var(--shadow-md);
}

details.faq-item summary {
  cursor: pointer;
  padding: 19px 22px;
  font-weight: 700;
  font-size: 17px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  list-style: none;
  color: var(--ink);
}

details.faq-item summary::-webkit-details-marker {
  display: none;
}

details.faq-item summary:after {
  content: "+";
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  line-height: 26px;
  text-align: center;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  color: var(--primary);
  font-weight: 800;
  font-size: 20px;
  transition: transform .25s;
}

details.faq-item[open] summary:after {
  transform: rotate(45deg);
}

.faq-answer {
  padding: 0 22px 22px 22px;
  color: var(--muted);
  line-height: 1.75;
  font-size: 15px;
  border-top: 1px dashed var(--line);
  margin-top: -2px;
  padding-top: 14px;
}

/* CTA */
.cta-band {
  background: var(--navy-950);
  border-radius: 30px;
  overflow: hidden;
  position: relative;
}

.cta-inner {
  display: grid;
  grid-template-columns: 1fr .92fr;
  gap: 40px;
  align-items: center;
  padding: 54px 50px;
  background:
    linear-gradient(120deg, rgba(10, 21, 36, .98), rgba(10, 21, 36, .82)),
    url("/assets/images/backpic/back-3.webp") center / cover no-repeat;
  color: #fff;
}

.cta-title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: -.02em;
}

.cta-title em {
  font-style: normal;
  color: #ffc76b;
}

.cta-desc {
  color: #c5d3e4;
  margin: 14px 0 0;
  max-width: 480px;
}

.cta-form-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.cta-input {
  width: 100%;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, .3);
  background: rgba(255, 255, 255, .1);
  padding: 15px 18px;
  color: #fff;
  font-size: 15px;
  transition: var(--transition);
}

.cta-input::placeholder {
  color: #93a5bc;
}

.cta-input:focus {
  outline: none;
  border-color: #ffc76b;
  background: rgba(255, 255, 255, .14);
  box-shadow: 0 0 0 4px rgba(255, 199, 107, .18);
}

.cta-button {
  border: 0;
  cusor: pointer;
  cursor: pointer;
  border-radius: 14px;
  padding: 15px 22px;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  transition: var(--transition);
  box-shadow: 0 16px 32px -12px rgba(183, 34, 58, .64);
  font-size: 16px;
}

.cta-button:hover,
.cta-button:focus-visible {
  background: #db2d4b;
  transform: translateY(-2px);
  box-shadow: 0 18px 38px -12px rgba(183, 34, 58, .8);
}

.form-message {
  color: #aebfd6;
  font-size: 13px;
}

/* footer */
.footer {
  background: var(--navy-950);
  color: #a9b9cd;
  padding: 64px 0 30px;
  margin-top: 80px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 32px;
}

.footer-brand .brand-logo {
  font-size: 24px;
}

.footer-brand p {
  color: #91a4bc;
  font-size: 15px;
  margin-top: 16px;
  max-width: 360px;
  line-height: 1.8;
}

.footer h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 16px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: #a9b9cd;
  font-size: 15px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #ffe0a3;
  padding-left: 3px;
}

.footer-contact {
  color: #a9b9cd;
  font-size: 15px;
  line-height: 2;
}

.footer-contact a {
  color: #cfe0f1;
  border-bottom: 1px solid rgba(255, 255, 255, .16);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .09);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  gap: 18px;
  color: #7c8ea6;
  font-size: 14px;
  flex-wrap: wrap;
}

/* responsive */
@media (max-width: 1024px) {
  .category-grid .category-card,
  .plan-item {
    grid-column: span 12;
  }

  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .category-grid .category-card,
  .plan-item {
    grid-column: span 1;
  }

  .hero-grid,
  .feature-split,
  .cta-inner {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    max-width: 640px;
  }

  .quote-panel {
    grid-template-columns: 1fr;
    padding: 40px 30px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: span 2;
  }

  .metric-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .header-inner {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .brand-logo {
    text-align: center;
  }

  .nav-panel {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  :root {
    --space-section: 64px;
  }

  .category-grid {
    grid-template-columns: 1fr;
  }

  .plan-item {
    grid-column: span 1;
  }

  .news-item {
    grid-column: span 12;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .inside-grid .news-item {
    grid-column: span 12;
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }

  .footer-brand {
    grid-column: span 1;
  }

  .hero {
    padding: 56px 0 48px;
  }
}

@media (max-width: 520px) {
  .container {
    width: calc(100% - 32px);
  }

  .hero-fact {
    grid-template-columns: 1fr;
  }

  .metric-grid {
    grid-template-columns: 1fr;
  }

  .nav-panel {
    border-radius: 24px;
    padding: 14px 12px;
  }

  .nav-cta {
    width: 100%;
  }

  .cta-inner {
    padding: 34px 22px;
  }

  .hero-title {
    font-size: 28px;
  }

  .quote-panel {
    border-radius: 18px;
    padding: 28px 18px;
  }

  .btn {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }

  .footer-contact {
    word-break: break-word;
  }
}

/* roulang page: article */
:root {
      --bg: #080e14;
      --bg-soft: #0d151e;
      --surface: #101924;
      --surface-2: #16232f;
      --surface-3: #1c2b39;
      --line: rgba(148, 163, 184, 0.16);
      --line-strong: rgba(148, 163, 184, 0.28);
      --text: #e9f0f7;
      --text-2: #b8c6d6;
      --muted: #88a0b7;
      --accent: #ff4d3c;
      --accent-2: #ff8a3d;
      --amber: #ffcf5c;
      --cyan: #4cc9f0;
      --ok: #2ee5a7;
      --radius-lg: 22px;
      --radius-md: 14px;
      --radius-sm: 9px;
      --shadow: 0 24px 70px rgba(0, 0, 0, 0.45);
      --shadow-sm: 0 10px 28px rgba(0, 0, 0, 0.28);
      --font: "Inter", "SF Pro Text", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font);
      background:
        radial-gradient(circle at 85% 8%, rgba(76, 201, 240, 0.07), transparent 28%),
        radial-gradient(circle at 10% 30%, rgba(255, 77, 60, 0.06), transparent 24%),
        var(--bg);
      color: var(--text);
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    body,
    h1,
    h2,
    h3,
    h4,
    p,
    ul,
    ol,
    figure,
    blockquote,
    dl,
    dd {
      margin: 0;
    }

    ul,
    ol {
      padding: 0;
      list-style: none;
    }

    img {
      max-width: 100%;
      display: block;
    }

    a {
      color: inherit;
      text-decoration: none;
    }

    button,
    input {
      font: inherit;
      color: inherit;
    }

    button {
      border: 0;
      background: none;
      cursor: pointer;
    }

    input {
      outline: none;
    }

    ::selection {
      background: rgba(255, 77, 60, 0.3);
    }

    .container {
      width: min(1180px, 92%);
      margin-inline: auto;
    }

    .sr-only {
      position: absolute;
      width: 1px;
      height: 1px;
      margin: -1px;
      overflow: hidden;
      white-space: nowrap;
      clip: rect(0, 0, 0, 0);
    }

    .eyebrow {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.78rem;
      font-weight: 800;
      letter-spacing: 0.12em;
      text-transform: uppercase;
      color: var(--amber);
    }

    .eyebrow::before {
      content: "";
      width: 18px;
      height: 2px;
      background: var(--accent);
      border-radius: 3px;
    }

    .section-head {
      display: flex;
      align-items: flex-end;
      justify-content: space-between;
      gap: 18px;
      margin-bottom: 28px;
    }

    .section-head h2 {
      font-size: clamp(1.6rem, 3vw, 2.2rem);
      font-weight: 900;
      letter-spacing: -0.02em;
      line-height: 1.2;
      margin-top: 10px;
    }

    .section-head p {
      color: var(--muted);
      max-width: 620px;
      font-size: 1rem;
    }

    .txt-muted {
      color: var(--muted);
    }

    .icon-arrow {
      display: inline-block;
      margin-left: 6px;
      transition: transform 0.25s ease;
    }

    a:hover .icon-arrow,
    button:hover .icon-arrow {
      transform: translate(4px, -3px);
    }

    .brand-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.22rem;
      font-weight: 900;
      letter-spacing: -0.02em;
      color: var(--text);
      white-space: nowrap;
    }

    .brand-logo::before {
      content: "";
      width: 10px;
      height: 24px;
      background: linear-gradient(180deg, var(--accent-2), var(--accent));
      border-radius: 3px;
      box-shadow: 0 0 18px rgba(255, 77, 60, 0.45);
    }

    .header-inner {
      position: sticky;
      top: 14px;
      z-index: 60;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      margin-top: 18px;
      padding: 12px 14px 12px 18px;
      background: rgba(12, 20, 28, 0.82);
      border: 1px solid var(--line);
      border-radius: 999px;
      backdrop-filter: blur(18px);
      box-shadow: var(--shadow-sm);
    }

    .nav-panel {
      display: flex;
      align-items: center;
      gap: 4px;
      padding: 5px;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid rgba(255, 255, 255, 0.03);
      border-radius: 999px;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      padding: 9px 15px;
      border-radius: 999px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--text-2);
      white-space: nowrap;
      transition: background 0.2s, color 0.2s, box-shadow 0.2s;
    }

    .nav-link:hover,
    .nav-link:focus-visible {
      outline: none;
      background: rgba(255, 255, 255, 0.08);
      color: #fff;
    }

    .nav-link.active,
    .nav-link[aria-current="page"] {
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      color: #fff;
      box-shadow: 0 8px 20px rgba(255, 77, 60, 0.24);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      flex: 0 0 auto;
      padding: 10px 18px;
      border-radius: 999px;
      font-size: 0.92rem;
      font-weight: 800;
      color: #fff;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--line-strong);
      transition: border-color 0.2s, background 0.2s, transform 0.2s;
    }

    .nav-cta:hover {
      border-color: var(--accent);
      background: rgba(255, 77, 60, 0.14);
      transform: translateY(-1px);
    }

    .article-hero {
      position: relative;
      padding: 62px 0 46px;
      border-bottom: 1px solid var(--line);
      background:
        linear-gradient(180deg, rgba(8, 14, 20, 0.9), rgba(10, 16, 24, 0.88)),
        url("/assets/images/backpic/back-1.png") center / cover no-repeat;
    }

    .article-hero::after {
      content: "";
      position: absolute;
      left: 0;
      right: 0;
      bottom: -1px;
      height: 2px;
      background: linear-gradient(90deg, transparent, rgba(255, 77, 60, 0.7), transparent);
      opacity: 0.7;
    }

    .article-hero .container {
      position: relative;
      z-index: 1;
    }

    .breadcrumb {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 10px;
      color: var(--muted);
      font-size: 0.85rem;
      margin-bottom: 20px;
    }

    .breadcrumb a {
      color: var(--muted);
      transition: color 0.2s;
    }

    .breadcrumb a:hover {
      color: var(--text);
    }

    .breadcrumb-item + .breadcrumb-item::before {
      content: "/";
      margin-right: 10px;
      color: rgba(136, 160, 183, 0.45);
    }

    .article-hero h1 {
      max-width: 900px;
      font-size: clamp(2rem, 4.2vw, 3.35rem);
      font-weight: 900;
      letter-spacing: -0.03em;
      line-height: 1.12;
      text-wrap: balance;
    }

    .hero-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 12px 18px;
      align-items: center;
      margin-top: 24px;
    }

    .meta-chip {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 7px 13px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid var(--line);
      border-radius: 999px;
      color: var(--text-2);
      font-size: 0.82rem;
      font-weight: 600;
    }

    .meta-chip::before {
      content: "";
      width: 7px;
      height: 7px;
      background: var(--ok);
      border-radius: 50%;
      box-shadow: 0 0 8px rgba(46, 229, 167, 0.6);
    }

    .meta-chip.date-chip::before {
      background: var(--amber);
      box-shadow: 0 0 8px rgba(255, 207, 92, 0.5);
    }

    .meta-chip .meta-label {
      color: var(--muted);
    }

    .article-layout {
      padding: 44px 0 30px;
    }

    .article-columns {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 340px;
      gap: 34px;
      align-items: start;
    }

    .article-card {
      background:
        linear-gradient(180deg, rgba(21, 33, 45, 0.5), rgba(13, 21, 29, 0.78));
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: clamp(22px, 4vw, 42px);
      overflow: hidden;
    }

    .article-cover {
      position: relative;
      border-radius: 18px;
      overflow: hidden;
      margin-bottom: 30px;
      border: 1px solid var(--line);
    }

    .article-cover img {
      width: 100%;
      height: 240px;
      object-fit: cover;
    }

    .article-cover::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 45%, rgba(9, 15, 21, 0.64));
    }

    .article-prose {
      font-size: 1.04rem;
      line-height: 1.9;
      color: #d5e1eb;
    }

    .article-prose > * + * {
      margin-top: 1.2em;
    }

    .article-prose h2,
    .article-prose h3,
    .article-prose h4 {
      color: var(--text);
      font-weight: 800;
      line-height: 1.3;
      letter-spacing: -0.01em;
      margin-top: 2em;
    }

    .article-prose h2 {
      font-size: 1.65rem;
      padding-bottom: 0.5em;
      border-bottom: 1px solid var(--line);
    }

    .article-prose h3 {
      font-size: 1.28rem;
    }

    .article-prose p {
      margin: 0 0 1.3em;
    }

    .article-prose a {
      color: var(--cyan);
      text-decoration: underline;
      text-decoration-color: rgba(76, 201, 240, 0.35);
      text-underline-offset: 4px;
    }

    .article-prose a:hover {
      color: #fff;
      text-decoration-color: var(--cyan);
    }

    .article-prose ul,
    .article-prose ol {
      margin: 1.2em 0;
      padding-left: 1em;
    }

    .article-prose ul li,
    .article-prose ol li {
      position: relative;
      padding-left: 1.2em;
      margin-bottom: 0.7em;
    }

    .article-prose ul li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0.82em;
      width: 7px;
      height: 7px;
      border-radius: 2px;
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
    }

    .article-prose ol {
      counter-reset: article-list;
    }

    .article-prose ol li {
      counter-increment: article-list;
      padding-left: 2.2em;
    }

    .article-prose ol li::before {
      content: counter(article-list, decimal-leading-zero);
      position: absolute;
      left: 0;
      top: 0.1em;
      font-size: 0.78rem;
      font-weight: 900;
      color: var(--amber);
      letter-spacing: 0.05em;
    }

    .article-prose blockquote {
      margin: 1.8em 0;
      padding: 16px 22px;
      background: rgba(255, 207, 92, 0.06);
      border-left: 3px solid var(--amber);
      border-radius: 0 14px 14px 0;
      color: var(--text-2);
    }

    .article-prose img {
      border-radius: 14px;
      border: 1px solid var(--line);
    }

    .article-prose code {
      font-size: 0.9em;
      padding: 0.2em 0.45em;
      background: rgba(255, 255, 255, 0.06);
      border: 1px solid var(--line);
      border-radius: 6px;
    }

    .article-prose blockquote p:last-child {
      margin-bottom: 0;
    }

    .article-end {
      margin-top: 38px;
      padding-top: 22px;
      border-top: 1px solid var(--line);
      font-size: 0.85rem;
      color: var(--muted);
      display: flex;
      align-items: center;
      gap: 12px;
    }

    .article-end::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      box-shadow: 0 0 0 4px rgba(255, 77, 60, 0.15);
      background: var(--accent);
    }

    .not-found-card {
      text-align: center;
      padding: 70px 30px;
    }

    .not-found-code {
      font-size: 3.2rem;
      font-weight: 900;
      letter-spacing: 0.12em;
      color: rgba(255, 77, 60, 0.9);
      text-shadow: 0 0 22px rgba(255, 77, 60, 0.3);
    }

    .not-found-card h2 {
      font-size: 1.8rem;
      font-weight: 900;
      margin: 12px 0 10px;
    }

    .not-found-card p {
      color: var(--muted);
      max-width: 440px;
      margin: 0 auto 24px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      border-radius: 999px;
      padding: 11px 20px;
      font-weight: 700;
      transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
      border: 1px solid transparent;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      color: #fff;
      box-shadow: 0 12px 26px rgba(255, 77, 60, 0.26);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      box-shadow: 0 14px 32px rgba(255, 77, 60, 0.38);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.05);
      border-color: var(--line-strong);
    }

    .btn-ghost:hover {
      border-color: var(--accent);
      background: rgba(255, 77, 60, 0.1);
      transform: translateY(-2px);
    }

    .aside-stack {
      display: grid;
      gap: 18px;
      position: sticky;
      top: 100px;
    }

    .side-card {
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 22px;
      position: relative;
      overflow: hidden;
    }

    .side-card::after {
      content: "";
      position: absolute;
      right: -28px;
      top: -28px;
      width: 80px;
      height: 80px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(255, 77, 60, 0.16), transparent 68%);
    }

    .side-card h3 {
      font-size: 1.05rem;
      font-weight: 800;
      margin-bottom: 16px;
    }

    .side-index {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .side-index li {
      display: flex;
      align-items: center;
      gap: 12px;
      color: var(--text-2);
      font-size: 0.92rem;
      line-height: 1.4;
    }

    .side-index .num {
      flex: 0 0 auto;
      width: 26px;
      height: 26px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 8px;
      font-size: 0.75rem;
      font-weight: 900;
      color: var(--amber);
      background: rgba(255, 207, 92, 0.08);
      border: 1px solid rgba(255, 207, 92, 0.16);
    }

    .side-stat-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 10px;
      margin-top: 8px;
    }

    .side-stat {
      background: rgba(255, 255, 255, 0.035);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 13px;
    }

    .side-stat strong {
      display: block;
      font-size: 1.25rem;
      font-weight: 900;
      letter-spacing: -0.02em;
    }

    .side-stat span {
      font-size: 0.75rem;
      color: var(--muted);
    }

    .side-note {
      background: linear-gradient(135deg, rgba(255, 77, 60, 0.15), rgba(255, 138, 61, 0.08));
      border-color: rgba(255, 138, 61, 0.24);
    }

    .side-note h3 {
      margin-bottom: 10px;
    }

    .side-note p {
      color: var(--text-2);
      font-size: 0.92rem;
    }

    .side-note a {
      display: inline-flex;
      align-items: center;
      color: var(--text);
      font-weight: 800;
      margin-top: 14px;
      gap: 6px;
    }

    .side-note a span {
      color: var(--accent-2);
    }

    .section-space {
      padding: 70px 0;
    }

    .section-space + .section-space {
      padding-top: 0;
    }

    .category-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
    }

    .category-card {
      position: relative;
      display: flex;
      flex-direction: column;
      background: var(--surface);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      overflow: hidden;
      transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
    }

    .category-card:hover {
      transform: translateY(-6px);
      border-color: rgba(255, 77, 60, 0.38);
      box-shadow: 0 24px 50px rgba(0, 0, 0, 0.32);
    }

    .category-thumb {
      position: relative;
      height: 146px;
      overflow: hidden;
    }

    .category-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.3, 1);
    }

    .category-card:hover .category-thumb img {
      transform: scale(1.06);
    }

    .category-thumb::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 30%, rgba(10, 15, 21, 0.8));
    }

    .category-badge {
      position: absolute;
      left: 12px;
      top: 12px;
      z-index: 2;
      padding: 4px 10px;
      background: rgba(8, 14, 20, 0.7);
      border: 1px solid rgba(255, 255, 255, 0.14);
      border-radius: 999px;
      backdrop-filter: blur(8px);
      font-size: 0.72rem;
      font-weight: 800;
      color: var(--amber);
    }

    .category-body {
      display: flex;
      flex-direction: column;
      flex: 1;
      padding: 18px 18px 16px;
    }

    .category-body h3 {
      font-size: 1.08rem;
      font-weight: 800;
      letter-spacing: -0.01em;
    }

    .category-body p {
      margin-top: 8px;
      font-size: 0.88rem;
      color: var(--muted);
      line-height: 1.7;
      flex: 1;
    }

    .category-link {
      display: inline-flex;
      align-items: center;
      justify-content: space-between;
      margin-top: 14px;
      font-size: 0.86rem;
      font-weight: 800;
      color: var(--text-2);
      border-top: 1px dashed var(--line-strong);
      padding-top: 12px;
      transition: color 0.2s;
    }

    .category-card:hover .category-link {
      color: var(--text);
    }

    .faq-section {
      background: var(--bg-soft);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .faq-list {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

    .faq-item {
      background: var(--surface);
      border-radius: var(--radius-md);
      border: 1px solid var(--line);
      overflow: hidden;
    }

    .faq-item details {
      padding: 0;
    }

    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      list-style: none;
      cursor: pointer;
      padding: 18px 20px;
      font-weight: 800;
      transition: background 0.2s;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "+";
      font-size: 1.4rem;
      font-weight: 400;
      color: var(--accent-2);
      transition: transform 0.25s ease;
    }

    .faq-item details[open] summary::after {
      transform: rotate(45deg);
    }

    .faq-item details[open] summary {
      border-bottom: 1px solid var(--line);
      background: rgba(255, 255, 255, 0.025);
    }

    .faq-body {
      padding: 16px 20px 20px;
      color: var(--text-2);
      font-size: 0.95rem;
    }

    .cta-band {
      padding: 70px 0 0;
      position: relative;
    }

    .cta-card {
      position: relative;
      border-radius: 26px;
      overflow: hidden;
      padding: 52px;
      background:
        linear-gradient(100deg, rgba(10, 18, 26, 0.94), rgba(16, 28, 38, 0.82)),
        url("/assets/images/backpic/back-2.png") center / cover;
      border: 1px solid var(--line);
      display: grid;
      grid-template-columns: 1.2fr 1fr;
      gap: 48px;
      align-items: center;
    }

    .cta-card::before {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 3px;
      background: linear-gradient(90deg, var(--accent), var(--amber), var(--cyan));
      opacity: 0.8;
    }

    .cta-card h2 {
      font-size: clamp(1.8rem, 3vw, 2.7rem);
      font-weight: 900;
      letter-spacing: -0.03em;
      line-height: 1.2;
      margin-top: 14px;
    }

    .cta-card .cta-desc {
      color: var(--muted);
      margin-top: 12px;
      max-width: 480px;
    }

    .cta-points {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-top: 20px;
    }

    .cta-points span {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(255, 255, 255, 0.05);
      padding: 6px 12px;
      border-radius: 999px;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--text-2);
    }

    .cta-points span::before {
      content: "";
      width: 6px;
      height: 6px;
      border-radius: 50%;
      background: var(--ok);
    }

    .cta-form-box {
      background: rgba(255, 255, 255, 0.045);
      border: 1px solid var(--line);
      border-radius: 20px;
      padding: 24px;
    }

    .cta-form-box p {
      color: var(--muted);
      font-size: 0.9rem;
      margin-bottom: 16px;
    }

    .cta-form {
      display: flex;
      gap: 10px;
    }

    .cta-form input[type="email"] {
      min-width: 0;
      flex: 1;
      padding: 12px 16px;
      background: rgba(0, 0, 0, 0.3);
      border: 1px solid var(--line-strong);
      border-radius: 12px;
      color: #fff;
      transition: border-color 0.2s, box-shadow 0.2s;
    }

    .cta-form input[type="email"]:focus {
      border-color: var(--cyan);
      box-shadow: 0 0 0 4px rgba(76, 201, 240, 0.12);
    }

    .cta-form input[type="email"]::placeholder {
      color: #627d96;
    }

    .cta-form button {
      padding: 12px 18px;
      border-radius: 12px;
      background: linear-gradient(135deg, var(--accent), var(--accent-2));
      color: #fff;
      font-weight: 800;
      white-space: nowrap;
      transition: box-shadow 0.2s, transform 0.2s;
    }

    .cta-form button:hover {
      transform: translateY(-2px);
      box-shadow: 0 12px 28px rgba(255, 77, 60, 0.3);
    }

    .form-feedback {
      min-height: 24px;
      margin-top: 12px;
      font-size: 0.88rem;
      color: var(--ok);
    }

    .footer {
      margin-top: 80px;
      background: #071019;
      border-top: 1px solid var(--line);
      padding: 50px 0 26px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.7fr 1fr 1.4fr;
      gap: 44px;
    }

    .footer-brand p {
      color: var(--muted);
      max-width: 360px;
      margin-top: 16px;
      font-size: 0.95rem;
    }

    .footer h4 {
      font-size: 0.84rem;
      font-weight: 800;
      letter-spacing: 0.1em;
      text-transform: uppercase;
      color: var(--text-2);
      margin-bottom: 18px;
    }

    .footer-links {
      display: grid;
      gap: 10px;
    }

    .footer-links a {
      color: var(--muted);
      transition: color 0.2s, padding-left 0.2s;
    }

    .footer-links a:hover {
      color: var(--text);
      padding-left: 4px;
    }

    .footer-contact {
      color: var(--muted);
      font-size: 0.95rem;
      line-height: 2;
    }

    .footer-contact a {
      color: var(--cyan);
    }

    .footer-contact a:hover {
      color: #fff;
    }

    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      margin-top: 40px;
      padding-top: 20px;
      color: var(--muted);
      font-size: 0.85rem;
    }

    a:focus-visible,
    button:focus-visible,
    input:focus-visible,
    summary:focus-visible {
      outline: 3px solid rgba(76, 201, 240, 0.45);
      outline-offset: 2px;
    }

    @media (max-width: 1080px) {
      .header-inner {
        flex-wrap: wrap;
        border-radius: 22px;
        padding: 12px 14px;
      }

      .brand-logo {
        margin-right: auto;
      }

      .nav-panel {
        order: 3;
        width: 100%;
        overflow-x: auto;
        justify-content: flex-start;
        border-radius: 14px;
        scrollbar-width: none;
      }

      .nav-panel::-webkit-scrollbar {
        display: none;
      }

      .article-columns {
        grid-template-columns: minmax(0, 1fr) 300px;
        gap: 24px;
      }

      .category-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .category-thumb {
        height: 170px;
      }
    }

    @media (max-width: 860px) {
      .article-columns {
        grid-template-columns: 1fr;
      }

      .aside-stack {
        position: static;
        grid-template-columns: repeat(2, minmax(0, 1fr));
      }

      .faq-list {
        grid-template-columns: 1fr;
      }

      .cta-card {
        grid-template-columns: 1fr;
        padding: 40px 26px;
        gap: 24px;
      }

      .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
      }

      .footer-brand {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 640px) {
      .brand-logo {
        font-size: 1.05rem;
      }

      .nav-cta {
        font-size: 0.82rem;
        padding: 8px 12px;
      }

      .nav-link {
        font-size: 0.85rem;
        padding: 8px 11px;
      }

      .section-space {
        padding: 54px 0;
      }

      .section-head {
        align-items: flex-start;
        flex-direction: column;
      }

      .article-card {
        padding: 24px 18px;
      }

      .article-cover img {
        height: 190px;
      }

      .article-hero {
        padding: 44px 0 36px;
      }

      .side-card {
        padding: 18px;
      }

      .category-grid {
        grid-template-columns: 1fr;
      }

      .category-thumb {
        height: 180px;
      }

      .cta-form {
        flex-direction: column;
      }

      .cta-form button {
        width: 100%;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 26px;
      }

      .footer-brand {
        grid-column: auto;
      }

      .footer-bottom {
        flex-direction: column;
        justify-content: center;
        text-align: center;
      }
    }

    @media (max-width: 400px) {
      .container {
        width: 95%;
      }

      .hero-meta {
        flex-direction: column;
        align-items: flex-start;
      }

      .aside-stack {
        grid-template-columns: 1fr;
      }
    }

/* roulang page: category1 */
:root {
  --site-max: 1200px;
  --bg-deep: #0a0e17;
  --bg-body: #0e1522;
  --surface: #162238;
  --surface-raised: #1d2c47;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.14);
  --text: #f4f7fd;
  --muted: #9db0c9;
  --brand: #ffd166;
  --brand-deep: #f4a82e;
  --accent: #f56b8f;
  --teal: #2ee6c3;
  --radius-lg: 26px;
  --radius-md: 18px;
  --radius-pill: 999px;
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.35);
  --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.2);
  --transition: 0.25s cubic-bezier(0.2, 0.7, 0.3, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 130px;
}

body,
h1,
h2,
h3,
h4,
p,
ul,
ol,
figure,
blockquote,
dl,
dd {
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Noto Sans SC", "Microsoft YaHei", "Segoe UI", system-ui, sans-serif;
  background: var(--bg-body);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
}

button {
  cursor: pointer;
  border: 0;
}

ul[class],
ol[class] {
  list-style: none;
}

.container {
  max-width: var(--site-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 22px;
  padding-right: 22px;
}

.section {
  padding: 84px 0;
}

.section-head {
  max-width: 880px;
  margin-bottom: 44px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--brand);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.eyebrow::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 2px;
  transform: rotate(45deg);
  background: var(--accent);
}

h1,
h2,
h3,
h4 {
  line-height: 1.25;
  font-weight: 800;
  letter-spacing: -0.015em;
}

h2 {
  font-size: clamp(26px, 4vw, 40px);
  margin-bottom: 14px;
}

.section-sub {
  color: var(--muted);
  font-size: 17px;
  margin-top: 14px;
}

.hl-brand {
  color: var(--brand);
}

/* ===== Shared Header ===== */
.header-inner {
  position: sticky;
  top: 12px;
  z-index: 80;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px 16px;
  margin-top: 16px;
  padding-top: 10px;
  padding-bottom: 10px;
  background: rgba(10, 14, 23, 0.78);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  box-shadow: var(--shadow-sm);
}

.brand-logo {
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  color: #fff;
  border-radius: 14px;
  transition: var(--transition);
}

.brand-logo:hover {
  background: rgba(255, 255, 255, 0.04);
  color: var(--brand);
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 5px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-pill);
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 15px;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  color: #d4dcee;
  white-space: nowrap;
  transition: 0.22s ease;
}

.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.nav-link.active {
  color: #131313;
  background: var(--brand);
  box-shadow: 0 4px 16px rgba(255, 209, 102, 0.3);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  background: transparent;
  border: 1px solid rgba(255, 209, 102, 0.5);
  color: var(--brand);
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--brand);
  color: #111;
  border-color: var(--brand);
}

.icon-arrow,
.arrow {
  display: inline-block;
  transition: transform 0.2s;
}

.nav-cta:hover .icon-arrow,
.text-link:hover .arrow,
.btn-gold:hover .icon-arrow {
  transform: translate(3px, -3px);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 48px;
  padding: 11px 24px;
  border-radius: 16px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  transition: var(--transition);
  border: 1px solid transparent;
}

.btn-gold {
  background: linear-gradient(135deg, var(--brand), #ff9e4d);
  color: #191211;
  box-shadow: 0 8px 28px rgba(255, 194, 80, 0.2);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(255, 194, 80, 0.34);
}

.btn-outline {
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.06);
  color: #fff;
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.35);
  transform: translateY(-2px);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand);
  font-weight: 700;
  font-size: 15px;
  border-bottom: 1px solid rgba(255, 209, 102, 0);
  transition: var(--transition);
}

.text-link:hover {
  border-color: rgba(255, 209, 102, 0.5);
}

/* ===== Hero ===== */
.hero-category {
  position: relative;
  padding: 80px 0 74px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 35%;
  z-index: 0;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(29, 44, 71, 0.25), transparent 55%),
    linear-gradient(105deg, rgba(8, 11, 20, 0.94) 0%, rgba(10, 15, 25, 0.8) 55%, rgba(9, 14, 22, 0.36) 100%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(280px, 420px);
  gap: 46px;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #cbd7ef;
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(8px);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--teal);
  box-shadow: 0 0 0 0 rgba(46, 230, 195, 0.5);
  animation: pulseDot 1.8s infinite;
}

@keyframes pulseDot {
  70% {
    box-shadow: 0 0 0 12px rgba(46, 230, 195, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(46, 230, 195, 0);
  }
}

.hero-copy h1 {
  font-size: clamp(34px, 6vw, 64px);
  letter-spacing: -0.04em;
  margin: 20px 0 18px;
  color: #fff;
}

.hero-copy h1 span {
  color: var(--brand);
}

.hero-lead {
  color: #b9c7dc;
  font-size: 17px;
  max-width: 600px;
  margin-bottom: 30px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 26px;
}

.hero-evidence {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 26px;
  color: #aab9cf;
  font-size: 13px;
  font-weight: 500;
}

.hero-evidence li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-evidence li::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

/* Hero rhythm card */
.hero-card {
  min-width: 0;
}

.rhythm-stage {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: 30px;
  box-shadow: var(--shadow-lg);
  padding: 22px;
  position: relative;
  overflow: hidden;
}

.rhythm-stage::before {
  content: "";
  position: absolute;
  right: -40px;
  top: -40px;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 209, 102, 0.28), transparent 68%);
  pointer-events: none;
}

.rhythm-stage-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 22px;
  font-size: 13px;
  color: #dbe3f2;
}

.rhythm-stage-top .bpm {
  background: rgba(255, 209, 102, 0.2);
  color: var(--brand);
  font-weight: 900;
  border-radius: var(--radius-pill);
  padding: 4px 12px;
  font-size: 13px;
  letter-spacing: 0.05em;
}

.rhythm-strip {
  height: 74px;
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 20px;
}

.beat-bar {
  width: 10px;
  height: 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.32);
  transform-origin: center;
  animation: beatmove 1s ease-in-out infinite;
}

.beat-bar.big {
  background: var(--brand);
  transform: scaleY(0.8);
  animation-name: beatMoveMain;
}

.beat-bar:nth-child(1),
.beat-bar:nth-child(13) {
  animation-delay: 0s;
}

.beat-bar:nth-child(4),
.beat-bar:nth-child(7),
.beat-bar:nth-child(10) {
  background: var(--accent);
  animation-delay: 0.75s;
}

@keyframes beatmove {
  0%, 78%, 100% {
    height: 12px;
    background: rgba(255, 255, 255, 0.28);
  }
  25% {
    height: 48px;
    background: rgba(255, 255, 255, 0.72);
  }
  80% {
    background: rgba(255, 255, 255, 0.28);
  }
}

@keyframes beatMoveMain {
  0%, 72%, 100% {
    height: 34px;
    background: var(--brand);
  }
  18% {
    height: 68px;
    background: #fff3cc;
  }
}

.rhythm-note-title {
  font-weight: 900;
  font-size: 20px;
  margin-bottom: 6px;
}

.rhythm-stage p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 16px;
}

.rhythm-tag {
  display: flex;
  gap: 8px;
}

.rhythm-tag span {
  font-size: 12px;
  background: rgba(255, 255, 255, 0.11);
  border: 1px solid rgba(255, 255, 255, 0.08);
  padding: 4px 11px;
  border-radius: 999px;
  color: #aab9cf;
}

/* Feature strip stripe */
.feature-strip {
  position: relative;
  z-index: 2;
  margin-top: -37px;
  margin-bottom: 20px;
}

.feature-strip-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 14px 28px;
  background: rgba(13, 18, 30, 0.88);
  backdrop-filter: blur(16px);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 17px 24px;
  box-shadow: var(--shadow-sm);
  font-size: 14px;
  color: #c3cfe0;
}

.feature-strip .fi {
  display: flex;
  gap: 10px;
  align-items: center;
}

.feature-strip .fi::before {
  content: "✓";
  display: inline-flex;
  width: 22px;
  height: 22px;
  align-items: center;
  justify-content: center;
  flex: none;
  font-size: 12px;
  font-weight: 900;
  border-radius: 50%;
  color: #0d1a14;
  background: var(--teal);
}

/* route */
.route-section {
  background: linear-gradient(180deg, var(--bg-deep), transparent 200px);
  margin-top: 12px;
}

.route-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.route-item {
  display: grid;
  grid-template-columns: 76px 220px 1fr;
  gap: 24px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 26px 28px;
  align-items: start;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.route-item::after {
  content: "";
  position: absolute;
  right: 0;
  top: 0;
  height: 100%;
  width: 3px;
  background: linear-gradient(180deg, var(--brand), transparent);
  opacity: 0.55;
}

.route-item:hover {
  background: var(--surface-raised);
  transform: translateX(6px);
  border-color: var(--line-strong);
}

.route-num {
  font-size: 28px;
  font-weight: 900;
  line-height: 1;
  color: transparent;
  background: linear-gradient(120deg, var(--brand), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
}

.route-range {
  font-size: 14px;
  color: var(--brand);
  font-weight: 800;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 9px;
}

.route-body h3 {
  font-size: 19px;
  margin-bottom: 8px;
}

.route-body p {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 12px;
}

.route-body ul {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 14px;
  color: #c7d1e2;
  font-size: 13px;
  margin-top: 8px;
}

.route-body li {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
}

.route-body li::before {
  content: "";
  width: 5px;
  height: 5px;
  background: var(--teal);
  border-radius: 50%;
  flex: none;
}

/* split module */
.who-panel {
  background: #101827;
  margin-top: 70px;
  margin-bottom: 70px;
  border-radius: 36px;
  max-width: calc(var(--site-max) - 16px);
}

.who-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  align-items: center;
  gap: 44px;
  padding: 30px 48px;
}

.who-media {
  position: relative;
  border-radius: 26px;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.who-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 14, 23, 0.7), transparent 55%);
  pointer-events: none;
}

.who-copy h2 {
  max-width: 480px;
}

.check-list {
  display: grid;
  gap: 15px;
  margin: 24px 0 30px;
}

.check-list li {
  position: relative;
  padding-left: 29px;
  color: #c7d2e4;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 15px;
  height: 15px;
  border-radius: 5px;
  transform: rotate(45deg);
  background: rgba(255, 209, 102, 0.2);
  border: 1px solid var(--brand);
}

/* process */
.process-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 32px;
  padding: 38px 34px;
}

.process-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: 26px;
}

.process-step {
  position: relative;
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 20px;
  padding: 24px;
  background: rgba(255, 255, 255, 0.035);
}

.process-step .pnum {
  font-size: 14px;
  font-weight: 800;
  color: var(--brand);
  margin-bottom: 12px;
  display: flex;
  justify-content: space-between;
}

.process-step .pnum::before {
  content: "STEP";
  display: inline-block;
  color: #6c7890;
  letter-spacing: 0.1em;
  font-size: 11px;
  margin-right: auto;
  margin-left: 10px;
  padding-top: 2px;
}

.process-step h3 {
  margin-bottom: 10px;
}

.process-step p {
  font-size: 14px;
  color: var(--muted);
}

/* ======== news/social proof module ======== */
.news-section {
  background:
    radial-gradient(ellipse at 20% 20%, rgba(255, 209, 102, 0.06), transparent 45%),
    var(--bg-body);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.testimonial-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.t-card {
  border-radius: 20px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.045);
  padding: 26px 24px;
}

.t-card .tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 700;
  color: var(--brand);
  background: rgba(255, 209, 102, 0.14);
  border: 1px solid rgba(255, 209, 102, 0.25);
  border-radius: var(--radius-pill);
  padding: 3px 11px;
  margin-bottom: 16px;
}

.t-card blockquote {
  color: #cbd6e5;
  font-size: 15px;
  line-height: 1.8;
}

.hint-note {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--muted);
  font-size: 13px;
  margin-top: 24px;
  padding: 15px 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed var(--line-strong);
  border-radius: 16px;
}

/* faq */
.faq-wrap {
  max-width: 920px;
}

.faq-item {
  border-bottom: 1px solid var(--line);
  background: transparent;
}

.faq-item summary {
  cursor: pointer;
  padding: 23px 10px 23px 8px;
  list-style: none;
  font-size: 17px;
  font-weight: 700;
  display: flex;
  justify-content: space-between;
  gap: 20px;
  align-items: center;
  transition: color 0.2s;
}

.faq-item summary:hover {
  color: var(--brand);
}

.faq-item summary::after {
  content: "+";
  font-size: 26px;
  font-weight: 300;
  color: var(--brand);
  transition: transform 0.25s;
  flex: none;
}

.faq-item[open] summary::after {
  content: "–";
  transform: rotate(180deg);
}

.faq-item .ans {
  padding: 0 30px 24px 10px;
  color: var(--muted);
  font-size: 15px;
}

/* CTA =========== */
.footer-cta-panel {
  border-radius: 34px;
  padding: 54px 42px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: radial-gradient(ellipse at 80% 20%, rgba(255, 209, 102, 0.16), transparent 50%),
    linear-gradient(135deg, #0e1830, #1b2344 70%, #202a4d);
  position: relative;
  overflow: hidden;
}

.footer-cta-panel h2 {
  font-size: clamp(22px, 3.4vw, 36px);
  max-width: 700px;
}

.footer-cta-panel p {
  color: var(--muted);
  margin: 16px 0 28px;
  max-width: 650px;
  font-size: 16px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.mail-hint {
  font-size: 13px;
  color: #8294ad;
}

.mail-hint a {
  color: var(--brand);
  border-bottom: 1px solid rgba(255, 209, 102, 0.3);
}

/* Footer */
.footer {
  background: #070b12;
  padding: 52px 0 26px;
  margin-top: 70px;
  border-top: 1px solid var(--line);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 42px;
  padding-bottom: 34px;
}

.footer-brand p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
  max-width: 400px;
  margin-top: 14px;
}

.footer h4 {
  font-size: 14px;
  margin-bottom: 16px;
  letter-spacing: 0.06em;
  color: #eaedf5;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--muted);
  font-size: 14px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--brand);
  padding-left: 6px;
}

.footer-contact {
  font-size: 14px;
  color: var(--muted);
  line-height: 2.2;
}

.footer-contact a {
  color: #c4cedf;
  border-bottom: 1px solid rgba(255, 255, 255, 0.18);
}

.footer-contact a:hover {
  color: var(--brand);
  border-color: var(--brand);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 22px;
  font-size: 13px;
  color: #60708a;
}

/* Focus / accessibility */
a:focus-visible,
summary:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(255, 209, 102, 0.6);
  outline-offset: 3px;
}

:focus:not(:focus-visible) {
  outline: 0;
}

/* ========= Responsive ========= */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .hero-card {
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
  }

  .route-item {
    grid-template-columns: 50px 1fr;
  }

  .route-range {
    grid-row: 1;
    grid-column: auto;
  }

  .route-num {
    grid-row: span 2;
    align-self: center;
  }

  .whos-wrap {
    grid-template-columns: 1fr;
  }

  .who-grid {
    grid-template-columns: 1fr;
    padding: 28px;
  }

  .who-media {
    max-height: 380px;
  }

  .testimonial-list {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 820px) {
  .header-inner {
    flex-wrap: wrap;
    position: sticky;
    top: 8px;
    gap: 8px;
  }

  .nav-panel {
    order: 3;
    width: 100%;
    overflow-x: auto;
    scrollbar-width: none;
    justify-content: flex-start;
    padding-bottom: 4px;
  }

  .nav-panel::-webkit-scrollbar {
    display: none;
  }

  .nav-link {
    flex: none;
  }

  .process-grid,
  .testimonial-list {
    grid-template-columns: 1fr;
  }

  .route-item {
    grid-template-columns: 1fr;
    padding: 22px;
  }

  .route-num {
    grid-row: auto;
  }

  .section {
    padding: 62px 0;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .brand-logo {
    font-size: 17px;
    padding: 5px 4px;
  }

  .nav-cta {
    font-size: 12px;
    padding: 8px 12px;
  }

  .feature-strip-inner {
    padding: 16px 18px;
    gap: 10px;
  }

  .hero-category {
    padding-top: 58px;
    padding-bottom: 66px;
  }

  .hero-copy h1 {
    font-size: 32px;
    line-height: 1.18;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .rhythm-stage {
    padding: 19px;
    border-radius: 22px;
  }

  .rhythm-strip {
    overflow: hidden;
  }

  .beat-bar {
    min-width: 7px;
  }

  .who-grid,
  .process-panel,
  .footer-cta-panel {
    padding: 20px;
  }

  .footer-cta-panel {
    padding: 32px 22px;
  }

  .footer-bottom {
    justify-content: flex-start;
    text-align: left;
  }
}

/* roulang page: category4 */
:root{
  --bg:#f4f6fa;
  --paper:#ffffff;
  --dark:#0a0f14;
  --dark-2:#111920;
  --ink:#18212c;
  --muted:#5c6978;
  --line:#dfe5ec;
  --accent:#e5484d;
  --accent-strong:#ff4b4f;
  --amber:#f7b52b;
  --cyan:#25c3a6;
  --blue:#2e86ff;
  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:9px;
  --shadow-sm:0 6px 18px rgba(15,23,42,.06);
  --shadow-md:0 18px 44px rgba(15,23,42,.10);
  --shadow-lg:0 24px 70px rgba(15,23,42,.16);
  --space-section:110px;
  --transition:all .25s ease;
}
*{
  box-sizing:border-box;
}
html{
  scroll-behavior:smooth;
}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"Inter","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--ink);
  line-height:1.75;
  text-rendering:optimizeLegibility;
  -webkitFontSmoothing:antialiased;
}
body, h1, h2, h3, h4, p, ul, ol, figure{
  margin:0;
}
ul, ol{
  padding:0;
  list-style:none;
}
a{
  color:inherit;
  text-decoration:none;
}
button, input, textarea, select{
  font:inherit;
}
img{
  display:block;
  max-width:100%;
}
::selection{
  background:rgba(229,72,77,.16);
}

.container{
  width:min(1180px, calc(100% - 36px));
  margin-inline:auto;
}
.section{
  padding-block:var(--space-section);
}
.section-head{
  max-width:760px;
  margin-bottom:50px;
}
.section-label{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(229,72,77,.08);
  color:#c12b32;
  font-size:13px;
  font-weight:700;
  letter-spacing:.05em;
  border-radius:999px;
  padding:7px 16px;
  margin-bottom:18px;
  text-transform:uppercase;
}
.section-label::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(229,72,77,.14);
}
.section-title{
  font-size:clamp(28px, 4vw, 42px);
  line-height:1.25;
  letter-spacing:-.02em;
  font-weight:800;
  color:#0c1116;
}
.section-sub{
  margin-top:18px;
  color:var(--muted);
  font-size:16px;
  line-height:1.9;
}
.text-accent{
  color:var(--accent);
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  font-weight:700;
  font-size:15px;
  line-height:1;
  padding:16px 26px;
  border-radius:999px;
  transition:var(--transition);
  cursor:pointer;
  border:1px solid transparent;
}
.btn-primary{
  background:#fff;
  color:#0a0f14;
  box-shadow:0 8px 25px rgba(0,0,0,.15);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(0,0,0,.22);
}
.btn-ghost{
  background:rgba(255,255,255,.05);
  color:#fff;
  border-color:rgba(255,255,255,.25);
}
.btn-ghost:hover{
  border-color:rgba(255,255,255,.65);
  background:rgba(255,255,255,.12);
  transform:translateY(-2px);
}
.btn-solid{
  background:var(--accent-strong);
  color:#fff;
  box-shadow:0 10px 30px rgba(229,72,77,.25);
}
.btn-solid:hover{
  background:#d9393e;
  transform:translateY(-2px);
  box-shadow:0 14px 32px rgba(229,72,77,.35);
}
.icon-arrow{
  display:inline-block;
  transition:transform .25s ease;
}
a:hover .icon-arrow{
  transform:translate(3px,-3px);
}

.header-inner{
  position:sticky;
  top:14px;
  z-index:100;
  display:flex;
  align-items:center;
  gap:18px;
  width:min(1180px, calc(100% - 32px));
  margin-top:14px;
  padding:10px 12px 10px 22px;
  background:rgba(9,14,20,.92);
  border:1px solid rgba(255,255,255,.08);
  border-radius:22px;
  box-shadow:0 18px 50px rgba(2,8,18,.35);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.brand-logo{
  font-size:22px;
  font-weight:850;
  color:#fff;
  letter-spacing:-.03em;
  line-height:1.2;
  white-space:nowrap;
}
.brand-logo::first-letter{
  color:var(--accent-strong);
}
.nav-panel{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1;
  overflow-x:auto;
  scrollbar-width:none;
  padding-block:4px;
}
.nav-panel::-webkit-scrollbar{
  display:none;
}
.nav-link{
  color:rgba(255,255,255,.7);
  font-size:14.5px;
  font-weight:600;
  white-space:nowrap;
  padding:10px 14px;
  border-radius:11px;
  transition:var(--transition);
}
.nav-link:hover{
  color:#fff;
  background:rgba(255,255,255,.06);
}
.nav-link.active{
  color:#fff;
  background:rgba(229,72,77,.16);
  box-shadow:inset 0 -2px 0 var(--accent-strong);
}
.nav-cta{
  color:#fff;
  font-size:14px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:11px 18px;
  border-radius:999px;
  background:var(--accent-strong);
  white-space:nowrap;
  border:1px solid rgba(255,255,255,.1);
  transition:var(--transition);
}
.nav-cta:hover{
  background:#d3363b;
  transform:translateY(-1px);
}
.nav-cta .icon-arrow{
  font-size:16px;
}

.hero{
  position:relative;
  overflow:hidden;
  color:#fff;
  border-radius:0 0 40px 40px;
  background:
    linear-gradient(110deg, rgba(5,9,13,.96) 0%, rgba(8,13,20,.88) 48%, rgba(13,20,29,.58) 100%),
    url('/assets/images/backpic/back-1.png') center 25% / cover no-repeat,
    #0d141b;
}
.hero .container{
  padding-block:112px 100px;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:56px;
  align-items:center;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--amber);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.15);
  font-size:13.5px;
  font-weight:700;
  padding:8px 16px;
  border-radius:999px;
  letter-spacing:.06em;
}
.hero-eyebrow::before{
  content:"";
  width:7px;
  height:7px;
  background:var(--accent-strong);
  border-radius:50%;
  box-shadow:0 0 0 5px rgba(229,72,77,.25);
}
.hero h1{
  margin-top:28px;
  font-size:clamp(36px, 6vw, 64px);
  line-height:1.12;
  font-weight:900;
  letter-spacing:-.035em;
}
.hero h1 .line-outline{
  color:transparent;
  -webkit-text-stroke:1.5px rgba(255,255,255,.84);
}
.hero-desc{
  margin-top:22px;
  max-width:600px;
  color:rgba(255,255,255,.74);
  font-size:17px;
  line-height:1.95;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:34px;
}
.hero-meta{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-top:50px;
  max-width:600px;
}
.hero-meta-item{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:16px;
  padding:16px 16px;
  backdrop-filter:blur(4px);
}
.hero-meta-item strong{
  display:block;
  font-size:24px;
  font-weight:850;
  color:#fff;
  line-height:1.2;
}
.hero-meta-item span{
  font-size:13px;
  color:rgba(255,255,255,.62);
}
.hero-visual{
  position:relative;
}
.hero-visual-main{
  border-radius:24px;
  border:1px solid rgba(255,255,255,.14);
  overflow:hidden;
  box-shadow:25px 30px 80px rgba(0,0,0,.35);
}
.hero-visual-main img{
  width:100%;
  aspect-ratio:4/4.6;
  object-fit:cover;
}
.hero-float-card{
  position:absolute;
  right:-10px;
  bottom:-16px;
  background:rgba(255,255,255,.96);
  color:#0d141b;
  padding:15px 20px;
  border-radius:16px;
  box-shadow:0 18px 40px rgba(0,0,0,.24);
  backdrop-filter:blur(8px);
  max-width:220px;
}
.hero-float-card strong{
  display:block;
  font-size:20px;
  color:#0d141b;
  line-height:1.25;
}
.hero-float-card span{
  font-size:13px;
  color:#4b5968;
}
.hero-float-tag{
  position:absolute;
  left:-8px;
  top:22px;
  background:var(--accent-strong);
  color:#fff;
  font-size:12.5px;
  font-weight:800;
  letter-spacing:.05em;
  padding:7px 13px;
  border-radius:8px;
  box-shadow:0 10px 26px rgba(229,72,77,.35);
}

.advantage-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
}
.panel-card{
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:30px 24px;
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.panel-card::after{
  content:"";
  position:absolute;
  left:0;
  top:0;
  width:100%;
  height:3px;
  background:linear-gradient(90deg,var(--accent-strong),rgba(229,72,77,.15));
  transform:scaleX(0);
  transform-origin:left;
  transition:var(--transition);
}
.panel-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-md);
  border-color:#d4dbe3;
}
.panel-card:hover::after{
  transform:scaleX(1);
}
.card-icon{
  width:46px;
  height:46px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:13px;
  background:#0d141b;
  color:#fff;
  font-size:21px;
  font-weight:800;
  margin-bottom:22px;
  box-shadow:0 8px 20px rgba(10,15,22,.16);
}
.card-title{
  font-size:19px;
  font-weight:800;
  line-height:1.4;
  letter-spacing:-.01em;
  margin-bottom:12px;
}
.card-desc{
  font-size:14.8px;
  color:var(--muted);
  line-height:1.85;
}

.method-section{
  background:#0a0f14;
  color:#fff;
  border-radius:40px;
}
.method-panel{
  display:grid;
  grid-template-columns:1fr 1.1fr;
  gap:60px;
  align-items:center;
}
.method-copy .section-title{
  color:#fff;
}
.method-copy .section-sub{
  color:rgba(255,255,255,.66);
}
.method-copy .highlight-note{
  margin-top:28px;
  padding:20px 22px;
  background:rgba(255,255,255,.05);
  border-left:4px solid var(--accent-strong);
  border-radius:12px;
  color:rgba(255,255,255,.75);
  font-size:15px;
  line-height:1.85;
}
.check-list{
  display:grid;
  gap:12px;
}
.check-item{
  display:flex;
  align-items:flex-start;
  gap:15px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.08);
  border-radius:16px;
  padding:20px 22px;
  transition:var(--transition);
}
.check-item:hover{
  background:rgba(255,255,255,.085);
  transform:translateX(-4px);
}
.check-item i{
  flex:none;
  width:26px;
  height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--accent-strong);
  color:#fff;
  font-style:normal;
  font-size:13px;
  font-weight:900;
  margin-top:3px;
}
.check-item h3{
  font-size:16.5px;
  margin-bottom:4px;
  color:#fff;
}
.check-item p{
  color:rgba(255,255,255,.6);
  font-size:14.5px;
  line-height:1.8;
}

.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.scene-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:22px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
}
.scene-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-md);
}
.scene-media{
  aspect-ratio:1.5/1;
  overflow:hidden;
  background:#0a0f14;
}
.scene-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.scene-card:hover .scene-media img{
  transform:scale(1.05);
}
.scene-body{
  padding:24px 22px;
}
.scene-body h3{
  font-size:19px;
  font-weight:800;
  margin-bottom:9px;
}
.scene-body p{
  color:var(--muted);
  font-size:14.8px;
  line-height:1.85;
}
.scene-facets{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-top:15px;
}
.facet{
  padding:5px 11px;
  border-radius:7px;
  background:#f2f4f7;
  color:#3d4b5c;
  font-size:12.5px;
  font-weight:700;
}

.gear-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.gear-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:22px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
  display:flex;
  flex-direction:column;
}
.gear-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-lg);
}
.gear-thumb{
  aspect-ratio:1.5/1.1;
  overflow:hidden;
  background:#0a0f14;
  position:relative;
}
.gear-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.gear-card:hover .gear-thumb img{
  transform:scale(1.06);
}
.gear-tag{
  position:absolute;
  left:14px;
  top:14px;
  background:rgba(10,15,20,.78);
  color:#fff;
  font-size:12.5px;
  font-weight:700;
  padding:7px 13px;
  border-radius:999px;
  backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.16);
}
.gear-body{
  padding:22px 22px 24px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.gear-body h3{
  font-size:17.5px;
  font-weight:800;
  line-height:1.5;
  margin-bottom:9px;
}
.gear-body p{
  font-size:14.3px;
  color:var(--muted);
  line-height:1.85;
  flex:1;
}
.gear-foot{
  margin-top:18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-top:1px dashed #e8ebf0;
  padding-top:16px;
}
.gear-score{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:#0d141b;
  font-weight:800;
  font-size:14px;
}
.gear-score span{
  color:var(--accent-strong);
}
.gear-link{
  color:var(--accent-strong);
  font-size:13.5px;
  font-weight:700;
  transition:var(--transition);
}
.gear-link:hover{
  color:#b42f34;
}

.process-wrap{
  background:linear-gradient(135deg,#0a0f14 0%,#111920 100%);
  border-radius:40px;
  color:#fff;
  overflow:hidden;
}
.process-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:18px;
  counter-reset:process;
}
.process-step{
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.09);
  border-radius:20px;
  padding:26px 20px;
  position:relative;
  transition:var(--transition);
  height:100%;
}
.process-step:hover{
  background:rgba(255,255,255,.09);
  transform:translateY(-4px);
}
.process-num{
  display:block;
  width:42px;
  height:42px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(229,72,77,.18);
  color:#fc6a6e;
  border:1px solid rgba(255,255,255,.12);
  font-size:17px;
  font-weight:900;
  border-radius:12px;
  margin-bottom:22px;
}
.process-step h3{
  font-size:16px;
  font-weight:800;
  margin-bottom:10px;
}
.process-step p{
  font-size:13.6px;
  line-height:1.8;
  color:rgba(255,255,255,.62);
}

.budget-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:26px;
}
.budget-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:24px;
  padding:32px 28px;
  box-shadow:var(--shadow-sm);
  position:relative;
  transition:var(--transition);
}
.budget-card:hover{
  box-shadow:var(--shadow-lg);
  transform:translateY(-6px);
}
.budget-popular{
  border:2px solid var(--accent-strong);
  box-shadow:0 14px 36px rgba(229,72,77,.13);
}
.budget-badge{
  position:absolute;
  top:-13px;
  right:24px;
  background:var(--accent-strong);
  color:#fff;
  font-size:12px;
  font-weight:800;
  padding:5px 13px;
  border-radius:999px;
  box-shadow:0 8px 18px rgba(229,72,77,.3);
}
.budget-top{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:20px;
  padding-bottom:20px;
  border-bottom:1px dashed #e5e9ef;
}
.budget-icon{
  width:54px;
  height:54px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:#0d141b;
  color:#fff;
  font-size:22px;
  border-radius:17px;
}
.budget-range{
  font-size:15px;
  color:#3c4b5b;
  font-weight:600;
}
.budget-title{
  font-size:23px;
  font-weight:850;
  color:#0d141b;
  line-height:1.25;
}
.budget-list{
  display:grid;
  gap:12px;
  margin-bottom:28px;
}
.budget-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14.8px;
  color:#42515f;
  line-height:1.7;
}
.budget-list li::before{
  content:"✓";
  flex:none;
  width:20px;
  height:20px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(25,195,166,.1);
  color:#15937d;
  border-radius:6px;
  font-size:12px;
  font-weight:900;
  margin-top:4px;
}
.budget-note{
  background:#f7f8fb;
  border-radius:13px;
  padding:14px 16px;
  font-size:13.6px;
  color:#637080;
  line-height:1.75;
}

.faq-wrap{
  max-width:900px;
  margin-inline:auto;
}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:16px;
  margin-bottom:14px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:#c9d2dc;
  box-shadow:var(--shadow-sm);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 24px;
  font-size:17px;
  font-weight:750;
  color:#0d141b;
  transition:var(--transition);
}
.faq-item summary::-webkit-details-marker{
  display:none;
}
.faq-item summary::after{
  content:"+";
  flex:none;
  width:34px;
  height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:#f1f3f6;
  color:#2a3746;
  font-size:20px;
  font-weight:500;
  transition:var(--transition);
}
.faq-item[open] summary::after{
  content:"−";
  background:var(--accent-strong);
  color:#fff;
  transform:rotate(180deg);
}
.faq-answer{
  padding:0 24px 22px;
  color:var(--muted);
  font-size:15px;
  line-height:1.9;
}

.cta-section{
  padding-bottom:110px;
}
.cta-box{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(105deg, rgba(6,9,14,.96) 0%, rgba(14,22,32,.9) 54%, rgba(20,33,47,.82) 100%),
    url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
  border-radius:32px;
  padding:64px 56px;
  color:#fff;
  box-shadow:var(--shadow-lg);
}
.cta-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:50px;
  align-items:center;
}
.cta-box h2{
  font-size:clamp(28px, 4vw, 42px);
  line-height:1.25;
  font-weight:900;
  letter-spacing:-.02em;
  margin-bottom:16px;
}
.cta-box p{
  color:rgba(255,255,255,.72);
  line-height:1.9;
  font-size:16px;
  max-width:560px;
}
.cta-list{
  display:grid;
  gap:9px;
  margin-top:26px;
}
.cta-list li{
  display:flex;
  gap:10px;
  align-items:center;
  font-size:14px;
  color:rgba(255,255,255,.62);
}
.cta-list li::before{
  content:"✓";
  width:20px;
  height:20px;
  background:var(--accent-strong);
  color:#fff;
  font-size:11px;
  border-radius:7px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:900;
}
.cta-form-card{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(14px);
  border-radius:22px;
  padding:30px;
  text-align:center;
}
.cta-form-card strong{
  display:block;
  font-size:19px;
  margin-bottom:8px;
}
.cta-form-card span{
  display:block;
  font-size:13.5px;
  color:rgba(255,255,255,.58);
  line-height:1.8;
  margin-bottom:20px;
}
.cta-form-card .btn{
  width:100%;
}

.footer{
  background:#080c11;
  color:rgba(255,255,255,.66);
  padding:64px 0 30px;
  border-top:1px solid rgba(255,255,255,.05);
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1.5fr;
  gap:44px;
  padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.54);
  max-width:340px;
}
.footer h4{
  color:#fff;
  font-size:16px;
  margin-bottom:18px;
  font-weight:800;
}
.footer-links{
  display:grid;
  gap:11px;
}
.footer-links a{
  font-size:14.3px;
  color:rgba(255,255,255,.6);
  transition:var(--transition);
}
.footer-links a:hover{
  color:#fff;
  padding-left:5px;
}
.footer-contact{
  font-size:14px;
  line-height:2.1;
  color:rgba(255,255,255,.6);
}
.footer-contact a{
  color:rgba(255,255,255,.8);
  border-bottom:1px solid rgba(255,255,255,.25);
  transition:var(--transition);
}
.footer-contact a:hover{
  color:#fff;
  border-color:#fff;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:24px;
  font-size:13px;
  color:rgba(255,255,255,.4);
}
.footer-bottom a{
  color:rgba(255,255,255,.6);
}
.footer-bottom a:hover{
  color:#fff;
}
@media(max-width:1024px){
  :root{
    --space-section:82px;
  }
  .header-inner{
    width:calc(100% - 32px);
    gap:10px;
  }
  .nav-cta{
    display:none;
  }
  .advantage-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .hero-grid{
    grid-template-columns:1.1fr .8fr;
    gap:30px;
  }
  .hero-meta{
    grid-template-columns:repeat(3,1fr);
  }
  .process-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .gear-grid,
  .budget-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .method-panel{
    grid-template-columns:1fr;
    gap:40px;
  }
}
@media(max-width:860px){
  .hero .container{
    padding-block:76px 72px;
  }
  .hero-grid{
    grid-template-columns:1fr;
  }
  .hero-visual{
    max-width:520px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
  }
  .footer-brand{
    grid-column:1/-1;
  }
  .scene-grid{
    grid-template-columns:repeat(2,1fr);
  }
  .cta-box{
    padding:40px 26px;
    border-radius:26px;
  }
  .cta-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
}
@media(max-width:640px){
  :root{
    --space-section:70px;
  }
  .brand-logo{
    font-size:19px;
  }
  .header-inner{
    flex-wrap:wrap;
    padding:10px 12px;
    width:calc(100% - 20px);
    top:10px;
    border-radius:18px;
  }
  .brand-logo{
    width:calc(100% - 18px);
  }
  .nav-panel{
    order:3;
    width:100%;
    flex:none;
    margin-top:4px;
    gap:2px;
  }
  .nav-link{
    padding:8px 10px;
    font-size:13.5px;
  }
  .advantage-grid,
  .scene-grid,
  .gear-grid,
  .budget-grid{
    grid-template-columns:1fr;
  }
  .method-section,
  .process-wrap{
    border-radius:24px;
    width:calc(100% - 12px);
    margin-inline:auto;
  }
  .section-title{
    font-size:30px;
  }
  .hero h1{
    font-size:38px;
  }
  .hero-meta{
    grid-template-columns:1fr 1fr;
  }
  .hero-visual-main img{
    aspect-ratio:4/3.4;
  }
  .hero-float-card{
    right:2px;
    bottom:-18px;
  }
  .hero-float-tag{
    left:6px;
  }
  .process-grid{
    grid-template-columns:1fr;
  }
  .cta-form-card .btn{
    width:100%;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:center;
    text-align:center;
  }
}
@media(max-width:480px){
  .container{
    width:calc(100% - 22px);
  }
  .hero-meta-item{
    padding:10px 12px;
  }
  .hero-meta-item strong{
    font-size:20px;
  }
  .nav-panel{
    justify-content:flex-start;
  }
  .hero-actions .btn{
    width:100%;
  }
  .faq-item summary{
    font-size:15.5px;
    padding:18px 16px;
  }
  .cta-list li{
    font-size:13.5px;
  }
}

/* roulang page: category2 */
:root {
  --page-bg: #f5f2ec;
  --surface: #ffffff;
  --surface-soft: #faf8f4;
  --ink: #16130f;
  --muted: #6b655c;
  --line: #e4dfd6;
  --line-strong: #d3ccc0;
  --red: #e6452a;
  --red-deep: #b93620;
  --red-soft: #fdeae4;
  --dark: #17130e;
  --dark-card: #211b15;
  --dark-line: rgba(255,255,255,.13);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 4px 12px rgba(17,14,10,.05);
  --shadow-md: 0 16px 40px rgba(17,14,10,.09);
  --container: 1200px;
  --font: "PingFang SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); color: var(--ink); background: var(--page-bg); line-height: 1.75; -webkit-font-smoothing: antialiased; }
a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
button, input, summary { font: inherit; color: inherit; }
ul, ol { list-style: none; }
.container { width: 100%; max-width: var(--container); margin-left: auto; margin-right: auto; padding-left: 24px; padding-right: 24px; }
.icon-arrow { display: inline-block; margin-left: 6px; transition: transform .25s ease; }
a:hover .icon-arrow { transform: translate(2px, -2px); }
body { background-image: radial-gradient(circle at 15% 5%, rgba(230,69,42,.05), transparent 28%), radial-gradient(circle at 90% 45%, rgba(230,69,42,.04), transparent 30%); }
.header-inner { display: flex; align-items: center; gap: 18px; background: rgba(255,255,255,.94); box-shadow: var(--shadow-md); border: 1px solid rgba(255,255,255,.85); border-radius: var(--radius-lg); margin-top: 18px; padding: 12px 18px; position: relative; z-index: 20; }
.brand-logo { display: inline-flex; align-items: center; gap: 10px; font-weight: 900; font-size: 1.3rem; letter-spacing: .02em; white-space: nowrap; color: var(--ink); }
.brand-logo::before { content: ""; width: 12px; height: 12px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 5px var(--red-soft); }
.nav-panel { flex: 1; display: flex; align-items: center; gap: 8px; }
.nav-link { display: inline-flex; align-items: center; min-height: 40px; padding: 8px 16px; border-radius: 999px; font-weight: 600; font-size: .95rem; color: var(--muted); border: 1px solid transparent; white-space: nowrap; transition: background .2s ease, color .2s ease, border-color .2s ease; }
.nav-link:hover { background: #f4f0e8; color: var(--ink); border-color: var(--line); }
.nav-link.active { background: var(--red); border-color: var(--red); color: #ffffff; }
.nav-cta { display: inline-flex; align-items: center; justify-content: center; background: var(--ink); color: #ffffff; min-height: 44px; border-radius: 999px; padding: 0 18px; font-weight: 700; font-size: .94rem; letter-spacing: .01em; transition: background .2s ease, transform .2s ease; white-space: nowrap; }
.nav-cta:hover { background: var(--red); transform: translateY(-1px); }
.nav-cta:focus-visible, .nav-link:focus-visible, .brand-logo:focus-visible, .btn:focus-visible, details summary:focus-visible { outline: 3px solid rgba(230,69,42,.38); outline-offset: 3px; border-radius: 999px; }

.hero { position: relative; color: #ffffff; padding: 84px 0 42px; border-radius: 0 0 32px 32px; background: linear-gradient(105deg, rgba(18,14,10,.92), rgba(18,14,10,.64) 55%, rgba(15,12,9,.38)), url('/assets/images/backpic/back-2.png') center / cover no-repeat; overflow: hidden; }
.hero::after { content: ""; position: absolute; bottom: 0; left: 0; right: 0; height: 70px; background: linear-gradient(transparent, rgba(245,242,236,.96)); pointer-events: none; }
.hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr; gap: 40px; align-items: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; font-weight: 700; letter-spacing: .08em; font-size: .8rem; text-transform: uppercase; color: rgba(255,255,255,.78); background: rgba(255,255,255,.09); border: 1px solid rgba(255,255,255,.15); padding: 6px 13px; border-radius: 999px; margin-bottom: 20px; }
.pulse-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); box-shadow: 0 0 0 5px rgba(230,69,42,.25); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100% { box-shadow: 0 0 0 4px rgba(230,69,42,.2); } 50% { box-shadow: 0 0 0 9px rgba(230,69,42,.04); } }
.hero h1 { font-size: clamp(2.1rem, 4.4vw, 3.4rem); line-height: 1.22; letter-spacing: -.02em; font-weight: 900; margin-bottom: 18px; }
.hero h1 span { color: #ff8f72; }
.hero-lead { max-width: 620px; font-size: 1.08rem; color: rgba(255,255,255,.86); margin-bottom: 28px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 22px; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; border-radius: 999px; padding: 0 22px; font-weight: 700; font-size: .96rem; border: 1px solid transparent; transition: transform .2s ease, background .2s ease, border-color .2s ease, color .2s ease; cursor: pointer; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--red); border-color: var(--red); color: #fff; box-shadow: 0 10px 22px rgba(230,69,42,.23); }
.btn-primary:hover { background: var(--red-deep); }
.btn-outline { background: transparent; border-color: rgba(255,255,255,.55); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.hero-note { font-size: .92rem; color: rgba(255,255,255,.55); }
.hero-note i { color: #ff8f72; margin-right: 5px; }

.today-card { position: relative; z-index: 2; background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.16); backdrop-filter: blur(16px); border-radius: 26px; padding: 24px; box-shadow: 0 28px 60px rgba(0,0,0,.22); color: #fff; }
.today-head { display: flex; align-items: center; gap: 10px; font-size: .82rem; font-weight: 800; letter-spacing: .08em; color: rgba(255,255,255,.68); margin-bottom: 16px; }
.today-head i { color: #ff8f72; font-size: 1.14rem; }
.today-title { font-size: 1.35rem; font-weight: 800; line-height: 1.4; margin-bottom: 14px; }
.today-list { display: grid; gap: 9px; margin-bottom: 16px; }
.today-list li { display: flex; gap: 8px; align-items: flex-start; color: rgba(255,255,255,.8); font-size: .94rem; }
.today-list i { color: #ff8f72; margin-top: 5px; font-size: .72rem; }
.today-speed { display: inline-block; background: rgba(255,255,255,.14); border: 1px solid rgba(255,255,255,.2); color: #fff; padding: 5px 12px; border-radius: 999px; font-size: .84rem; font-weight: 600; }

.metric-strip { position: relative; z-index: 3; margin-top: 52px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.metric-item { background: #ffffff; border: 1px solid rgba(255,255,255,.7); box-shadow: var(--shadow-md); border-radius: 18px; padding: 16px 18px; display: flex; align-items: center; gap: 13px; transition: transform .2s ease, box-shadow .2s ease; }
.metric-item:hover { transform: translateY(-3px); box-shadow: 0 20px 34px rgba(13,10,7,.12); }
.metric-icon { width: 42px; height: 42px; flex: 0 0 42px; border-radius: 13px; background: var(--red-soft); color: var(--red); display: inline-flex; align-items: center; justify-content: center; font-size: 1.08rem; }
.metric-item strong { display: block; font-size: 1.3rem; line-height: 1.2; color: var(--ink); }
.metric-item span { font-size: .84rem; color: var(--muted); white-space: nowrap; }

.section { padding: 86px 0; }
.section-head { max-width: 780px; margin-bottom: 46px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-kicker { display: inline-flex; align-items: center; gap: 6px; color: var(--red); font-weight: 800; letter-spacing: .08em; font-size: .8rem; margin-bottom: 12px; text-transform: uppercase; }
.section-kicker::before { content: ""; width: 22px; height: 3px; background: var(--red); border-radius: 3px; }
.section-head.center .section-kicker::after { content: ""; width: 22px; height: 3px; background: var(--red); border-radius: 3px; }
.section-title { font-size: clamp(1.8rem, 3vw, 2.6rem); line-height: 1.3; letter-spacing: -.01em; font-weight: 900; color: var(--ink); }
.section-desc { color: var(--muted); margin-top: 12px; font-size: 1.03rem; }

.method-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.method-card { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; padding: 26px 22px; box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease; position: relative; overflow: hidden; }
.method-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-md); border-color: var(--line-strong); }
.method-icon { width: 50px; height: 50px; border-radius: 15px; display: inline-flex; align-items: center; justify-content: center; font-size: 1.4rem; background: var(--red); color: #fff; margin-bottom: 24px; }
.method-card h3 { font-size: 1.12rem; margin-bottom: 9px; font-weight: 800; }
.method-card p { color: var(--muted); font-size: .93rem; }
.method-tag { position: absolute; top: 16px; right: 16px; background: var(--page-bg); color: var(--muted); padding: 3px 9px; border-radius: 999px; font-size: .72rem; font-weight: 700; }

.audience-section { background: #ece5d9; }
.audience-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.person-card { background: var(--surface); border-radius: 24px; padding: 30px 26px; border: 1px solid var(--line); box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease; }
.person-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.person-card .role { display: inline-flex; font-size: .76rem; font-weight: 800; letter-spacing: .06em; background: var(--ink); color: #fff; padding: 4px 12px; border-radius: 999px; margin-bottom: 20px; }
.person-card:nth-child(2) .role { background: var(--red); }
.person-card h3 { font-size: 1.25rem; margin-bottom: 11px; font-weight: 800; }
.person-card p { color: var(--muted); font-size: .95rem; margin-bottom: 17px; }
.person-points { border-top: 1px solid var(--line); padding-top: 16px; display: grid; gap: 8px; }
.person-points li { display: flex; gap: 9px; font-size: .9rem; color: var(--ink); align-items: flex-start; }
.person-points i { color: var(--red); margin-top: 4px; font-size: .75rem; }

.process-section { background: var(--dark); color: #fff; border-radius: 0; }
.process-section .section-title { color: #fff; }
.process-section .section-desc { color: rgba(255,255,255,.66); }
.process-header { display: flex; justify-content: space-between; align-items: flex-end; gap: 30px; margin-bottom: 40px; }
.process-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255,255,255,.08); border: 1px solid var(--dark-line); padding: 8px 15px; border-radius: 999px; white-space: nowrap; color: rgba(255,255,255,.7); font-size: .86rem; }
.process-badge i { color: #ff8f72; }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; counter-reset: steps; }
.step-card { background: rgba(255,255,255,.06); border: 1px solid var(--dark-line); border-radius: 22px; padding: 25px 20px; position: relative; transition: background .25s ease, border-color .25s ease, transform .25s ease; }
.step-card:hover { background: rgba(255,255,255,.1); border-color: rgba(255,255,255,.25); transform: translateY(-4px); }
.step-num { font-size: 1.9rem; font-weight: 900; color: #ff8f72; line-height: 1; margin-bottom: 13px; display: block; }
.step-time { display: inline-block; background: rgba(255,255,255,.12); color: #fff; padding: 2px 9px; border-radius: 999px; font-size: .72rem; margin-bottom: 12px; letter-spacing: .05em; }
.step-card h3 { font-size: 1.12rem; color: #fff; margin-bottom: 9px; }
.step-card p { color: rgba(255,255,255,.65); font-size: .9rem; }

.course-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.course-card { background: var(--surface); border: 1px solid var(--line); border-radius: 22px; overflow: hidden; box-shadow: var(--shadow-sm); transition: transform .25s ease, box-shadow .25s ease; display: flex; flex-direction: column; }
.course-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-md); }
.course-thumb { aspect-ratio: 16 / 9; overflow: hidden; background: #e7e1d7; position: relative; }
.course-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .6s ease; }
.course-card:hover .course-thumb img { transform: scale(1.06); }
.course-thumb span { position: absolute; left: 12px; top: 12px; background: rgba(20,18,16,.76); color: #fff; padding: 3px 10px; border-radius: 999px; font-size: .72rem; font-weight: 700; }
.course-copy { padding: 20px 18px 22px; display: flex; flex-direction: column; flex: 1; }
.course-copy h3 { font-size: 1.1rem; font-weight: 800; margin-bottom: 8px; }
.course-copy p { color: var(--muted); font-size: .9rem; flex: 1; }
.course-link { display: inline-flex; align-items: center; gap: 6px; margin-top: 18px; color: var(--red); font-weight: 700; font-size: .9rem; transition: gap .2s ease; }
.course-link:hover { gap: 10px; color: var(--red-deep); }

.change-section { background: transparent; }
.change-band { background: linear-gradient(120deg, #1c1610, #261a12); border-radius: 32px; padding: 48px; color: #fff; box-shadow: 0 26px 70px rgba(11,8,5,.16); position: relative; overflow: hidden; }
.change-band::before { content: ""; position: absolute; width: 210px; height: 210px; border-radius: 50%; background: rgba(230,69,42,.14); top: -80px; right: -60px; }
.change-band::after { content: ""; width: 40px; height: 4px; background: var(--red); border-radius: 3px; display: block; margin-bottom: 20px; }
.change-band .section-kicker { color: #ff8f72; }
.change-band .section-title { color: #fff; }
.change-band .section-desc { color: rgba(255,255,255,.68); }
.change-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; margin-top: 36px; }
.change-step { border-top: 1px solid rgba(255,255,255,.13); padding: 18px 18px 0 0; }
.change-step + .change-step { margin-left: 26px; border-top-color: rgba(255,255,255,.13); border-left: 1px solid rgba(255,255,255,.13); padding-left: 26px; }
.change-week { display: flex; align-items: center; gap: 8px; color: #ff8f72; font-weight: 800; font-size: .8rem; letter-spacing: .05em; margin-bottom: 10px; }
.change-week i { font-size: .84rem; }
.change-step h3 { font-size: 1.05rem; margin-bottom: 8px; color: #fff; }
.change-step p { color: rgba(255,255,255,.6); font-size: .9rem; }

.faq-list { max-width: 850px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow-sm); transition: border-color .2s ease, box-shadow .2s ease; }
.faq-item[open] { box-shadow: var(--shadow-md); border-color: var(--line-strong); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; cursor: pointer; list-style: none; padding: 21px 24px; font-weight: 800; color: var(--ink); font-size: 1rem; border-radius: 18px; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { font-style: normal; color: var(--red); transition: transform .3s ease; font-size: .8rem; flex: 0 0 auto; }
.faq-item[open] summary i { transform: rotate(135deg); }
.faq-answer { max-width: 100%; }
.faq-answer p { padding: 0 24px 22px; color: var(--muted); font-size: .96rem; }
.faq-answer p b { color: var(--ink); font-weight: 700; }

.cta-band { position: relative; max-width: var(--container); margin: 0 auto 70px; border-radius: 34px; padding: 86px 30px; text-align: center; color: #fff; background: linear-gradient(100deg, rgba(15,12,9,.85), rgba(38,20,14,.72)), url('/assets/images/backpic/back-3.webp') center / cover no-repeat; overflow: hidden; }
.cta-band::after { content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 4px; background: var(--red); }
.cta-band h2 { font-size: clamp(1.9rem, 3.5vw, 2.75rem); font-weight: 900; letter-spacing: -.01em; margin-bottom: 14px; }
.cta-band p { max-width: 640px; margin: 0 auto 26px; color: rgba(255,255,255,.8); font-size: 1.06rem; }
.cta-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.cta-line { margin-top: 24px; font-size: .88rem; color: rgba(255,255,255,.6); }

.footer { background: #171310; color: #f4efe6; padding: 72px 0 34px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.45fr .8fr 1.25fr; gap: 50px; }
.footer-brand .brand-logo { color: #fff; }
.footer-brand p { margin-top: 18px; max-width: 420px; color: rgba(255,255,255,.58); font-size: .96rem; }
.footer h4 { color: #fff; font-size: 1rem; font-weight: 800; margin-bottom: 14px; }
.footer-links li + li { margin-top: 8px; }
.footer-links a { color: rgba(255,255,255,.65); font-size: .93rem; transition: color .2s ease, padding-left .2s ease; }
.footer-links a:hover { color: #fff; padding-left: 5px; }
.footer-contact { color: rgba(255,255,255,.6); font-size: .93rem; line-height: 2; }
.footer-contact a { color: #ff8f72; }
.footer-contact a:hover { color: #fff; }
.footer-bottom { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; border-top: 1px solid rgba(255,255,255,.09); margin-top: 46px; padding-top: 26px; color: rgba(255,255,255,.42); font-size: .86rem; }

@media (max-width: 1080px) {
  .method-grid { grid-template-columns: repeat(2, 1fr); }
  .course-grid { grid-template-columns: repeat(2, 1fr); }
  .audience-grid { grid-template-columns: repeat(3, 1fr); }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 960px) {
  .hero-inner { grid-template-columns: 1fr; }
  .today-card { max-width: 520px; }
  .metric-strip { grid-template-columns: repeat(2, 1fr); margin-top: 34px; }
  .header-inner { flex-wrap: wrap; }
  .nav-panel { order: 3; width: 100%; overflow-x: auto; padding-bottom: 4px; }
  .nav-cta { margin-left: auto; order: 2; }
  .nav-link { flex: 0 0 auto; }
  .audience-grid { grid-template-columns: 1fr; }
  .change-grid { grid-template-columns: 1fr; }
  .change-step + .change-step { margin-left: 0; margin-top: 18px; border-left: 0; padding-left: 0; }
  .process-header { flex-direction: column; align-items: flex-start; gap: 14px; }
}
@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .header-inner { margin-top: 12px; padding: 12px 16px; }
  .brand-logo { font-size: 1.18rem; }
  .process-grid { grid-template-columns: 1fr; }
  .method-grid, .course-grid, .metric-strip, .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .cta-band { border-radius: 26px; padding: 64px 22px; }
  .cta-actions .btn { width: 100%; }
  .change-band { padding: 34px 22px; border-radius: 22px; }
  .faq-answer { text-align: left; }
}
@media (max-width: 520px) {
  .container { padding-left: 18px; padding-right: 18px; }
  .hero { padding: 62px 0 30px; }
  .hero h1 { font-size: 2rem; }
  .metric-strip { grid-template-columns: 1fr; }
  .metric-item { padding: 13px 15px; }
  .nav-cta { font-size: 0; }
  .nav-cta::before { content: "今日任务"; font-size: .86rem; }
  .nav-cta .icon-arrow { display: none; }
}

/* roulang page: category3 */
:root {
  --primary: #4f46e5;
  --primary-strong: #4338ca;
  --violet: #8b5cf6;
  --accent: #ef4444;
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-tint: #eef0fb;
  --ink: #13132b;
  --muted: #5c6172;
  --line: #e5e7f1;
  --dark-panel: #14112b;
  --radius-lg: 32px;
  --radius: 20px;
  --radius-sm: 14px;
  --shadow-sm: 0 6px 16px rgba(20, 17, 43, 0.06);
  --shadow-md: 0 14px 28px rgba(20, 17, 43, 0.08);
  --shadow-lg: 0 26px 70px rgba(20, 17, 43, 0.16);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, sans-serif;
  --section-space: clamp(68px, 8vw, 118px);
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
h1, h2, h3, h4, p, ul, ol { margin: 0; }
a { color: inherit; text-decoration: none; }
button, input { font-family: inherit; }

.container {
  width: min(1240px, calc(100% - 40px));
  margin-left: auto;
  margin-right: auto;
}

.section { padding-block: var(--section-space); }
.section-tint { background: #f0f1fa; }

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 22px;
  padding: 10px 12px 10px 22px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--line);
  border-radius: 80px;
  box-shadow: 0 10px 40px rgba(20, 17, 43, 0.07);
  position: relative;
  z-index: 20;
}
.brand-logo {
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.03em;
  color: var(--ink);
  white-space: nowrap;
  background: linear-gradient(120deg, var(--primary), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand-logo:hover { opacity: 0.86; }
.nav-panel {
  display: flex;
  align-items: center;
  gap: 4px;
  background: #eef0f9;
  border-radius: 999px;
  padding: 6px;
  overflow-x: auto;
  scrollbar-width: none;
  flex: 1;
  justify-content: center;
}
.nav-panel::-webkit-scrollbar { display: none; }
.nav-link {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  padding: 9px 15px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  color: #5a5f75;
  transition: all 0.2s ease;
}
.nav-link:hover {
  background: #fff;
  color: var(--ink);
  box-shadow: 0 6px 12px rgba(20, 17, 43, 0.08);
}
.nav-link.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 22px rgba(79, 70, 229, 0.32);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 999px;
  background: var(--ink);
  color: #fff;
  font-weight: 700;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  box-shadow: 0 8px 18px rgba(19, 19, 43, 0.2);
}
.nav-cta:hover {
  background: var(--primary);
  transform: translateY(-2px);
}
.icon-arrow { font-size: 1.05rem; line-height: 1; }

.hero-cat {
  position: relative;
  border-radius: var(--radius-lg);
  color: #fff;
  padding: clamp(56px, 8vw, 104px) clamp(24px, 6vw, 72px);
  overflow: hidden;
  margin-top: 24px;
  background:
    radial-gradient(circle at 85% 14%, rgba(139, 92, 246, 0.58), transparent 34%),
    linear-gradient(116deg, rgba(14, 11, 43, 0.96) 0%, rgba(49, 46, 129, 0.84) 52%, rgba(15, 18, 42, 0.92) 100%),
    url("/assets/images/backpic/back-1.png") center / cover no-repeat;
}
.hero-cat::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(14, 11, 43, 0.62) 10%, rgba(79, 70, 229, 0.12) 100%);
}
.hero-cat > * {
  position: relative;
  z-index: 2;
}
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 9px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(8px);
  margin-bottom: 26px;
}
.hero-kicker .dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.25);
}
.hero-cat h1 {
  font-size: clamp(38px, 6.2vw, 72px);
  line-height: 1.08;
  letter-spacing: -0.04em;
  max-width: 900px;
  font-weight: 900;
  margin-bottom: 22px;
}
.hero-sub {
  max-width: 680px;
  color: rgba(255, 255, 255, 0.86);
  font-size: clamp(1rem, 1.4vw, 1.16rem);
  line-height: 1.8;
  margin-bottom: 34px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 50px;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 800;
  font-size: 1rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.22s ease;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 14px 24px rgba(79, 70, 229, 0.34);
}
.btn-primary:hover {
  background: var(--primary-strong);
  transform: translateY(-2px);
  box-shadow: 0 18px 36px rgba(79, 70, 229, 0.4);
}
.btn-light {
  background: #fff;
  color: var(--ink);
}
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 16px 30px rgba(0, 0, 0, 0.16); }
.btn-ghost {
  border-color: rgba(255, 255, 255, 0.6);
  color: #fff;
  background: transparent;
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
}
.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  margin-top: clamp(42px, 6vw, 74px);
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  padding-top: 26px;
  max-width: 820px;
}
.hero-stat strong {
  font-size: clamp(24px, 3.5vw, 42px);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.1;
}
.hero-stat span {
  display: block;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.94rem;
  margin-top: 5px;
}

.section-head {
  max-width: 760px;
  margin-bottom: 44px;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-size: 0.84rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  margin-bottom: 12px;
}
.eyebrow::before {
  content: "";
  width: 20px;
  height: 3px;
  border-radius: 8px;
  background: var(--accent);
}
.section-head h2 {
  font-size: clamp(30px, 4vw, 46px);
  line-height: 1.15;
  letter-spacing: -0.04em;
  font-weight: 900;
  margin-bottom: 18px;
}
.section-head p {
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
}
.section-head.left { margin-left: 0; }

.module-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.module-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: all 0.22s ease;
  box-shadow: var(--shadow-sm);
}
.module-card:hover {
  transform: translateY(-6px);
  border-color: #d1d3f7;
  box-shadow: var(--shadow-md);
}
.module-num {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 15px;
  font-weight: 900;
  font-size: 1.05rem;
  margin-bottom: 22px;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--violet));
  box-shadow: 0 8px 18px rgba(79, 70, 229, 0.26);
}
.module-card h3 {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.module-card p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}
.tag {
  display: inline-block;
  margin-top: 18px;
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  background: #eef0fe;
}
.tag.hot { color: var(--accent); background: #fff0ef; }

.split-layout {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: clamp(28px, 5vw, 70px);
  align-items: center;
}
.method-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.method-media img {
  width: 100%;
  height: 100%;
  min-height: 420px;
  object-fit: cover;
}
.method-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(14, 11, 43, 0.02), rgba(14, 11, 43, 0.28));
}
.method-badge {
  position: absolute;
  left: 24px;
  bottom: 24px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 18px;
  background: rgba(255, 255, 255, 0.92);
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--ink);
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.14);
}
.method-badge .lead-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
}
.step-list {
  list-style: none;
  margin-top: 28px;
}
.step-list li {
  position: relative;
  padding-left: 34px;
  padding-bottom: 30px;
}
.step-list li::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 9px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 5px rgba(79, 70, 229, 0.14);
  z-index: 2;
}
.step-list li:not(:last-child)::after {
  content: "";
  position: absolute;
  left: 8px;
  top: 24px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(180deg, var(--line), rgba(229, 231, 241, 0.2));
}
.step-list .step-label {
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--primary);
  text-transform: uppercase;
  display: block;
  margin-bottom: 4px;
}
.step-list h3 {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 8px;
}
.step-list p {
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.75;
}

.persona-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.persona-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 22px;
  transition: all 0.2s ease;
  border-top: 4px solid transparent;
}
.persona-card:hover {
  border-top-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}
.persona-ico {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 13px;
  font-size: 1.2rem;
  font-weight: 900;
  background: var(--surface-tint);
  color: var(--primary);
  margin-bottom: 18px;
}
.persona-card h3 {
  font-size: 1.08rem;
  font-weight: 800;
  margin-bottom: 10px;
}
.persona-card p {
  color: var(--muted);
  font-size: 0.93rem;
  line-height: 1.7;
}

.band-commit {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(118deg, rgba(20, 17, 43, 0.94) 0%, rgba(79, 70, 229, 0.72) 58%, rgba(20, 17, 43, 0.8) 100%),
    url("/assets/images/backpic/back-3.webp") center / cover no-repeat;
  color: #fff;
  padding: clamp(46px, 7vw, 86px);
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
  box-shadow: var(--shadow-lg);
}
.band-commit h2 {
  font-size: clamp(28px, 3.8vw, 48px);
  font-weight: 900;
  letter-spacing: -0.04em;
  line-height: 1.2;
  margin-bottom: 18px;
}
.band-commit p.body {
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.85;
  max-width: 580px;
  margin-bottom: 28px;
}
.band-commit .btn-light { box-shadow: 0 14px 26px rgba(0, 0, 0, 0.16); }
.stat-board {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(8px);
  border-radius: var(--radius);
  padding: 30px 18px;
  gap: 10px;
  text-align: center;
}
.stat-board .up {
  font-size: clamp(24px, 3vw, 40px);
  font-weight: 900;
  letter-spacing: -0.02em;
}
.stat-board .desc {
  display: block;
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.split-note {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 52px;
  align-items: center;
}
.note-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(26px, 5vw, 52px);
  box-shadow: var(--shadow-sm);
}
.note-panel .quote-mark {
  color: var(--primary);
  font-size: 2.6rem;
  line-height: 1;
  font-family: Georgia, serif;
  display: block;
  margin-bottom: 12px;
}
.note-panel p.lead {
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  font-weight: 800;
  line-height: 1.55;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
.note-panel .meta {
  color: var(--muted);
  font-size: 0.95rem;
}

.faq-wrap {
  max-width: 860px;
  margin-inline: auto;
}
.faq-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 18px;
  margin-bottom: 14px;
  overflow: hidden;
  transition: box-shadow 0.2s ease;
}
.faq-card[open] { box-shadow: var(--shadow-md); }
.faq-card summary {
  cursor: pointer;
  list-style: none;
  padding: 22px 26px;
  font-weight: 800;
  font-size: 1.06rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-card summary::-webkit-details-marker { display: none; }
.faq-card summary::after {
  content: "+";
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-tint);
  color: var(--primary);
  font-weight: 900;
  font-size: 1.2rem;
  transition: transform 0.2s ease;
}
.faq-card[open] summary::after { transform: rotate(45deg); background: var(--primary); color: #fff; }
.faq-answer { padding: 0 26px 24px; color: var(--muted); border-top: 1px solid var(--line); }
.faq-answer p { padding-top: 16px; line-height: 1.85; font-size: 1rem; }

.cta-panel {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-lg);
  background:
    linear-gradient(108deg, rgba(23, 18, 56, 0.96) 0%, rgba(79, 70, 229, 0.72) 100%),
    url("/assets/images/coverpic/cover-4.png") center / cover no-repeat;
  color: #fff;
  text-align: center;
  padding: clamp(54px, 8vw, 104px) clamp(24px, 6vw, 70px);
  box-shadow: var(--shadow-lg);
}
.cta-panel h2 {
  max-width: 780px;
  margin-inline: auto;
  font-size: clamp(32px, 5vw, 56px);
  letter-spacing: -0.04em;
  line-height: 1.12;
  font-weight: 900;
}
.cta-panel p {
  max-width: 680px;
  margin: 20px auto 34px;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.08rem;
  line-height: 1.8;
}
.cta-panel .cta-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

.footer {
  background: #11101f;
  color: #c7c8d5;
  margin-top: clamp(60px, 9vw, 120px);
  padding: 66px 0 28px;
  border-radius: 40px 40px 0 0;
}
.footer .container { }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr;
  gap: 38px;
  padding-bottom: 34px;
}
.footer .brand-logo {
  -webkit-text-fill-color: #fff;
  color: #fff;
  font-size: 1.45rem;
  display: inline-block;
}
.footer p { color: rgba(255, 255, 255, 0.68); font-size: 0.95rem; line-height: 1.8; }
.footer-brand p { margin-top: 16px; max-width: 380px; }
.footer h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 800;
  margin-bottom: 16px;
}
.footer-links { list-style: none; padding: 0; display: grid; gap: 10px; }
.footer-links a {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  transition: color 0.2s ease, padding 0.2s ease;
}
.footer-links a:hover { color: #fff; padding-left: 4px; }
.footer-contact {
  line-height: 2;
}
.footer-contact a { color: #d6d2ff; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.88rem;
  flex-wrap: wrap;
}

@media (max-width: 1100px) {
  .module-grid { grid-template-columns: repeat(2, 1fr); }
  .persona-grid { grid-template-columns: repeat(2, 1fr); }
  .band-commit { grid-template-columns: 1fr; }
  .split-note { grid-template-columns: 1fr; }
}

@media (max-width: 820px) {
  .header-inner { flex-wrap: wrap; border-radius: 30px; padding: 12px; }
  .brand-logo { font-size: 1.25rem; padding-inline: 10px; }
  .nav-panel {
    order: 3;
    width: 100%;
    justify-content: flex-start;
    border-radius: 999px;
    padding: 5px;
    scroll-snap-type: x proximity;
  }
  .nav-link { scroll-snap-align: start; padding: 8px 14px; }
  .nav-cta { border-radius: 999px; padding: 10px 16px; }
  .split-layout { grid-template-columns: 1fr; }
  .section-head h2 { font-size: 2rem; }
  .hero-stats { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .container { width: min(1240px, calc(100% - 24px)); }
  .header-inner { align-items: stretch; }
  .brand-logo { font-size: 1.1rem; }
  .nav-cta { display: none; }
  .hero-cat { padding: 40px 22px; border-radius: 24px; }
  .hero-cat h1 { font-size: 2.2rem; }
  .hero-sub { font-size: 1rem; }
  .hero-actions .btn { width: 100%; }
  .hero-stats { grid-template-columns: 1fr; }
  .stat-board { grid-template-columns: 1fr; }
  .module-grid { grid-template-columns: 1fr; }
  .persona-grid { grid-template-columns: 1fr; }
  .cta-panel { padding: 48px 22px; border-radius: 24px; }
  .cta-panel .btn { width: 100%; }
  .footer { padding: 52px 0 24px; border-radius: 26px 26px 0 0; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; }
  .band-commit { padding: 38px 24px; }
  .faq-card summary { padding: 18px; font-size: 0.98rem; }
  .faq-answer { padding: 0 18px 18px; }
  .note-panel { padding: 26px 22px; }
}

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(79, 70, 229, 0.45);
  outline-offset: 3px;
}