/* roulang page: index */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #0E5C4F;
  --color-primary-bright: #2A9D8F;
  --gradient-brand: linear-gradient(135deg, #0E5C4F 0%, #2A9D8F 100%);
  --color-accent: #C9A227;
  --color-accent-hover: #A9861F;
  --color-bg: #F7F4EF;
  --color-surface: #FFFFFF;
  --color-ink: #1F2933;
  --color-ink-secondary: #5B6770;
  --color-border: #E7DFD3;
  --color-dark-bg: #0B2B26;
  --color-success: #2E7D63;
  --color-danger: #B4433A;
  --color-info: #3B6E8F;
  --radius-card: 20px;
  --radius-btn: 12px;
  --radius-input: 12px;
  --shadow-card: 0 8px 30px rgba(14, 92, 79, 0.08);
  --shadow-card-hover: 0 16px 40px rgba(14, 92, 79, 0.16);
  --shadow-nav: 0 2px 12px rgba(11, 43, 38, 0.06);
  --shadow-float: 0 12px 32px rgba(201, 162, 39, 0.32);
  --font-sans: "PingFang SC", "Microsoft YaHei", "-apple-system", "Segoe UI", "Roboto", sans-serif;
  --font-num: "DIN Alternate", "Barlow Condensed", "Roboto Mono", sans-serif;
  --spacing-section: 96px;
  --spacing-card: 32px;
  --container-max: 1200px;
}

/* ===== 基础 Reset ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color 0.2s ease; }
a:hover { color: var(--color-accent-hover); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; line-height: inherit; }
button { cursor: pointer; border: none; background: none; }
:focus-visible { outline: 3px solid rgba(201,162,39,.5); outline-offset: 2px; border-radius: 4px; }
.container { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--spacing-section) 0; }
.section-header { text-align: center; max-width: 640px; margin: 0 auto 56px; }
.section-title { font-size: 34px; font-weight: 800; letter-spacing: -0.02em; color: var(--color-ink); margin-bottom: 12px; }
.section-subtitle { font-size: 16px; color: var(--color-ink-secondary); line-height: 1.6; }

/* ===== 按钮 ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius-btn); font-weight: 600;
  font-size: 15px; transition: all 0.2s ease; border: 1px solid transparent;
  min-height: 44px; min-width: 120px;
}
.btn-primary { background: var(--gradient-brand); color: #fff; box-shadow: 0 4px 16px rgba(14,92,79,.25); }
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.05); color: #fff; box-shadow: 0 8px 24px rgba(14,92,79,.3); }
.btn-primary:active { transform: translateY(0); }
.btn-outline { background: transparent; border: 1px solid var(--color-primary); color: var(--color-primary); }
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent-hover); transform: translateY(-2px); }
.btn-accent { background: linear-gradient(135deg, #C9A227, #D4B233); color: #fff; box-shadow: 0 4px 12px rgba(201,162,39,.3); }
.btn-accent:hover { transform: translateY(-2px); filter: brightness(.97); color: #fff; }
.btn-block { display: flex; width: 100%; }
.btn-small { padding: 8px 18px; font-size: 14px; min-height: 38px; min-width: auto; }

/* ===== Header ===== */
.site-header {
  width: 100%;
  background: rgba(247,244,239,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  position: relative;
  z-index: 100;
}
.site-header.sticky {
  position: fixed; top: 0; left: 0; right: 0;
  box-shadow: var(--shadow-nav);
  animation: slideDown .3s ease;
}
@keyframes slideDown { from { transform: translateY(-100%);} to { transform: translateY(0);} }
.header-top { height: 56px; border-bottom: 1px solid rgba(231,223,211,.6); }
.header-top-inner { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-icon {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--gradient-brand); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 20px;
  box-shadow: 0 4px 12px rgba(14,92,79,.3);
}
.logo-text { font-size: 20px; font-weight: 800; color: var(--color-primary); letter-spacing: -0.01em; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-actions .link-help { color: var(--color-ink-secondary); font-size: 14px; font-weight: 500; padding: 8px 12px; border-radius: 8px; transition: all .2s; }
.header-actions .link-help:hover { color: var(--color-primary); background: rgba(14,92,79,.06); }
.header-nav { height: 44px; background: rgba(247,244,239,.95); }
.nav-inner { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav-list { display: flex; align-items: center; gap: 4px; height: 100%; }
.nav-list a {
  display: inline-flex; align-items: center; height: 100%;
  padding: 0 16px; font-size: 15px; font-weight: 600;
  color: var(--color-ink-secondary);
  border-radius: 0; position: relative;
  transition: color .2s;
}
.nav-list a:hover { color: var(--color-primary); }
.nav-list a.active { color: var(--color-primary); }
.nav-list a.active::after { content: ''; position: absolute; bottom: 0; left: 12px; right: 12px; height: 3px; background: var(--color-accent); border-radius: 3px 3px 0 0; }
.nav-search { display: flex; align-items: center; gap: 8px; position: relative; }
.nav-search form { display: flex; align-items: center; gap: 8px; }
.nav-search input {
  padding: 7px 14px 7px 36px; border-radius: 999px;
  border: 1px solid var(--color-border); background: #fff;
  font-size: 14px; width: 200px; transition: all .2s;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%235B6770' stroke-width='2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m21 21-4.35-4.35'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: 12px center;
}
.nav-search input:focus { border-color: var(--color-accent); box-shadow: 0 0 0 4px rgba(201,162,39,.15); outline: none; }
.nav-search button { background: var(--gradient-brand); color: #fff; padding: 7px 16px; border-radius: 999px; font-size: 14px; font-weight: 600; transition: all .2s; }
.nav-search button:hover { filter: brightness(1.05); }
.nav-trend { display: flex; align-items: center; gap: 6px; }
.nav-trend a { font-size: 13px; color: var(--color-ink-secondary); background: #fff; border: 1px solid var(--color-border); border-radius: 999px; padding: 4px 10px; transition: all .2s; }
.nav-trend a:hover { border-color: var(--color-accent); color: var(--color-accent-hover); }
.mobile-menu-toggle { display: none; width: 44px; height: 44px; border-radius: 8px; align-items: center; justify-content: center; font-size: 22px; color: var(--color-primary); }

/* ===== Hero ===== */
.hero {
  position: relative;
  background: linear-gradient(135deg, #0E5C4F 0%, #1A7A6A 40%, #2A9D8F 100%);
  padding: 80px 0 100px;
  overflow: hidden;
  color: #fff;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image: url(/assets/images/backpic/back-1.webp);
  background-size: cover; background-position: center;
  opacity: .18; mix-blend-mode: overlay;
}
.hero::after {
  content: ''; position: absolute; top: -40%; right: -20%;
  width: 550px; height: 550px; border-radius: 50%;
  background: rgba(201,162,39,.12);
  filter: blur(60px);
}
.hero-inner { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; position: relative; z-index: 2; }
.hero-content { max-width: 560px; }
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,.12); border: 1px solid rgba(255,255,255,.22);
  border-radius: 999px; padding: 6px 16px; font-size: 13px; font-weight: 500;
  color: rgba(255,255,255,.9); margin-bottom: 24px;
  backdrop-filter: blur(8px);
}
.hero-badge i { color: var(--color-accent); }
.hero-title { font-size: 44px; font-weight: 800; line-height: 1.25; letter-spacing: -0.02em; margin-bottom: 16px; }
.hero-title .accent { color: var(--color-accent); }
.hero-subtitle { font-size: 18px; line-height: 1.7; color: rgba(255,255,255,.85); margin-bottom: 32px; max-width: 460px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 24px; margin-top: 36px; flex-wrap: wrap; }
.hero-trust-item { display: flex; align-items: center; gap: 8px; font-size: 14px; color: rgba(255,255,255,.75); }
.hero-trust-item i { color: var(--color-accent); }
.hero-image { position: relative; }
.hero-image-wrap {
  position: relative; border-radius: 24px; overflow: hidden;
  box-shadow: 0 30px 60px rgba(11,43,38,.3);
  border: 1px solid rgba(255,255,255,.15);
}
.hero-image-wrap img { width: 100%; aspect-ratio: 4/3; object-fit: cover; }
.hero-image-wrap::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, transparent 50%, rgba(11,43,38,.3)); }
.hero-float {
  position: absolute; bottom: 24px; left: -20px; z-index: 3;
  background: rgba(255,255,255,.95); border-radius: 16px;
  padding: 16px 20px; box-shadow: 0 16px 40px rgba(11,43,38,.25);
  display: flex; align-items: center; gap: 12px;
  backdrop-filter: blur(8px);
}
.hero-float-icon { width: 40px; height: 40px; border-radius: 12px; background: var(--gradient-brand); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 18px; }
.hero-float-text b { display: block; font-size: 15px; color: var(--color-ink); }
.hero-float-text span { font-size: 12px; color: var(--color-ink-secondary); }

/* ===== Features ===== */
.features { background: var(--color-bg); }
.feature-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 24px; }
.feature-card {
  background: var(--color-surface); border-radius: var(--radius-card);
  padding: 32px 40px; display: grid; grid-template-columns: 80px 1fr;
  gap: 28px; align-items: center;
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-card);
  transition: all .2s ease;
  position: relative;
  overflow: hidden;
}
.feature-card::after { content: ''; position: absolute; top: 0; right: 0; width: 160px; height: 160px; background: radial-gradient(circle, rgba(201,162,39,.06), transparent); border-radius: 50%; }
.feature-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.feature-card:nth-child(even) { margin-left: 60px; }
.feature-card:nth-child(odd) { margin-right: 60px; }
.feature-num { font-family: var(--font-num); font-size: 56px; font-weight: 800; line-height: 1; color: var(--color-accent); opacity: .9; }
.feature-content h3 { font-size: 20px; font-weight: 700; margin-bottom: 8px; color: var(--color-ink); }
.feature-content p { font-size: 15px; color: var(--color-ink-secondary); line-height: 1.65; }

/* ===== Demo ===== */
.demo { background: var(--color-surface); }
.demo-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; margin-bottom: 56px; position: relative; }
.demo-steps::before { content: ''; position: absolute; top: 40px; left: 8%; right: 8%; height: 2px; border-top: 2px dashed var(--color-border); z-index: 0; }
.demo-step { text-align: center; padding: 32px 16px; position: relative; z-index: 1; }
.demo-step-icon {
  width: 80px; height: 80px; margin: 0 auto 20px;
  background: var(--gradient-brand); color: #fff;
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: 28px; box-shadow: 0 8px 24px rgba(14,92,79,.25);
  position: relative;
}
.demo-step-icon::after { content: ''; position: absolute; inset: -6px; border-radius: 50%; border: 2px solid rgba(201,162,39,.4); }
.demo-step h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--color-ink); }
.demo-step p { font-size: 14px; color: var(--color-ink-secondary); line-height: 1.5; }
.demo-media {
  border-radius: 20px; overflow: hidden; position: relative;
  box-shadow: 0 20px 50px rgba(14,92,79,.15);
}
.demo-media img { width: 100%; aspect-ratio: 16/9; object-fit: cover; }
.demo-media-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(11,43,38,.6));
  display: flex; align-items: flex-end; justify-content: center; padding: 24px; gap: 16px;
}

/* ===== Proof ===== */
.proof { background: var(--color-bg); }
.proof-inner {
  background: linear-gradient(135deg, #0B2B26 0%, #143D35 100%);
  border-radius: 24px; padding: 48px;
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px;
  align-items: center; color: #fff;
  box-shadow: 0 20px 60px rgba(11,43,38,.35);
}
.proof-left h2 { font-size: 30px; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.02em; }
.proof-left p { font-size: 15px; line-height: 1.7; color: rgba(255,255,255,.8); margin-bottom: 32px; }
.proof-badges { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.badge-card {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  border-radius: 16px; padding: 20px 24px; text-align: center;
  backdrop-filter: blur(4px); transition: all .2s;
}
.badge-card:hover { border-color: rgba(201,162,39,.5); }
.badge-num {
  font-family: var(--font-num); font-size: 40px; font-weight: 800;
  background: linear-gradient(135deg, #E8C74D, #C9A227);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text; display: block; line-height: 1.1;
}
.badge-label { font-size: 14px; color: rgba(255,255,255,.7); margin-top: 4px; }
.proof-right { position: relative; }
.proof-right img { width: 100%; border-radius: 16px; box-shadow: 0 16px 40px rgba(0,0,0,.4); }

/* ===== News ===== */
.news { background: var(--color-surface); }
.news .section-header { display: flex; align-items: flex-end; justify-content: space-between; max-width: none; text-align: left; margin-bottom: 40px; }
.news .section-header .section-title { margin-bottom: 0; }
.news-link { font-size: 14px; font-weight: 600; color: var(--color-primary); display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border: 1px solid var(--color-border); border-radius: 999px; transition: all .2s; }
.news-link:hover { border-color: var(--color-accent); color: var(--color-accent-hover); }
.news-list { display: flex; flex-direction: column; gap: 16px; }
.news-card {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 16px; padding: 20px 24px;
  display: grid; grid-template-columns: 72px 1fr 200px;
  gap: 20px; align-items: center;
  transition: all .2s ease;
}
.news-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-2px); border-color: rgba(201,162,39,.4); }
.news-date {
  width: 68px; height: 68px; border-radius: 14px;
  background: var(--color-bg); border: 1px solid var(--color-border);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  color: var(--color-primary);
}
.news-date .news-day { font-family: var(--font-num); font-size: 24px; font-weight: 800; line-height: 1; }
.news-date .news-month { font-size: 13px; color: var(--color-ink-secondary); margin-top: 2px; }
.news-content h4 { font-size: 18px; font-weight: 600; color: var(--color-ink); margin-bottom: 4px; line-height: 1.4; }
.news-content h4 a { color: inherit; }
.news-content h4 a:hover { color: var(--color-accent-hover); }
.news-content p { font-size: 14px; color: var(--color-ink-secondary); line-height: 1.6; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-cat { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--color-primary); background: rgba(14,92,79,.08); padding: 4px 12px; border-radius: 999px; font-weight: 500; }
.news-arrow { color: var(--color-accent); font-size: 20px; text-align: center; }
.empty-state {
  border: 2px dashed var(--color-border); border-radius: 16px;
  padding: 40px; text-align: center; color: var(--color-ink-secondary);
  background: var(--color-bg);
}
.empty-state i { font-size: 40px; color: var(--color-border); margin-bottom: 12px; display: block; }
.empty-state p { font-size: 15px; }

/* ===== Pricing ===== */
.pricing { background: var(--color-bg); }
.pricing-grid {
  display: grid; grid-template-columns: 3fr 5fr 3fr;
  gap: 24px; align-items: center; max-width: 1000px; margin: 0 auto;
}
.pricing-card {
  background: var(--color-surface); border-radius: var(--radius-card);
  border: 1px solid var(--color-border);
  padding: 32px; text-align: center;
  box-shadow: var(--shadow-card);
  transition: all .2s ease;
}
.pricing-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.pricing-featured {
  background: linear-gradient(145deg, #0E5C4F, #1A7A6A);
  color: #fff; transform: scale(1.05);
  box-shadow: 0 20px 50px rgba(14,92,79,.35);
  border: none; z-index: 2;
}
.pricing-featured:hover { transform: scale(1.05) translateY(-4px); }
.pricing-name { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.pricing-featured .pricing-name { color: #fff; }
.pricing-price { font-family: var(--font-num); font-size: 36px; font-weight: 800; line-height: 1.2; margin-bottom: 20px; color: var(--color-primary); }
.pricing-featured .pricing-price { color: var(--color-accent); }
.pricing-price span { font-size: 14px; font-weight: 400; color: var(--color-ink-secondary); }
.pricing-featured .pricing-price span { color: rgba(255,255,255,.7); }
.pricing-features { margin-bottom: 24px; text-align: left; }
.pricing-features li { font-size: 14px; padding: 6px 0; color: var(--color-ink-secondary); display: flex; align-items: center; gap: 8px; }
.pricing-featured .pricing-features li { color: rgba(255,255,255,.8); }
.pricing-features li i { color: var(--color-accent); font-size: 12px; }
.pricing-featured .pricing-features li i { color: var(--color-accent); }

/* ===== FAQ ===== */
.faq { background: var(--color-surface); }
.faq-inner { display: grid; grid-template-columns: 1fr 1.4fr; gap: 48px; max-width: 1000px; margin: 0 auto; }
.faq-left h2 { font-size: 30px; font-weight: 800; margin-bottom: 16px; letter-spacing: -0.02em; }
.faq-left p { font-size: 15px; color: var(--color-ink-secondary); line-height: 1.7; margin-bottom: 24px; }
.faq-tip { display: inline-flex; align-items: center; gap: 8px; background: rgba(14,92,79,.06); color: var(--color-primary); padding: 8px 16px; border-radius: 999px; font-size: 14px; font-weight: 500; }
.faq-tip i { color: var(--color-accent); }
.faq-list { display: flex; flex-direction: column; gap: 8px; }
.faq-item { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: 16px; padding: 8px 20px; transition: all .2s; }
.faq-item.open { border-color: rgba(201,162,39,.4); box-shadow: var(--shadow-card); }
.faq-question { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 0; font-size: 16px; font-weight: 600; color: var(--color-ink); cursor: pointer; }
.faq-toggle { font-size: 22px; font-weight: 400; color: var(--color-accent); transition: transform .3s ease; width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; border-radius: 50%; }
.faq-item.open .faq-toggle { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-answer p { font-size: 14px; color: var(--color-ink-secondary); line-height: 1.7; padding-bottom: 16px; }

/* ===== Contact ===== */
.contact { background: var(--color-bg); }
.contact-card {
  background: var(--color-surface); border-radius: 20px;
  border: 1px solid rgba(201,162,39,.4);
  box-shadow: 0 16px 40px rgba(14,92,79,.08);
  max-width: 620px; margin: 0 auto; padding: 40px;
  text-align: center;
}
.contact-card h2 { font-size: 28px; font-weight: 800; margin-bottom: 8px; }
.contact-card .contact-desc { font-size: 15px; color: var(--color-ink-secondary); margin-bottom: 28px; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-group { text-align: left; }
.form-label { font-size: 14px; font-weight: 600; color: var(--color-ink); margin-bottom: 6px; display: block; }
.form-input, .form-select {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--color-border); border-radius: var(--radius-input);
  background: #fff; font-size: 15px; color: var(--color-ink);
  transition: all .2s;
}
.form-input:focus, .form-select:focus { border-color: var(--color-accent); box-shadow: 0 0 0 4px rgba(201,162,39,.15); outline: none; }
.form-select { appearance: auto; }
.form-feedback { display: none; padding: 12px 16px; border-radius: 12px; font-size: 14px; text-align: left; }
.form-feedback.success { background: rgba(46,125,99,.1); color: var(--color-success); border: 1px solid rgba(46,125,99,.3); }
.form-feedback.error { background: rgba(180,67,58,.1); color: var(--color-danger); border: 1px solid rgba(180,67,58,.3); }
.form-feedback.show { display: block; }

/* ===== Footer ===== */
.site-footer { background: var(--color-dark-bg); color: rgba(255,255,255,.7); padding-top: 64px; }
.footer-inner { max-width: var(--container-max); margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 40px; }
.footer-col .logo { margin-bottom: 16px; }
.footer-col .logo-text { color: #fff; }
.footer-col .logo-icon { background: var(--color-accent); }
.footer-desc { font-size: 14px; line-height: 1.7; max-width: 280px; }
.footer-col h3 { font-size: 16px; color: #fff; font-weight: 700; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 8px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.6); transition: color .2s; }
.footer-links a:hover { color: var(--color-accent); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 20px 0; text-align: center;
  font-size: 13px; color: rgba(255,255,255,.45);
}
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer-bottom a { color: rgba(255,255,255,.6); }

/* ===== Float CTA ===== */
.float-cta {
  position: fixed; right: 28px; bottom: 28px; z-index: 999;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
  opacity: 0; visibility: hidden; transform: translateY(20px);
  transition: all .3s ease;
}
.float-cta.show { opacity: 1; visibility: visible; transform: translateY(0); }
.float-cta-menu { display: flex; flex-direction: column; gap: 8px; transform: scale(.9); transform-origin: bottom center; transition: all .2s ease; opacity: 0; pointer-events: none; }
.float-cta-menu.show { transform: scale(1); opacity: 1; pointer-events: auto; }
.float-cta-item {
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: 12px; padding: 10px 18px; font-size: 14px; font-weight: 600;
  color: var(--color-primary); display: flex; align-items: center; gap: 8px;
  box-shadow: var(--shadow-card); transition: all .2s;
  white-space: nowrap;
}
.float-cta-item:hover { border-color: var(--color-accent); color: var(--color-accent-hover); transform: translateY(-2px); }
.float-cta-item i { color: var(--color-accent); }
.float-cta-btn {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--gradient-brand); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 24px; box-shadow: var(--shadow-float);
  transition: all .2s; border: 2px solid rgba(255,255,255,.3);
}
.float-cta-btn:hover { transform: scale(1.08); }
.float-cta-btn i { color: var(--color-accent); }

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .hero-title { font-size: 36px; }
  .hero-inner { grid-template-columns: 1fr; text-align: center; gap: 32px; }
  .hero-content { margin: 0 auto; }
  .hero-actions { justify-content: center; }
  .hero-trust { justify-content: center; }
  .hero-float { left: 50%; transform: translateX(-50%); }
  .feature-card:nth-child(even) { margin-left: 0; }
  .feature-card:nth-child(odd) { margin-right: 0; }
  .proof-inner { grid-template-columns: 1fr; padding: 32px; }
  .faq-inner { grid-template-columns: 1fr; gap: 32px; }
  .news .section-header { flex-direction: column; align-items: flex-start; gap: 16px; }
  .news-card { grid-template-columns: 64px 1fr; }
  .news-arrow { display: none; }
  .pricing-grid { grid-template-columns: 1fr; max-width: 480px; gap: 20px; }
  .pricing-featured { transform: none; }
  .pricing-featured:hover { transform: translateY(-4px); }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  :root { --spacing-section: 56px; }
  .container { padding: 0 16px; }
  .header-actions .link-help { display: none; }
  .header-nav { position: fixed; top: 56px; left: 0; right: 0; height: auto; background: rgba(247,244,239,.98); box-shadow: var(--shadow-nav); transform: translateY(-120%); transition: transform .3s ease; z-index: 99; }
  .header-nav.open { transform: translateY(0); }
  .nav-inner { flex-direction: column; padding: 12px 16px; align-items: stretch; gap: 12px; }
  .nav-list { flex-direction: column; align-items: stretch; height: auto; gap: 0; }
  .nav-list a { height: 48px; padding: 0 12px; border-radius: 8px; }
  .nav-list a.active::after { display: none; }
  .nav-list a.active { background: rgba(14,92,79,.08); }
  .nav-search form { width: 100%; }
  .nav-search input { flex: 1; width: auto; }
  .mobile-menu-toggle { display: flex; }
  .hero { padding: 56px 0 64px; }
  .hero-title { font-size: 30px; }
  .hero-subtitle { font-size: 16px; }
  .hero-actions .btn { flex: 1; }
  .feature-card { grid-template-columns: 1fr; gap: 16px; padding: 24px; }
  .feature-num { font-size: 40px; }
  .demo-steps { grid-template-columns: 1fr; gap: 16px; }
  .demo-steps::before { display: none; }
  .demo-step { text-align: left; display: flex; gap: 16px; align-items: flex-start; padding: 16px; }
  .demo-step-icon { margin: 0; width: 60px; height: 60px; font-size: 22px; flex-shrink: 0; }
  .proof-badges { grid-template-columns: 1fr 1fr; gap: 12px; }
  .badge-num { font-size: 32px; }
  .news-card { grid-template-columns: 1fr; gap: 12px; padding: 16px; }
  .news-date { flex-direction: row; width: auto; height: auto; padding: 6px 12px; gap: 6px; border-radius: 999px; }
  .news-date .news-day { font-size: 16px; }
  .news-date .news-month { margin: 0; }
  .contact-card { padding: 24px; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
  .float-cta { right: 16px; bottom: 16px; }
}

@media (max-width: 479px) {
  .hero-title { font-size: 26px; }
  .section-title { font-size: 26px; }
  .btn { padding: 12px 18px; }
  .pricing-card { padding: 24px; }
  .proof-inner { padding: 24px; }
  .badge-num { font-size: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

/* roulang page: article */
:root {
  --color-primary: #0E5C4F;
  --color-primary-bright: #2A9D8F;
  --color-accent: #C9A227;
  --color-accent-hover: #A9861F;
  --color-bg: #F7F4EF;
  --color-surface: #FFFFFF;
  --color-ink: #1F2933;
  --color-ink-secondary: #5B6770;
  --color-border: #E7DFD3;
  --color-dark-bg: #0B2B26;
  --color-success: #2E7D63;
  --color-danger: #B4433A;
  --color-info: #3B6E8F;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 30px rgba(14, 92, 79, 0.08);
  --shadow-hover: 0 16px 40px rgba(14, 92, 79, 0.16);
  --shadow-nav: 0 2px 12px rgba(11, 43, 38, 0.06);
  --shadow-float: 0 12px 32px rgba(201, 162, 39, 0.32);
  --gradient-brand: linear-gradient(135deg, #0E5C4F 0%, #2A9D8F 100%);
  --font-family: "PingFang SC", "Microsoft YaHei", "-apple-system", "Segoe UI", "Roboto", sans-serif;
  --font-num: "DIN Alternate", "Barlow Condensed", "Roboto Mono", monospace;
  --transition: 200ms ease;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-family); background: var(--color-bg); color: var(--color-ink); line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--transition); }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
@media (max-width: 768px) { .container { padding: 0 16px; } }
:focus-visible { outline: 3px solid var(--color-accent); outline-offset: 2px; border-radius: 4px; }

/* ===== Header & Nav ===== */
.site-header { position: sticky; top: 0; z-index: 100; background: rgba(247, 244, 239, 0.92); backdrop-filter: blur(12px); box-shadow: var(--shadow-nav); }
.header-top { display: flex; align-items: center; justify-content: space-between; height: 56px; padding: 0 24px; max-width: 1200px; margin: 0 auto; }
.logo { display: flex; align-items: center; gap: 10px; }
.logo-icon { width: 36px; height: 36px; border-radius: 10px; background: var(--gradient-brand); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 18px; letter-spacing: -0.02em; }
.logo-text { font-size: 20px; font-weight: 800; color: var(--color-ink); letter-spacing: -0.02em; }
.header-actions { display: flex; align-items: center; gap: 12px; }
.header-actions .btn-login { background: var(--gradient-brand); color: #fff; border: none; border-radius: var(--radius-md); padding: 8px 20px; font-size: 14px; font-weight: 600; cursor: pointer; transition: all var(--transition); }
.header-actions .btn-login:hover { transform: translateY(-2px); filter: brightness(1.08); }
.header-actions .btn-download { background: transparent; color: var(--color-primary); border: 1px solid var(--color-primary); border-radius: var(--radius-md); padding: 8px 18px; font-size: 14px; font-weight: 600; cursor: pointer; transition: all var(--transition); }
.header-actions .btn-download:hover { border-color: var(--color-accent); color: var(--color-accent); }
.header-nav { border-top: 1px solid var(--color-border); }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 44px; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-list a { display: inline-block; padding: 6px 14px; border-radius: 999px; font-size: 15px; font-weight: 500; color: var(--color-ink); transition: all var(--transition); }
.nav-list a:hover { background: rgba(14, 92, 79, 0.08); color: var(--color-primary); }
.nav-list a.active { background: var(--color-primary); color: #fff; font-weight: 600; }
.nav-search form { display: flex; align-items: center; gap: 0; }
.nav-search input { border: 1px solid var(--color-border); border-right: none; border-radius: 999px 0 0 999px; padding: 6px 16px; font-size: 14px; background: var(--color-surface); color: var(--color-ink); outline: none; transition: all var(--transition); width: 200px; }
.nav-search input:focus { border-color: var(--color-accent); box-shadow: 0 0 0 4px rgba(201, 162, 39, 0.15); }
.nav-search button { border: 1px solid var(--color-border); border-left: none; background: var(--color-surface); border-radius: 0 999px 999px 0; padding: 6px 14px; color: var(--color-primary); cursor: pointer; transition: all var(--transition); }
.nav-search button:hover { color: var(--color-accent); }
.nav-trend { display: flex; align-items: center; gap: 10px; font-size: 13px; }
.nav-trend a { color: var(--color-ink-secondary); padding: 4px 10px; border-radius: 999px; background: rgba(14, 92, 79, 0.05); font-size: 13px; transition: all var(--transition); }
.nav-trend a:hover { background: rgba(201, 162, 39, 0.15); color: var(--color-accent-hover); }
.nav-toggle { display: none; background: transparent; border: none; font-size: 22px; color: var(--color-primary); cursor: pointer; padding: 4px; }
@media (max-width: 992px) {
  .header-nav { position: fixed; top: 56px; left: 0; width: 100%; z-index: 99; background: var(--color-bg); border-bottom: 1px solid var(--color-border); transform: translateY(-120%); transition: transform 300ms ease; box-shadow: var(--shadow-nav); }
  .header-nav.open { transform: translateY(0); }
  .header-nav .nav-inner { flex-direction: column; align-items: stretch; height: auto; padding: 20px; gap: 16px; }
  .nav-list { display: flex; flex-direction: column; gap: 8px; align-items: stretch; }
  .nav-list a { padding: 14px 16px; font-size: 16px; }
  .nav-search { width: 100%; }
  .nav-search form { width: 100%; }
  .nav-search input { flex: 1; width: auto; }
  .nav-trend { flex-wrap: wrap; gap: 8px; }
  .nav-toggle { display: inline-flex; }
}

/* ===== Breadcrumb ===== */
.breadcrumb { background: var(--color-bg); padding: 20px 0 0; }
.breadcrumb .container { display: flex; align-items: center; gap: 8px; font-size: 14px; color: var(--color-ink-secondary); flex-wrap: wrap; }
.breadcrumb a { color: var(--color-ink-secondary); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb .sep { color: var(--color-border); font-weight: 300; }
.breadcrumb .current { color: var(--color-primary); font-weight: 600; }

/* ===== Article Section ===== */
.article-section { padding: 36px 0 80px; }
.article-wrap { max-width: 760px; margin: 0 auto; }
.article-header { text-align: left; margin-bottom: 32px; }
.article-category { display: inline-block; background: rgba(201, 162, 39, 0.15); color: var(--color-accent-hover); font-size: 13px; font-weight: 600; padding: 4px 14px; border-radius: 999px; margin-bottom: 16px; }
.article-header h1 { font-size: 36px; font-weight: 800; color: var(--color-ink); letter-spacing: -0.02em; line-height: 1.3; margin-bottom: 16px; }
.article-meta { display: flex; align-items: center; gap: 20px; font-size: 14px; color: var(--color-ink-secondary); border-top: 1px solid var(--color-border); border-bottom: 1px solid var(--color-border); padding: 14px 0; }
.article-meta i { margin-right: 6px; color: var(--color-accent); }
.article-body { margin-top: 32px; }
.article-content { font-size: 16px; line-height: 1.75; color: var(--color-ink); }
.article-content p { margin-bottom: 24px; }
.article-content h2 { font-size: 26px; font-weight: 700; margin: 40px 0 20px; padding-left: 12px; border-left: 4px solid var(--color-accent); letter-spacing: -0.01em; }
.article-content h3 { font-size: 20px; font-weight: 700; margin: 32px 0 16px; color: var(--color-primary); }
.article-content h4 { font-size: 17px; font-weight: 600; margin: 24px 0 12px; }
.article-content ul { margin: 0 0 24px; padding-left: 0; }
.article-content ul li { position: relative; padding-left: 22px; margin-bottom: 8px; }
.article-content ul li::before { content: ""; position: absolute; left: 2px; top: 12px; width: 8px; height: 8px; border-radius: 50%; background: var(--color-accent); }
.article-content ol { margin: 0 0 24px; padding-left: 0; counter-reset: article-list; }
.article-content ol li { position: relative; padding-left: 28px; margin-bottom: 8px; counter-increment: article-list; }
.article-content ol li::before { content: counter(article-list); position: absolute; left: 0; top: 2px; width: 20px; height: 20px; border-radius: 50%; background: rgba(14, 92, 79, 0.1); color: var(--color-primary); font-size: 13px; font-weight: 700; display: flex; align-items: center; justify-content: center; }
.article-content blockquote { margin: 24px 0; padding: 16px 20px; background: #F0ECE4; border-left: 4px solid var(--color-accent); border-radius: 0 var(--radius-md) var(--radius-md) 0; color: var(--color-ink-secondary); font-style: normal; }
.article-content img { border-radius: 16px; margin: 24px 0; box-shadow: var(--shadow-card); }
.article-content pre { background: var(--color-dark-bg); color: #E8F0EE; padding: 20px; border-radius: var(--radius-md); overflow-x: auto; margin: 24px 0; font-size: 14px; line-height: 1.6; }
.article-content code { font-family: "Roboto Mono", monospace; font-size: 0.9em; }
.article-content hr { border: none; border-top: 1px solid var(--color-border); margin: 36px 0; }
.article-content a { color: var(--color-primary-bright); border-bottom: 1px solid transparent; }
.article-content a:hover { border-bottom-color: var(--color-primary-bright); }
.not-found { text-align: center; padding: 60px 20px; background: var(--color-surface); border: 1px dashed var(--color-border); border-radius: var(--radius-lg); }
.not-found h2 { font-size: 28px; color: var(--color-ink); margin-bottom: 12px; }
.not-found p { color: var(--color-ink-secondary); margin-bottom: 24px; }
.not-found .btn-primary { display: inline-block; background: var(--gradient-brand); color: #fff; padding: 12px 28px; border-radius: var(--radius-md); font-weight: 600; transition: all var(--transition); }
.not-found .btn-primary:hover { transform: translateY(-2px); filter: brightness(1.08); }

/* ===== Related Section ===== */
.related-section { margin-top: 48px; padding-top: 40px; border-top: 1px solid var(--color-border); }
.related-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.related-head h3 { font-size: 22px; font-weight: 700; color: var(--color-ink); }
.related-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.related-card { background: var(--color-surface); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-card); transition: all var(--transition); display: flex; flex-direction: column; }
.related-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.related-card .card-cover { aspect-ratio: 16 / 9; background: var(--color-primary); overflow: hidden; position: relative; }
.related-card .card-cover img { width: 100%; height: 100%; object-fit: cover; transition: transform 400ms ease; }
.related-card:hover .card-cover img { transform: scale(1.04); }
.related-card .card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.related-card .card-tag { font-size: 12px; color: var(--color-accent-hover); font-weight: 600; margin-bottom: 8px; }
.related-card h4 { font-size: 16px; font-weight: 600; line-height: 1.5; margin-bottom: 12px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.related-card .card-link { margin-top: auto; font-size: 14px; color: var(--color-primary); font-weight: 600; display: inline-flex; align-items: center; gap: 4px; transition: all var(--transition); }
.related-card .card-link:hover { color: var(--color-accent-hover); }
.related-footer { text-align: center; margin-top: 32px; }
.btn-secondary { display: inline-block; padding: 12px 28px; border-radius: var(--radius-md); background: transparent; border: 1px solid var(--color-primary); color: var(--color-primary); font-weight: 600; font-size: 14px; transition: all var(--transition); }
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); transform: translateY(-2px); }

/* ===== CTA Section ===== */
.cta-section { padding: 56px 0 80px; }
.cta-card { background: var(--gradient-brand); border-radius: 24px; padding: 48px 40px; text-align: center; position: relative; overflow: hidden; }
.cta-card::before { content: ""; position: absolute; top: -30px; right: -30px; width: 160px; height: 160px; border-radius: 50%; background: rgba(255, 255, 255, 0.06); }
.cta-card::after { content: ""; position: absolute; bottom: -40px; left: 50%; transform: translateX(-50%); width: 220px; height: 120px; border-radius: 50%; background: rgba(255, 255, 255, 0.04); }
.cta-card h3 { font-size: 28px; font-weight: 700; color: #fff; margin-bottom: 12px; }
.cta-card p { color: rgba(255, 255, 255, 0.85); font-size: 15px; margin-bottom: 28px; }
.cta-card .btn-gold { background: var(--color-accent); color: #1A1408; border: none; padding: 14px 32px; border-radius: var(--radius-md); font-size: 16px; font-weight: 700; cursor: pointer; transition: all var(--transition); }
.cta-card .btn-gold:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2); }

/* ===== Footer ===== */
.site-footer { background: var(--color-dark-bg); color: rgba(255, 255, 255, 0.75); padding: 56px 0 0; }
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; }
.footer-col .logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.footer-col .logo-icon { background: var(--gradient-brand); }
.footer-col .logo-text { color: #fff; }
.footer-desc { font-size: 14px; color: rgba(255, 255, 255, 0.6); max-width: 320px; line-height: 1.6; }
.footer-col h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 16px; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: rgba(255, 255, 255, 0.6); font-size: 14px; transition: all var(--transition); }
.footer-links a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.08); margin-top: 48px; padding: 20px 0; }
.footer-bottom .container { display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: rgba(255, 255, 255, 0.5); flex-wrap: wrap; gap: 8px; }

/* ===== Floating CTA ===== */
.float-cta { position: fixed; right: 24px; bottom: 24px; z-index: 90; display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.float-cta .main-btn { width: 56px; height: 56px; border-radius: 50%; background: var(--gradient-brand); color: #fff; border: none; font-size: 22px; display: flex; align-items: center; justify-content: center; cursor: pointer; box-shadow: var(--shadow-float); transition: all var(--transition); }
.float-cta .main-btn:hover { transform: scale(1.06); }
.float-cta .cta-options { display: none; flex-direction: column; gap: 8px; }
.float-cta.open .cta-options { display: flex; animation: fadeInUp 220ms ease; }
.cta-options a { display: inline-flex; align-items: center; gap: 6px; background: var(--color-surface); border-radius: 999px; padding: 8px 16px; box-shadow: 0 4px 16px rgba(14, 92, 79, 0.12); font-size: 14px; font-weight: 600; color: var(--color-primary); transition: all var(--transition); }
.cta-options a:hover { background: var(--color-primary); color: #fff; transform: translateX(-4px); }
@keyframes fadeInUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ===== Responsive ===== */
@media (max-width: 992px) {
  .header-actions .btn-download { display: none; }
  .related-grid { grid-template-columns: 1fr; }
  .cta-card { padding: 36px 24px; }
  .cta-card h3 { font-size: 22px; }
}
@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; gap: 32px; padding: 0 20px; }
  .article-header h1 { font-size: 26px; }
  .article-meta { flex-wrap: wrap; gap: 12px; font-size: 13px; }
  .breadcrumb { padding-top: 12px; }
  .article-section { padding: 24px 0 56px; }
  .related-grid { grid-template-columns: 1fr; }
  .float-cta { right: 16px; bottom: 16px; }
}
@media (max-width: 576px) {
  .header-top { padding: 0 16px; }
  .logo-text { font-size: 17px; }
  .article-meta { flex-direction: column; align-items: flex-start; gap: 6px; }
  .cta-card { padding: 32px 16px; border-radius: 16px; }
  .cta-card h3 { font-size: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
  html { scroll-behavior: auto; }
}

/* roulang page: category1 */
:root {
  --color-primary: #0E5C4F;
  --color-primary-bright: #2A9D8F;
  --brand-gradient: linear-gradient(135deg, #0E5C4F 0%, #2A9D8F 100%);
  --color-accent: #C9A227;
  --color-accent-hover: #A9861F;
  --color-bg: #F7F4EF;
  --color-surface: #FFFFFF;
  --color-ink: #1F2933;
  --color-ink-secondary: #5B6770;
  --color-border: #E7DFD3;
  --color-dark-bg: #0B2B26;
  --color-success: #2E7D63;
  --color-danger: #B4433A;
  --color-info: #3B6E8F;
  --radius-card: 20px;
  --radius-banner: 24px;
  --radius-btn: 12px;
  --shadow-card: 0 8px 30px rgba(14, 92, 79, 0.08);
  --shadow-card-hover: 0 16px 40px rgba(14, 92, 79, 0.16);
  --shadow-nav: 0 2px 12px rgba(11, 43, 38, 0.06);
  --shadow-float: 0 12px 32px rgba(201, 162, 39, 0.32);
  --font-sans: "PingFang SC", "Microsoft YaHei", "-apple-system", "Segoe UI", "Roboto", sans-serif;
  --font-num: "DIN Alternate", "Barlow Condensed", "Roboto Mono", monospace;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 15px; }
.container { max-width: 1200px; margin: 0 auto; padding-left: 24px; padding-right: 24px; }
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  transition: all .2s ease;
  border: 1px solid transparent;
  min-height: 44px;
  white-space: nowrap;
}
.btn-primary {
  background: var(--brand-gradient);
  color: #fff;
  box-shadow: 0 6px 16px rgba(14, 92, 79, 0.22);
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.05); box-shadow: 0 10px 24px rgba(14, 92, 79, 0.28); }
.btn-primary:active { transform: translateY(0); filter: brightness(.98); }
.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border-color: rgba(14, 92, 79, .35);
}
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent-hover); transform: translateY(-2px); }
.btn-gold {
  background: var(--color-accent);
  color: var(--color-dark-bg);
  box-shadow: 0 6px 18px rgba(201, 162, 39, .25);
}
.btn-gold:hover { background: var(--color-accent-hover); transform: translateY(-2px); }
.btn-sm { padding: 8px 16px; font-size: 14px; min-height: 36px; }
.btn-lg { padding: 14px 32px; font-size: 16px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 200;
  background: rgba(247, 244, 239, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-nav);
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(11, 43, 38, .12); }
.header-top { border-bottom: 1px solid rgba(231, 223, 211, .6); }
.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--brand-gradient);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -1px;
  box-shadow: 0 4px 12px rgba(14, 92, 79, .25);
}
.logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}
.header-actions { display: flex; align-items: center; gap: 10px; }
.header-actions .btn { padding: 7px 14px; font-size: 13px; min-height: 34px; }
.header-actions .btn-primary { color: #fff; }
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  background: #fff;
}
.nav-toggle span { display: block; width: 18px; height: 2px; background: var(--color-primary); border-radius: 2px; transition: all .25s ease; }
.nav-toggle.active span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.header-nav {
  border-bottom: 1px solid rgba(231, 223, 211, .5);
  position: relative;
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 44px;
  gap: 16px;
}
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-list a {
  display: inline-block;
  padding: 7px 16px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink-secondary);
  border-radius: 8px;
  transition: all .2s ease;
}
.nav-list a:hover { color: var(--color-primary); background: rgba(14, 92, 79, .06); }
.nav-list a.active { color: var(--color-primary); font-weight: 600; background: rgba(14, 92, 79, .08); }
.nav-search { flex: 1; max-width: 260px; }
.nav-search form {
  display: flex;
  align-items: center;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  overflow: hidden;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.nav-search form:focus-within { border-color: var(--color-accent); box-shadow: 0 0 0 4px rgba(201, 162, 39, .15); }
.nav-search input {
  flex: 1;
  border: none;
  padding: 7px 14px;
  font-size: 14px;
  background: transparent;
  outline: none;
  min-width: 0;
}
.nav-search button {
  width: 36px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 14px;
  transition: color .2s;
}
.nav-search button:hover { color: var(--color-accent); }
.nav-trend { display: flex; align-items: center; gap: 8px; }
.nav-trend a {
  font-size: 13px;
  color: var(--color-ink-secondary);
  background: rgba(201, 162, 39, .1);
  padding: 4px 14px;
  border-radius: 999px;
  white-space: nowrap;
  transition: all .2s;
  border: 1px solid rgba(201, 162, 39, .18);
}
.nav-trend a:hover { color: var(--color-accent-hover); border-color: var(--color-accent); background: rgba(201, 162, 39, .15); }

.page-banner {
  position: relative;
  min-height: 320px;
  background-size: cover;
  background-position: center;
  display: flex;
  align-items: center;
  overflow: hidden;
  background-color: var(--color-dark-bg);
}
.page-banner .banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(11, 43, 38, .92) 0%, rgba(11, 43, 38, .75) 50%, rgba(42, 157, 143, .45) 100%);
}
.page-banner .container { position: relative; z-index: 2; padding-top: 60px; padding-bottom: 60px; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, .7);
  margin-bottom: 18px;
}
.breadcrumb a { color: rgba(255, 255, 255, .7); transition: color .2s; }
.breadcrumb a:hover { color: var(--color-accent); }
.breadcrumb .divider { opacity: .4; }
.page-banner h1 {
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  line-height: 1.3;
}
.page-banner .banner-desc {
  font-size: 16px;
  color: rgba(255, 255, 255, .85);
  max-width: 520px;
  line-height: 1.6;
}

.section { padding: 80px 0; }
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 50px;
}
.section-head h2 {
  font-size: 32px;
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 12px;
}
.section-head p {
  font-size: 16px;
  color: var(--color-ink-secondary);
  line-height: 1.7;
}

.intro-section { padding: 80px 0 60px; }
.intro-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
}
.intro-text h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.35;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.intro-text p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-ink);
  margin-bottom: 16px;
}
.intro-text .lead { color: var(--color-ink-secondary); }
.intro-check-list { margin-top: 24px; display: grid; gap: 12px; }
.intro-check-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 15px;
  color: var(--color-ink);
  line-height: 1.5;
}
.intro-check-list li i { color: var(--color-primary-bright); font-size: 18px; margin-top: 2px; flex-shrink: 0; }
.intro-image {
  position: relative;
  border-radius: var(--radius-banner);
  overflow: hidden;
  box-shadow: var(--shadow-card-hover);
}
.intro-image img { width: 100%; height: auto; object-fit: cover; border-radius: var(--radius-banner); transition: transform .4s ease; }
.intro-image:hover img { transform: scale(1.02); }
.intro-image::after {
  content: '';
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius-banner);
  pointer-events: none;
}

.features-section {
  background: var(--color-bg);
  padding: 80px 0;
}
.features-list {
  display: grid;
  gap: 24px;
  max-width: 960px;
  margin: 0 auto;
}
.feature-item {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 20px;
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 32px 36px;
  border-left: 4px solid var(--color-accent);
  box-shadow: var(--shadow-card);
  transition: all .3s ease;
}
.feature-item:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); }
.feature-num {
  font-family: var(--font-num);
  font-size: 40px;
  font-weight: 700;
  color: transparent;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-hover));
  -webkit-background-clip: text;
  background-clip: text;
  line-height: 1;
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}
.feature-content h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-ink);
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}
.feature-content p {
  font-size: 15px;
  color: var(--color-ink-secondary);
  line-height: 1.7;
}

.scenario-section { padding: 80px 0; }
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.scenario-card {
  background: var(--color-surface);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(231, 223, 211, .6);
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.scenario-card:hover { box-shadow: var(--shadow-card-hover); transform: translateY(-4px); border-color: rgba(201, 162, 39, .3); }
.scenario-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--brand-gradient);
  opacity: 0;
  transition: opacity .3s;
}
.scenario-card:hover::before { opacity: 1; }
.scenario-card .icon-wrap {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(14, 92, 79, .08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--color-primary);
  margin-bottom: 18px;
  transition: background .3s, color .3s;
}
.scenario-card:hover .icon-wrap { background: var(--brand-gradient); color: #fff; }
.scenario-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; color: var(--color-ink); }
.scenario-card p { font-size: 14px; color: var(--color-ink-secondary); line-height: 1.65; }

.steps-section {
  background: var(--color-dark-bg);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}
.steps-section .section-head h2 { color: #fff; }
.steps-section .section-head p { color: rgba(255, 255, 255, .7); }
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}
.steps-grid::before {
  content: '';
  position: absolute;
  top: 40px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: repeating-linear-gradient(90deg, rgba(255,255,255,.25) 0 8px, transparent 8px 16px);
  z-index: 0;
}
.step-item {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 0 8px;
}
.step-dot {
  width: 80px;
  height: 80px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--brand-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-num);
  font-size: 28px;
  font-weight: 700;
  color: #fff;
  border: 4px solid rgba(255, 255, 255, .15);
  box-shadow: 0 0 0 6px rgba(42, 157, 143, .25);
  font-variant-numeric: tabular-nums;
}
.step-item h3 { font-size: 17px; font-weight: 600; color: #fff; margin-bottom: 8px; }
.step-item p { font-size: 14px; color: rgba(255, 255, 255, .7); line-height: 1.65; max-width: 180px; margin: 0 auto; }

.faq-section { padding: 80px 0; }
.faq-wrap {
  display: grid;
  grid-template-columns: 0.9fr 1.4fr;
  gap: 60px;
  align-items: start;
}
.faq-intro h2 { font-size: 30px; font-weight: 800; color: var(--color-primary); line-height: 1.35; margin-bottom: 14px; }
.faq-intro p { font-size: 16px; color: var(--color-ink-secondary); line-height: 1.7; }
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--color-surface);
  border-radius: 16px;
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.faq-item.open { border-color: rgba(201, 162, 39, .4); box-shadow: var(--shadow-card); }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-ink);
  text-align: left;
  transition: color .2s;
  min-height: 48px;
}
.faq-question:hover { color: var(--color-primary); }
.faq-icon {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: rgba(14, 92, 79, .08);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 600;
  transition: all .3s ease;
  flex-shrink: 0;
  line-height: 1;
}
.faq-item.open .faq-icon {
  background: var(--brand-gradient);
  color: #fff;
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-answer-inner {
  padding: 0 20px 18px;
  background: var(--color-bg);
  font-size: 15px;
  color: var(--color-ink-secondary);
  line-height: 1.7;
}
.faq-answer-inner p { margin-bottom: 6px; }
.faq-answer-inner p:last-child { margin-bottom: 0; }

.cta-section { padding: 40px 0 80px; }
.cta-card {
  background: var(--brand-gradient);
  border-radius: var(--radius-banner);
  padding: 56px 64px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}
.cta-card::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -10%;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .06);
}
.cta-card::after {
  content: '';
  position: absolute;
  bottom: -60%;
  left: -5%;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(201, 162, 39, .12);
}
.cta-card h2 { font-size: 28px; font-weight: 800; margin-bottom: 12px; letter-spacing: -0.02em; }
.cta-card p { font-size: 16px; color: rgba(255, 255, 255, .85); margin-bottom: 28px; max-width: 420px; }
.cta-buttons { display: flex; gap: 16px; flex-wrap: wrap; justify-content: center; position: relative; z-index: 2; }
.cta-card .btn-primary { background: #fff; color: var(--color-primary); box-shadow: 0 8px 24px rgba(0, 0, 0, .15); }
.cta-card .btn-primary:hover { filter: brightness(.97); transform: translateY(-2px); }
.cta-card .btn-outline { border-color: rgba(255, 255, 255, .6); color: #fff; }
.cta-card .btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent); }

.site-footer {
  background: var(--color-dark-bg);
  padding-top: 60px;
  padding-bottom: 0;
  color: rgba(255, 255, 255, .7);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px 40px;
  display: grid;
  grid-template-columns: 1.2fr 1fr 1fr;
  gap: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}
.footer-col .logo-text { color: #fff; }
.footer-col .logo-icon { background: var(--brand-gradient); box-shadow: 0 4px 12px rgba(0, 0, 0, .3); }
.footer-desc { font-size: 14px; line-height: 1.7; margin-top: 16px; color: rgba(255, 255, 255, .6); max-width: 280px; }
.footer-col h3 { font-size: 16px; font-weight: 600; color: #fff; margin-bottom: 16px; }
.footer-links { display: grid; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255, 255, 255, .6); transition: color .2s, padding-left .2s; }
.footer-links a:hover { color: var(--color-accent); padding-left: 4px; }
.footer-bottom { max-width: 1200px; margin: 0 auto; padding: 20px 24px; display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: rgba(255, 255, 255, .4); flex-wrap: wrap; gap: 8px; }

.float-cta {
  position: fixed;
  right: 24px;
  bottom: 80px;
  z-index: 150;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}
.float-cta-btn {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--brand-gradient);
  color: #fff;
  font-size: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-float);
  transition: all .2s ease;
}
.float-cta-btn:hover { transform: scale(1.06); filter: brightness(1.08); }
.float-cta-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--color-surface);
  border-radius: 12px;
  box-shadow: var(--shadow-card-hover);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all .25s ease;
}
.float-cta-menu.open { opacity: 1; visibility: visible; transform: translateY(0); }
.float-cta-menu a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-ink);
  white-space: nowrap;
  transition: background .2s, color .2s;
}
.float-cta-menu a:hover { background: rgba(14, 92, 79, .06); color: var(--color-primary); }
.float-cta-menu a i { width: 20px; text-align: center; color: var(--color-primary); }

@media (max-width: 991.98px) {
  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .intro-image { max-width: 100%; }
  .scenario-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
  .steps-grid::before { display: none; }
  .faq-wrap { grid-template-columns: 1fr; gap: 32px; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767.98px) {
  .container { padding-left: 16px; padding-right: 16px; }
  .header-actions .btn-outline { display: none; }
  .nav-toggle { display: flex; }
  .header-nav { position: absolute; top: 100%; left: 0; right: 0; background: var(--color-bg); box-shadow: var(--shadow-card-hover); max-height: 0; overflow: hidden; transition: max-height .35s ease; }
  .header-nav.open { max-height: 600px; overflow-y: auto; }
  .nav-inner { flex-direction: column; align-items: stretch; padding: 16px; height: auto; gap: 14px; }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-list a { padding: 12px 16px; border-radius: 10px; font-size: 15px; }
  .nav-search { max-width: none; }
  .nav-trend { flex-wrap: wrap; gap: 8px; }
  .page-banner { min-height: 260px; }
  .page-banner h1 { font-size: 30px; }
  .page-banner .container { padding-top: 40px; padding-bottom: 40px; }
  .section { padding: 56px 0; }
  .features-section { padding: 56px 0; }
  .scenario-section { padding: 56px 0; }
  .steps-section { padding: 56px 0; }
  .faq-section { padding: 56px 0; }
  .section-head { margin-bottom: 36px; }
  .section-head h2 { font-size: 26px; }
  .feature-item { grid-template-columns: 1fr; gap: 12px; padding: 24px 24px; }
  .feature-num { font-size: 32px; }
  .scenario-grid { grid-template-columns: 1fr; gap: 16px; }
  .steps-grid { grid-template-columns: 1fr; gap: 32px; }
  .step-dot { width: 64px; height: 64px; font-size: 24px; }
  .cta-card { padding: 40px 24px; border-radius: 20px; }
  .cta-card h2 { font-size: 24px; }
  .cta-buttons { flex-direction: column; width: 100%; }
  .cta-buttons .btn { width: 100%; }
  .footer-inner { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 4px; }
  .float-cta { right: 16px; bottom: 16px; }
  .header-nav { position: fixed; top: 56px; }
  .site-header { position: fixed; top: 0; left: 0; right: 0; }
  body { padding-top: 56px; }
  .header-nav { top: 56px; }
}

@media (max-width: 575.98px) {
  .page-banner .banner-desc { font-size: 15px; }
  .intro-text h2 { font-size: 26px; }
  .feature-content h3 { font-size: 17px; }
  .scenario-card { padding: 20px; }
  .faq-question { font-size: 15px; padding: 14px 16px; }
  .faq-answer-inner { padding: 0 16px 16px; font-size: 14px; }
  .logo-text { font-size: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
}

:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* roulang page: category2 */
:root {
  --color-primary: #0E5C4F;
  --color-primary-bright: #2A9D8F;
  --brand-gradient: linear-gradient(135deg, #0E5C4F 0%, #2A9D8F 100%);
  --color-accent: #C9A227;
  --color-accent-hover: #A9861F;
  --color-bg: #F7F4EF;
  --color-surface: #FFFFFF;
  --color-ink: #1F2933;
  --color-ink-secondary: #5B6770;
  --color-border: #E7DFD3;
  --color-dark-bg: #0B2B26;
  --color-success: #2E7D63;
  --color-danger: #B4433A;
  --color-info: #3B6E8F;
  --radius-card: 20px;
  --radius-banner: 24px;
  --radius-btn: 12px;
  --shadow-card: 0 8px 30px rgba(14, 92, 79, 0.08);
  --shadow-card-hover: 0 16px 40px rgba(14, 92, 79, 0.16);
  --transition: 200ms ease;
  --font-family: "PingFang SC", "Microsoft YaHei", "-apple-system", "Segoe UI", "Roboto", sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--color-bg);
  color: var(--color-ink);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; font-size: inherit; border: none; background: none; }
ul, ol { list-style: none; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: var(--radius-btn); font-weight: 600;
  font-size: 15px; line-height: 1.2; cursor: pointer; min-height: 44px;
  transition: all var(--transition); border: 1px solid transparent;
}
.btn-primary {
  background: var(--brand-gradient); color: #fff;
}
.btn-primary:hover { filter: brightness(1.05); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(14,92,79,.18); }
.btn-primary:active { transform: translateY(0); }
.btn-outline {
  background: transparent; color: var(--color-primary); border-color: var(--color-primary);
}
.btn-outline:hover { border-color: var(--color-accent); color: var(--color-accent-hover); background: rgba(201,162,39,.06); }
.btn-gold {
  background: var(--color-accent); color: #0B2B26; font-weight: 700;
}
.btn-gold:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 12px 32px rgba(201,162,39,.32); }
.btn-sm { padding: 8px 18px; font-size: 14px; min-height: 40px; }
.btn-lg { padding: 14px 36px; font-size: 16px; }
:focus-visible { outline: 3px solid rgba(201,162,39,.6); outline-offset: 2px; border-radius: 4px; }
.site-header {
  position: sticky; top: 0; z-index: 100; background: rgba(247,244,239,.92);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 2px 12px rgba(11,43,38,.06);
  transition: box-shadow var(--transition);
}
.site-header.scrolled { box-shadow: 0 4px 20px rgba(11,43,38,.10); }
.header-top {
  height: 56px; border-bottom: 1px solid var(--color-border);
}
.header-top-inner {
  max-width: 1200px; margin: 0 auto; height: 100%; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.logo { display: inline-flex; align-items: center; gap: 10px; }
.logo-icon {
  width: 34px; height: 34px; border-radius: 10px; background: var(--brand-gradient);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 17px; letter-spacing: -.02em;
  box-shadow: 0 4px 12px rgba(14,92,79,.2);
}
.logo-text { font-size: 20px; font-weight: 800; letter-spacing: -.02em; color: var(--color-ink); }
.header-actions { display: flex; align-items: center; gap: 18px; }
.header-link { font-size: 14px; color: var(--color-ink-secondary); transition: color var(--transition); font-weight: 500; }
.header-link:hover { color: var(--color-primary); }
.nav-toggle { display: none; width: 40px; height: 40px; border-radius: 10px; align-items: center; justify-content: center; color: var(--color-primary); font-size: 18px; }
.nav-toggle:hover { background: rgba(14,92,79,.06); }
.header-nav { border-bottom: 1px solid var(--color-border); }
.nav-inner {
  max-width: 1200px; margin: 0 auto; height: 44px; padding: 0 24px;
  display: flex; align-items: center; gap: 20px;
}
.nav-list { display: flex; align-items: center; gap: 4px; height: 100%; }
.nav-list a {
  display: flex; align-items: center; padding: 0 14px; height: 100%;
  font-size: 15px; font-weight: 500; color: var(--color-ink-secondary);
  border-bottom: 2px solid transparent; transition: color var(--transition), border-color var(--transition);
}
.nav-list a:hover { color: var(--color-primary); }
.nav-list a.active { color: var(--color-primary); border-color: var(--color-accent); font-weight: 600; }
.nav-search { flex: 1; display: flex; justify-content: flex-end; }
.nav-search form {
  display: flex; align-items: center; background: #fff; border: 1px solid var(--color-border);
  border-radius: 999px; height: 32px; padding: 0 6px 0 14px; max-width: 240px; width: 100%;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.nav-search form:focus-within { border-color: var(--color-accent); box-shadow: 0 0 0 4px rgba(201,162,39,.15); }
.nav-search input { flex: 1; border: none; outline: none; font-size: 13px; color: var(--color-ink); background: transparent; }
.nav-search input::placeholder { color: #9BA6A0; }
.nav-search button { width: 28px; height: 28px; border-radius: 50%; background: var(--brand-gradient); color: #fff; display: flex; align-items: center; justify-content: center; font-size: 12px; cursor: pointer; transition: filter var(--transition); }
.nav-search button:hover { filter: brightness(1.1); }
.nav-trend { display: flex; align-items: center; gap: 6px; }
.nav-trend a {
  font-size: 12px; color: var(--color-primary); padding: 4px 12px;
  background: rgba(14,92,79,.06); border-radius: 999px; transition: all var(--transition); font-weight: 500;
}
.nav-trend a:hover { background: rgba(201,162,39,.18); color: var(--color-accent-hover); }
@media (max-width: 992px) {
  .header-nav { position: fixed; top: 56px; left: 0; right: 0; bottom: 0; background: var(--color-bg); z-index: 99; max-height: calc(100vh - 56px); overflow-y: auto; display: none; }
  .header-nav.open { display: block; }
  .nav-inner { flex-direction: column; align-items: stretch; height: auto; padding: 20px 24px; gap: 16px; }
  .nav-list { flex-direction: column; gap: 0; height: auto; }
  .nav-list a { height: 48px; padding: 0; border-bottom: none; border-left: 3px solid transparent; font-size: 16px; }
  .nav-list a.active { border-left-color: var(--color-accent); }
  .nav-search { justify-content: center; }
  .nav-search form { max-width: 100%; height: 40px; padding-left: 16px; }
  .nav-trend { justify-content: center; }
  .nav-toggle { display: flex; }
}
.cat-banner {
  position: relative; min-height: 300px; display: flex; align-items: center;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover; background-position: center;
  overflow: hidden; padding: 60px 0;
}
.cat-banner::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(120deg, rgba(11,43,38,.94) 0%, rgba(14,92,79,.86) 55%, rgba(42,157,143,.65) 100%);
}
.cat-banner::after {
  content: ''; position: absolute; right: -60px; bottom: -80px; width: 320px; height: 320px;
  border-radius: 50%; border: 2px solid rgba(201,162,39,.4); pointer-events: none;
}
.cat-banner-inner { position: relative; z-index: 2; color: #fff; max-width: 680px; }
.cat-banner-tag {
  display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600;
  background: rgba(201,162,39,.2); border: 1px solid rgba(201,162,39,.45);
  padding: 6px 16px; border-radius: 999px; margin-bottom: 18px; color: #E8D48B;
}
.cat-banner h1 { font-size: 36px; font-weight: 800; letter-spacing: -.02em; line-height: 1.25; margin-bottom: 14px; }
.cat-banner p { font-size: 16px; opacity: .92; max-width: 520px; }
.cat-banner .btn { margin-top: 26px; }
@media (max-width: 768px) {
  .cat-banner { min-height: 260px; padding: 48px 0; }
  .cat-banner h1 { font-size: 28px; }
  .cat-banner p { font-size: 14px; }
}
.cat-section { padding: 96px 0; }
.cat-section.alt-bg { background: #fff; }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-tag {
  display: inline-block; font-size: 13px; font-weight: 600; color: var(--color-accent-hover);
  background: rgba(201,162,39,.1); padding: 5px 16px; border-radius: 999px; margin-bottom: 14px;
}
.section-head h2 { font-size: 32px; font-weight: 800; letter-spacing: -.02em; line-height: 1.3; margin-bottom: 14px; }
.section-head p { color: var(--color-ink-secondary); font-size: 16px; }
@media (max-width: 768px) {
  .cat-section { padding: 56px 0; }
  .section-head h2 { font-size: 24px; }
}
.split-layout {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 64px; align-items: center;
}
.split-layout.reverse { direction: rtl; }
.split-layout.reverse > * { direction: ltr; }
.split-media { position: relative; }
.split-media img {
  border-radius: 24px; box-shadow: var(--shadow-card-hover); width: 100%; object-fit: cover;
  aspect-ratio: 4/3;
}
.split-media::before {
  content: ''; position: absolute; inset: -14px; border-radius: 32px;
  border: 2px solid rgba(201,162,39,.35); z-index: -1;
}
.split-content h2 { font-size: 28px; font-weight: 800; letter-spacing: -.02em; line-height: 1.3; margin-bottom: 18px; }
.split-content .lead { color: var(--color-ink-secondary); font-size: 16px; margin-bottom: 22px; }
.check-list { display: flex; flex-direction: column; gap: 12px; margin-top: 4px; }
.check-list li { display: flex; align-items: flex-start; gap: 10px; font-size: 15px; color: var(--color-ink); }
.check-list li i { color: var(--color-success); font-size: 18px; margin-top: 2px; }
@media (max-width: 992px) {
  .split-layout { grid-template-columns: 1fr; gap: 40px; }
  .split-layout.reverse { direction: ltr; }
}
.checklist-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px; max-width: 960px; margin: 0 auto;
}
.checklist-item {
  display: flex; gap: 20px; background: var(--color-surface); border-radius: var(--radius-card);
  padding: 32px; box-shadow: var(--shadow-card); border-left: 4px solid var(--color-accent);
  transition: all var(--transition);
}
.checklist-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.checklist-num {
  font-family: "DIN Alternate", "Barlow Condensed", "Roboto Mono", sans-serif;
  font-size: 38px; font-weight: 700; background: var(--brand-gradient);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  line-height: 1; min-width: 52px; font-variant-numeric: tabular-nums;
}
.checklist-content h3 { font-size: 18px; font-weight: 700; margin-bottom: 8px; }
.checklist-content p { font-size: 14px; color: var(--color-ink-secondary); line-height: 1.65; }
@media (max-width: 768px) {
  .checklist-grid { grid-template-columns: 1fr; }
  .checklist-item { padding: 24px; }
}
.scenarios-grid {
  display: grid; grid-template-columns: 7fr 5fr; gap: 24px;
}
.scenario-card {
  background: var(--color-surface); border-radius: var(--radius-card); padding: 36px;
  box-shadow: var(--shadow-card); transition: all var(--transition); position: relative; overflow: hidden;
}
.scenario-card:first-child { grid-column: 1; }
.scenario-card:nth-child(2) { grid-column: 2; grid-row: 1; }
.scenario-card:nth-child(3) { grid-column: 1 / -1; background: var(--brand-gradient); color: #fff; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 24px; }
.scenario-card:nth-child(3) .scenario-icon { background: rgba(255,255,255,.18); }
.scenario-card:nth-child(3) h3 { color: #fff; }
.scenario-card:nth-child(3) p { color: rgba(255,255,255,.85); }
.scenario-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.scenario-icon {
  width: 56px; height: 56px; border-radius: 16px; background: rgba(14,92,79,.08);
  color: var(--color-primary); display: flex; align-items: center; justify-content: center;
  font-size: 24px; margin-bottom: 18px;
}
.scenario-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.scenario-card p { font-size: 14px; color: var(--color-ink-secondary); line-height: 1.7; }
.scenario-card .btn { margin-top: 10px; }
@media (max-width: 992px) {
  .scenarios-grid { grid-template-columns: 1fr; }
  .scenario-card:first-child, .scenario-card:nth-child(2) { grid-column: 1; grid-row: auto; }
  .scenario-card:nth-child(3) { grid-template-columns: 1fr; }
}
.security-flow { background: var(--color-dark-bg); position: relative; overflow: hidden; }
.security-flow::before {
  content: ''; position: absolute; top: 80px; right: -80px; width: 300px; height: 300px;
  border-radius: 50%; border: 2px solid rgba(201,162,39,.25);
}
.security-flow .section-head h2 { color: #fff; }
.security-flow .section-head p { color: rgba(255,255,255,.7); }
.flow-list { max-width: 760px; margin: 0 auto; position: relative; padding-left: 40px; }
.flow-list::before {
  content: ''; position: absolute; left: 14px; top: 10px; bottom: 10px; width: 1px;
  background: linear-gradient(to bottom, var(--color-accent) 0%, rgba(201,162,39,.3) 100%);
}
.flow-step { position: relative; padding-bottom: 40px; }
.flow-step:last-child { padding-bottom: 0; }
.flow-dot {
  position: absolute; left: -40px; top: 6px; width: 30px; height: 30px;
  border-radius: 50%; background: var(--color-primary); border: 3px solid var(--color-accent);
  box-shadow: 0 0 0 5px rgba(201,162,39,.25); z-index: 1;
}
.flow-card {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.12);
  backdrop-filter: blur(8px); border-radius: 20px; padding: 28px 32px;
  transition: all var(--transition);
}
.flow-card:hover { background: rgba(255,255,255,.1); border-color: rgba(201,162,39,.4); transform: translateX(4px); }
.flow-card .step-label {
  display: inline-block; font-size: 12px; font-weight: 600; color: #E8D48B;
  background: rgba(201,162,39,.15); padding: 3px 12px; border-radius: 999px; margin-bottom: 10px;
}
.flow-card h4 { font-size: 19px; font-weight: 700; color: #fff; margin-bottom: 8px; }
.flow-card p { font-size: 14px; color: rgba(255,255,255,.75); line-height: 1.65; }
.faq-layout {
  display: grid; grid-template-columns: 4fr 8fr; gap: 56px;
}
.faq-title h2 { font-size: 30px; font-weight: 800; letter-spacing: -.02em; line-height: 1.3; margin-bottom: 16px; }
.faq-title p { color: var(--color-ink-secondary); font-size: 15px; margin-bottom: 24px; }
.faq-list { display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  background: var(--color-surface); border-radius: var(--radius-card); box-shadow: var(--shadow-card);
  overflow: hidden; transition: box-shadow var(--transition);
}
.faq-item:hover { box-shadow: var(--shadow-card-hover); }
.faq-question {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 18px 24px; font-size: 16px; font-weight: 600; cursor: pointer; text-align: left;
  width: 100%; min-height: 56px; color: var(--color-ink); transition: color var(--transition);
}
.faq-question:hover { color: var(--color-primary); }
.faq-icon {
  width: 28px; height: 28px; flex-shrink: 0; border-radius: 50%; background: var(--color-bg);
  display: flex; align-items: center; justify-content: center; font-size: 16px; color: var(--color-accent-hover);
  transition: transform var(--transition), background var(--transition);
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: rgba(201,162,39,.15); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.3s ease; }
.faq-answer-inner { padding: 0 24px 20px; font-size: 14px; color: var(--color-ink-secondary); line-height: 1.7; background: var(--color-bg); border-top: 1px solid var(--color-border); padding-top: 16px; }
@media (max-width: 992px) {
  .faq-layout { grid-template-columns: 1fr; gap: 32px; }
}
.cat-cta {
  background: var(--brand-gradient); padding: 80px 0; text-align: center; position: relative; overflow: hidden;
}
.cat-cta::before {
  content: ''; position: absolute; top: -60px; left: 50%; transform: translateX(-50%);
  width: 400px; height: 400px; border-radius: 50%; border: 2px solid rgba(255,255,255,.12);
}
.cat-cta h2 { font-size: 34px; font-weight: 800; color: #fff; letter-spacing: -.02em; margin-bottom: 14px; }
.cat-cta p { color: rgba(255,255,255,.85); font-size: 16px; max-width: 560px; margin: 0 auto 30px; }
.cat-cta .btn-gold { background: var(--color-accent); color: #0B2B26; }
.cat-cta .btn-gold:hover { background: #E4BE3F; }
@media (max-width: 768px) {
  .cat-cta { padding: 56px 0; }
  .cat-cta h2 { font-size: 24px; }
}
.site-footer { background: var(--color-dark-bg); color: rgba(255,255,255,.85); padding: 56px 0 0; }
.footer-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: grid; grid-template-columns: 4fr 3fr 3fr; gap: 40px; padding-bottom: 40px;
}
.footer-col .logo { margin-bottom: 14px; }
.footer-col .logo-text { color: #fff; }
.footer-desc { font-size: 14px; color: rgba(255,255,255,.6); line-height: 1.6; max-width: 260px; }
.footer-col h3 { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: -.01em; }
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.65); transition: color var(--transition), transform var(--transition); display: inline-flex; align-items: center; gap: 6px; }
.footer-links a:hover { color: var(--color-accent); transform: translateX(2px); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); padding: 18px 0;
}
.footer-bottom .container {
  display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap;
  font-size: 13px; color: rgba(255,255,255,.45);
}
@media (max-width: 768px) {
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom .container { flex-direction: column; text-align: center; }
}
.float-cta {
  position: fixed; right: 24px; bottom: 32px; z-index: 90; opacity: 0; visibility: hidden;
  transform: translateY(20px); transition: all var(--transition);
}
.float-cta.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.float-main {
  width: 56px; height: 56px; border-radius: 50%; background: var(--brand-gradient);
  color: #fff; font-size: 22px; display: flex; align-items: center; justify-content: center;
  cursor: pointer; box-shadow: 0 12px 32px rgba(201,162,39,.32); transition: all var(--transition);
}
.float-main:hover { transform: scale(1.06); filter: brightness(1.05); }
.float-actions {
  display: flex; flex-direction: column; gap: 8px; position: absolute; right: 0; bottom: 68px;
  transform: scale(.9); transform-origin: bottom right; opacity: 0; pointer-events: none; transition: all var(--transition);
}
.float-cta.open .float-actions { opacity: 1; transform: scale(1); pointer-events: auto; }
.float-action {
  display: flex; align-items: center; gap: 8px; background: #fff; box-shadow: var(--shadow-card-hover);
  border-radius: 999px; padding: 10px 18px; font-size: 14px; font-weight: 600; color: var(--color-primary);
  white-space: nowrap; transition: all var(--transition);
}
.float-action:hover { background: var(--color-bg); color: var(--color-accent-hover); }
@media (max-width: 768px) {
  .float-cta { right: 16px; bottom: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition: none !important; animation: none !important; }
  .checklist-item:hover, .scenario-card:hover, .flow-card:hover { transform: none; }
}