/* ==========================================================================
   涵优馆 · 品质生活会员超市  —  全站样式
   主题：暖色渐变（橙 → 珊瑚 → 玫红 → 紫），与品牌 logo 同源取色
   ========================================================================== */

/* ---------- 设计令牌 ---------- */
:root {
  /* 品牌色阶（自 logo 采样：#FDB032 / #F8595F / #E532A2 / #CF43E0） */
  --c-ink-deep: #3A0B4F;   /* 页脚 / 最深 */
  --c-deep:     #5A1272;   /* 深色分区 */
  --c-dark:     #8E1A6E;   /* 标题 / 悬停 */
  --c-primary:  #E8308A;   /* 主品牌色 */
  --c-mid:      #F0567E;   /* 二级标题、强调文字 */
  --c-soft:     #F5814F;   /* 序号、圆点 */
  --c-light:    #FBB98A;
  --c-pale:     #FBD3E2;   /* 幽灵数字、描边 */
  --c-tint:     #FDEDF2;   /* 隔行浅底 */
  --c-page:     #FFFAF7;   /* 页面底色 */

  /* 点缀与中性 */
  --c-accent: #FFD24A;     /* logo 星星/笑脸黄，用于深底数字 */
  --c-gold:   #F7941E;
  --ink:      #33132E;
  --muted:    #7E6379;
  --muted-2:  #A48AA0;
  --paper:    #FFFFFF;
  --line:     rgba(232, 48, 138, .16);
  --line-2:   rgba(232, 48, 138, .09);

  --shadow-s: 0 2px 10px rgba(90, 18, 80, .07);
  --shadow-m: 0 10px 30px rgba(90, 18, 80, .11);
  --shadow-l: 0 22px 56px rgba(90, 18, 80, .18);

  /* 品牌渐变 */
  --grad-brand: linear-gradient(118deg, #FBAE2C 0%, #F86A3F 26%, #EF3D84 58%, #C93BE0 100%);
  --grad-btn:   linear-gradient(118deg, #F7773A 0%, #EA2E86 55%, #C93BE0 100%);
  --grad-dark:  linear-gradient(135deg, #4A0F63 0%, #6E1571 45%, #A81E79 100%);

  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", STSong, "SimSun-ExtB", SimSun, serif;
  --sans:  "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Noto Sans SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;

  --nav-h: 70px;
  --maxw: 1200px;
  --radius: 4px;
}

/* ---------- 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  font-family: var(--sans);
  background: var(--c-page);
  color: var(--ink);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

/* ---------- 通用分区 ---------- */
.section { padding: 96px 5%; position: relative; }
.section-alt { background: var(--c-tint); }
.section-dark { background: var(--grad-dark); color: #FFEFF6; }

.sec-head { max-width: var(--maxw); margin: 0 auto 56px; text-align: center; }

.label {
  display: inline-block;
  font-size: 11px;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--c-mid);
  font-weight: 600;
  margin-bottom: 14px;
}
.section-dark .label { color: var(--c-accent); }

.sec-title {
  font-family: var(--serif);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 700;
  line-height: 1.35;
  color: var(--c-dark);
  letter-spacing: .02em;
  text-wrap: balance;
}
.section-dark .sec-title { color: #FFFFFF; }

.sec-sub {
  margin: 16px auto 0;
  max-width: 620px;
  font-size: 15px;
  color: var(--muted);
}
.section-dark .sec-sub { color: rgba(255, 239, 246, .74); }

.lead { font-size: 16px; color: var(--ink); line-height: 1.95; }
.para { font-size: 14.5px; color: var(--muted); line-height: 1.95; margin-top: 16px; }

/* ---------- 滚动淡入 ---------- */
.fade-up {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s cubic-bezier(.22, .61, .36, 1), transform .8s cubic-bezier(.22, .61, .36, 1);
  will-change: opacity, transform;
}
.fade-up.visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .fade-up { opacity: 1; transform: none; transition: none; }
}

/* ==========================================================================
   导航
   ========================================================================== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: rgba(255, 250, 247, .92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--line-2);
  transition: box-shadow .3s ease, background .3s ease;
}
.nav.scrolled { background: rgba(255, 255, 255, .96); box-shadow: var(--shadow-s); }

.nav-inner {
  height: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 4%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.brand { display: flex; align-items: center; gap: 11px; }
.brand-mark {
  width: 42px; height: 42px;
  flex: none;
  display: block;
  border-radius: 9px;
  box-shadow: 0 3px 10px rgba(140, 30, 110, .18);
}
.brand-text {
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--c-dark);
}

.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a {
  position: relative;
  font-size: 14px;
  color: var(--muted);
  font-weight: 500;
  transition: color .22s ease;
  padding: 6px 0;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--grad-btn);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .28s ease;
}
.nav-links a:hover,
.nav-links a.active { color: var(--c-primary); }
.nav-links a:hover::after,
.nav-links a.active::after { transform: scaleX(1); }

.nav-toggle { display: none; width: 40px; height: 40px; position: relative; }
.nav-toggle span {
  display: block;
  width: 22px; height: 2px;
  margin: 5px auto;
  background: var(--c-dark);
  border-radius: 2px;
  transition: transform .3s ease, opacity .2s ease;
}
.nav.open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav.open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav.open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ==========================================================================
   首屏
   ========================================================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-h) + 60px) 5% 150px;
  overflow: hidden;
  color: #fff;
}
.hero-bg {
  position: absolute; inset: 0;
  background: url("../assets/img/hero.jpg") center 42% / cover no-repeat;
  transform: scale(1.04);
  animation: heroZoom 16s ease-out forwards;
}
@keyframes heroZoom { to { transform: scale(1); } }

.hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(94deg,
      rgba(58, 11, 79, .93) 0%,
      rgba(116, 20, 108, .82) 28%,
      rgba(206, 34, 122, .52) 56%,
      rgba(243, 104, 82, .26) 80%,
      rgba(251, 174, 44, .08) 100%),
    linear-gradient(180deg, rgba(58, 11, 79, .26) 0%, rgba(58, 11, 79, 0) 30%, rgba(58, 11, 79, .34) 100%);
}

.hero-content { position: relative; z-index: 2; max-width: 780px; margin-left: 5%; }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 18px 8px 10px;
  border: 1px solid rgba(255, 255, 255, .34);
  border-radius: 999px;
  background: rgba(255, 255, 255, .10);
  font-size: 13px;
  letter-spacing: .16em;
  margin-bottom: 28px;
}
.eyebrow-mark { width: 26px; height: 26px; border-radius: 6px; display: block; flex: none; }

.hero-title {
  font-family: var(--serif);
  font-size: clamp(42px, 6.6vw, 76px);
  font-weight: 900;
  line-height: 1.18;
  letter-spacing: .04em;
  text-shadow: 0 4px 26px rgba(58, 11, 79, .42);
}
.hero-title em { font-style: normal; color: var(--c-accent); }

.hero-slogan {
  margin-top: 22px;
  font-family: var(--serif);
  font-size: clamp(17px, 2.1vw, 23px);
  letter-spacing: .3em;
  color: #FFE0EC;
}

.hero-desc {
  margin-top: 18px;
  padding-left: 18px;
  border-left: 3px solid var(--c-soft);
  font-size: 15px;
  line-height: 1.95;
  color: rgba(255, 255, 255, .88);
  max-width: 580px;
}

.hero-roles { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.role-tag {
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(255, 255, 255, .13);
  border: 1px solid rgba(255, 255, 255, .22);
  font-size: 13px;
  color: #FFF1F7;
  backdrop-filter: blur(4px);
}

.btn-primary {
  display: inline-block;
  margin-top: 40px;
  padding: 16px 46px;
  background: var(--grad-btn);
  background-size: 180% 100%;
  background-position: 0% 50%;
  color: #fff;
  font-size: 15px;
  letter-spacing: .12em;
  border-radius: 999px;
  box-shadow: 0 12px 30px rgba(180, 30, 120, .38);
  transition: background-position .5s ease, transform .25s ease, box-shadow .25s ease;
}
.btn-primary:hover {
  background-position: 100% 50%;
  transform: translateY(-2px);
  box-shadow: 0 18px 38px rgba(180, 30, 120, .46);
}

.hero-stats {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: rgba(255, 255, 255, .10);
  border-top: 1px solid rgba(255, 255, 255, .20);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}
.stat { padding: 26px 5%; text-align: center; }
.stat-num {
  font-family: var(--serif);
  font-weight: 900;
  color: var(--c-accent);
  font-size: clamp(28px, 3.6vw, 42px);
  line-height: 1.1;
  display: block;
}
.stat-num b { font-weight: 900; }
.stat-num i { font-style: normal; font-size: .6em; margin-left: 2px; }
.stat-label {
  display: block;
  margin-top: 8px;
  font-size: 12.5px;
  letter-spacing: .12em;
  color: rgba(255, 255, 255, .80);
}

/* ==========================================================================
   品牌介绍
   ========================================================================== */
.about-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.about-media { position: relative; }
.about-media img {
  width: 100%;
  aspect-ratio: 5 / 4;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-m);
}
.about-badge {
  position: absolute;
  left: 0; bottom: -22px;
  background: var(--grad-btn);
  color: #fff;
  padding: 14px 26px;
  font-size: 13px;
  letter-spacing: .1em;
  border-radius: 0 var(--radius) var(--radius) 0;
  box-shadow: var(--shadow-m);
}

.about-body .sec-title { margin-bottom: 20px; }

.mission {
  margin: 26px 0 34px;
  padding: 4px 0 4px 20px;
  border-left: 3px solid var(--c-gold);
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.85;
  color: var(--c-dark);
}

.feature-list { display: grid; gap: 22px; }
.feature-list li { display: flex; gap: 16px; align-items: flex-start; }
.fi-icon {
  flex: none;
  width: 44px; height: 44px;
  display: grid; place-items: center;
  background: var(--c-tint);
  color: var(--c-primary);
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 700;
  border-radius: var(--radius);
  transition: color .3s ease, transform .3s ease, box-shadow .3s ease;
}
.feature-list li:hover .fi-icon {
  background: var(--grad-btn);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 18px rgba(180, 30, 120, .28);
}
.feature-list b { display: block; font-size: 15.5px; color: var(--ink); font-weight: 600; }
.feature-list p { margin-top: 4px; font-size: 13.5px; color: var(--muted); line-height: 1.8; }

/* ==========================================================================
   品牌主张横幅
   ========================================================================== */
.poster { position: relative; height: 420px; overflow: hidden; display: flex; align-items: center; }
.poster-bg {
  position: absolute; inset: 0;
  background: url("../assets/img/poster-band.jpg") center / cover no-repeat;
}
.poster::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(94deg,
      rgba(58, 11, 79, .94) 0%,
      rgba(110, 20, 105, .82) 40%,
      rgba(200, 32, 122, .46) 72%,
      rgba(240, 90, 80, .16) 100%);
}
.poster-content { position: relative; z-index: 2; padding: 0 5%; max-width: var(--maxw); color: #fff; }
.poster-label { font-size: 12px; letter-spacing: .4em; color: var(--c-accent); margin-bottom: 14px; }
.poster-content h2 {
  font-family: var(--serif);
  font-size: clamp(30px, 4.6vw, 52px);
  font-weight: 900;
  letter-spacing: .06em;
}
.poster-content p { margin-top: 16px; font-size: 15.5px; color: rgba(255, 255, 255, .86); max-width: 520px; }

/* ==========================================================================
   门店与供应链
   ========================================================================== */
.stores-grid {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
}
.store-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  box-shadow: var(--shadow-m);
  background: var(--paper);
}
.store-card img { width: 100%; height: 300px; object-fit: cover; transition: transform .7s cubic-bezier(.22, .61, .36, 1); }
.store-card:hover img { transform: scale(1.06); }
.store-card figcaption { padding: 22px 26px; }
.store-card figcaption b { display: block; font-family: var(--serif); font-size: 19px; color: var(--c-dark); font-weight: 700; }
.store-card figcaption span { display: block; margin-top: 6px; font-size: 13.5px; color: var(--muted); line-height: 1.8; }
.store-wide { grid-column: 1 / -1; }
.store-wide img { height: 380px; }

/* ==========================================================================
   明星好物
   ========================================================================== */
.products-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.05fr;
  gap: 72px;
  align-items: center;
}
.products-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-m);
}
.products-body .sec-title { margin-bottom: 18px; }

.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.tag-cloud span {
  padding: 8px 18px;
  background: var(--c-tint);
  border: 1px solid var(--c-pale);
  border-radius: 999px;
  font-size: 13px;
  color: var(--c-dark);
  transition: background .25s ease, color .25s ease, transform .25s ease, border-color .25s ease;
}
.tag-cloud span:hover {
  background: var(--grad-btn);
  border-color: transparent;
  color: #fff;
  transform: translateY(-2px);
}

.product-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 36px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}
.product-stats b {
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 900;
  color: var(--c-primary);
  line-height: 1.1;
}
.product-stats b i { font-style: normal; font-size: .55em; margin-left: 2px; }
.product-stats span { display: block; margin-top: 6px; font-size: 12.5px; color: var(--muted); letter-spacing: .06em; }

/* ==========================================================================
   会员服务
   ========================================================================== */
.service-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.service-card {
  position: relative;
  padding: 40px 34px 36px;
  background: var(--paper);
  border-radius: var(--radius);
  box-shadow: var(--shadow-s);
  overflow: hidden;
  transition: transform .35s ease, box-shadow .35s ease;
}
.service-card::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 3px;
  background: var(--grad-btn);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .4s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); }
.service-card:hover::after { transform: scaleX(1); }
.ghost-num {
  display: block;
  font-family: var(--serif);
  font-size: 52px;
  font-weight: 900;
  line-height: 1;
  color: var(--c-pale);
  margin-bottom: 14px;
}
.service-card h3 { font-family: var(--serif); font-size: 22px; font-weight: 700; color: var(--c-dark); }
.service-card p { margin-top: 14px; font-size: 14px; line-height: 1.9; color: var(--muted); }

.chip-grid {
  max-width: var(--maxw);
  margin: 44px auto 0;
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
}
.chip-grid span {
  padding: 14px 10px;
  text-align: center;
  background: var(--paper);
  border: 1px solid var(--c-pale);
  border-radius: var(--radius);
  font-size: 13px;
  color: var(--c-dark);
  transition: background .25s ease, color .25s ease, transform .25s ease, border-color .25s ease;
}
.chip-grid span:hover {
  background: var(--grad-btn);
  border-color: transparent;
  color: #fff;
  transform: translateY(-2px);
}

/* ==========================================================================
   品质保障
   ========================================================================== */
.quality-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 64px;
  align-items: start;
}
.quality-media { position: relative; }
.quality-media img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-m);
}
.quality-caption {
  margin-top: 14px;
  padding: 12px 16px;
  background: var(--c-tint);
  border-left: 3px solid var(--c-primary);
  font-size: 12.5px;
  color: var(--c-dark);
  letter-spacing: .04em;
}
.quality-body .sec-title { margin-bottom: 28px; }

.standards-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px 30px; }
.standard { position: relative; padding-top: 8px; }
.standard b {
  display: block;
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 900;
  color: var(--c-soft);
  line-height: 1;
  margin-bottom: 10px;
}
.standard h4 { font-size: 16.5px; font-weight: 600; color: var(--ink); }
.standard p { margin-top: 7px; font-size: 13.5px; line-height: 1.85; color: var(--muted); }

.supply-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 36px; }
.supply-card {
  padding: 26px 20px;
  background: var(--grad-btn);
  border-radius: var(--radius);
  color: #fff;
  box-shadow: var(--shadow-s);
  transition: transform .3s ease, box-shadow .3s ease, filter .3s ease;
}
.supply-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-m); filter: saturate(1.12) brightness(1.04); }
.supply-card b { display: block; font-family: var(--serif); font-size: 34px; font-weight: 900; line-height: 1; color: #FFF0B8; }
.supply-card span { display: block; margin-top: 12px; font-size: 12.5px; line-height: 1.75; color: rgba(255, 255, 255, .92); }

/* ==========================================================================
   健康生活（深色区）
   ========================================================================== */
.health-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.health-media img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-l);
}
.health-body .sec-title { margin-bottom: 14px; }
.health-body .lead { color: var(--c-accent); font-family: var(--serif); font-size: 17px; letter-spacing: .06em; }

.health-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 32px; }
.health-card {
  position: relative;
  padding: 26px 22px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .14);
  border-radius: var(--radius);
  overflow: hidden;
  transition: background .3s ease, transform .3s ease, border-color .3s ease;
}
.health-card:hover { background: rgba(255, 255, 255, .14); transform: translateY(-3px); border-color: rgba(255, 210, 74, .45); }
.hc-num {
  position: absolute;
  right: 14px; top: 8px;
  font-family: var(--serif);
  font-size: 40px;
  font-weight: 900;
  color: rgba(255, 255, 255, .09);
  line-height: 1;
}
.health-card h4 { position: relative; font-size: 16.5px; font-weight: 600; color: #fff; }
.health-card p { position: relative; margin-top: 9px; font-size: 13px; line-height: 1.85; color: rgba(255, 239, 246, .76); }

/* ==========================================================================
   门店布局
   ========================================================================== */
.dev-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.dev-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-m);
}
.dev-body .sec-title { margin-bottom: 28px; }

.pillars { display: grid; gap: 20px; }
.pillar { display: flex; gap: 14px; align-items: flex-start; }
.pillar i {
  flex: none;
  width: 10px; height: 10px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--grad-btn);
  box-shadow: 0 0 0 4px var(--c-tint);
}
.pillar b { font-size: 15.5px; font-weight: 600; color: var(--ink); }
.pillar span { display: block; margin-top: 4px; font-size: 13.5px; color: var(--muted); line-height: 1.8; }

.dev-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 34px; }
.dev-stats div {
  padding: 24px 16px;
  text-align: center;
  background: var(--grad-btn);
  border-radius: var(--radius);
  box-shadow: var(--shadow-s);
  transition: transform .3s ease, box-shadow .3s ease, filter .3s ease;
}
.dev-stats div:hover { transform: translateY(-3px); box-shadow: var(--shadow-m); filter: brightness(1.05); }
.dev-stats b { display: block; font-family: var(--serif); font-size: 32px; font-weight: 900; color: #FFF0B8; line-height: 1; }
.dev-stats span { display: block; margin-top: 9px; font-size: 12.5px; letter-spacing: .1em; color: rgba(255, 255, 255, .92); }

/* ==========================================================================
   发展历程
   ========================================================================== */
.tl {
  max-width: 880px;
  margin: 0 auto;
  position: relative;
  padding-left: 132px;
}
.tl::before {
  content: "";
  position: absolute;
  left: 108px; top: 6px; bottom: 6px;
  width: 2px;
  background: linear-gradient(180deg, var(--c-soft), var(--c-pale));
}
.tl li { position: relative; padding: 0 0 40px 34px; }
.tl li:last-child { padding-bottom: 0; }
.tl li::before {
  content: "";
  position: absolute;
  left: -6px; top: 7px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--paper);
  border: 3px solid var(--c-mid);
  box-shadow: 0 0 0 4px var(--c-page);
  transition: background .3s ease, transform .3s ease;
}
.tl li:hover::before { background: var(--c-primary); transform: scale(1.15); }
.tl-year {
  position: absolute;
  left: -132px; top: 0;
  width: 96px;
  text-align: right;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 900;
  color: var(--c-primary);
  letter-spacing: .02em;
}
.tl-body b { display: block; font-size: 16.5px; font-weight: 600; color: var(--ink); }
.tl-body p { margin-top: 6px; font-size: 13.5px; line-height: 1.85; color: var(--muted); }

/* ==========================================================================
   合作共赢
   ========================================================================== */
.coop-wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: .85fr 1.15fr;
  gap: 48px;
  align-items: center;
}
.coop-media { position: relative; }
.coop-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  box-shadow: var(--shadow-m);
}
.coop-media-note {
  margin-top: 16px;
  padding: 14px 18px;
  background: var(--paper);
  border-left: 3px solid var(--c-primary);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--muted);
}
.coop-media-note b { font-family: var(--serif); font-size: 17px; color: var(--c-primary); margin: 0 2px; }

.coop-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.coop-card {
  position: relative;
  padding: 36px 34px;
  background: var(--paper);
  border: 1px solid var(--line-2);
  border-radius: var(--radius);
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.coop-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); border-color: var(--c-pale); }
.coop-badge {
  display: inline-block;
  padding: 5px 14px;
  background: var(--c-tint);
  color: var(--c-primary);
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: .1em;
  margin-bottom: 16px;
}
.coop-card h3 { font-family: var(--serif); font-size: 21px; font-weight: 700; color: var(--c-dark); }
.coop-card p { margin-top: 12px; font-size: 14px; line-height: 1.9; color: var(--muted); }

/* ==========================================================================
   页脚
   ========================================================================== */
.footer { background: var(--c-ink-deep); color: rgba(255, 239, 246, .82); padding: 76px 5% 0; position: relative; }
.footer::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad-brand);
}
.footer-top {
  max-width: var(--maxw);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 72px;
  padding-bottom: 54px;
}
.footer-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 20px; }
.footer-logo img { width: 46px; height: 46px; flex: none; display: block; border-radius: 10px; }
.footer-logo span { font-family: var(--serif); font-size: 24px; font-weight: 700; letter-spacing: .14em; color: #fff; }
.footer-desc { font-size: 14px; line-height: 1.95; max-width: 460px; color: rgba(255, 239, 246, .70); }

.footer-info { margin-top: 28px; display: grid; gap: 12px; }
.footer-info li { position: relative; padding-left: 16px; font-size: 13.5px; color: rgba(255, 239, 246, .80); }
.footer-info li::before {
  content: "";
  position: absolute;
  left: 0; top: 10px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--c-mid);
}
.footer-info b { font-weight: 600; color: #fff; margin-right: 12px; letter-spacing: .06em; }

.footer-nav h4 { font-size: 14px; font-weight: 600; color: #fff; letter-spacing: .14em; margin-bottom: 22px; }
.footer-nav { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px 24px; align-content: start; }
.footer-nav a { font-size: 13.5px; color: rgba(255, 239, 246, .70); transition: color .22s ease, padding-left .22s ease; }
.footer-nav a:hover { color: var(--c-accent); padding-left: 5px; }

.footer-bottom {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 24px 0;
  border-top: 1px solid rgba(255, 255, 255, .12);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: rgba(255, 239, 246, .54);
}
.footer-bottom .icp {
  color: rgba(255, 239, 246, .66);
  border-bottom: 1px solid transparent;
  transition: color .22s ease, border-bottom-color .22s ease;
}
.footer-bottom .icp:hover {
  color: var(--c-accent);
  border-bottom-color: var(--c-accent);
}

/* ---------- 回到顶部 ---------- */
.to-top {
  position: fixed;
  right: 28px; bottom: 28px;
  z-index: 90;
  width: 46px; height: 46px;
  border-radius: 50%;
  background: var(--grad-btn);
  color: #fff;
  font-size: 18px;
  box-shadow: 0 10px 26px rgba(180, 30, 120, .34);
  opacity: 0;
  visibility: hidden;
  transform: translateY(14px);
  transition: opacity .3s ease, transform .3s ease, filter .3s ease, visibility .3s;
}
.to-top.show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { filter: brightness(1.08); transform: translateY(-2px); }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1080px) {
  .nav-links { gap: 22px; }
  .nav-links a { font-size: 13px; }
  .about-grid, .products-grid, .quality-grid, .health-grid, .dev-grid { gap: 44px; }
}

@media (max-width: 960px) {
  .section { padding: 72px 6%; }
  .sec-head { margin-bottom: 42px; }

  .nav-links {
    position: absolute;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-m);
    max-height: 0;
    overflow: hidden;
    transition: max-height .4s cubic-bezier(.22, .61, .36, 1);
  }
  .nav.open .nav-links { max-height: 420px; }
  .nav-links a {
    padding: 15px 6%;
    font-size: 15px;
    border-top: 1px solid var(--line-2);
  }
  .nav-links a::after { display: none; }
  .nav-toggle { display: block; }

  .hero { padding: calc(var(--nav-h) + 40px) 6% 190px; }
  .hero-content { margin-left: 0; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .stat { padding: 20px 4%; }

  .about-grid, .products-grid, .quality-grid, .health-grid, .dev-grid,
  .footer-top, .coop-wrap { grid-template-columns: 1fr; }
  .coop-wrap { gap: 34px; }
  .about-badge { bottom: -18px; }
  .products-grid { gap: 36px; }
  .stores-grid { grid-template-columns: 1fr; }
  .store-wide { grid-column: auto; }
  .service-grid { grid-template-columns: 1fr; }
  .chip-grid { grid-template-columns: repeat(3, 1fr); }
  .supply-grid { grid-template-columns: 1fr; gap: 12px; }
  .poster { height: 340px; }

  .tl { padding-left: 0; }
  .tl::before { left: 5px; }
  .tl li { padding: 0 0 34px 32px; }
  .tl li::before { left: 0; }
  .tl-year { position: static; display: block; text-align: left; width: auto; margin-bottom: 4px; }
}

@media (max-width: 600px) {
  .section { padding: 60px 6%; }
  .brand { gap: 9px; }
  .brand-text { font-size: 18px; }
  .brand-mark { width: 36px; height: 36px; border-radius: 8px; }
  .hero { padding-bottom: 210px; }
  .hero-eyebrow { font-size: 11px; letter-spacing: .1em; padding: 6px 14px 6px 8px; }
  .eyebrow-mark { width: 22px; height: 22px; }
  .hero-desc br { display: none; }
  .hero-desc { font-size: 14px; }
  .role-tag { font-size: 12px; padding: 7px 13px; }
  .btn-primary { margin-top: 30px; padding: 15px 30px; width: 100%; max-width: 300px; text-align: center; }
  .chip-grid { grid-template-columns: repeat(2, 1fr); }
  .coop-grid { grid-template-columns: 1fr; }
  .product-stats { gap: 10px; }
  .product-stats b { font-size: 26px; }
  .poster { height: 300px; }
  .poster-content h2 { letter-spacing: .03em; }
  .store-card img { height: 220px; }
  .store-wide img { height: 220px; }
  .footer-nav { grid-template-columns: 1fr; }
  .footer-bottom { justify-content: center; text-align: center; }
  .to-top { right: 16px; bottom: 16px; width: 42px; height: 42px; }
}