/* roulang page: index */
:root {
  --bg-deep: #08111f;
  --bg-body: #0b1526;
  --bg-soft: #0f1f33;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --surface-glass: rgba(13, 24, 40, 0.72);
  --line: rgba(255, 255, 255, 0.12);
  --line-strong: rgba(255, 255, 255, 0.2);
  --text: #eaf3f6;
  --muted: #b4c3cf;
  --weak: #93a6b5;
  --primary: #2fcbcb;
  --primary-bright: #6ef0f0;
  --primary-glow: rgba(47, 203, 203, 0.32);
  --amber: #e5b868;
  --amber-soft: rgba(229, 184, 104, 0.16);
  --danger: #f2c6b0;
  --radius-xl: 24px;
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --font-sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", "Segoe UI", Roboto, Arial, sans-serif;
  --font-num: Inter, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --shadow-card: 0 18px 50px rgba(0, 0, 0, 0.22), 0 2px 10px rgba(0, 0, 0, 0.18);
  --shadow-float: 0 30px 70px rgba(0, 0, 0, 0.32);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
  --space-section: 96px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 10%, rgba(47, 203, 203, 0.1), transparent 28%),
    radial-gradient(circle at 90% 0%, rgba(229, 184, 104, 0.05), transparent 22%),
    linear-gradient(160deg, #0b1526 0%, #08111f 60%, #060c16 100%);
  background-color: var(--bg-body);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.75;
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

body.nav-open {
  overflow: hidden;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

a:hover {
  color: var(--primary-bright);
}

button {
  font-family: inherit;
  cursor: pointer;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding: 92px 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 44px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary));
}

h1,
h2,
h3,
h4 {
  margin: 0;
  color: var(--text);
  font-weight: 700;
  line-height: 1.25;
  font-family: var(--font-sans);
}

h1 {
  font-size: clamp(2.4rem, 4.4vw, 3.9rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.6rem, 2.6vw, 2.3rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.2rem;
}

p {
  margin: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 15px;
  line-height: 1;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease), color 0.25s var(--ease);
}

.btn-lg {
  min-height: 52px;
  padding: 0 28px;
  font-size: 16px;
}

.btn-sm {
  min-height: 40px;
  padding: 0 16px;
  font-size: 14px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #1cb8c2);
  color: #04121a;
  border-color: rgba(255, 255, 255, 0.32);
  box-shadow: 0 8px 28px var(--primary-glow), inset 0 1px 0 rgba(255, 255, 255, 0.45);
}

.btn-primary:hover {
  transform: translateY(-1px);
  color: #04121a;
  background: linear-gradient(135deg, var(--primary-bright), var(--primary));
  box-shadow: 0 14px 34px var(--primary-glow), inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(6px);
}

.btn-ghost:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(255, 255, 255, 0.36);
  transform: translateY(-1px);
}

.btn:focus-visible,
.nav-toggle:focus-visible,
.nav-link:focus-visible,
.faq-trigger:focus-visible,
.form-input:focus-visible,
.news-link:focus-visible,
.privacy-link:focus-visible,
.close-button:focus-visible,
.footer-nav a:focus-visible {
  outline: 2px solid var(--primary-bright);
  outline-offset: 3px;
}

.site-header {
  position: sticky;
  top: 14px;
  z-index: 200;
  padding: 0 14px;
}

.header-shell {
  max-width: 1280px;
  margin: 0 auto;
  min-height: 72px;
  padding: 10px 16px 10px 20px;
  background: rgba(9, 18, 31, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 20px;
  box-shadow: 0 14px 40px rgba(0, 0, 0, 0.28), inset 0 1px 0 rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(18px) saturate(120%);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  white-space: nowrap;
}

.brand-logo:hover {
  color: var(--text);
}

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  height: 28px;
  padding: 0 7px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--amber), #c99650);
  color: #08121f;
  font-size: 13px;
  font-weight: 900;
  letter-spacing: 0.02em;
  box-shadow: 0 0 18px rgba(229, 184, 104, 0.3);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 16px;
  border-radius: 12px;
  color: var(--muted);
  font-weight: 500;
  font-size: 15px;
  gap: 8px;
  border: 1px solid transparent;
  background: transparent;
  transition: all 0.25s var(--ease);
}

.nav-link .nav-hash {
  display: inline-flex;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.nav-link:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.nav-link.active {
  color: var(--text);
  background: rgba(47, 203, 203, 0.1);
  border-color: rgba(47, 203, 203, 0.22);
  box-shadow: inset 0 0 0 1px rgba(47, 203, 203, 0.05), 0 6px 18px rgba(47, 203, 203, 0.08);
}

.nav-link.active .nav-hash {
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  position: relative;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  border-radius: 4px;
  margin: 3px auto;
  transition: transform 0.3s var(--ease);
}

body.nav-open .nav-toggle span:nth-child(1) {
  transform: translateY(5px) rotate(45deg);
}

body.nav-open .nav-toggle span:nth-child(2) {
  opacity: 0;
}

body.nav-open .nav-toggle span:nth-child(3) {
  transform: translateY(-5px) rotate(-45deg);
}

.hero {
  position: relative;
  padding: 76px 0 70px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.75;
  z-index: 0;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, rgba(7, 14, 25, 0.96) 10%, rgba(10, 20, 34, 0.82) 45%, rgba(9, 22, 38, 0.72)),
    radial-gradient(circle at 80% 15%, rgba(47, 203, 203, 0.1), transparent 32%);
  backdrop-filter: blur(1px);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  align-items: center;
  gap: 40px;
}

.hero-copy {
  max-width: 800px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 7px 14px;
  border-radius: 999px;
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 22px;
}

.hero-badge .beam {
  width: 7px;
  height: 7px;
  background: var(--primary);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--primary);
}

.hero h1 {
  margin-bottom: 22px;
}

.hero-lead {
  font-size: 17px;
  line-height: 1.8;
  color: var(--muted);
  max-width: 620px;
  margin-bottom: 32px;
}

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

.hero-quick {
  background: rgba(10, 20, 34, 0.68);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: var(--radius-lg);
  padding: 24px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-card), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.hero-quick h2 {
  font-size: 20px;
  margin-bottom: 16px;
}

.hero-quick-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.hero-quick-list li {
  display: flex;
  gap: 12px;
  padding: 13px 0;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.hero-quick-list li strong {
  color: var(--text);
  font-weight: 600;
}

.hero-quick-list .step-no {
  display: inline-flex;
  flex: 0 0 24px;
  align-items: center;
  justify-content: center;
  height: 24px;
  border-radius: 8px;
  background: rgba(47, 203, 203, 0.16);
  color: var(--primary);
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 800;
}

.hero-scroll-note {
  position: relative;
  z-index: 1;
  margin-top: 42px;
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--weak);
  font-size: 13px;
}

.hero-scroll-note::before {
  content: "";
  width: 44px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--primary));
}

.problem-section {
  padding-top: 30px;
}

.problems-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) 1.08fr;
  gap: 60px;
  align-items: start;
}

.problem-head .eyebrow {
  margin-bottom: 18px;
}

.problem-head h2 {
  margin-bottom: 22px;
}

.problem-head p {
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
}

.problem-cards {
  display: grid;
  gap: 18px;
}

.problem-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  position: relative;
  backdrop-filter: blur(10px);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease), transform 0.3s var(--ease);
}

.problem-card::before {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.24), transparent);
}

.problem-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.07);
  transform: translateY(-3px);
}

.problem-card-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.problem-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--amber-soft);
  color: var(--amber);
  font-size: 18px;
  font-weight: 800;
  flex: 0 0 auto;
}

.problem-card h3 {
  font-size: 17px;
}

.problem-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.75;
}

.solution-section {
  background: transparent;
  position: relative;
}

.solutions-panel {
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.solution-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.solution-card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 24px;
  min-height: 220px;
  backdrop-filter: blur(8px);
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease), background 0.3s var(--ease);
}

.solution-card:hover {
  transform: translateY(-4px);
  border-color: rgba(47, 203, 203, 0.3);
  background: rgba(255, 255, 255, 0.075);
}

.solution-card.featured {
  grid-column: span 2;
  display: grid;
  grid-template-columns: 180px minmax(0, 1fr);
  gap: 22px;
  padding: 0;
  overflow: hidden;
  min-height: 260px;
}

.solution-card.featured .solution-content {
  padding: 24px 26px 24px 0;
}

.solution-media {
  position: relative;
}

.solution-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 260px;
  border-radius: 0;
}

.solution-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent 50%, rgba(8, 16, 29, 0.86) 100%);
}

.solution-index {
  position: absolute;
  right: 12px;
  bottom: 12px;
  z-index: 2;
  font-family: var(--font-num);
  color: rgba(255, 255, 255, 0.7);
  font-size: 34px;
  font-weight: 800;
  letter-spacing: -0.06em;
}

.solution-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(47, 203, 203, 0.12);
  color: var(--primary);
  margin-bottom: 18px;
  border: 1px solid rgba(47, 203, 203, 0.18);
}

.solution-icon svg {
  width: 20px;
  height: 20px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
}

.solution-card h3 {
  font-size: 18px;
  line-height: 1.4;
  margin-bottom: 10px;
}

.solution-card p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
}

.featured .solution-icon {
  width: 46px;
  height: 46px;
  margin-bottom: 16px;
}

.solution-link,
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--primary);
  font-weight: 600;
  font-size: 14px;
  min-height: 32px;
}

.solution-link span,
.text-link span {
  transition: transform 0.3s var(--ease);
}

.solution-link:hover span,
.text-link:hover span {
  transform: translateX(3px);
}

.feature-grid-inner {
  padding-bottom: 0;
}

.solution-divider {
  margin: 22px 0 18px;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.16), transparent);
}

.popular-note {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.popular-note p {
  color: var(--weak);
  font-size: 13px;
}

.process-section {
  background: rgba(6, 13, 22, 0.42);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.process-steps {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  counter-reset: process-item;
}

.process-item {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  backdrop-filter: blur(8px);
  overflow: hidden;
  transition: transform 0.3s var(--ease), border-color 0.3s var(--ease);
}

.process-item:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.22);
}

.process-num {
  font-family: var(--font-num);
  font-size: 44px;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.35);
  line-height: 1;
  letter-spacing: -0.08em;
  margin-bottom: 22px;
}

.process-num::before {
  content: "0" counter(process-item);
  counter-increment: process-item;
  color: transparent;
  background: linear-gradient(135deg, rgba(47, 203, 203, 0.75), rgba(229, 184, 104, 0.55));
  -webkit-background-clip: text;
  background-clip: text;
}

.process-item h3 {
  font-size: 17px;
  margin-bottom: 12px;
}

.process-item p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.news-section {
  position: relative;
  background: linear-gradient(180deg, rgba(8, 16, 29, 0), rgba(8, 17, 30, 0.4) 30%, rgba(8, 17, 30, 0.5));
}

.news-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
}

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

.filter-chip {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0 15px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  transition: all 0.25s var(--ease);
}

.filter-chip:hover {
  border-color: rgba(47, 203, 203, 0.35);
  color: var(--text);
  background: rgba(47, 203, 203, 0.06);
}

.filter-chip.is-active {
  color: #0d1a21;
  background: var(--primary);
  border-color: var(--primary);
  font-weight: 700;
}

.news-panel {
  margin-top: 30px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  padding: 22px;
}

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

.news-card {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 20px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  transition: border-color 0.25s var(--ease), background 0.25s var(--ease);
}

.news-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
}

.news-thumb {
  overflow: hidden;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.05);
  min-height: 120px;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-main {
  padding: 4px 6px 4px 0;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 10px;
  color: var(--weak);
  font-size: 13px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 24px;
  padding: 0 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.72);
  font-size: 12px;
  font-weight: 500;
}

.news-card h3 {
  font-size: 18px;
  margin-bottom: 10px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-card h3 a {
  color: var(--text);
}

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

.news-main p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}

.news-empty {
  padding: 46px 20px;
  text-align: center;
  color: var(--weak);
  font-size: 15px;
  border: 1px dashed rgba(255, 255, 255, 0.16);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.02);
}

.empty-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--muted);
  margin-bottom: 12px;
}

.skeleton-card {
  position: relative;
  overflow: hidden;
}

.skeleton-card::after {
  content: "";
  position: absolute;
  inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.07), transparent);
  animation: skeleton-loading 1.4s infinite;
}

@keyframes skeleton-loading {
  100% {
    transform: translateX(100%);
  }
}

.faq-section {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.faq-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr);
  gap: 60px;
  align-items: start;
}

.faq-head h2 {
  margin-bottom: 20px;
}

.faq-head p {
  color: var(--muted);
  margin-bottom: 30px;
}

.faq-note {
  background: var(--amber-soft);
  border: 1px solid rgba(229, 184, 104, 0.18);
  border-radius: var(--radius-md);
  padding: 18px;
  color: #d9c6a1;
  font-size: 14px;
  line-height: 1.7;
}

.faq-wrap {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}

.faq-item.is-open {
  border-color: rgba(47, 203, 203, 0.3);
  background: rgba(255, 255, 255, 0.06);
}

.faq-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  min-height: 58px;
  padding: 16px 22px;
  background: transparent;
  border: 0;
  color: var(--text);
  font-size: 16px;
  font-weight: 600;
  text-align: left;
}

.faq-icon {
  position: relative;
  margin-left: 14px;
  flex: 0 0 32px;
  height: 32px;
  border-radius: 9px;
  background: rgba(47, 203, 203, 0.12);
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 14px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transform: translate(-50%, -50%);
}

.faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item.is-open .faq-icon {
  background: rgba(47, 203, 203, 0.22);
}

.faq-item.is-open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(0);
}

.faq-content {
  display: none;
  padding: 0 22px 22px;
}

.faq-item.is-open .faq-content {
  display: block;
}

.faq-content p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 16px;
}

.cta-section {
  padding-top: 88px;
}

.cta-band {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-xl);
  padding: 64px 56px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px;
  background: rgba(7, 15, 27, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: var(--shadow-card);
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.43;
  z-index: 0;
}

.cta-band::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, rgba(6, 12, 22, 0.92) 30%, rgba(7, 16, 28, 0.55) 100%);
  z-index: 0;
}

.cta-content {
  position: relative;
  z-index: 1;
}

.cta-content h2 {
  margin-bottom: 16px;
  max-width: 580px;
}

.cta-content p {
  color: var(--muted);
  margin-bottom: 22px;
  max-width: 560px;
}

.cta-actions {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 16px;
}

.footer-cozy-note {
  margin-top: 18px;
  color: var(--weak);
}

.site-footer {
  margin-top: 80px;
  background: rgba(4, 8, 15, 0.92);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 60px 0 28px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr 1.2fr;
  gap: 44px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand .brand-logo {
  margin-bottom: 16px;
}

.footer-brand p {
  color: var(--weak);
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
}

.footer-title {
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  color: var(--weak);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  min-height: 28px;
}

.footer-nav a:hover {
  color: var(--primary);
}

.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
  color: var(--weak);
  font-size: 14px;
}

.footer-meta span {
  display: flex;
  gap: 8px;
  align-items: flex-start;
  line-height: 1.6;
}

.footer-meta svg {
  flex: 0 0 auto;
  color: var(--primary);
}

.footer-bottom {
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  color: rgba(255, 255, 255, 0.4);
  font-size: 13px;
}

.footer-bottom .brand-domain {
  color: rgba(255, 255, 255, 0.34);
}

.reveal-overlay {
  background: rgba(3, 8, 15, 0.78);
  backdrop-filter: blur(10px);
}

.reveal.contact-reveal {
  background: linear-gradient(145deg, rgba(14, 26, 42, 0.96), rgba(9, 17, 30, 0.96));
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 24px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  max-width: 600px;
  padding: 0;
  color: var(--text);
  overflow: hidden;
}

.contact-reveal .close-button {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  color: var(--muted);
  font-size: 28px;
  line-height: 1;
  right: 14px;
  top: 12px;
  transition: color 0.25s, background 0.25s;
}

.contact-reveal .close-button:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.modal-card {
  padding: 34px;
}

.modal-card .eyebrow {
  margin-bottom: 10px;
}

.modal-card h3 {
  font-size: 24px;
  margin-bottom: 14px;
}

.modal-card > p {
  color: var(--muted);
  font-size: 15px;
  margin-bottom: 26px;
}

.form-field {
  margin-bottom: 18px;
}

.form-field label {
  display: block;
  color: var(--text);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
}

.form-field .optional {
  color: var(--weak);
  font-weight: 400;
  font-size: 13px;
}

.form-input,
textarea.form-input {
  width: 100%;
  min-height: 48px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 12px;
  padding: 13px 16px;
  color: var(--text);
  font-family: inherit;
  font-size: 15px;
  transition: border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s;
}

textarea.form-input {
  min-height: 110px;
  resize: vertical;
}

.form-input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.form-input:focus {
  background: rgba(255, 255, 255, 0.09);
  border-color: rgba(47, 203, 203, 0.7);
  box-shadow: 0 0 0 4px rgba(47, 203, 203, 0.12);
}

.privacy-link {
  border: 0;
  background: none;
  color: var(--primary);
  padding: 4px 0;
  font-size: 13px;
  font-weight: 500;
  min-height: 28px;
}

.privacy-link:hover {
  color: var(--primary-bright);
  text-decoration: underline;
}

.privacy-note {
  margin-top: 8px;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  color: var(--weak);
  font-size: 13px;
  line-height: 1.75;
}

.form-tip {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(47, 203, 203, 0.12);
  color: var(--text);
  font-size: 14px;
}

.form-submit {
  width: 100%;
  margin-top: 10px;
}

.reveal-overlay {
  z-index: 1000;
}

.reveal {
  z-index: 1001;
}

@media (max-width: 1024px) {
  :root {
    --space-section: 72px;
  }

  .section {
    padding: 72px 0;
  }

  .hero-inner {
    grid-template-columns: minmax(0, 1fr);
  }

  .hero-quick {
    max-width: 560px;
  }

  .problems-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .solution-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .solution-card.featured {
    grid-column: span 2;
  }

  .process-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
  }

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

  .cta-band {
    grid-template-columns: 1fr;
    padding: 44px 36px;
  }

  .cta-actions {
    align-items: flex-start;
  }
}

@media (max-width: 768px) {
  body {
    font-size: 16px;
  }

  .section {
    padding: 56px 0;
  }

  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .site-header {
    top: 8px;
    padding: 0 8px;
  }

  .header-shell {
    min-height: 64px;
    border-radius: 16px;
    padding: 8px 12px;
  }

  .header-cta {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    left: 12px;
    right: 12px;
    top: 80px;
    background: rgba(7, 15, 25, 0.98);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 20px;
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
    box-shadow: var(--shadow-float);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.98);
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
  }

  body.nav-open .site-nav {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
  }

  .nav-link {
    padding: 0 14px;
    min-height: 48px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.03);
  }

  .nav-link.active {
    background: rgba(47, 203, 203, 0.1);
  }

  .site-nav::before {
    content: "MK官网入口导航";
    display: block;
    color: var(--weak);
    font-size: 13px;
    padding: 4px 6px 12px;
    border-bottom: 1px solid var(--line);
    margin-bottom: 6px;
  }

  .hero {
    padding: 40px 0 48px;
  }

  .hero-badge {
    margin-bottom: 16px;
  }

  .hero h1 {
    font-size: clamp(1.85rem, 7vw, 2.6rem);
  }

  .hero-lead {
    font-size: 16px;
  }

  .hero-quick {
    padding: 20px;
  }

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

  .news-card {
    grid-template-columns: 1fr;
    padding: 12px;
  }

  .news-thumb {
    min-height: 200px;
  }

  .news-thumb img {
    min-height: 200px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  body {
    font-size: 15px;
    line-height: 1.8;
  }

  .section {
    padding: 48px 0;
  }

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

  .logo-mark {
    min-width: 32px;
    height: 26px;
    font-size: 12px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

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

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

  .solution-card.featured {
    grid-template-columns: 1fr;
    grid-column: auto;
  }

  .solution-card.featured .solution-media {
    min-height: 160px;
  }

  .solution-card.featured .solution-media img {
    min-height: 160px;
    max-height: 200px;
    border-radius: 0;
  }

  .featured .solution-content {
    padding: 20px;
    min-width: 0;
  }

  .solution-card.featured .solution-content {
    padding: 20px;
  }

  .solution-media::after {
    background: linear-gradient(180deg, rgba(8, 16, 29, 0), rgba(8, 16, 29, 0.8));
  }

  .solution-index {
    bottom: auto;
    top: 12px;
    right: 14px;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .cta-band {
    padding: 34px 22px;
    gap: 28px;
  }

  .cta-content h2 {
    font-size: 1.5rem;
  }

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

  .modal-card {
    padding: 24px;
  }

  .modal-card h3 {
    font-size: 21px;
  }
}

/* roulang page: article */
:root{
  --bg-deep:#060a12;
  --bg-surface:#0c1424;
  --bg-card:rgba(14, 22, 38, 0.82);
  --bg-panel:rgba(18, 28, 46, 0.92);
  --surface-light:rgba(255,255,255,0.045);
  --line:rgba(172, 205, 224, 0.12);
  --line-strong:rgba(32, 214, 202, 0.25);
  --text-main:#e4edf5;
  --text-weak:#a7bcce;
  --text-soft:#d0dae2;
  --primary:#23b5b9;
  --primary-bright:#43dfd2;
  --cyan:#4eeabf;
  --amber:#c7a05a;
  --danger:#e58a7b;
  --radius-xl:24px;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-glass:0 22px 70px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(255, 255, 255, 0.03);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei","Inter",system-ui,-apple-system,sans-serif;
  --content-width:1280px;
  --article-width:800px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:var(--font-sans);
  color:var(--text-main);
  background:var(--bg-deep);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-3;
  background:
    radial-gradient(720px 420px at 12% -10%, rgba(36, 157, 166, 0.16) 0%, transparent 60%),
    radial-gradient(900px 500px at 90% 15%, rgba(86, 95, 158, 0.13) 0%, transparent 50%),
    linear-gradient(135deg, #0a0f1d 0%, #060a12 30%, #04060a 100%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(120, 200, 220, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120, 200, 220, 0.025) 1px, transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse at 30% 0%, rgba(0,0,0,0.7) 0%, rgba(0,0,0,0.25) 60%, transparent 100%);
}

a{color:inherit;text-decoration:none;transition:all .25s ease}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
:focus-visible{outline:2px solid var(--primary-bright);outline-offset:3px;border-radius:4px}

.container{
  width:min(var(--content-width), 92%);
  margin:0 auto;
  position:relative;
}
.container.article-limited{
  width:min(var(--article-width), 92%);
}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:14px;
  z-index:200;
  padding:0 20px;
  margin-top:14px;
  pointer-events:none;
}
.header-shell{
  pointer-events:auto;
  max-width:var(--content-width);
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:68px;
  padding:10px 16px 10px 20px;
  border-radius:20px;
  background:rgba(9, 15, 28, 0.82);
  -webkit-backdrop-filter:blur(18px) saturate(135%);
  backdrop-filter:blur(18px) saturate(135%);
  border:1px solid rgba(160, 220, 235, 0.1);
  box-shadow:0 18px 40px rgba(0, 0, 0, 0.25);
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#e9f7fa;
  letter-spacing:.04em;
  font-weight:700;
  flex-shrink:0;
}
.brand-logo .logo-mark{
  background:linear-gradient(135deg, #a7fbe8 0%, #4cb7d0 55%, #bc9354 120%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  font-weight:800;
  font-size:1.3rem;
  border-radius:12px;
}
.site-nav{
  display:flex;
  align-items:center;
  gap:8px;
  flex:1;
  justify-content:center;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 16px;
  border-radius:13px;
  font-size:.95rem;
  color:var(--text-weak);
  border:1px solid transparent;
  transition:all .25s var(--ease);
}
.nav-hash{
  width:5px;
  height:5px;
  border-radius:2px;
  background:rgba(78, 234, 191, 0.4);
  transition:all .3s ease;
}
.nav-link:hover{
  color:#fff;
  background:rgba(255, 255, 255, 0.04);
  border-color:rgba(255, 255, 255, 0.04);
}
.nav-link:hover .nav-hash{
  transform:translateX(2px);
  background:var(--amber);
}
.nav-link.active{
  color:#fff;
  background:rgba(36, 229, 196, 0.1);
  border-color:rgba(90, 235, 205, 0.17);
}
.nav-link.active .nav-hash{
  background:var(--cyan);
  box-shadow:0 0 8px rgba(78, 234, 191, .5);
}
.header-tools{
  display:flex;
  align-items:center;
  gap:10px;
}
.header-cta{
  padding:10px 22px;
  border-radius:12px;
  border:none;
  background:linear-gradient(135deg, rgba(46, 224, 193, .16) 0%, rgba(42, 180, 195, .2) 100%);
  color:#acf4ea;
  border:1px solid rgba(90, 235, 205, .3);
  font-weight:600;
  font-size:.92rem;
  box-shadow:0 4px 18px rgba(24, 191, 169, .12);
  transition:all .3s var(--ease);
}
.header-cta:hover{
  color:#0b1a22;
  background:linear-gradient(135deg, #33d7c7 0%, #4fe0b5 100%);
  box-shadow:0 6px 24px rgba(42, 215, 190, .3);
  transform:translateY(-1px);
  border-color:transparent;
}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border-radius:13px;
  background:rgba(255, 255, 255, 0.05);
  border:1px solid rgba(255, 255, 255, 0.08);
  justify-content:center;
  align-items:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:#d8eeeb;
  border-radius:4px;
  transition:.25s;
}

/* ===== Article Page Layout ===== */
.article-stage{
  position:relative;
  padding:54px 0 48px;
  overflow:hidden;
}
.article-stage::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:
    linear-gradient(90deg, rgba(8, 14, 24, 0.55) 0%, rgba(7, 12, 22, 0.8) 100%),
    url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  opacity:.55;
}
.article-stage::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:40%;
  background:linear-gradient(to top, rgba(6,10,18,0.92) 0%, transparent 100%);
  z-index:0;
}
.breadcrumb-bar{
  position:relative;
  z-index:2;
  margin-bottom:30px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  font-size:.86rem;
  color:var(--text-weak);
}
.breadcrumb a{
  color:rgba(218, 236, 240, 0.72);
  padding:4px 2px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  border-radius:6px;
}
.breadcrumb a:hover{color:var(--primary-bright)}
.breadcrumb .sep{
  width:16px;
  height:1px;
  background:rgba(184, 226, 231, 0.25);
  display:inline-block;
}
.breadcrumb .current{
  color:rgba(225,240,245,.9);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  max-width:340px;
}

.article-heading{
  position:relative;
  z-index:2;
  max-width:880px;
  padding:10px 0 28px;
}
.article-heading h1{
  font-size:clamp(2rem, 4.6vw, 3.3rem);
  line-height:1.22;
  letter-spacing:.01em;
  font-weight:800;
  color:#f3fbfd;
  margin-bottom:28px;
  text-shadow:0 5px 25px rgba(0,0,0,.35);
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 26px;
  color:var(--text-soft);
  font-size:.95rem;
}
.meta-cell{
  display:flex;
  align-items:center;
  gap:8px;
  padding:8px 0;
}
.meta-cell i{
  color:var(--primary-bright);
  font-size:.95rem;
  opacity:.8;
}
.meta-dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:rgba(185, 225, 225, .4);
}

/* ===== Article body post ===== */
.article-single{position:relative;padding:44px 0 38px}
.article-frame{
  background:rgba(10, 17, 32, 0.58);
  border:1px solid rgba(166, 211, 222, .08);
  border-radius:var(--radius-xl);
  padding:clamp(24px, 4.8vw, 62px);
  position:relative;
  overflow:hidden;
}
.article-frame::before{
  content:"";
  position:absolute;
  top:0;left:8%;
  right:8%;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(78,234,191,.42), transparent);
}
.article-body{
  color:rgba(225, 235, 242, 0.92);
  font-size:1.06rem;
  line-height:1.9;
  word-break:break-word;
}
.article-body p{
  margin:0 0 1.6rem;
}
.article-body h2, .article-body h3, .article-body h4{
  color:#eefcff;
  margin:2.6rem 0 1.1rem;
  line-height:1.5;
  letter-spacing:.01em;
}
.article-body h2{
  font-size:1.75rem;
  font-weight:750;
  padding-left:18px;
  border-left:3px solid var(--primary-bright);
  border-radius:2px;
}
.article-body h3{font-size:1.35rem;font-weight:700}
.article-body ul{margin:0 0 1.7rem;padding:0}
.article-body ol{margin:0 0 1.7rem;padding:0;list-style:decimal;padding-left:1.4rem}
.article-body li{
  position:relative;
  padding-left:1.45rem;
  margin-bottom:.85rem;
  line-height:1.85;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:.9em;
  width:14px;
  height:2px;
  background:linear-gradient(90deg, var(--primary-bright), transparent);
  border-radius:2px;
}
.article-body ol li{padding-left:.4rem}
.article-body blockquote{
  margin:2.2rem 0;
  padding:18px 24px;
  background:rgba(19, 32, 51, .52);
  border:1px solid rgba(255, 255, 255, .05);
  border-left:3px solid var(--amber);
  border-radius:var(--radius-md);
  color:#d8e6ee;
}
.article-body blockquote p{margin:0}
.article-body a:not(.btn){
  color:#9be9db;
  text-decoration:underline;
  text-decoration-style:dotted;
  text-underline-offset:4px;
  text-decoration-color:rgba(75, 220, 199, .5);
}
.article-body a:not(.btn):hover{
  color:var(--primary-bright);
  text-decoration-color:var(--primary-bright);
}
.article-body img{
  border-radius:var(--radius-lg);
  margin:2rem auto;
  box-shadow:0 10px 35px rgba(0, 0, 0, .3);
}
.article-body table{
  border-collapse:separate;
  border-spacing:0;
  width:100%;
  margin:2rem 0;
  border-radius:var(--radius-md);
  overflow:hidden;
  color:#d7e4e6;
}
.article-body th,
.article-body td{
  padding:12px 16px;
  border-bottom:1px solid rgba(255,255,255,.08);
  text-align:left;
}
.article-body th{
  background:rgba(15, 31, 46, .6);
  color:#eaf7f3;
}
.article-body code{
  font-family:SFMono-Regular, Consolas, monospace;
  background:rgba(57, 82, 104, .25);
  padding:2px 8px;
  border-radius:6px;
  font-size:.9em;
}

.article-taxonomy{
  margin-top:44px;
  border-top:1px solid var(--line);
  padding-top:26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
}
.article-taxonomy .label-tag{
  display:inline-flex;
  align-items:center;
  background:rgba(120, 200, 220, .08);
  border:1px solid rgba(130, 220, 235, .12);
  color:rgba(221,241,247,.86);
  padding:6px 16px;
  border-radius:999px;
  font-size:.84rem;
  transition:.3s;
}
.article-taxonomy .label-tag:hover{
  background:rgba(78, 234, 191, .1);
  border-color:rgba(78,234,191,.3);
  color:#effff9;
}

/* not found */
.article-missing{
  text-align:center;
  padding:8rem 0;
  font-size:1.2rem;
  color:var(--text-weak);
}
.missing-box{
  background:rgba(17, 28, 44, .55);
  border:1px dashed rgba(255,255,255,.12);
  border-radius:var(--radius-xl);
  padding:60px 24px;
}
.missing-box i{font-size:2.8rem;color:var(--amber);opacity:.6}
.missing-box h2{margin-top:18px;font-weight:700}
.missing-box a{
  margin-top:18px;
  display:inline-block;
  border:1px solid var(--line-strong);
  color:var(--primary-bright);
  padding:10px 26px;
  border-radius:42px;
}
.missing-box a:hover{background:rgba(30, 220, 190,.1)}

/* ===== Recommend / topics ===== */
.entry-index-section{
  padding:48px 0 40px;
  background:rgba(5, 10, 17, .2);
}
.entry-index-header{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:26px;
}
.section-heading{font-size:1.9rem;font-weight:800;color:#eaf7f5;letter-spacing:.01em}
.entry-index-grid{
  display:grid;
  grid-template-columns:5.5fr 5.5fr;
  gap:22px;
}
.index-panel-card{
  display:grid;
  grid-template-columns:118px 1fr;
  background:rgba(12, 22, 36, .64);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all .35s ease;
}
.index-panel-card:hover{
  transform:translateY(-6px);
  border-color:rgba(90, 230, 205, .35);
  box-shadow:0 20px 42px rgba(0,0,0,.25);
}
.index-panel-media{
  position:relative;
  min-height:150px;
  overflow:hidden;
}
.index-panel-media img,.index-panel-media .img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.index-panel-card:hover .index-panel-media img{
  transform:scale(1.06);
}
.index-panel-content{
  padding:18px 22px 16px 14px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.index-panel-content .panel-cat{
  color:var(--amber);
  font-size:.77rem;
  letter-spacing:.12em;
  font-weight:600;
}
.index-panel-content h3{font-size:1.1rem;line-height:1.5;font-weight:700}
.index-panel-content p{
  font-size:.9rem;
  color:var(--text-weak);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.index-panel-go{
  font-size:.86rem;
  color:var(--primary-bright);
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:auto;
}
.index-panel-go i{transition:transform .3s var(--ease)}
.index-panel-card:hover .index-panel-go i{transform:translateX(5px)}

/* ===== Article CTA nano ===== */
.article-cta-nano{
  margin:16px 0 62px;
}
.nano-cta-inner{
  background:rgba(11, 22, 36, .86);
  border:1px solid rgba(102, 221, 213, .15);
  border-radius:var(--radius-lg);
  padding:28px 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:18px;
  position:relative;
  overflow:hidden;
}
.nano-cta-inner::before{
  content:"";
  position:absolute;
  top:-50px;
  right:10%;
  width:240px;
  height:240px;
  background:radial-gradient(circle, rgba(40, 129, 160, .2) 0%, transparent 70%);
  pointer-events:none;
}
.nano-cta-left{
  display:flex;
  align-items:center;
  gap:18px;
  max-width:720px;
}
.nano-icon{
  background:rgba(30, 224, 203, .08);
  border:1px solid rgba(55, 218, 196, .18);
  width:48px;
  height:48px;
  min-width:48px;
  border-radius:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--cyan);
  font-size:1.2rem;
}
.nano-cta-text h3{font-size:1.2rem;font-weight:700}
.nano-cta-text p{font-size:.92rem;color:var(--text-weak);line-height:1.6}
.btn-feedback{
  background:linear-gradient(135deg, #2ecab9 0%, #3ca0ba 100%);
  color:#08151c;
  font-weight:800;
  border:none;
  border-radius:13px;
  padding:13px 26px;
  box-shadow:0 8px 24px rgba(45, 201, 199, .2);
  transition:all .25s ease;
}
.btn-feedback:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 30px rgba(45, 201, 199, .35);
  background:linear-gradient(135deg, #3adfd1 0%, #58c3b6 100%);
  color:#061018;
}

/* ===== Footer ===== */
.site-footer{
  background:rgba(5, 9, 16, .88);
  border-top:1px solid rgba(160, 225, 220, .07);
  padding:70px 0 0;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.2fr .7fr 1.2fr;
  gap:44px;
  padding-bottom:46px;
}
.footer-brand p{
  color:var(--text-weak);
  font-size:.95rem;
  line-height:1.85;
  margin-top:18px;
  max-width:420px;
}
.footer-title{
  font-size:.9rem;
  color:rgba(207, 214, 220, .5);
  letter-spacing:.2em;
  font-weight:600;
  margin-bottom:20px;
}
.footer-nav{
  display:grid;
  gap:4px;
}
.footer-nav a{
  display:block;
  padding:7px 0;
  color:var(--text-soft);
  transition:.3s;
  border-radius:6px;
}
.footer-nav a:hover{color:var(--primary-bright);padding-left:8px}
.footer-meta{
  display:grid;
  gap:14px;
}
.footer-meta span{
  display:flex;
  gap:12px;
  color:var(--text-weak);
  font-size:.9rem;
  line-height:1.7;
  align-items:flex-start;
}
.footer-meta svg{
  width:18px;
  height:18px;
  min-width:18px;
  color:var(--cyan);
  opacity:.7;
  margin-top:3px;
}
.footer-bottom{
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.04);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  color:rgba(197, 211, 218, .45);
  font-size:.82rem;
  gap:12px;
}
.brand-domain{color:rgba(170,195,202,.65)}

/* ===== Reveal Modal ===== */
.reveal.feedback-reveal{
  background:rgba(8, 15, 27, 0.92);
  border:1px solid rgba(150, 230, 230, .16);
  border-radius:var(--radius-xl);
  box-shadow:0 34px 110px rgba(0, 0, 0, .58);
  color:#e5eff2;
  max-width:640px;
  overflow:visible;
}
.reveal.feedback-reveal .close-button{
  background:rgba(255,255,255,.06);
  border-radius:50%;
  width:44px;
  height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  right:12px;
  top:12px;
  color:#aebdc6;
}
.feedback-heading{
  text-align:center;
  margin-bottom:24px;
}
.feedback-heading h3{
  font-size:1.75rem;
  font-weight:800;
  color:#ecfbf7;
}
.feedback-heading p{
  color:var(--text-weak);
  font-size:.95rem;
  margin-top:6px;
}
.feedback-form .form-row{
  margin-bottom:22px;
}
.feedback-form label{
  display:block;
  font-size:.88rem;
  color:var(--text-weak);
  margin-bottom:9px;
  font-weight:500;
}
.feedback-form input,
.feedback-form select,
.feedback-form textarea{
  width:100%;
  background:rgba(5, 11, 19, .6);
  border:1px solid rgba(172, 212, 222, .12);
  border-radius:12px;
  padding:14px 16px;
  color:var(--text-main);
  font-size:1rem;
  transition:.25s;
  line-height:1.5;
}
.feedback-form input:focus,
.feedback-form textarea:focus,
.feedback-form select:focus{
  outline:none;
  border-color:rgba(84, 242, 213, .55);
  box-shadow:0 0 0 4px rgba(56,221,202,.09);
  background:rgba(7, 15, 24, .9);
}
.feedback-form textarea{min-height:108px;resize:vertical}
.optional-mark{color:var(--amber);font-size:.8rem}
.checkbox-line{
  display:flex;
  align-items:flex-start;
  gap:11px;
  margin-top:16px;
  color:var(--text-weak);
  font-size:.82rem;
}
.checkbox-line input{
  width:auto;
  margin-top:3px;
  accent-color:#2cb7a7;
}
.checkbox-toggle-btn{
  color:var(--primary-bright);
  cursor:pointer;
  border-bottom:1px dashed rgba(78, 234, 191, .4);
}
.privacy-hidden{
  display:none;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.05);
  border-radius:12px;
  padding:14px 16px;
  margin-top:12px;
  color:var(--text-weak);
  font-size:.8rem;
  line-height:1.8;
}
.feedback-submit{
  display:block;
  width:100%;
  margin:24px 0 14px;
  border:none;
  background:linear-gradient(135deg, #34d5bd 0%, #4dbdc3 100%);
  color:#04110f;
  font-weight:800;
  font-size:1rem;
  padding:14px 18px;
  border-radius:14px;
  transition:.3s;
  cursor:pointer;
}
.feedback-submit:hover{
  opacity:.85;
  transform:translateY(-2px);
  box-shadow:0 10px 30px rgba(38, 200, 167, .4);
}
.feedback-note{
  text-align:center;
  color:rgba(180, 207, 213, .55);
  font-size:.77rem;
}

.site-header{
  transition:transform .35s ease;
}
.section-title-center{
  text-align:center;
  margin-bottom:18px;
}

/* responsive */
@media(max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .entry-index-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:860px){
  .header-shell{min-height:64px;padding-left:16px}
  .site-nav{
    position:fixed;
    top:78px;
    right:20px;
    left:auto;
    width:300px;
    max-width:88vw;
    flex-direction:column;
    align-items:flex-start;
    padding:18px;
    background:rgba(8, 14, 24, 0.96);
    -webkit-backdrop-filter:blur(24px);
    backdrop-filter:blur(24px);
    border:1px solid rgba(110, 222, 220, .12);
    border-radius:18px;
    gap:10px;
    transform:translateY(-18px);
    opacity:0;
    pointer-events:none;
    transition:.3s;
  }
  .site-nav.open{
    transform:translateY(0);
    opacity:1;
    pointer-events:auto;
  }
  .nav-link{
    width:100%;
    border-radius:10px;
    justify-content:flex-start;
    padding:13px 16px;
    min-height:44px;
  }
  .header-cta{display:none}
  .nav-toggle{display:flex}
  .article-frame{padding:30px 22px}
  .entry-index-grid{grid-template-columns:1fr}
  .index-panel-card{grid-template-columns:130px 1fr}
  .nano-cta-inner{padding:24px}
}
@media(max-width:640px){
  .article-heading h1{font-size:1.85rem}
  .article-stage{padding:38px 0 34px}
  .breadcrumb-bar{margin-bottom:20px}
  .article-frame{padding:24px 18px;border-radius:18px}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .article-taxonomy .label-tag{padding:5px 12px}
  .nano-cta-left{flex-direction:column;align-items:flex-start}
  .index-panel-card{grid-template-columns:1fr}
  .index-panel-media{height:150px}
  .index-panel-media img{width:100%;height:100%}
  .section-heading{font-size:1.5rem}
  .breadcrumb .current{max-width:190px}
  body{line-height:1.8}
  .footer-bottom{justify-content:center;text-align:center}
}

/* roulang page: category1 */
:root {
  --bg-deep: #050d19;
  --bg-body: #081323;
  --bg-raise: #0e2135;
  --bg-soft: rgba(255, 255, 255, .045);
  --surface: rgba(255, 255, 255, .065);
  --surface-2: rgba(255, 255, 255, .032);
  --line: rgba(255, 255, 255, .09);
  --line-bright: rgba(255, 255, 255, .16);
  --text: #e8f1f8;
  --text-soft: rgba(216, 231, 246, .8);
  --muted: rgba(188, 205, 230, .58);
  --primary: #33e1e8;
  --primary-rgb: 51, 225, 232;
  --primary-soft: rgba(51, 225, 232, .14);
  --amber: #dfb06b;
  --danger: #f28b82;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 18px 35px rgba(0, 0, 0, .28), 0 2px 6px rgba(0, 0, 0, .18);
  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-num: Inter, "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --ease: cubic-bezier(.2, .75, .3, 1);
  --gap-section: clamp(56px, 7vw, 96px);
  --radius-pill: 999px;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  background:
    radial-gradient(1000px 500px at 85% -10%, rgba(49, 124, 155, .18), transparent 60%),
    radial-gradient(800px 420px at -10% 18%, rgba(51, 225, 232, .07), transparent 55%),
    linear-gradient(180deg, #071524 0%, #081323 42%, #07101d 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
a {
  color: inherit;
  text-decoration: none;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
img {
  max-width: 100%;
  display: block;
}
button,
input,
textarea {
  font: inherit;
}
ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
p {
  margin-top: 0;
}
.container {
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(16px, 3vw, 32px);
}
.container-full {
  width: 100%;
}
.section {
  padding-block: var(--gap-section);
  position: relative;
}
.section-sep {
  border-top: 1px solid rgba(255, 255, 255, .055);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  color: var(--primary);
  margin-bottom: 16px;
}
.eyebrow::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--primary);
  border-radius: 3px;
  opacity: .85;
}
.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 28px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}
.section-head h2,
.section-lead h2 {
  font-size: clamp(1.8rem, 3.2vw, 2.6rem);
  line-height: 1.25;
  margin: 0 0 12px;
  font-weight: 800;
  letter-spacing: -.02em;
}
.section-head .lead,
.section-lead p {
  color: var(--text-soft);
  font-size: 1rem;
  max-width: 76ch;
  margin: 0;
}
.section-title-sm {
  color: var(--muted);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  margin: 0 0 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: 0;
  border-radius: var(--radius-sm);
  min-height: 44px;
  padding: 0 22px;
  cursor: pointer;
  font-weight: 700;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  text-align: center;
}
.btn:hover {
  transform: translateY(-1px);
}
.btn:active {
  transform: translateY(1px);
}
.btn-sm {
  min-height: 40px;
  padding: 0 18px;
  font-size: .92rem;
}
.btn-primary {
  background: linear-gradient(135deg, #44eef5 0%, var(--primary) 50%, #20d9e1 100%);
  color: #07131e;
  box-shadow: 0 8px 24px rgba(51, 225, 232, .24), 0 1px 0 rgba(255, 255, 255, .28) inset;
  border: 1px solid rgba(255, 255, 255, .3);
}
.btn-primary:hover {
  box-shadow: 0 10px 32px rgba(51, 225, 232, .38), 0 1px 0 rgba(255, 255, 255, .38) inset;
}
.btn-outline {
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line-bright);
  color: #eaf4ff;
  backdrop-filter: blur(8px);
}
.btn-outline:hover {
  background: rgba(255, 255, 255, .09);
  border-color: rgba(255, 255, 255, .28);
  box-shadow: 0 4px 18px rgba(255, 255, 255, .08);
}
.btn-ghost {
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-soft);
}
.btn-ghost:hover {
  color: #fff;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  padding: 12px 0;
  background: rgba(5, 15, 26, .78);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.header-shell {
  display: flex;
  align-items: center;
  gap: 20px;
  max-width: 1280px;
  margin-inline: auto;
  padding-inline: clamp(16px, 3vw, 32px);
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  color: var(--text);
}
.brand-logo .logo-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: linear-gradient(145deg, #22bfd6, #116b80);
  color: #eafdff;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: -.05em;
  box-shadow: 0 6px 18px rgba(51, 225, 232, .22), 0 1px 0 rgba(255, 255, 255, .25) inset;
}
.brand-logo > span:last-child {
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: .01em;
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-left: auto;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 44px;
  padding: 0 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  color: var(--text-soft);
  font-size: .95rem;
  font-weight: 600;
  transition: all .25s var(--ease);
  white-space: nowrap;
}
.nav-link .nav-hash {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0;
  transition: opacity .25s ease;
}
.nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, .055);
}
.nav-link.active {
  background: rgba(51, 225, 232, .1);
  color: #fff;
  border-color: rgba(51, 225, 232, .2);
  box-shadow: 0 4px 16px rgba(51, 225, 232, .07) inset;
}
.nav-link.active .nav-hash,
.nav-link:hover .nav-hash {
  opacity: 1;
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 12px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  height: 2px;
  border-radius: 4px;
  background: white;
  transition: transform .3s var(--ease), opacity .3s ease;
}
.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.page-hero {
  position: relative;
  padding: clamp(52px, 6vw, 82px) 0 clamp(46px, 6vw, 74px);
  overflow: hidden;
  min-height: 560px;
  display: flex;
  align-items: center;
}
.page-hero .hero-bg {
  position: absolute;
  inset: -20px;
  background: url('/assets/images/backpic/back-2.png') no-repeat center 38% / cover;
  opacity: .36;
  filter: saturate(114%) contrast(102%);
}
.page-hero .hero-mask {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(4, 13, 23, .82) 0%, rgba(7, 19, 33, .58) 58%, rgba(9, 25, 40, .32) 100%),
    radial-gradient(740px 400px at 78% 12%, rgba(51, 225, 232, .1), transparent 65%);
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1fr 1.04fr 0.9fr;
  align-items: center;
  gap: 28px;
}
.hero-path {
  grid-column: 1 / 2;
}
.hero-title-block {
  grid-column: 2 / 3;
}
.hero-aside {
  grid-column: 3 / 4;
}
.crumb-path {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: .84rem;
  color: var(--muted);
  margin-bottom: 14px;
}
.crumb-path a:hover {
  color: var(--primary);
}
.crumb-path .sep {
  color: rgba(255, 255, 255, .22);
}
.hero-title-block h1 {
  margin: 12px 0 18px;
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.14;
  letter-spacing: -.035em;
  font-weight: 900;
}
.hero-title-block h1 .line-primary {
  display: inline-block;
  color: var(--primary);
  text-shadow: 0 0 30px rgba(51, 225, 232, .18);
}
.hero-title-block p {
  font-size: 1.04rem;
  line-height: 1.85;
  color: var(--text-soft);
  max-width: 40em;
  margin: 0 0 24px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
}
.hero-tip {
  margin-top: 16px;
  font-size: .84rem;
  color: var(--muted);
}
.hero-tip i {
  color: var(--amber);
  margin-right: 5px;
}
.hero-aside .panel-card {
  padding: 24px;
}
.mini-label {
  font-size: 12px;
  color: var(--primary);
  letter-spacing: .1em;
  font-weight: 700;
  margin-bottom: 16px;
}
.mini-check-list li {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  color: var(--text-soft);
  font-size: .94rem;
}
.mini-check-list i {
  color: var(--primary);
  margin-top: 4px;
  min-width: 16px;
  text-align: center;
}
.mini-check-list span {
  line-height: 1.55;
}
.mini-note {
  margin: 18px 0 0;
  padding-top: 14px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  color: var(--muted);
  font-size: .82rem;
}
.card-panel {
  background: linear-gradient(140deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .025) 55%, rgba(255, 255, 255, .06));
  border: 1px solid var(--line-bright);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}
.glass-panel {
  background: linear-gradient(145deg, rgba(255, 255, 255, .065), rgba(255, 255, 255, .024));
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.grid-card-flow {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 22px;
}
.guide-card {
  position: relative;
  grid-column: span 4;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, .075), rgba(255, 255, 255, .028));
  border-radius: var(--radius-md);
  padding: 26px 24px 24px;
  overflow: hidden;
  transition: border-color .32s var(--ease), transform .32s var(--ease), box-shadow .32s var(--ease);
}
.guide-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, .25), rgba(255, 255, 255, 0));
}
.guide-card:hover {
  transform: translateY(-5px);
  border-color: rgba(51, 225, 232, .24);
  box-shadow: 0 14px 30px rgba(0, 0, 0, .24), 0 0 0 1px rgba(51, 225, 232, .05);
}
.guide-card.wide {
  grid-column: span 6;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0 22px;
}
.guide-card .card-index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 42px;
  min-height: 30px;
  border-radius: 8px;
  background: rgba(51, 225, 232, .08);
  color: var(--primary);
  border: 1px solid rgba(51, 225, 232, .12);
  font-family: var(--font-num);
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .05em;
  margin-bottom: 14px;
  width: fit-content;
}
.guide-card h3 {
  margin: 8px 0 10px;
  font-size: 1.2rem;
  line-height: 1.45;
  font-weight: 750;
  letter-spacing: -.01em;
}
.guide-card p {
  margin: 0 0 18px;
  color: var(--text-soft);
  font-size: .94rem;
  line-height: 1.8;
}
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: .9rem;
  font-weight: 700;
}
.card-link .arrow {
  transition: transform .3s var(--ease);
}
.card-link:hover .arrow {
  transform: translateX(4px);
}
.card-link:hover {
  color: #8cf3fa;
}
.section-actions {
  margin-top: 34px;
  text-align: center;
}
.bottom-rule {
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(51, 225, 232, .22), transparent);
  margin: 24px auto 14px;
  width: 160px;
}
.process-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, .02), transparent);
}
.split-process {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 30px;
  align-items: center;
}
.process-media {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line-bright);
  background: var(--surface-2);
  box-shadow: var(--shadow-card);
}
.process-media img {
  width: 100%;
  height: 420px;
  object-fit: cover;
}
.steps-rail {
  border-left: 1px solid rgba(255, 255, 255, .1);
  padding-left: 0;
  margin-left: 6px;
}
.step-item {
  position: relative;
  padding: 0 0 30px 30px;
}
.step-item:last-child {
  padding-bottom: 0;
}
.step-item::before {
  content: "";
  position: absolute;
  left: -5px;
  top: 6px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 4px rgba(51, 225, 232, .13), 0 0 12px rgba(51, 225, 232, .3);
}
.step-item::after {
  content: "";
  position: absolute;
  left: -1px;
  top: 22px;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, rgba(51, 225, 232, .19), rgba(255, 255, 255, .06));
}
.step-item:last-child::after {
  display: none;
}
.step-item .step-no {
  display: block;
  font-family: var(--font-num);
  font-size: .78rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: .1em;
  margin-bottom: 6px;
}
.step-item h3 {
  margin: 4px 0 8px;
  font-size: 1.13rem;
  font-weight: 750;
}
.step-item p {
  margin: 0;
  color: var(--text-soft);
  font-size: .93rem;
  line-height: 1.75;
}
.duo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.duo-card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 34px;
  background:
    linear-gradient(150deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .02) 55%, rgba(255, 255, 255, .04));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  overflow: hidden;
}
.duo-card::after {
  content: "";
  position: absolute;
  right: -60px;
  top: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(51, 225, 232, .12), transparent 70%);
  pointer-events: none;
}
.duo-card:hover {
  transform: translateY(-4px);
  border-color: rgba(51, 225, 232, .22);
  box-shadow: 0 18px 34px rgba(0, 0, 0, .24);
}
.duo-card .duo-mark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--amber);
  text-transform: uppercase;
  margin-bottom: 20px;
}
.duo-card .duo-mark i {
  color: var(--amber);
}
.duo-card h3 {
  margin: 0 0 16px;
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.5;
}
.duo-card p {
  color: var(--text-soft);
  margin: 0 0 22px;
  max-width: 44ch;
}
.duo-card .duo-link {
  margin-top: auto;
  color: var(--primary);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: gap .3s var(--ease);
}
.duo-card .duo-link:hover {
  gap: 12px;
}
.faq-section {
  background: linear-gradient(180deg, rgba(255, 255, 255, .018), rgba(51, 225, 232, .025));
  border-top: 1px solid rgba(255, 255, 255, .06);
}
.faq-accordion {
  max-width: 900px;
  margin-inline: auto;
}
.faq-accordion .accordion-item {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .3s ease, background .3s ease;
}
.faq-accordion .accordion-item.is-active {
  background: var(--surface-2);
  border-color: rgba(51, 225, 232, .22);
}
.faq-accordion .accordion-title {
  background: transparent;
  padding: 20px 24px;
  color: var(--text) !important;
  border: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  line-height: 1.5;
  font-size: 1.02rem;
  font-weight: 700;
  cursor: pointer;
  transition: color .3s ease;
}
.faq-accordion .accordion-title span {
  flex: 1;
}
.faq-accordion .accordion-title .faq-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, .08);
  color: var(--primary);
  font-size: 18px;
  transition: transform .3s var(--ease), background .3s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title .faq-icon {
  background: var(--primary-soft);
  transform: rotate(45deg);
}
.faq-accordion .accordion-content {
  background: transparent;
  border: 0;
  color: var(--text-soft);
  font-size: .95rem;
  line-height: 1.8;
  padding: 2px 24px 22px 54px;
}
.faq-accordion .accordion-content p {
  margin-bottom: 0;
}
.faq-accordion .accordion-item.is-active {
  background: rgba(255, 255, 255, .025);
}
.faq-bottom {
  text-align: center;
  margin-top: 34px;
  color: var(--muted);
  font-size: .9rem;
}
.cta-band {
  position: relative;
  border-radius: 28px;
  padding: clamp(40px, 7vw, 72px);
  text-align: center;
  border: 1px solid rgba(51, 225, 232, .18);
  background:
    radial-gradient(600px 280px at 20% 0%, rgba(51, 225, 232, .14), transparent 60%),
    radial-gradient(400px 260px at 85% 30%, rgba(219, 174, 108, .11), transparent 55%),
    linear-gradient(145deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .025) 48%, rgba(255, 255, 255, .06));
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.cta-band::before {
  content: "";
  position: absolute;
  left: 5%;
  right: 5%;
  top: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .4), transparent);
}
.cta-band h2 {
  margin: 0 0 18px;
  font-size: clamp(1.6rem, 3vw, 2.5rem);
  line-height: 1.35;
  font-weight: 850;
}
.cta-band p {
  max-width: 62ch;
  margin: 0 auto 28px;
  color: var(--text-soft);
}
.cta-band .trust-foot {
  margin-top: 24px;
  font-size: .85rem;
  color: var(--muted);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px 26px;
}
.site-footer {
  margin-top: 40px;
  background: linear-gradient(180deg, rgba(5, 14, 25, .98), rgba(4, 12, 22, .99));
  border-top: 1px solid rgba(255, 255, 255, .07);
  padding: 56px 0 24px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.1fr;
  gap: 40px;
}
.footer-brand p {
  color: var(--muted);
  font-size: .92rem;
  max-width: 46em;
  margin: 18px 0 0;
}
.footer-title {
  font-size: 1rem;
  font-weight: 700;
  margin: 8px 0 18px;
}
.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-nav a {
  color: var(--text-soft);
  font-size: .93rem;
  transition: color .3s var(--ease), padding-left .3s var(--ease);
}
.footer-nav a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-meta {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding-bottom: 4px;
}
.footer-meta span {
  display: flex;
  gap: 8px;
  color: var(--muted);
  font-size: .9rem;
  line-height: 1.5;
}
.footer-meta svg {
  flex-shrink: 0;
  margin-top: 2px;
}
.footer-bottom {
  margin-top: 52px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .05);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px 20px;
  color: var(--muted);
  font-size: .83rem;
}
.footer-bottom .brand-domain {
  font-family: var(--font-num);
  letter-spacing: .05em;
}
.form-modal {
  max-width: 640px;
  padding: 28px;
  border-radius: 24px;
  background:
    radial-gradient(500px 200px at 80% 0%, rgba(51, 225, 232, .08), transparent 60%),
    linear-gradient(160deg, #102a3e 0%, #0a1a2d 45%, #081623 100%) !important;
  border: 1px solid rgba(255, 255, 255, .14);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .5);
  color: var(--text);
}
.form-modal h3 {
  font-size: 1.45rem;
  margin: 6px 0 8px;
  font-weight: 800;
  color: #fff;
}
.form-modal .modal-sub {
  font-size: .92rem;
  color: var(--text-soft);
  margin: 0 0 24px;
}
.reveal-overlay {
  background: rgba(3, 9, 18, .68) !important;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.form-modal .close-button {
  right: 16px;
  top: 16px;
  font-size: 1.7rem;
  color: var(--muted);
}
.form-modal .close-button:hover {
  color: white;
}
.form-group label {
  display: block;
  font-size: .88rem;
  font-weight: 600;
  margin-bottom: 7px;
  color: var(--text-soft);
}
.form-group label .opt {
  color: var(--muted);
  font-weight: 400;
}
.form-group input,
.form-group textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, .12);
  background: rgba(255, 255, 255, .05);
  color: var(--text);
  font-size: .96rem;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.form-group textarea {
  min-height: 110px;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(51, 225, 232, .65);
  outline: none;
  box-shadow: 0 0 0 4px rgba(51, 225, 232, .13);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(200, 217, 238, .45);
}
.form-submit {
  margin-top: 8px;
}
.privacy-block {
  margin-top: 16px;
}
.privacy-toggle {
  background: none;
  border: 0;
  color: var(--muted);
  cursor: pointer;
  font-size: .84rem;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 3px;
}
.privacy-toggle:hover {
  color: var(--primary);
}
.privacy-drop {
  display: none;
  margin-top: 10px;
  padding: 12px 14px;
  border-left: 2px solid var(--primary-soft);
  background: rgba(51, 225, 232, .05);
  border-radius: 0 10px 10px 0;
  font-size: .8rem;
  color: var(--muted);
  line-height: 1.7;
}
.privacy-drop.show {
  display: block;
}
.form-result {
  margin-top: 14px;
  color: var(--primary);
  font-size: .87rem;
  line-height: 1.6;
}
.form-agree-tip {
  font-size: .8rem;
  color: var(--muted);
  margin-top: 12px;
}
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr 1.1fr;
  }
  .hero-aside {
    grid-column: 1 / -1;
    max-width: 660px;
  }
  .hero-title-block {
    grid-column: 2 / -1;
  }
  .guide-card {
    grid-column: span 6;
  }
  .guide-card.wide {
    grid-column: span 12;
    grid-template-columns: auto 1fr;
  }
  .split-process {
    grid-template-columns: 1fr;
  }
  .process-media img {
    height: 300px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}
@media (max-width: 768px) {
  body {
    font-size: 15px;
    line-height: 1.8;
  }
  .section {
    padding-block: 52px;
  }
  .header-shell {
    gap: 8px;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: 62px;
    left: clamp(16px, 4vw, 32px);
    right: clamp(16px, 4vw, 32px);
    flex-direction: column;
    align-items: stretch;
    padding: 12px;
    gap: 4px;
    background: rgba(6, 16, 29, .96);
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 18px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, .35);
    backdrop-filter: blur(20px);
  }
  .site-nav.open {
    display: flex;
  }
  .site-nav .nav-link {
    min-height: 52px;
    padding: 0 14px;
    justify-content: flex-start;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .header-tools {
    margin-left: auto;
  }
  .brand-logo .logo-mark {
    width: 36px;
    height: 36px;
  }
  .brand-logo > span:last-child {
    font-size: 1.05rem;
  }
  .btn-sm {
    min-height: 44px;
  }
  .hero-cta {
    display: none;
  }
  .hero-inner {
    display: block;
  }
  .crumb-path {
    margin-bottom: 18px;
  }
  .hero-title-block h1 {
    font-size: 2.25rem;
  }
  .hero-title-block p {
    font-size: .96rem;
  }
  .hero-aside {
    margin-top: 24px;
  }
  .guide-card,
  .guide-card.wide {
    grid-column: span 12;
    grid-template-columns: 1fr;
  }
  .guide-card .card-index {
    margin-bottom: 8px;
  }
  .duo-grid {
    grid-template-columns: 1fr;
  }
  .duo-card {
    padding: 24px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .section-head {
    align-items: flex-start;
    flex-direction: column;
  }
  .form-modal {
    max-width: calc(100vw - 28px);
    padding: 22px;
  }
  .faq-accordion .accordion-title {
    padding: 16px 18px;
    font-size: .95rem;
  }
  .faq-accordion .accordion-content {
    padding: 0 18px 18px 44px;
  }
  .cta-band {
    padding: 32px 24px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}
@media (max-width: 420px) {
  .brand-logo > span:last-child {
    font-size: .95rem;
  }
  .header-tools .btn-sm {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
    margin-right: 0;
  }
  .hero-title-block h1 {
    font-size: 2.05rem;
  }
  .section-head h2,
  .section-lead h2 {
    font-size: 1.6rem;
  }
}

/* roulang page: category2 */
:root{
  --bg-deep:#08101e;
  --bg-main:#0b1526;
  --bg-raise:#0f1f33;
  --panel:rgba(20,34,53,.58);
  --panel-strong:rgba(14,26,43,.78);
  --surface:rgba(255,255,255,.045);
  --surface-hover:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.09);
  --line-strong:rgba(255,255,255,.16);
  --text:#e8eef4;
  --muted:rgba(226,235,244,.74);
  --weak:rgba(218,228,238,.5);
  --accent:#38e1e8;
  --accent-600:#24c3cc;
  --gold:#c8a56b;
  --danger:#f28b82;
  --radius-lg:22px;
  --radius:15px;
  --radius-sm:9px;
  --shadow:0 22px 60px rgba(0,0,0,.28), 0 2px 10px rgba(255,255,255,.02);
  --font-ui:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei UI","Microsoft YaHei",sans-serif;
  --ease:cubic-bezier(.2,.8,.25,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;border:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-ui);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:
    radial-gradient(1200px 620px at 12% -5%,rgba(47,203,203,.14),transparent 60%),
    radial-gradient(880px 420px at 100% 8%,rgba(56,225,232,.07),transparent 55%),
    linear-gradient(180deg,var(--bg-deep),var(--bg-main) 28%,var(--bg-raise) 66%,#0a1322 100%);
  background-attachment:fixed;
  min-height:100vh;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{list-style:none}
button{font-family:inherit;cursor:pointer}
::selection{background:rgba(56,225,232,.3);color:#fff}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:4px}
.container{max-width:1260px;margin:0 auto;padding-inline:clamp(16px,3.4vw,36px)}

/* header */
.site-header{
  position:relative;
  z-index:60;
  background:linear-gradient(180deg,rgba(9,17,30,.92),rgba(10,20,34,.68));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.header-shell{
  max-width:1280px;
  margin:0 auto;
  min-height:76px;
  padding:10px clamp(16px,3vw,34px);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
  line-height:1.2;
  white-space:nowrap;
  color:#fff;
  padding:6px 0;
}
.logo-mark{
  background:linear-gradient(135deg,var(--accent),#27c2d0 76%);
  color:#07111e;
  padding:4px 9px 2px;
  border-radius:8px;
  font-weight:800;
  font-size:17px;
  letter-spacing:.01em;
  box-shadow:0 0 18px rgba(56,225,232,.32);
}
.site-nav{
  display:flex;
  align-items:center;
  gap:8px;
  margin-inline:auto;
}
.site-header .nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  gap:7px;
  padding:0 18px;
  border-radius:11px;
  background:transparent;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  transition:background .25s var(--ease),color .25s var(--ease),box-shadow .25s var(--ease);
}
.nav-hash{
  width:6px;
  height:6px;
  border-radius:2px;
  background:rgba(255,255,255,.24);
  transition:background .2s,box-shadow .2s;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.055)}
.nav-link:hover .nav-hash{background:var(--accent)}
.nav-link.active{
  color:#fff;
  background:rgba(56,225,232,.1);
  box-shadow:inset 0 0 0 1px rgba(56,225,232,.2);
  font-weight:600;
}
.nav-link.active .nav-hash{
  background:var(--accent);
  box-shadow:0 0 12px rgba(56,225,232,.7);
}
.header-tools{
  display:flex;
  align-items:center;
  gap:12px;
}
.header-cta{
  min-height:42px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:9px 20px;
  border-radius:11px;
  font-weight:600;
  font-size:15px;
  border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .22s var(--ease),background .2s var(--ease),border-color .2s;
  color:#fff;
  background:none;
  line-height:1.2;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{
  background:linear-gradient(135deg,#38e1e8,#23aebc);
  color:#06141e;
  box-shadow:0 8px 22px rgba(56,225,232,.18),inset 0 1px 0 rgba(255,255,255,.3);
}
.btn-primary:hover{box-shadow:0 10px 34px rgba(56,225,232,.3);background:linear-gradient(135deg,#45f0f5,#25becf)}
.btn-ghost{
  background:rgba(255,255,255,.02);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(6px);
}
.btn-ghost:hover{border-color:rgba(56,225,232,.5);background:rgba(56,225,232,.07);color:#fff}
.btn-sm{min-height:42px;padding:7px 15px;font-size:14px}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  background:transparent;
  border-radius:10px;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  border:1px solid var(--line);
}
.nav-toggle span{width:20px;height:2px;border-radius:2px;background:var(--text);display:block;transition:transform .2s}
.nav-toggle:hover{border-color:var(--accent)}
.site-header.is-nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.site-header.is-nav-open .nav-toggle span:nth-child(2){opacity:0}
.site-header.is-nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* inner hero */
.inner-hero{
  position:relative;
  padding:88px 0 66px;
  background:
    linear-gradient(180deg,rgba(7,14,25,.78) 0%,rgba(7,14,25,.56) 62%,rgba(9,18,31,.94) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat, #0a1624;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:7px;
  font-size:13px;
  color:var(--weak);
  margin-bottom:24px;
}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:var(--accent)}
.crumb-icon{opacity:.65}
.inner-hero h1{
  font-size:clamp(2.25rem,4.2vw,3.8rem);
  line-height:1.18;
  letter-spacing:.01em;
  font-weight:800;
  max-width:920px;
  margin-bottom:18px;
}
.h1-accent{
  color:var(--accent);
  position:relative;
}
.hero-mark{
  display:inline-block;
  vertical-align:middle;
  width:10px;height:10px;border-radius:50%;
  background:var(--gold);
  margin-left:9px;
  box-shadow:0 0 16px rgba(200,165,107,.45);
}
.hero-lead{
  max-width:780px;
  font-size:clamp(16px,1.5vw,19px);
  color:var(--muted);
  line-height:1.85;
  margin-bottom:30px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:13px;
  align-items:center;
}
.hero-note{
  display:flex;
  align-items:center;
  gap:7px;
  color:var(--weak);
  font-size:13px;
  margin-top:26px;
}
.hero-note svg{flex:none}

/* section generic */
.section-block{padding:clamp(58px,7vw,104px) 0;position:relative}
.section-block.white{background:rgba(255,255,255,.02);border-bottom:1px solid var(--line)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:13px;
  color:var(--accent);
  font-weight:600;
  letter-spacing:.08em;
  text-transform:uppercase;
  margin-bottom:13px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:rgba(56,225,232,.7)}
.section-title{
  font-size:clamp(1.7rem,2.5vw,2.4rem);
  line-height:1.3;
  font-weight:800;
  letter-spacing:-.01em;
  max-width:820px;
  margin-bottom:10px;
}
.section-sub{
  color:var(--muted);
  margin-top:8px;
  max-width:760px;
  margin-bottom:28px;
}

/* split support layout */
.support-split{
  display:grid;
  grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);
  gap:clamp(24px,4vw,58px);
  align-items:start;
}
.support-note{
  backdrop-filter:blur(12px);
  background:linear-gradient(155deg,rgba(36,56,81,.34),rgba(15,28,46,.3));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:clamp(22px,3vw,36px);
  box-shadow:var(--shadow);
  position:sticky;
  top:96px;
}
.support-note h2,
.faq-title h2,
.cta-title,
.process-title h2{
  font-size:clamp(1.45rem,2vw,2rem);
  font-weight:800;
  line-height:1.35;
  margin-bottom:14px;
}
.support-note p{
  color:var(--muted);
  margin-bottom:20px;
  font-size:15px;
}
.point-list{
  display:grid;
  gap:13px;
  margin:4px 0 22px;
}
.point-list li{
  position:relative;
  padding-left:28px;
  color:rgba(232,238,244,.86);
  font-size:15px;
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.68em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 12px rgba(56,225,232,.7);
}
.card-cover-pic{
  overflow:hidden;
  background:var(--surface);
  border-radius:var(--radius);
  border:1px solid var(--line);
  margin-top:18px;
}
.card-cover-pic img{
  width:100%;
  height:130px;
  object-fit:cover;
  opacity:.86;
}
.support-cards{
  display:grid;
  gap:18px;
}
.support-card{
  display:grid;
  grid-template-columns:auto 1fr;
  gap:15px;
  background:linear-gradient(150deg,rgba(255,255,255,.06),rgba(255,255,255,.025));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:19px 20px 17px;
  align-items:start;
  transition:background .25s,border-color .25s,box-shadow .25s,translate .2s;
}
.support-card:hover{background:var(--surface-hover);border-color:rgba(56,225,232,.3);box-shadow:0 13px 28px rgba(0,0,0,.18)}
.card-icon{
  width:40px;height:40px;
  border-radius:11px;
  display:flex;
  align-items:center;justify-content:center;
  color:#06141e;
  background:linear-gradient(135deg,#38e1e8,#b9f8f9);
  box-shadow:0 0 14px rgba(56,225,232,.28);
  flex:none;
}
.card-icon.gold{background:linear-gradient(135deg,#d8b57b,#a9864d);color:#1a150e}
.card-icon.blue{background:linear-gradient(135deg,#8de1ff,#4ba5d7);color:#081b2e}
.support-card h3{font-size:17px;font-weight:700;line-height:1.4;margin-bottom:6px}
.support-card p{font-size:14px;color:var(--muted);line-height:1.78}
.support-more{
  grid-column:1 / -1;
  display:inline-flex;
  align-items:center;
  gap:5px;
  color:var(--accent);
  font-size:14px;
  font-weight:500;
  margin-top:7px;
}
.support-more svg{transition:transform .2s}
.support-more:hover svg{transform:translateX(4px)}

/* flow result */
.flow-wrap{
  padding:44px 0; 
}
.process-title{
  margin-bottom:50px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  align-items:end;
  gap:20px;
}
.process-title p{max-width:590px;color:var(--muted)}
.process-title h2{font-size:clamp(1.6rem,2.4vw,2.2rem)}
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.flow-step{
  position:relative;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px 22px 23px;
  overflow:hidden;
  transition:transform .23s var(--ease),border-color .23s,background .23s;
  min-height:190px;
}
.flow-step:hover{transform:translateY(-4px);border-color:rgba(56,225,232,.35);background:rgba(56,225,232,.055)}
.flow-num{
  font-size:3.5rem;
  line-height:1;
  color:transparent;
  -webkit-text-stroke:1px rgba(56,225,232,.5);
  font-weight:800;
  margin-bottom:15px;
  letter-spacing:-.03em;
}
.flow-step h3{font-size:16px;font-weight:700;margin-bottom:7px}
.flow-step p{font-size:14px;color:var(--muted);font-size:14px;line-height:1.75}
@media(max-width:1023px){
  .flow-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .flow-grid{grid-template-columns:1fr}
}

/* scope two cards */
.scope-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
}
.scope-card{
  background:linear-gradient(155deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:clamp(20px,3vw,33px);
  position:relative;
  overflow:hidden;
}
.scope-card::after{
  content:"";
  position:absolute;
  right:-18px;top:-36px;
  width:120px;height:120px;
  background:radial-gradient(circle,rgba(56,225,232,.08),transparent 68%);
  pointer-events:none;
}
.scope-card.warn::after{background:radial-gradient(circle,rgba(200,165,107,.12),transparent 70%)}
.scope-title{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.1rem;
  font-weight:700;
  margin-bottom:13px;
  color:var(--text);
}
.scope-badge{
  width:26px;height:26px;
  border-radius:8px;
  background:rgba(56,225,232,.12);
  color:var(--accent);
  display:inline-flex;
  align-items:center;justify-content:center;
}
.warn .scope-badge{background:rgba(200,165,107,.12);color:var(--gold)}
.scope-list{display:grid;gap:8px}
.scope-list li{
  position:relative;
  padding-left:20px;
  color:var(--muted);
  font-size:15px;
  line-height:1.7;
}
.scope-list li::before{content:"•";position:absolute;left:5px;color:var(--accent)}
.warn .scope-list li::before{color:var(--gold)}

/* FAQ */
.faq-area{background:rgba(124,159,195,.035);border-bottom:1px solid var(--line)}
.faq-header{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:36px;
  gap:20px;
}
.faq-title h2{margin-bottom:0}
.faq-title p{max-width:600px;color:var(--muted);font-size:15px;margin-top:8px}
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:10px}
.faq-item{
  border:1px solid var(--line);
  border-radius:14px;
  background:rgba(255,255,255,.035);
  overflow:hidden;
  transition:border-color .23s,background .23s;
}
.faq-item:hover{border-color:rgba(56,225,232,.24);background:rgba(255,255,255,.05)}
.faq-q{
  width:100%;
  min-height:60px;
  padding:13px 52px 13px 20px;
  background:rgba(255,255,255,.01);
  border-radius:14px;
  font-size:15px;
  font-weight:650;
  color:var(--text);
  text-align:left;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.faq-icon{
  position:relative;
  width:26px;height:26px;
  flex:none;
  border-radius:8px;
  background:rgba(56,225,232,.14);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;top:50%;
  background:var(--accent);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:opacity .25s;
}
.faq-icon::before{width:10px;height:2px}
.faq-icon::after{width:2px;height:10px}
.faq-item.open .faq-icon::after{opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s var(--ease);
}
.faq-a-inner{padding:0 22px 21px;color:var(--muted);font-size:15px;line-height:1.85;border-top:1px dashed rgba(255,255,255,.08);padding-top:18px}
.faq-more{text-align:center;margin-top:34px}

/* cta band */
.cta-band{
  position:relative;
  overflow:hidden;
  background:
    linear-gradient(105deg,rgba(8,18,31,.94),rgba(16,34,52,.6)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat,
    #081521;
  border-block:1px solid var(--line);
}
.cta-inner{
  padding:84px 0;
  text-align:center;
  max-width:800px;
  margin:0 auto;
}
.cta-inner h2{font-size:clamp(1.7rem,2.6vw,2.4rem);font-weight:800;line-height:1.36;margin-bottom:13px;color:#fff}
.cta-inner p{color:var(--muted);font-size:15px;margin-bottom:24px}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:13px}
.cta-note{color:var(--weak);font-size:13px;margin-top:26px;display:flex;justify-content:center;gap:6px;flex-wrap:wrap}

/* footer */
.site-footer{
  background:#050b15;
  border-top:1px solid rgba(255,255,255,.06);
  padding:64px 0 22px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.1fr .6fr .9fr;
  gap:34px;
  margin-bottom:34px;
}
.footer-brand .brand-logo{font-size:18px}
.footer-brand p{
  color:var(--muted);
  font-size:14px;
  margin:12px 0 0;
  max-width:340px;
  line-height:1.8;
}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:15px;letter-spacing:.02em}
.footer-nav{display:grid;gap:7px}
.footer-nav a{color:var(--muted);font-size:14px;width:fit-content;min-height:28px;transition:color .2s}
.footer-nav a:hover{color:var(--accent)}
.footer-meta{display:grid;gap:11px}
.footer-meta span{display:flex;gap:8px;align-items:flex-start;color:var(--weak);font-size:13px;line-height:1.6}
.footer-meta svg{flex:none;color:var(--accent);margin-top:3px}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:9px;
  border-top:1px solid rgba(255,255,255,.07);
  padding-top:20px;
  color:rgba(255,255,255,.38);
  font-size:13px;
}
.footer-bottom .brand-domain{color:rgba(255,255,255,.65)}

/* reveal modal */
.reveal-overlay{
  background:rgba(4,10,18,.72);
  backdrop-filter:blur(7px);
  -webkit-backdrop-filter:blur(7px);
}
.reveal.custom-reveal{
  border:none;
  background:linear-gradient(155deg,rgba(29,47,71,.92),rgba(8,16,30,.96));
  border-radius:18px;
  box-shadow:0 40px 110px rgba(0,0,0,.55),inset 0 1px 0 rgba(255,255,255,.09);
  color:var(--text);
  max-width:600px;
  padding:34px 26px 28px !important;
}
.custom-reveal h3{font-size:23px;font-weight:800;margin-bottom:7px}
.custom-reveal .modal-sub{font-size:14px;color:var(--muted);margin-bottom:22px}
.form-grid{display:grid;gap:14px;margin-bottom:19px}
.form-group{display:grid;gap:6px}
.form-group label{font-size:14px;font-weight:600}
.form-group label small{color:var(--weak);font-weight:400}
.form-group input,.form-group textarea,.form-group select{
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.12);
  color:var(--text);
  height:48px;
  padding:0 15px;
  border-radius:10px;
  font-size:15px;
  transition:border-color .2s,box-shadow .2s;
}
.form-group input:focus,.form-group textarea:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(56,225,232,.13);
  outline:none;
  background:rgba(255,255,255,.07);
}
.form-group textarea{min-height:92px;padding-top:11px}
.privacy-link{
  background:none;
  color:rgba(56,225,232,.9);
  font-size:13px;
  display:inline-flex;
  align-items:center;
  gap:5px;
  min-height:28px;
  padding:0;
  border-bottom:1px dashed rgba(56,225,232,.3);
}
.privacy-note{
  font-size:12px;
  color:rgba(255,255,255,.42);
  line-height:1.8;
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
  border-top:none;
}
.privacy-note.show{max-height:240px;padding-top:12px;border-top:1px solid rgba(255,255,255,.08);margin-top:5px;overflow-y:auto}
.reveal-btns{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin-top:17px}
.modal-close{
  background:transparent;
  border:1px solid rgba(255,255,255,.12);
  color:var(--muted);
}

/* mobile */
@media(max-width:1150px){
  .site-nav{gap:3px}
  .header-shell .nav-link{padding:0 12px;font-size:14px}
  .footer-grid{grid-template-columns:1fr .5fr .9fr}
}
@media(max-width:900px){
  .nav-toggle{display:flex}
  .site-nav{
    position:fixed;
    top:74px;
    right:14px;
    width:min(325px,88vw);
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    background:rgba(7,15,27,.97);
    border:1px solid var(--line-strong);
    border-radius:16px;
    padding:13px;
    box-shadow:0 18px 45px rgba(0,0,0,.48);
    z-index:90;
    backdrop-filter:blur(18px);
  }
  .site-header.is-nav-open .site-nav{display:flex}
  .site-nav .nav-link{padding:11px 14px;font-size:15px;border-radius:11px;border:1px solid transparent}
  .header-tools a.header-cta{display:none}
  .header-tools .nav-toggle{display:flex}
  .support-split{grid-template-columns:1fr;gap:28px}
  .support-note{position:static;top:auto}
  .scope-grid{grid-template-columns:1fr;gap:15px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-brand p{max-width:100%}
}

@media(max-width:767px){
  .inner-hero{padding:64px 0 52px}
  .inner-hero h1{font-size:2.08rem}
  .section-block{padding:50px 0}
  .flow-grid{grid-template-columns:1fr;gap:12px}
  .hero-actions .btn{width:100%;min-height:48px}
}
@media(max-width:520px){
  body{font-size:15px;line-height:1.8}
  .site-header .btn-sm{font-size:13px}
  .nav-toggle{width:42px;height:42px}
  .header-cta.btn-sm{height:42px}
  .custom-reveal{padding:25px 17px 22px !important}
}