/* ==========================================================================
   合衣定制 HEYI BESPOKE — 企业官网设计系统
   主色 #00437C · 辅色 #B5AA98 · 简约大气
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. 设计令牌
   -------------------------------------------------------------------------- */
:root {
  /* 品牌主色 — 合衣蓝 */
  --brand-900: #001E38;
  --brand-800: #002E56;
  --brand: #00437C;
  --brand-600: #00538F;
  --brand-500: #0A64A8;
  --brand-200: #B9D0E4;
  --brand-100: #E3EDF5;
  --brand-50: #F2F7FB;

  /* 辅助色 — 暖灰米（鎏金质感） */
  --sand-700: #8E8271;
  --sand: #B5AA98;
  --sand-300: #D3CABA;
  --sand-200: #E4DCCF;
  --sand-100: #F0EAE1;
  --sand-50: #F8F5F0;

  /* 中性 */
  --ink: #12171C;
  --ink-2: #454E59;
  --ink-3: #79838F;
  --ink-4: #A7AEB8;
  --line: #E5E8EC;
  --line-2: #EFF1F4;
  --white: #FFFFFF;
  --bg: #FFFFFF;
  --bg-alt: #F7F8FA;

  /* 状态 */
  --ok: #1F7A4D;
  --warn: #B8860B;
  --err: #C0392B;

  /* 字体 */
  --font-display: "Source Han Serif SC", "Noto Serif SC", "Songti SC", "STSong", "SimSun", Georgia, serif;
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Hiragino Sans GB", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  /* 尺寸 */
  --container: 1240px;
  --container-narrow: 900px;
  --radius-s: 2px;
  --radius: 4px;
  --radius-l: 8px;

  /* 阴影 */
  --shadow-s: 0 1px 3px rgba(18, 23, 28, .05);
  --shadow: 0 4px 18px rgba(18, 23, 28, .07);
  --shadow-l: 0 18px 48px rgba(0, 34, 63, .12);

  /* 动效 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --header-h: 76px;
}

/* --------------------------------------------------------------------------
   2. 重置
   -------------------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; border: 0; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; color: inherit; }
ul, ol { margin: 0; padding: 0; list-style: none; }

h1, h2, h3, h4 {
  margin: 0;
  color: var(--ink);
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: .01em;
}

p { margin: 0; }

::selection { background: var(--brand); color: #fff; }

/* --------------------------------------------------------------------------
   3. 布局
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
}
.container-narrow { max-width: var(--container-narrow); }

.section { padding: 108px 0; position: relative; }
.section-sm { padding: 72px 0; }
.section-alt { background: var(--bg-alt); }
.section-sand { background: var(--sand-50); }
.section-brand { background: var(--brand); color: rgba(255, 255, 255, .78); }
.section-brand h1, .section-brand h2, .section-brand h3 { color: #fff; }

.grid { display: grid; gap: 32px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* --------------------------------------------------------------------------
   4. 排版组件
   -------------------------------------------------------------------------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--sand-700);
}
.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--sand);
}
.eyebrow--center { justify-content: center; }
.eyebrow--light { color: var(--sand-300); }
.eyebrow--light::before { background: var(--sand-300); }

.section-head { margin-bottom: 56px; max-width: 720px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head h2 {
  font-size: clamp(28px, 3.6vw, 40px);
  margin: 18px 0 20px;
}
.section-head p { font-size: 16px; color: var(--ink-3); line-height: 1.85; }
.section-brand .section-head p { color: rgba(255, 255, 255, .6); }

.lead { font-size: 17px; line-height: 1.9; color: var(--ink-2); }

/* 竖线装饰标题 */
.rule-title { display: flex; align-items: center; gap: 16px; }
.rule-title::after { content: ""; flex: 1; height: 1px; background: var(--line); }

/* --------------------------------------------------------------------------
   5. 按钮
   -------------------------------------------------------------------------- */
.btn {
  --btn-bg: var(--brand);
  --btn-fg: #fff;
  --btn-bd: var(--brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: 50px;
  padding: 0 30px;
  border: 1px solid var(--btn-bd);
  background: var(--btn-bg);
  color: var(--btn-fg);
  border-radius: var(--radius);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: .04em;
  cursor: pointer;
  transition: all .28s var(--ease);
  white-space: nowrap;
}
.btn:hover { background: var(--brand-600); border-color: var(--brand-600); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active { transform: translateY(0); }

.btn-ghost { --btn-bg: transparent; --btn-fg: var(--brand); --btn-bd: var(--brand-200); }
.btn-ghost:hover { background: var(--brand-50); border-color: var(--brand); color: var(--brand-800); box-shadow: none; }

.btn-light { --btn-bg: #fff; --btn-fg: var(--brand); --btn-bd: #fff; }
.btn-light:hover { background: var(--sand-100); border-color: var(--sand-100); color: var(--brand-800); }

.btn-outline-light { --btn-bg: transparent; --btn-fg: #fff; --btn-bd: rgba(255, 255, 255, .38); }
.btn-outline-light:hover { background: rgba(255, 255, 255, .1); border-color: rgba(255, 255, 255, .75); color: #fff; box-shadow: none; }

.btn-sand { --btn-bg: var(--sand); --btn-fg: #fff; --btn-bd: var(--sand); }
.btn-sand:hover { background: var(--sand-700); border-color: var(--sand-700); }

.btn-block { width: 100%; }
.btn-sm { height: 42px; padding: 0 22px; font-size: 14px; }
.btn-lg { height: 56px; padding: 0 38px; font-size: 16px; }
.btn[disabled] { opacity: .5; pointer-events: none; }

.btn-row { display: flex; flex-wrap: wrap; gap: 16px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 500;
  color: var(--brand);
  transition: gap .25s var(--ease);
}
.link-arrow::after { content: "→"; transition: transform .25s var(--ease); }
.link-arrow:hover { gap: 12px; }

/* --------------------------------------------------------------------------
   6. 顶部导航
   -------------------------------------------------------------------------- */
.header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background .35s var(--ease), box-shadow .35s var(--ease), height .35s var(--ease);
  background: transparent;
}
.header-inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { height: 40px; width: auto; transition: height .35s var(--ease); }
.brand .logo-dark { display: block; }
.brand .logo-white { display: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: .1em;
  color: var(--brand);
}
.brand-text span {
  font-size: 10px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  position: relative;
  padding: 10px 18px;
  font-size: 15px;
  color: var(--ink-2);
  transition: color .25s var(--ease);
}
.nav a::after {
  content: "";
  position: absolute;
  left: 18px; right: 18px; bottom: 4px;
  height: 2px;
  background: var(--brand);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav a:hover { color: var(--brand); }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }
.nav a.is-active { color: var(--brand); font-weight: 500; }

.header-actions { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.header-user {
  display: flex; align-items: center; gap: 10px;
  font-size: 14px; color: var(--ink-2);
}
.header-user .avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--brand-100); color: var(--brand);
  display: grid; place-items: center;
  font-size: 13px; font-weight: 600;
}

/* 透明态（在深色 Hero 上） */
.header.is-transparent .brand-text strong { color: #fff; }
.header.is-transparent .brand-text span { color: rgba(255, 255, 255, .6); }
.header.is-transparent .brand .logo-dark { display: none; }
.header.is-transparent .brand .logo-white { display: block; }
.header.is-transparent .nav a { color: rgba(255, 255, 255, .82); }
.header.is-transparent .nav a::after { background: var(--sand-300); }
.header.is-transparent .nav a:hover, .header.is-transparent .nav a.is-active { color: #fff; }
.header.is-transparent .header-user { color: rgba(255, 255, 255, .85); }
/* 透明态下的次要按钮（登录/注册）改成白色描边，避免深蓝字压在深色照片上 */
.header.is-transparent .header-actions .btn-ghost { --btn-fg: #fff; --btn-bd: rgba(255, 255, 255, .42); }
.header.is-transparent .header-actions .btn-ghost:hover {
  background: rgba(255, 255, 255, .14);
  border-color: rgba(255, 255, 255, .78);
  color: #fff;
  box-shadow: none;
}
.header.is-transparent .header-user .avatar { background: rgba(255, 255, 255, .18); color: #fff; }

/* 滚动后 */
.header.is-solid {
  background: rgba(255, 255, 255, .94);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  box-shadow: 0 1px 0 var(--line);
}
.header.is-solid .brand img { height: 34px; }

.nav-toggle {
  display: none;
  width: 42px; height: 42px;
  border: 0; background: transparent;
  cursor: pointer;
  padding: 0;
  position: relative;
}
.nav-toggle span {
  position: absolute;
  left: 10px; right: 10px;
  height: 1.5px;
  background: var(--ink);
  transition: all .3s var(--ease);
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 27px; }
.header.is-transparent .nav-toggle span { background: #fff; }
.nav-toggle.is-open span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: calc(var(--header-h) + 72px) 0 96px;
  background: var(--brand-900);
  color: #fff;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transform: scale(1.02);
  will-change: transform;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(100deg, rgba(0, 30, 56, .96) 0%, rgba(0, 43, 78, .86) 42%, rgba(0, 43, 78, .42) 72%, rgba(0, 30, 56, .3) 100%);
}
.hero > .container { position: relative; z-index: 2; }

.hero-inner { max-width: 760px; }
.hero h1 {
  font-size: clamp(36px, 5.6vw, 68px);
  line-height: 1.18;
  color: #fff;
  letter-spacing: .02em;
  margin: 26px 0 0;
  font-weight: 500;
}
.hero h1 em {
  font-style: normal;
  color: var(--sand-300);
}
.hero-sub {
  margin-top: 28px;
  font-size: 17px;
  line-height: 2;
  color: rgba(255, 255, 255, .74);
  max-width: 620px;
}
.hero .btn-row { margin-top: 44px; }

.hero-stats {
  margin-top: 80px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, .16);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.hero-stat b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(26px, 3vw, 38px);
  font-weight: 600;
  color: #fff;
  line-height: 1.1;
  letter-spacing: .02em;
}
.hero-stat span {
  display: block;
  margin-top: 10px;
  font-size: 13px;
  color: rgba(255, 255, 255, .55);
  letter-spacing: .08em;
}

/* 内页 Hero */
.page-hero {
  position: relative;
  padding: calc(var(--header-h) + 96px) 0 92px;
  background: var(--brand-800);
  color: #fff;
  overflow: hidden;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 40%;
  opacity: .28;
}
.page-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(0, 30, 56, .92), rgba(0, 46, 86, .55));
}
.page-hero > .container { position: relative; z-index: 2; }
.page-hero h1 {
  font-size: clamp(30px, 4.2vw, 48px);
  color: #fff;
  font-weight: 500;
  margin: 20px 0 18px;
}
.page-hero p {
  max-width: 620px;
  color: rgba(255, 255, 255, .68);
  font-size: 16px;
  line-height: 1.9;
}
.breadcrumb {
  display: flex; align-items: center; gap: 10px;
  font-size: 13px; color: rgba(255, 255, 255, .5);
  margin-top: 28px; letter-spacing: .06em;
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-style: normal; opacity: .5; }

/* --------------------------------------------------------------------------
   8. 卡片
   -------------------------------------------------------------------------- */
.card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 34px;
  transition: all .34s var(--ease);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--sand);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform .4s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-l); border-color: transparent; }
.card:hover::before { transform: scaleY(1); }

.card-num {
  font-family: var(--font-display);
  font-size: 15px;
  letter-spacing: .2em;
  color: var(--sand);
  font-weight: 600;
}
.card h3 { font-size: 21px; margin: 18px 0 14px; }
.card p { font-size: 15px; line-height: 1.85; color: var(--ink-3); }
.card ul { margin-top: 20px; display: flex; flex-direction: column; gap: 9px; }
.card ul li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  color: var(--ink-2);
}
.card ul li::before {
  content: "";
  position: absolute;
  left: 0; top: 11px;
  width: 6px; height: 1px;
  background: var(--sand);
}

/* 图片卡 */
.media-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--brand-900);
  display: block;
  aspect-ratio: 4 / 5;
}
.media-card img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .8s var(--ease);
}
.media-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 25, 46, .9) 0%, rgba(0, 25, 46, .35) 42%, rgba(0, 25, 46, 0) 72%);
  transition: opacity .4s var(--ease);
}
.media-card:hover img { transform: scale(1.05); }
.media-card-body {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 32px 30px;
  z-index: 2;
  color: #fff;
}
.media-card-body h3 { color: #fff; font-size: 22px; margin-bottom: 10px; }
.media-card-body p { font-size: 14px; color: rgba(255, 255, 255, .7); line-height: 1.75; }
.media-card-tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 12px;
  border: 1px solid var(--sand);
  color: var(--sand-300);
  font-size: 11px;
  letter-spacing: .18em;
  border-radius: 2px;
}

/* 产品条目 */
.product-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  align-items: stretch;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 32px;
  background: #fff;
}
.product-item:nth-child(even) .product-media { order: 2; }
.product-media { position: relative; min-height: 380px; background: var(--brand-900); }
.product-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.product-body { padding: 54px 52px; display: flex; flex-direction: column; justify-content: center; }
.product-body h3 { font-size: 26px; margin: 16px 0 16px; }
.product-body p { font-size: 15px; line-height: 1.9; color: var(--ink-2); }
.spec-list { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; }
.spec-list span {
  padding: 6px 14px;
  background: var(--brand-50);
  color: var(--brand);
  border-radius: 2px;
  font-size: 13px;
}

/* --------------------------------------------------------------------------
   9. 流程
   -------------------------------------------------------------------------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; position: relative; }
.step { position: relative; padding: 0 22px; text-align: center; }
.step::before {
  content: "";
  position: absolute;
  top: 27px; left: calc(50% + 34px); right: calc(-50% + 34px);
  height: 1px;
  background: var(--line);
}
.step:last-child::before { display: none; }
.step-dot {
  width: 54px; height: 54px;
  margin: 0 auto;
  border: 1px solid var(--brand-200);
  border-radius: 50%;
  display: grid; place-items: center;
  background: #fff;
  position: relative;
  z-index: 2;
  font-family: var(--font-display);
  font-size: 18px;
  color: var(--brand);
  transition: all .35s var(--ease);
}
.step:hover .step-dot { background: var(--brand); color: #fff; border-color: var(--brand); }
.step h4 { margin: 24px 0 10px; font-size: 17px; font-family: var(--font-sans); font-weight: 600; }
.step p { font-size: 13.5px; color: var(--ink-3); line-height: 1.8; }
.steps--light .step-dot { background: transparent; border-color: rgba(255, 255, 255, .3); color: var(--sand-300); }
.steps--light .step:hover .step-dot { background: var(--sand); border-color: var(--sand); color: var(--brand-900); }
.steps--light .step::before { background: rgba(255, 255, 255, .16); }
.steps--light h4 { color: #fff; }
.steps--light p { color: rgba(255, 255, 255, .55); }

/* --------------------------------------------------------------------------
   10. 特性 / 数据
   -------------------------------------------------------------------------- */
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; }
.stat {
  padding: 8px 30px;
  border-left: 1px solid var(--line);
}
.stat:first-child { border-left: 0; padding-left: 0; }
.stat b {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(30px, 3.4vw, 44px);
  font-weight: 600;
  color: var(--brand);
  line-height: 1.1;
}
.stat b i { font-style: normal; font-size: .5em; margin-left: 4px; color: var(--sand-700); }
.stat span { display: block; margin-top: 12px; font-size: 14px; color: var(--ink-3); line-height: 1.7; }
.stat-row--light .stat { border-color: rgba(255, 255, 255, .16); }
.stat-row--light .stat b { color: #fff; }
.stat-row--light .stat b i { color: var(--sand-300); }
.stat-row--light .stat span { color: rgba(255, 255, 255, .55); }

/* 供应链 logo 墙 */
.partner-wall {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .14);
}
.partner {
  background: var(--brand-800);
  padding: 34px 20px;
  text-align: center;
  transition: background .3s var(--ease);
}
.partner:hover { background: var(--brand-600); }
.partner strong {
  display: block;
  font-family: var(--font-display);
  font-size: 19px;
  color: #fff;
  letter-spacing: .06em;
}
.partner span { display: block; margin-top: 8px; font-size: 11px; letter-spacing: .16em; color: rgba(255, 255, 255, .42); text-transform: uppercase; }

/* --------------------------------------------------------------------------
   11. 画廊
   -------------------------------------------------------------------------- */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.gallery-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  background: var(--brand-900);
  aspect-ratio: 4 / 5;
  cursor: pointer;
}
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform .9s var(--ease); }
.gallery-item::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0, 25, 46, .82), rgba(0, 25, 46, 0) 62%);
  opacity: 0;
  transition: opacity .4s var(--ease);
}
.gallery-item:hover img { transform: scale(1.06); }
.gallery-item:hover::after { opacity: 1; }
.gallery-item figcaption {
  position: absolute;
  left: 28px; right: 28px; bottom: 26px;
  z-index: 2;
  color: #fff;
  transform: translateY(12px);
  opacity: 0;
  transition: all .4s var(--ease);
}
.gallery-item:hover figcaption { transform: none; opacity: 1; }
.gallery-item figcaption strong { display: block; font-size: 17px; font-family: var(--font-display); }
.gallery-item figcaption span { font-size: 12px; letter-spacing: .16em; color: var(--sand-300); }

.gallery--wide { grid-template-columns: repeat(4, 1fr); }
.gallery-item--wide { aspect-ratio: 3 / 4; }
@media (min-width: 1100px) { .gallery-item--tall { grid-row: span 2; aspect-ratio: auto; } }

/* --------------------------------------------------------------------------
   12. 双栏内容
   -------------------------------------------------------------------------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.split--reverse .split-media { order: 2; }
.split-media { position: relative; }
.split-media img { width: 100%; border-radius: var(--radius); }
.split-media--offset::after {
  content: "";
  position: absolute;
  inset: 26px -26px -26px 26px;
  border: 1px solid var(--sand-300);
  border-radius: var(--radius);
  z-index: -1;
}
.split-body h2 { font-size: clamp(26px, 3.2vw, 36px); margin: 18px 0 24px; }
.split-body p { font-size: 16px; line-height: 2; color: var(--ink-2); margin-bottom: 18px; }
.split-body .btn-row { margin-top: 34px; }

.mini-list { margin-top: 30px; display: flex; flex-direction: column; gap: 18px; }
.mini-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  font-size: 15px;
  line-height: 1.8;
}
.mini-list li b {
  flex-shrink: 0;
  width: 30px; height: 30px;
  border-radius: 50%;
  background: var(--brand-50);
  color: var(--brand);
  display: grid; place-items: center;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: -.02em;
  margin-top: 3px;
}
.mini-list li strong { color: var(--ink); display: block; margin-bottom: 2px; font-weight: 600; }
.mini-list li span { color: var(--ink-3); font-size: 14px; }

/* --------------------------------------------------------------------------
   13. CTA 区块
   -------------------------------------------------------------------------- */
.cta-band {
  position: relative;
  padding: 92px 0;
  background: var(--brand-800);
  color: #fff;
  overflow: hidden;
}
.cta-band-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .18; }
.cta-band::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0, 30, 56, .95), rgba(0, 46, 86, .72));
}
.cta-band > .container { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 48px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; font-size: clamp(26px, 3.4vw, 38px); font-weight: 500; }
.cta-band p { margin-top: 16px; color: rgba(255, 255, 255, .64); font-size: 16px; max-width: 560px; }

/* --------------------------------------------------------------------------
   14. 表单
   -------------------------------------------------------------------------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.field { display: flex; flex-direction: column; gap: 9px; }
.field--full { grid-column: 1 / -1; }
.field label {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--ink);
  letter-spacing: .02em;
}
.field label .req { color: var(--err); margin-left: 3px; }
.field input, .field select, .field textarea {
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  font-size: 15px;
  color: var(--ink);
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
  font-family: var(--font-sans);
}
.field textarea { resize: vertical; min-height: 118px; line-height: 1.7; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: 0;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(0, 67, 124, .09);
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-4); }
.field select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2379838F' d='M6 8 0 0h12z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}
.field-hint { font-size: 12.5px; color: var(--ink-4); }
.field-error { font-size: 12.5px; color: var(--err); display: none; }
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: var(--err); }
.field.has-error .field-error { display: block; }

.checkbox-row { display: flex; align-items: flex-start; gap: 10px; font-size: 13.5px; color: var(--ink-3); line-height: 1.7; }
.checkbox-row input { width: 16px; height: 16px; margin-top: 4px; accent-color: var(--brand); flex-shrink: 0; }
.checkbox-row a { color: var(--brand); text-decoration: underline; text-underline-offset: 2px; }

.form-note { font-size: 13px; color: var(--ink-4); margin-top: 6px; }

.alert {
  display: none;
  padding: 13px 18px;
  border-radius: var(--radius);
  font-size: 14px;
  margin-bottom: 22px;
  border: 1px solid transparent;
  line-height: 1.7;
}
.alert.is-visible { display: block; }
.alert-ok { background: #EEF8F2; border-color: #CBE7D8; color: #1F7A4D; }
.alert-err { background: #FDF1EF; border-color: #F5D6D0; color: #C0392B; }
.alert-info { background: var(--brand-50); border-color: var(--brand-100); color: var(--brand); }

/* --------------------------------------------------------------------------
   15. 联系信息
   -------------------------------------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: 72px; align-items: start; }
.info-list { display: flex; flex-direction: column; gap: 0; }
.info-item {
  display: flex;
  gap: 18px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}
.info-item:first-child { padding-top: 0; }
.info-icon {
  width: 42px; height: 42px;
  flex-shrink: 0;
  border-radius: var(--radius);
  background: var(--brand-50);
  display: grid; place-items: center;
}
.info-icon svg { width: 19px; height: 19px; stroke: var(--brand); fill: none; stroke-width: 1.6; }
.info-item h4 { font-size: 14px; font-family: var(--font-sans); font-weight: 600; color: var(--ink); margin-bottom: 6px; letter-spacing: .04em; }
.info-item p { font-size: 15px; color: var(--ink-2); line-height: 1.8; }
.info-item p strong { font-size: 19px; font-family: var(--font-display); color: var(--brand); letter-spacing: .02em; }
.info-item small { display: block; font-size: 12.5px; color: var(--ink-4); margin-top: 4px; }

.map-frame {
  margin-top: 32px;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-alt);
  aspect-ratio: 16 / 9;
  position: relative;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 24px;
}
.map-frame-inner { max-width: 340px; }
.map-frame h4 { font-size: 16px; font-family: var(--font-sans); margin-bottom: 8px; }
.map-frame p { font-size: 13.5px; color: var(--ink-3); line-height: 1.8; }
.map-grid-bg {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line-2) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-2) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: .9;
}
.map-frame > * { position: relative; z-index: 2; }

/* --------------------------------------------------------------------------
   16. 认证页
   -------------------------------------------------------------------------- */
.auth-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  background: #fff;
}
.auth-aside {
  position: relative;
  background: var(--brand-900);
  color: #fff;
  padding: 64px 72px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
}
.auth-aside-bg { position: absolute; inset: 0; background-size: cover; background-position: center; opacity: .22; }
.auth-aside::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(160deg, rgba(0, 30, 56, .9), rgba(0, 46, 86, .62));
}
.auth-aside > * { position: relative; z-index: 2; }
.auth-aside h2 { color: #fff; font-size: clamp(26px, 2.6vw, 36px); font-weight: 500; line-height: 1.45; max-width: 420px; }
.auth-aside p { margin-top: 20px; color: rgba(255, 255, 255, .62); font-size: 15px; line-height: 1.9; max-width: 420px; }
.auth-perks { margin-top: 44px; display: flex; flex-direction: column; gap: 18px; }
.auth-perks li { display: flex; gap: 14px; align-items: center; font-size: 14.5px; color: rgba(255, 255, 255, .8); }
.auth-perks li i {
  width: 26px; height: 26px; flex-shrink: 0;
  border: 1px solid var(--sand); border-radius: 50%;
  display: grid; place-items: center;
  font-style: normal; font-size: 12px; color: var(--sand-300);
}
.auth-brand img { height: 44px; }

.auth-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 56px 48px;
  overflow-y: auto;
}
.auth-box { width: 100%; max-width: 396px; }
.auth-box h1 { font-size: 30px; margin-bottom: 10px; }
.auth-box > p { font-size: 14.5px; color: var(--ink-3); margin-bottom: 32px; }

.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 32px;
}
.tab {
  flex: 1;
  padding: 14px 8px;
  background: transparent;
  border: 0;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  font-size: 15px;
  color: var(--ink-3);
  cursor: pointer;
  transition: all .25s var(--ease);
}
.tab.is-active { color: var(--brand); border-color: var(--brand); font-weight: 500; }
.tab:hover { color: var(--brand); }

.auth-form { display: none; flex-direction: column; gap: 20px; }
.auth-form.is-active { display: flex; }
.auth-foot { margin-top: 26px; font-size: 13.5px; color: var(--ink-3); text-align: center; }
.auth-foot a { color: var(--brand); }
.auth-back { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--ink-3); margin-top: 34px; }
.auth-back:hover { color: var(--brand); }

/* --------------------------------------------------------------------------
   17. 会员中心
   -------------------------------------------------------------------------- */
.account-page { padding: calc(var(--header-h) + 56px) 0 96px; background: var(--bg-alt); min-height: 100vh; }
.account-layout { display: grid; grid-template-columns: 268px 1fr; gap: 32px; align-items: start; }

.side-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  position: sticky;
  top: calc(var(--header-h) + 24px);
}
.side-user {
  padding: 32px 28px;
  background: var(--brand);
  color: #fff;
  text-align: center;
}
.side-user .avatar-lg {
  width: 66px; height: 66px; margin: 0 auto 16px;
  border-radius: 50%;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .28);
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-size: 24px;
}
.side-user strong { display: block; font-size: 17px; font-family: var(--font-display); letter-spacing: .04em; }
.side-user span { display: block; margin-top: 6px; font-size: 12.5px; color: rgba(255, 255, 255, .6); }
.side-nav { padding: 12px; }
.side-nav button {
  display: flex; align-items: center; gap: 12px;
  width: 100%;
  padding: 13px 16px;
  border: 0;
  background: transparent;
  border-radius: var(--radius);
  font-size: 14.5px;
  color: var(--ink-2);
  cursor: pointer;
  text-align: left;
  transition: all .22s var(--ease);
}
.side-nav button:hover { background: var(--brand-50); color: var(--brand); }
.side-nav button.is-active { background: var(--brand); color: #fff; }
.side-nav button svg { width: 17px; height: 17px; stroke: currentColor; fill: none; stroke-width: 1.6; flex-shrink: 0; }
.side-nav hr { border: 0; border-top: 1px solid var(--line-2); margin: 10px 12px; }

.panel {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px 42px;
}
.panel + .panel { margin-top: 24px; }
.panel-head { display: flex; align-items: center; justify-content: space-between; gap: 24px; padding-bottom: 22px; border-bottom: 1px solid var(--line-2); margin-bottom: 30px; flex-wrap: wrap; }
.panel-head h2 { font-size: 21px; }
.panel-head p { font-size: 13.5px; color: var(--ink-3); margin-top: 6px; }

.tab-panel { display: none; }
.tab-panel.is-active { display: block; }

.data-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line-2); border: 1px solid var(--line-2); border-radius: var(--radius); overflow: hidden; }
.data-cell { background: #fff; padding: 22px 24px; }
.data-cell dt { font-size: 12.5px; color: var(--ink-4); letter-spacing: .06em; margin-bottom: 8px; }
.data-cell dd { margin: 0; font-size: 16px; color: var(--ink); font-weight: 500; }
.data-cell dd.empty { color: var(--ink-4); font-weight: 400; font-size: 14px; }

.empty-state { text-align: center; padding: 56px 24px; }
.empty-state-icon {
  width: 62px; height: 62px; margin: 0 auto 20px;
  border-radius: 50%;
  background: var(--brand-50);
  display: grid; place-items: center;
}
.empty-state-icon svg { width: 26px; height: 26px; stroke: var(--brand); fill: none; stroke-width: 1.4; }
.empty-state h4 { font-size: 16px; font-family: var(--font-sans); margin-bottom: 8px; }
.empty-state p { font-size: 13.5px; color: var(--ink-3); margin-bottom: 24px; }

.record-list { display: flex; flex-direction: column; gap: 14px; }
.record {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: all .25s var(--ease);
}
.record:hover { border-color: var(--brand-200); background: var(--brand-50); }
.record-main strong { display: block; font-size: 15px; color: var(--ink); }
.record-main span { display: block; font-size: 13px; color: var(--ink-3); margin-top: 4px; }
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  white-space: nowrap;
}
.badge-pending { background: #FFF6E5; color: #B8860B; }
.badge-done { background: #EEF8F2; color: #1F7A4D; }
.badge-processing { background: var(--brand-50); color: var(--brand); }

/* --------------------------------------------------------------------------
   18. FAQ
   -------------------------------------------------------------------------- */
.faq { display: flex; flex-direction: column; gap: 0; border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 26px 4px;
  background: transparent;
  border: 0;
  text-align: left;
  cursor: pointer;
  font-size: 16.5px;
  font-weight: 500;
  color: var(--ink);
  font-family: var(--font-sans);
  transition: color .25s var(--ease);
}
.faq-q:hover { color: var(--brand); }
.faq-q i {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border: 1px solid var(--line);
  border-radius: 50%;
  display: grid; place-items: center;
  font-style: normal;
  font-size: 15px;
  color: var(--ink-3);
  transition: all .3s var(--ease);
}
.faq-item.is-open .faq-q { color: var(--brand); }
.faq-item.is-open .faq-q i { background: var(--brand); border-color: var(--brand); color: #fff; transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s var(--ease);
}
.faq-a-inner { padding: 0 4px 28px; font-size: 15px; line-height: 1.9; color: var(--ink-3); max-width: 800px; }

/* --------------------------------------------------------------------------
   19. 页脚
   -------------------------------------------------------------------------- */
.footer { background: var(--brand-900); color: rgba(255, 255, 255, .6); padding: 76px 0 0; }
.footer-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.3fr; gap: 56px; padding-bottom: 56px; }
.footer-brand img { height: 46px; margin-bottom: 22px; }
.footer-brand p { font-size: 14px; line-height: 1.95; max-width: 320px; }
.footer h4 {
  color: #fff;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .1em;
  margin-bottom: 22px;
}
.footer-links { display: flex; flex-direction: column; gap: 13px; }
.footer-links a, .footer-links span { font-size: 14px; transition: color .25s var(--ease); }
.footer-links a:hover { color: var(--sand-300); }
.footer-contact li { display: flex; gap: 12px; font-size: 14px; line-height: 1.8; margin-bottom: 14px; }
.footer-contact li svg { width: 16px; height: 16px; stroke: var(--sand); fill: none; stroke-width: 1.5; flex-shrink: 0; margin-top: 5px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  padding: 26px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  font-size: 13px;
}
.footer-bottom a:hover { color: var(--sand-300); }
.footer-bottom-links { display: flex; gap: 24px; flex-wrap: wrap; }

/* --------------------------------------------------------------------------
   20. 通用小件
   -------------------------------------------------------------------------- */
.to-top {
  position: fixed;
  right: 32px; bottom: 32px;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--brand);
  color: #fff;
  border: 0;
  display: grid; place-items: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all .3s var(--ease);
  z-index: 90;
  box-shadow: var(--shadow-l);
}
.to-top.is-visible { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--brand-600); }
.to-top svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.8; }

.toast {
  position: fixed;
  left: 50%; bottom: 40px;
  transform: translate(-50%, 20px);
  background: var(--ink);
  color: #fff;
  padding: 14px 26px;
  border-radius: var(--radius);
  font-size: 14px;
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: all .35s var(--ease);
  box-shadow: var(--shadow-l);
  max-width: 90vw;
  text-align: center;
}
.toast.is-visible { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* 滚动进场动画 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: .1s; }
.reveal[data-delay="2"] { transition-delay: .2s; }
.reveal[data-delay="3"] { transition-delay: .3s; }
.reveal[data-delay="4"] { transition-delay: .4s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* --------------------------------------------------------------------------
   21. 响应式
   -------------------------------------------------------------------------- */
@media (max-width: 1080px) {
  .split { gap: 48px; }
  .contact-grid { gap: 44px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 44px; }
  .account-layout { grid-template-columns: 232px 1fr; gap: 24px; }
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 44px; }
  .step:nth-child(3)::before { display: none; }
}

@media (max-width: 900px) {
  :root { --header-h: 66px; }
  .section { padding: 76px 0; }
  .container, .header-inner { padding: 0 22px; }

  .nav {
    position: fixed;
    inset: var(--header-h) 0 auto;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #fff;
    padding: 12px 22px 26px;
    box-shadow: 0 20px 40px rgba(0, 34, 63, .12);
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all .3s var(--ease);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .nav a { padding: 15px 4px; border-bottom: 1px solid var(--line-2); color: var(--ink-2) !important; }
  .nav a::after { display: none; }
  .nav a.is-active { color: var(--brand) !important; }
  .nav-toggle { display: block; }
  .header.is-transparent.is-nav-open .nav-toggle span { background: var(--ink); }

  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .split--reverse .split-media { order: 0; }
  .split-media--offset::after { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .account-layout { grid-template-columns: 1fr; }
  .side-card { position: static; }
  .data-grid { grid-template-columns: 1fr; }
  .panel { padding: 30px 24px; }

  .hero { min-height: auto; padding: calc(var(--header-h) + 64px) 0 72px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 28px 20px; }
  .stat-row { grid-template-columns: repeat(2, 1fr); gap: 30px 0; }
  .stat { padding: 0 20px; }
  .stat:nth-child(odd) { border-left: 0; padding-left: 0; }

  .partner-wall { grid-template-columns: repeat(2, 1fr); }
  .gallery, .gallery--wide { grid-template-columns: repeat(2, 1fr); }
  .gallery-item--tall { grid-row: span 1; aspect-ratio: 4 / 5; }

  .product-item { grid-template-columns: 1fr; }
  .product-item:nth-child(even) .product-media { order: 0; }
  .product-media { min-height: 260px; aspect-ratio: 16 / 11; }
  .product-body { padding: 36px 28px; }

  .steps { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .step::before { display: none; }
  .step { padding: 0 10px; }

  .auth-page { grid-template-columns: 1fr; }
  .auth-aside { display: none; }
  .auth-panel { padding: 90px 24px 48px; }

  .cta-band > .container { flex-direction: column; align-items: flex-start; }
  .footer-top { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .to-top { right: 18px; bottom: 18px; }
}

@media (max-width: 560px) {
  .gallery, .gallery--wide { grid-template-columns: 1fr; }
  .partner-wall { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .hero h1 { font-size: 30px; }
  .btn-row { flex-direction: column; align-items: stretch; }
  .btn-row .btn { width: 100%; }
  .section-head { margin-bottom: 40px; }
  .brand-text { display: none; }
  .header-actions .btn-header-cta { display: none; }
}