/* =========================================================
   漫画吧 - 单页面网站样式
   文件：style.css
   ========================================================= */

/* ---------- 变量 ---------- */
:root {
  --brand: #6c3bf4;
  --brand-2: #a855f7;
  --brand-3: #22d3ee;
  --brand-soft: #f1efff;

  --ink: #0f1222;
  --ink-2: #2b2f45;
  --muted: #6b7280;
  --line: rgba(15, 18, 34, 0.08);
  --line-strong: rgba(15, 18, 34, 0.14);

  --bg: #ffffff;
  --soft: #f7f6ff;
  --dark: #0b0b16;
  --dark-2: #151528;

  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 26px;

  --shadow-sm: 0 6px 18px rgba(15, 18, 34, 0.05);
  --shadow: 0 14px 40px rgba(15, 18, 34, 0.08);
  --shadow-lg: 0 24px 70px rgba(15, 18, 34, 0.14);

  --container: 1200px;
  --header-h: 72px;
}

/* ---------- 基础重置 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: system-ui, -apple-system, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img,
svg,
video {
  max-width: 100%;
  height: auto;
  display: block;
}

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

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

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

p {
  margin: 0 0 1em;
}

p:last-child {
  margin-bottom: 0;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.5em;
  line-height: 1.25;
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.02em;
}

h1 {
  font-size: clamp(34px, 5vw, 58px);
}

h2 {
  font-size: clamp(26px, 3.4vw, 40px);
}

h3 {
  font-size: 19px;
}

h4 {
  font-size: 16px;
}

em {
  font-style: normal;
}

/* ---------- 容器 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.25s ease, border-color 0.25s ease,
    background 0.25s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: var(--line);
  box-shadow: 0 8px 30px rgba(15, 18, 34, 0.06);
}

.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 900;
  font-size: 18px;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 8px 20px rgba(108, 59, 244, 0.35);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.1;
  font-weight: 900;
  font-size: 17px;
  color: var(--ink);
}

.logo-text small {
  font-size: 11px;
  font-weight: 500;
  color: var(--muted);
  margin-top: 3px;
}

/* 导航 */
.nav {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav a {
  display: inline-block;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 14px;
  color: var(--ink-2);
  transition: background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.nav a:hover {
  background: var(--brand-soft);
  color: var(--brand);
}

.nav a.is-active {
  background: var(--brand-soft);
  color: var(--brand);
  font-weight: 700;
}

.nav .nav-cta {
  margin-left: 8px;
  padding: 9px 18px;
  color: #fff;
  font-weight: 700;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 8px 20px rgba(108, 59, 244, 0.28);
}

.nav .nav-cta:hover {
  color: #fff;
  background: linear-gradient(135deg, #5b2ee0, #9333ea);
}

/* 汉堡按钮 */
.burger {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  padding: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}

.burger span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.burger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger.is-open span:nth-child(2) {
  opacity: 0;
}

.burger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ---------- 首屏 Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: calc(var(--header-h) + 72px) 0 88px;
  background:
    radial-gradient(900px 500px at 15% 0%, rgba(108, 59, 244, 0.28), transparent 60%),
    radial-gradient(800px 500px at 90% 20%, rgba(34, 211, 238, 0.18), transparent 60%),
    linear-gradient(180deg, #0b0b16 0%, #12122a 60%, #171735 100%);
  color: #fff;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.55;
}

.orb-1 {
  width: 420px;
  height: 420px;
  left: -120px;
  top: -80px;
  background: radial-gradient(circle, rgba(108, 59, 244, 0.9), transparent 70%);
}

.orb-2 {
  width: 360px;
  height: 360px;
  right: -80px;
  top: 80px;
  background: radial-gradient(circle, rgba(168, 85, 247, 0.75), transparent 70%);
}

.orb-3 {
  width: 420px;
  height: 420px;
  left: 40%;
  bottom: -220px;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.45), transparent 70%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 56px;
  align-items: center;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.88);
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 22px;
}

.hero-pill .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22d3ee;
  box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.18);
}

.hero h1 {
  color: #fff;
  margin-bottom: 18px;
}

.grad {
  background: linear-gradient(135deg, #c4b5fd, #22d3ee 70%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  max-width: 580px;
  font-size: 17px;
  color: rgba(255, 255, 255, 0.78);
  margin-bottom: 28px;
}

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

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  max-width: 620px;
}

.hero-stats li {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-stats b {
  display: block;
  font-size: 24px;
  line-height: 1;
  color: #fff;
  margin-bottom: 6px;
}

.hero-stats span {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.68);
}

/* Hero 右侧封面堆叠 */
.hero-visual {
  position: relative;
  min-height: 430px;
}

.cover-stack {
  position: relative;
  height: 430px;
}

.cover {
  position: absolute;
  width: 210px;
  height: 290px;
  border-radius: 20px;
  padding: 20px;
  color: #fff;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.16);
  overflow: hidden;
}

.cover::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 15%, rgba(255, 255, 255, 0.28), transparent 55%);
  pointer-events: none;
}

.cover-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  font-size: 11px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(6px);
}

.cover strong {
  font-size: 20px;
  line-height: 1.2;
  margin-bottom: 4px;
}

.cover small {
  font-size: 12px;
  opacity: 0.8;
}

.cover-1 {
  left: 0;
  top: 26px;
  transform: rotate(-8deg);
  background: linear-gradient(160deg, #6d28d9, #a855f7);
  z-index: 3;
}

.cover-2 {
  left: 118px;
  top: 0;
  transform: rotate(4deg);
  background: linear-gradient(160deg, #db2777, #f472b6);
  z-index: 4;
}

.cover-3 {
  left: 52px;
  top: 132px;
  transform: rotate(-2deg);
  background: linear-gradient(160deg, #0ea5e9, #22d3ee);
  z-index: 5;
}

.cover-4 {
  left: 196px;
  top: 112px;
  transform: rotate(8deg);
  background: linear-gradient(160deg, #f59e0b, #fb7185);
  z-index: 2;
}

/* ---------- 通用按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 24px;
  border-radius: 999px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease,
    background 0.2s ease, border-color 0.2s ease;
  text-align: center;
  line-height: 1.2;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  color: #fff;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  box-shadow: 0 12px 30px rgba(108, 59, 244, 0.32);
}

.btn--primary:hover {
  box-shadow: 0 18px 40px rgba(108, 59, 244, 0.42);
}

.btn--ghost {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.28);
}

.btn--ghost:hover {
  background: rgba(255, 255, 255, 0.16);
}

.btn--sm {
  padding: 9px 16px;
  font-size: 13px;
}

.btn--block {
  width: 100%;
}

/* ---------- 通用 Section ---------- */
.section {
  padding: 92px 0;
  scroll-margin-top: calc(var(--header-h) + 12px);
}

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

.section--tight {
  padding: 64px 0;
}

.section-head {
  max-width: 820px;
  margin: 0 auto 52px;
  text-align: center;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}

.section-title {
  margin-bottom: 14px;
}

.section-title em {
  background: linear-gradient(135deg, var(--brand), var(--brand-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-sub {
  color: var(--muted);
  font-size: 16px;
  margin: 0;
}

/* ---------- 卡片与网格 ---------- */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease,
    border-color 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(108, 59, 244, 0.22);
}

.card h3 {
  margin-bottom: 10px;
}

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

.grid {
  display: grid;
  gap: 22px;
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

/* ---------- 关键词介绍 ---------- */
.prose-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.prose-grid .card h3 {
  font-size: 18px;
}

/* ---------- 关于我们 ---------- */
.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 34px;
  align-items: start;
}

.about-main h3 {
  margin-top: 28px;
}

.about-main h3:first-child {
  margin-top: 0;
}

.about-main p {
  color: var(--muted);
}

.tick-list {
  display: grid;
  gap: 10px;
  margin-top: 12px;
}

.tick-list li {
  position: relative;
  padding-left: 26px;
  color: var(--muted);
  font-size: 15px;
}

.tick-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  color: var(--brand);
  font-weight: 900;
}

.about-side {
  display: grid;
  gap: 16px;
}

.mini-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.mini-num {
  display: inline-block;
  font-size: 13px;
  font-weight: 900;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.mini-card h4 {
  margin-bottom: 6px;
}

.mini-card p {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

/* ---------- 企业优势 ---------- */
.feature-card {
  text-align: left;
}

.feature-icon {
  display: inline-flex;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  background: linear-gradient(135deg, var(--brand-soft), #e0f2fe);
  margin-bottom: 16px;
}

/* ---------- 产品展示 ---------- */
.product-card {
  display: flex;
  flex-direction: column;
}

.product-thumb {
  height: 132px;
  border-radius: 14px;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 26px;
  font-weight: 900;
  letter-spacing: 0.08em;
  box-shadow: inset 0 -30px 60px rgba(0, 0, 0, 0.18);
}

.thumb-jp { background: linear-gradient(135deg, #4c1d95, #7c3aed); }
.thumb-cn { background: linear-gradient(135deg, #be123c, #f43f5e); }
.thumb-kr { background: linear-gradient(135deg, #0369a1, #06b6d4); }
.thumb-eu { background: linear-gradient(135deg, #b45309, #f59e0b); }
.thumb-strip { background: linear-gradient(135deg, #047857, #10b981); }
.thumb-nav { background: linear-gradient(135deg, #1e293b, #475569); }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 12px 0;
}

.tag-list li {
  font-size: 12px;
  font-weight: 700;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 4px 10px;
  border-radius: 999px;
}

.tag-list--lg li {
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink-2);
}

.product-scene {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 14px;
}

.link-more {
  margin-top: auto;
  font-size: 14px;
  font-weight: 800;
  color: var(--brand);
}

.link-more:hover {
  text-decoration: underline;
}

/* ---------- 热门产品 ---------- */
.hot-card {
  position: relative;
}

.hot-badge {
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 11px;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(135deg, #f97316, #ef4444);
  padding: 4px 10px;
  border-radius: 999px;
}

.hot-reason {
  font-size: 14px;
  color: var(--muted);
}

.hot-card .btn {
  margin-top: 10px;
}

/* ---------- 数据展示 ---------- */
.data-grid {
  margin-bottom: 24px;
}

.data-card {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px 20px;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.data-card b {
  display: block;
  font-size: 34px;
  line-height: 1;
  color: var(--brand);
  margin: 12px 0 8px;
}

.data-label {
  font-size: 13px;
  color: var(--muted);
}

.data-flag {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  color: #92400e;
  background: #fef3c7;
  border: 1px solid #fde68a;
  padding: 3px 8px;
  border-radius: 999px;
}

.data-note {
  max-width: 900px;
  margin: 0 auto;
  padding: 18px 20px;
  border-radius: 14px;
  background: #fffbeb;
  border: 1px solid #fde68a;
  color: #92400e;
  font-size: 14px;
}

/* ---------- 案例 ---------- */
.case-card {
  position: relative;
}

.case-flag {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  color: #6d28d9;
  background: #ede9fe;
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}

/* ---------- 发展历程 ---------- */
.timeline {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  gap: 6px;
}

.timeline li {
  position: relative;
  display: grid;
  grid-template-columns: 34px minmax(0, 1fr);
  gap: 18px;
  padding-bottom: 26px;
}

.timeline li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 18px;
  bottom: -6px;
  width: 2px;
  background: linear-gradient(180deg, rgba(108, 59, 244, 0.5), rgba(34, 211, 238, 0.12));
}

.timeline li:last-child::before {
  display: none;
}

.tl-dot {
  position: relative;
  z-index: 2;
  width: 16px;
  height: 16px;
  margin: 4px auto 0;
  border-radius: 50%;
  background: #fff;
  border: 4px solid var(--brand);
  box-shadow: 0 0 0 5px rgba(108, 59, 244, 0.12);
}

.tl-body {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}

.tl-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 800;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

.tl-body h3 {
  margin-bottom: 8px;
}

.tl-body p {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
}

/* ---------- 团队与经营数据 ---------- */
.team-card {
  text-align: left;
}

.finance-note {
  max-width: 920px;
  margin: 28px auto 0;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 5px solid var(--brand);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}

.finance-note p {
  color: var(--muted);
  margin: 0;
}

/* ---------- 企业文化 ---------- */
.culture-card {
  text-align: left;
}

.culture-card h3 {
  color: var(--brand);
}

/* ---------- 荣誉资质 ---------- */
.honor-placeholder {
  background: #fff;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: 30px 18px;
  text-align: center;
  color: var(--muted);
  font-size: 14px;
}

.honor-icon {
  display: block;
  font-size: 26px;
  margin-bottom: 10px;
}

/* ---------- 合作伙伴 ---------- */
.partner-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.partner-logo {
  height: 96px;
  border: 1px dashed var(--line-strong);
  border-radius: 16px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9ca3af;
  font-size: 14px;
  font-weight: 600;
}

/* ---------- 新闻中心 ---------- */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.news-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease,
    border-color 0.25s ease;
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: rgba(108, 59, 244, 0.22);
}

.news-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 12px;
}

.news-cat {
  font-weight: 800;
  color: var(--brand);
  background: var(--brand-soft);
  padding: 4px 9px;
  border-radius: 999px;
}

.news-meta time {
  color: var(--muted);
}

.news-card h3 {
  font-size: 17px;
  line-height: 1.45;
  margin-bottom: 10px;
}

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

.news-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.news-tags span {
  font-size: 11px;
  color: var(--muted);
  background: #f3f4f6;
  padding: 3px 8px;
  border-radius: 999px;
}

/* ---------- 服务区域 ---------- */
.region-card {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 4px solid var(--brand);
  border-radius: 14px;
  padding: 20px;
  box-shadow: var(--shadow-sm);
}

.region-card h3 {
  margin-bottom: 6px;
}

.region-card p {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}

/* ---------- 技术支持 ---------- */
.support-card {
  text-align: left;
}

.support-icon {
  display: inline-flex;
  width: 46px;
  height: 46px;
  border-radius: 14px;
  align-items: center;
  justify-content: center;
  font-size: 21px;
  background: linear-gradient(135deg, var(--brand-soft), #e0f2fe);
  margin-bottom: 14px;
}

/* ---------- 新手指南 ---------- */
.guide-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.guide-steps li {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
}

.step-num {
  display: inline-block;
  font-size: 26px;
  font-weight: 900;
  line-height: 1;
  background: linear-gradient(135deg, var(--brand), var(--brand-3));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 14px;
}

.guide-steps h3 {
  margin-bottom: 8px;
}

.guide-steps p {
  color: var(--muted);
  font-size: 15px;
  margin: 0;
}

/* ---------- 用户口碑 ---------- */
.quote-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.quote-card p {
  font-size: 15px;
  color: var(--ink-2);
}

.quote-card footer {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
}

.avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand), var(--brand-2));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 800;
  flex-shrink: 0;
}

.quote-card cite {
  font-size: 13px;
  color: var(--muted);
  font-style: normal;
}

/* ---------- 品牌故事 ---------- */
.story-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 34px;
  align-items: start;
}

.story-text h3 {
  margin-top: 26px;
}

.story-text h3:first-child {
  margin-top: 0;
}

.story-text p {
  color: var(--muted);
}

.story-side {
  display: grid;
  gap: 16px;
}

.story-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.story-card h4 {
  margin-bottom: 14px;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  gap: 12px;
}

.faq-item {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 18px 22px;
  font-weight: 700;
  color: var(--ink);
  position: relative;
  padding-right: 52px;
}

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

.faq-item summary::after {
  content: "+";
  position: absolute;
  right: 20px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--brand-soft);
  color: var(--brand);
  font-weight: 900;
  font-size: 16px;
  transition: transform 0.2s ease;
}

.faq-item[open] summary::after {
  content: "−";
  transform: translateY(-50%) rotate(180deg);
}

.faq-body {
  padding: 0 22px 20px;
  color: var(--muted);
  font-size: 15px;
}

.faq-body p {
  margin: 0;
}

/* ---------- 在线留言 ---------- */
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 28px;
  align-items: start;
}

.contact-form {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 30px;
  box-shadow: var(--shadow);
}

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

.form-row label {
  display: block;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 8px;
}

.form-row label span {
  color: #ef4444;
}

.form-row input,
.form-row select,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: #fff;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-row textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(108, 59, 244, 0.12);
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 20px;
}

.checkbox-row input {
  margin-top: 4px;
  accent-color: var(--brand);
}

.form-tip {
  margin-top: 14px;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 14px;
}

.form-tip.is-err {
  color: #b91c1c;
  background: #fef2f2;
  border: 1px solid #fecaca;
}

.form-tip.is-ok {
  color: #047857;
  background: #ecfdf5;
  border: 1px solid #a7f3d0;
}

.form-note {
  margin-top: 14px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}

.contact-info {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.contact-info h3 {
  margin-bottom: 18px;
}

.contact-list {
  display: grid;
  gap: 0;
  margin-bottom: 18px;
}

.contact-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}

.contact-list li:last-child {
  border-bottom: none;
}

.ci-label {
  color: var(--muted);
  flex-shrink: 0;
}

.ci-value {
  text-align: right;
  color: var(--ink-2);
  font-weight: 600;
  word-break: break-word;
}

.ci-value.is-pending,
.is-pending {
  color: #b45309;
  font-weight: 600;
}

/* ---------- SEO 文章 ---------- */
.seo-article {
  max-width: 900px;
  margin: 0 auto;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 38px;
  box-shadow: var(--shadow-sm);
}

.seo-article p {
  color: var(--ink-2);
  font-size: 16px;
}

/* ---------- 快速导航 ---------- */
.quicknav-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
}

.quicknav-grid li a {
  display: block;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 14px;
  text-align: center;
  font-weight: 700;
  font-size: 14px;
  color: var(--ink-2);
  transition: transform 0.2s ease, border-color 0.2s ease,
    color 0.2s ease, box-shadow 0.2s ease;
}

.quicknav-grid li a:hover {
  transform: translateY(-3px);
  border-color: rgba(108, 59, 244, 0.35);
  color: var(--brand);
  box-shadow: var(--shadow-sm);
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: var(--dark);
  color: rgba(255, 255, 255, 0.72);
  padding: 70px 0 28px;
  margin-top: 20px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 46px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo--footer .logo-text {
  color: #fff;
}

.logo--footer .logo-text small {
  color: rgba(255, 255, 255, 0.55);
}

.footer-brand p {
  margin: 18px 0;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.62);
  max-width: 420px;
}

.footer-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.footer-tags li {
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.72);
}

.footer-col h3 {
  color: #fff;
  font-size: 15px;
  margin-bottom: 16px;
}

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

.footer-col a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.66);
  transition: color 0.2s ease;
}

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

.footer-contact li {
  display: flex;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.66);
}

.footer-contact span {
  color: rgba(255, 255, 255, 0.42);
  flex-shrink: 0;
}

.footer-contact .is-pending {
  color: #fbbf24;
}

.footer-bottom {
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.copyright {
  margin: 0;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.48);
}

.footer-legal {
  display: flex;
  gap: 18px;
}

.footer-legal a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.56);
}

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

/* ---------- 滚动渐显 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 响应式：大平板 ---------- */
@media (max-width: 1100px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .quicknav-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-top {
    grid-template-columns: 1.4fr 1fr 1fr;
  }

  .footer-top .footer-col:last-child {
    grid-column: 1 / -1;
  }
}

/* ---------- 响应式：平板与移动导航 ---------- */
@media (max-width: 980px) {
  :root {
    --header-h: 64px;
  }

  .container {
    padding: 0 20px;
  }

  .burger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 14px 20px 22px;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 20px 40px rgba(15, 18, 34, 0.1);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }

  .nav.is-open {
    display: flex;
  }

  .nav a {
    width: 100%;
    padding: 12px 14px;
    border-radius: 12px;
    font-size: 15px;
  }

  .nav .nav-cta {
    margin-left: 0;
    text-align: center;
    margin-top: 6px;
  }

  .hero {
    padding: calc(var(--header-h) + 54px) 0 72px;
  }

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

  .hero-visual {
    min-height: 330px;
  }

  .cover-stack {
    height: 330px;
  }

  .cover {
    width: 160px;
    height: 220px;
    padding: 14px;
  }

  .cover strong {
    font-size: 16px;
  }

  .cover-1 { left: 2%; top: 20px; }
  .cover-2 { left: 28%; top: 0; }
  .cover-3 { left: 12%; top: 110px; }
  .cover-4 { left: 46%; top: 92px; }

  .section {
    padding: 72px 0;
  }

  .grid-3,
  .news-grid,
  .guide-steps,
  .partner-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .about-layout,
  .story-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

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

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

  .footer-top {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 32px;
  }

  .footer-top .footer-col:last-child {
    grid-column: auto;
  }

  .seo-article {
    padding: 28px;
  }
}

/* ---------- 响应式：手机 ---------- */
@media (max-width: 640px) {
  body {
    font-size: 15px;
  }

  .container {
    padding: 0 16px;
  }

  .logo-text {
    font-size: 15px;
  }

  .logo-mark {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    font-size: 16px;
  }

  .hero {
    padding: calc(var(--header-h) + 42px) 0 58px;
  }

  .hero h1 {
    font-size: 32px;
  }

  .hero-sub {
    font-size: 15px;
  }

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

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

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

  .hero-visual {
    min-height: 280px;
  }

  .cover-stack {
    height: 280px;
  }

  .cover {
    width: 132px;
    height: 180px;
    padding: 12px;
    border-radius: 14px;
  }

  .cover strong {
    font-size: 14px;
  }

  .cover small {
    font-size: 10px;
  }

  .cover-1 { left: 0; top: 16px; }
  .cover-2 { left: 30%; top: 0; }
  .cover-3 { left: 10%; top: 96px; }
  .cover-4 { left: 50%; top: 78px; }

  .section {
    padding: 58px 0;
  }

  .section-head {
    margin-bottom: 34px;
  }

  .section-title {
    font-size: 26px;
  }

  .section-sub {
    font-size: 14px;
  }

  .grid-3,
  .grid-4,
  .news-grid,
  .guide-steps,
  .partner-grid,
  .region-grid,
  .quicknav-grid,
  .about-side,
  .story-side {
    grid-template-columns: 1fr;
  }

  .card,
  .news-card,
  .guide-steps li,
  .tl-body,
  .story-card,
  .contact-form,
  .contact-info,
  .seo-article {
    padding: 22px;
    border-radius: 16px;
  }

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

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

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

  .footer-legal {
    flex-wrap: wrap;
    gap: 12px;
  }

  .timeline li {
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 12px;
  }

  .timeline li::before {
    left: 13px;
  }

  .tl-dot {
    width: 14px;
    height: 14px;
    border-width: 3px;
  }

  .faq-item summary {
    padding: 16px 18px;
    padding-right: 46px;
    font-size: 15px;
  }

  .faq-body {
    padding: 0 18px 18px;
    font-size: 14px;
  }

  .form-row input,
  .form-row select,
  .form-row textarea {
    padding: 11px 12px;
  }
}

/* ---------- 减少动画偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}