/* ==================================================================
   年胜五金 · 官网样式
   设计语言：深色工业质感 + 铜色点缀，大字号排版，滚动动效
   目录：1 变量 / 2 基础 / 3 组件 / 4 头部 / 5 首屏 / 6 区块
        7 产品 / 8 页脚 / 9 内页 / 10 动效 / 11 响应式
   ================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  --ink: #080a0c;
  --ink-1: #0c1013;
  --ink-2: #12171c;
  --ink-3: #191f25;
  --paper: #f2eee7;
  --text: #e8e3d9;
  --muted: rgba(var(--text-rgb), 0.56);
  --muted-2: rgba(var(--text-rgb), 0.34);
  --line: rgba(var(--text-rgb), 0.12);
  --line-soft: rgba(var(--text-rgb), 0.07);
  --copper: #c8722f;
  --copper-2: #e8a355;
  --copper-glow: rgba(var(--copper-rgb), 0.22);

  /* 主题通道色：配合 rgba(var(--x-rgb), α) 实现深浅色自动适配 */
  --text-rgb: 232, 227, 217;
  --bg-rgb: 8, 10, 12;
  --surface-rgb: 18, 23, 28;
  --copper-rgb: 200, 114, 47;

  color-scheme: dark;

  --font: "Inter", "HarmonyOS Sans SC", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", system-ui, -apple-system, sans-serif;
  --font-num: "Helvetica Neue", "Inter", Arial, sans-serif;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);

  --header-h: 84px;
  --radius: 4px;
}

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

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* 全站细微噪点，提升质感 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 3;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='180' height='180' filter='url(%23n)'/%3E%3C/svg%3E");
}

body.no-scroll { overflow: hidden; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; color: inherit; }
input, textarea, select { font-family: inherit; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

p { margin: 0; }

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

::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--ink-1); }
::-webkit-scrollbar-thumb {
  background: #2a3238;
  border-radius: 10px;
  border: 2px solid var(--ink-1);
}
::-webkit-scrollbar-thumb:hover { background: var(--copper); }

/* ---------- 3. 通用组件 ---------- */
.container {
  width: min(1320px, 100% - 96px);
  margin-inline: auto;
}
@media (max-width: 768px) {
  .container { width: calc(100% - 44px); }
}

.section { position: relative; padding: 112px 0; }
@media (max-width: 900px) { .section { padding: 76px 0; } }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--copper-2);
}
.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.section-title {
  font-size: clamp(30px, 4vw, 54px);
  line-height: 1.18;
  letter-spacing: -0.02em;
  margin-top: 20px;
}
.section-title em {
  font-style: normal;
  color: var(--copper-2);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}
.section-head p {
  max-width: 420px;
  color: var(--muted);
  font-size: 15px;
}

/* 按钮 */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 17px 34px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: 999px;
  overflow: hidden;
  transition: color 0.4s var(--ease), border-color 0.4s var(--ease),
    transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
  will-change: transform;
}
.btn svg { transition: transform 0.45s var(--ease); }
.btn:hover svg { transform: translateX(5px); }

.btn--primary {
  background: var(--copper);
  color: #fff;
  box-shadow: 0 12px 34px -14px var(--copper);
}
.btn--primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, 0.34), transparent 80%);
  transform: translateX(-120%);
  transition: transform 0.75s var(--ease);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 20px 44px -16px var(--copper); }
.btn--primary:hover::after { transform: translateX(120%); }

.btn--ghost {
  border: 1px solid var(--line);
  color: var(--text);
}
.btn--ghost:hover {
  border-color: rgba(var(--text-rgb), 0.5);
  transform: translateY(-2px);
}

.btn--sm { padding: 12px 24px; font-size: 13px; }

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text);
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
  transition: color 0.3s, border-color 0.3s;
}
.link-arrow svg { transition: transform 0.4s var(--ease); }
.link-arrow:hover { color: var(--copper-2); border-color: var(--copper); }
.link-arrow:hover svg { transform: translate(4px, -4px); }

/* ---------- 4. 头部 ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  transition: background 0.45s var(--ease), border-color 0.45s, height 0.45s var(--ease),
    backdrop-filter 0.45s;
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  height: 68px;
  background: rgba(var(--bg-rgb), 0.82);
  backdrop-filter: blur(18px) saturate(140%);
  border-bottom-color: var(--line-soft);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 13px;
  flex-shrink: 0;
}
.logo__mark {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(var(--text-rgb), 0.28);
  border-radius: 50%;
  position: relative;
  transition: border-color 0.4s, transform 0.6s var(--ease);
}
.logo__mark::before {
  content: "";
  position: absolute;
  inset: 5px;
  border-radius: 50%;
  background: linear-gradient(140deg, var(--copper-2), var(--copper));
  opacity: 0.9;
}
.logo__mark span {
  position: relative;
  z-index: 1;
  font-family: var(--font-num);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: #100c08;
}
.logo:hover .logo__mark { border-color: var(--copper); transform: rotate(90deg); }
.logo__text { display: flex; flex-direction: column; line-height: 1.15; }
.logo__name { font-size: 19px; font-weight: 700; letter-spacing: 0.14em; }
.logo__sub {
  font-size: 9px;
  letter-spacing: 0.3em;
  color: var(--muted-2);
  text-transform: uppercase;
}

.nav { display: flex; align-items: center; gap: 38px; }
.nav a {
  position: relative;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: rgba(var(--text-rgb), 0.78);
  transition: color 0.3s;
  padding: 6px 0;
}
.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--copper);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.45s var(--ease);
}
.nav a:hover, .nav a.is-active { color: #fff; }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }

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

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 50%;
  position: relative;
}
.menu-toggle i {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 1.5px;
  background: var(--text);
  transform: translateX(-50%);
  transition: transform 0.4s var(--ease), opacity 0.3s;
}
.menu-toggle i:nth-child(1) { top: 17px; }
.menu-toggle i:nth-child(2) { top: 22px; }
.menu-toggle i:nth-child(3) { top: 27px; }
body.menu-open .menu-toggle i:nth-child(1) { transform: translateX(-50%) translateY(5px) rotate(45deg); }
body.menu-open .menu-toggle i:nth-child(2) { opacity: 0; }
body.menu-open .menu-toggle i:nth-child(3) { transform: translateX(-50%) translateY(-5px) rotate(-45deg); }

/* 移动端全屏菜单 */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 90;
  background: var(--ink-1);
  padding: calc(var(--header-h) + 40px) 22px 40px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  clip-path: circle(0% at calc(100% - 44px) 42px);
  transition: clip-path 0.7s var(--ease);
  pointer-events: none;
}
body.menu-open .mobile-menu {
  clip-path: circle(150% at calc(100% - 44px) 42px);
  pointer-events: auto;
}
.mobile-menu nav { display: flex; flex-direction: column; }
.mobile-menu nav a {
  font-size: 30px;
  font-weight: 600;
  padding: 16px 0;
  border-bottom: 1px solid var(--line-soft);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}
body.menu-open .mobile-menu nav a { opacity: 1; transform: none; }
.mobile-menu nav a:nth-child(1) { transition-delay: 0.16s; }
.mobile-menu nav a:nth-child(2) { transition-delay: 0.22s; }
.mobile-menu nav a:nth-child(3) { transition-delay: 0.28s; }
.mobile-menu nav a:nth-child(4) { transition-delay: 0.34s; }
.mobile-menu nav a:nth-child(5) { transition-delay: 0.4s; }
.mobile-menu nav a:nth-child(6) { transition-delay: 0.46s; }
.mobile-menu__foot { color: var(--muted); font-size: 13px; line-height: 2; }

/* ---------- 5. 首屏 Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
  padding-bottom: 48px;
  isolation: isolate;
}
.hero__bg {
  position: absolute;
  inset: -12% 0;
  z-index: -3;
  will-change: transform;
  background-image: var(--hero-img, url("/img/ph-hero.svg"));
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
html[data-theme="light"] .hero__bg {
  background-image: var(--hero-img, url("/img/ph-hero-light.svg"));
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  background: linear-gradient(180deg, rgba(var(--bg-rgb), 0.86) 0%, rgba(var(--bg-rgb), 0.42) 38%, rgba(var(--bg-rgb), 0.96) 100%);
}
.hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line), transparent);
}

.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 60px;
  align-items: end;
  padding-top: calc(var(--header-h) + 40px);
}
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 44px; }
}

.hero__title {
  font-size: clamp(42px, 7.2vw, 104px);
  line-height: 1.02;
  letter-spacing: -0.035em;
  font-weight: 600;
  margin: 26px 0 30px;
}
.hero__title .line { display: block; overflow: hidden; }
.hero__title .line > span {
  display: block;
  transform: translateY(110%);
  transition: transform 1.1s var(--ease);
}
.hero__title .line:nth-child(2) > span { transition-delay: 0.12s; }
.hero__title .line:nth-child(3) > span { transition-delay: 0.24s; }
body.is-loaded .hero__title .line > span { transform: none; }
.hero__title .accent {
  background: linear-gradient(100deg, var(--copper-2), #f6d7ab 40%, var(--copper));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero__sub {
  max-width: 520px;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.85;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.9s var(--ease) 0.5s, transform 0.9s var(--ease) 0.5s;
}
body.is-loaded .hero__sub { opacity: 1; transform: none; }

.hero__actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 40px;
  flex-wrap: wrap;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.9s var(--ease) 0.66s, transform 0.9s var(--ease) 0.66s;
}
body.is-loaded .hero__actions { opacity: 1; transform: none; }

/* 首屏右侧微信卡 */
.hero__card {
  background: rgba(var(--surface-rgb), 0.66);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 22px;
  backdrop-filter: blur(14px);
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s var(--ease) 0.8s, transform 1s var(--ease) 0.8s;
}
body.is-loaded .hero__card { opacity: 1; transform: none; }
.hero__card h4 {
  font-size: 13px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--copper-2);
  margin-bottom: 14px;
}
.hero__card img {
  width: 100%;
  border-radius: 6px;
  background: #fff;
  padding: 6px;
}
.hero__card p {
  margin-top: 14px;
  font-size: 12.5px;
  color: var(--muted);
  letter-spacing: 0.04em;
  text-align: center;
}
.hero__card p b { color: var(--text); letter-spacing: 0.08em; }

/* 首屏底部数据条 */
.hero__stats {
  margin-top: 64px;
  border-top: 1px solid var(--line);
  padding-top: 26px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 1s var(--ease) 0.9s, transform 1s var(--ease) 0.9s;
}
body.is-loaded .hero__stats { opacity: 1; transform: none; }
.stat__num {
  font-family: var(--font-num);
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  display: flex;
  align-items: baseline;
  gap: 3px;
}
.stat__num small { font-size: 14px; font-weight: 500; color: var(--copper-2); letter-spacing: 0; }
.stat__label {
  margin-top: 10px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--muted-2);
  text-transform: uppercase;
}

.scroll-hint {
  position: absolute;
  right: 32px;
  bottom: 120px;
  z-index: 4;
  writing-mode: vertical-rl;
  font-size: 10px;
  letter-spacing: 0.4em;
  color: var(--muted-2);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 14px;
}
.scroll-hint::after {
  content: "";
  width: 1px;
  height: 64px;
  background: linear-gradient(var(--copper), transparent);
  animation: scrollLine 2.4s var(--ease-in-out) infinite;
  transform-origin: top;
}
@keyframes scrollLine {
  0% { transform: scaleY(0); opacity: 0; }
  40% { transform: scaleY(1); opacity: 1; }
  100% { transform: scaleY(1); opacity: 0; }
}
@media (max-width: 1080px) { .scroll-hint { display: none; } }

/* ---------- 6. 跑马灯 ---------- */
.marquee {
  position: relative;
  border-block: 1px solid var(--line-soft);
  background: var(--ink-1);
  overflow: hidden;
  padding: 20px 0;
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 38s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__track span {
  display: inline-flex;
  align-items: center;
  gap: 30px;
  padding-right: 30px;
  font-size: clamp(20px, 2.4vw, 32px);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: rgba(var(--text-rgb), 0.3);
  white-space: nowrap;
}
.marquee__track span::after {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--copper);
  flex-shrink: 0;
}
.marquee__track span:nth-child(even) { color: transparent; -webkit-text-stroke: 1px rgba(var(--text-rgb), 0.26); }
@keyframes marquee {
  to { transform: translateX(-50%); }
}

/* ---------- 6.1 分类入口 ---------- */
.cats {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}
.cat-card {
  position: relative;
  grid-column: span 4;
  min-height: 320px;
  border-radius: 6px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  background: var(--ink-2);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  transition: transform 0.6s var(--ease), border-color 0.5s;
}
.cat-card:nth-child(1) { grid-column: span 6; min-height: 420px; }
.cat-card:nth-child(2) { grid-column: span 6; min-height: 420px; }
.cat-card__img {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.cat-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1.1s var(--ease), filter 0.6s;
  filter: saturate(0.75) brightness(0.72);
}
.cat-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 10, 12, 0.1) 20%, rgba(8, 10, 12, 0.88) 100%);
  z-index: 1;
}
.cat-card:hover { transform: translateY(-6px); border-color: rgba(var(--copper-rgb), 0.55); }
.cat-card:hover .cat-card__img img { transform: scale(1.07); filter: saturate(1) brightness(0.85); }
.cat-card__body { position: relative; z-index: 2; }
.cat-card__idx {
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--copper-2);
  margin-bottom: 12px;
  display: block;
}
.cat-card h3 { font-size: 26px; letter-spacing: 0.01em; }
.cat-card p {
  color: var(--muted);
  font-size: 13.5px;
  margin-top: 8px;
  max-width: 320px;
}
.cat-card__arrow {
  position: absolute;
  top: 26px;
  right: 26px;
  z-index: 2;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 50%;
  display: grid;
  place-items: center;
  transition: background 0.45s var(--ease), border-color 0.45s, transform 0.45s var(--ease);
}
.cat-card:hover .cat-card__arrow {
  background: var(--copper);
  border-color: var(--copper);
  transform: rotate(45deg);
}

/* ---------- 6.2 公司简介 ---------- */
.about-split {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 90px;
  align-items: center;
}
@media (max-width: 1000px) {
  .about-split { grid-template-columns: 1fr; gap: 48px; }
}
.about-media {
  position: relative;
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 4 / 4.6;
  border: 1px solid var(--line-soft);
}
.about-media img {
  width: 100%;
  height: 112%;
  object-fit: cover;
  will-change: transform;
}
.about-media__tag {
  position: absolute;
  left: 22px;
  bottom: 22px;
  z-index: 2;
  background: rgba(8, 10, 12, 0.72);
  border: 1px solid var(--line);
  backdrop-filter: blur(10px);
  padding: 14px 20px;
  border-radius: 4px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--muted);
}
.about-media__tag b { display: block; color: var(--copper-2); font-size: 20px; letter-spacing: 0; margin-bottom: 2px; }

.about-copy .section-title { margin-bottom: 26px; }
.about-copy p {
  color: var(--muted);
  font-size: 15.5px;
  line-height: 1.95;
  margin-bottom: 18px;
}
.about-points {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px 30px;
  margin: 36px 0 40px;
  padding-top: 32px;
  border-top: 1px solid var(--line);
}
.about-points li {
  list-style: none;
  display: flex;
  gap: 12px;
  font-size: 14px;
  color: rgba(var(--text-rgb), 0.82);
}
.about-points li::before {
  content: "";
  width: 6px;
  height: 6px;
  margin-top: 9px;
  border-radius: 50%;
  background: var(--copper);
  flex-shrink: 0;
}
ul.about-points { padding-left: 0; margin-inline: 0; }

/* ---------- 6.3 优势 ---------- */
.adv-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
}
.adv {
  padding: 44px 30px 44px 0;
  border-right: 1px solid var(--line);
  position: relative;
  transition: background 0.5s;
}
.adv:last-child { border-right: 0; }
.adv__no {
  font-family: var(--font-num);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--copper);
  margin-bottom: 40px;
  display: block;
}
.adv h4 { font-size: 20px; margin-bottom: 14px; }
.adv p { font-size: 13.5px; color: var(--muted); line-height: 1.85; }
.adv::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  height: 2px;
  width: 0;
  background: var(--copper);
  transition: width 0.6s var(--ease);
}
.adv:hover::after { width: 100%; }
.adv:hover { background: rgba(var(--text-rgb), 0.02); }

/* ---------- 7. 产品卡片 ---------- */
.product-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
@media (max-width: 1100px) { .product-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 860px) { .product-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; } }
@media (max-width: 520px) { .product-grid { grid-template-columns: 1fr; } }

.p-card {
  position: relative;
  display: block;
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  background: var(--ink-1);
  overflow: hidden;
  transition: transform 0.55s var(--ease), border-color 0.45s, box-shadow 0.55s;
}
.p-card:hover {
  transform: translateY(-8px);
  border-color: rgba(var(--copper-rgb), 0.45);
  box-shadow: 0 26px 60px -34px rgba(0, 0, 0, 0.9);
}
.p-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--ink-3);
}
.p-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 1s var(--ease), opacity 0.5s;
}
.p-card:hover .p-card__media img { transform: scale(1.06); }
.p-card__badge {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  font-size: 10.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(8, 10, 12, 0.66);
  border: 1px solid var(--line);
  backdrop-filter: blur(8px);
  color: var(--copper-2);
}
.p-card__body { padding: 20px 20px 22px; }
.p-card__cat {
  font-size: 10.5px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.p-card__name {
  font-size: 17px;
  font-weight: 600;
  margin: 8px 0 10px;
  line-height: 1.4;
  transition: color 0.3s;
}
.p-card:hover .p-card__name { color: var(--copper-2); }
.p-card__desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.7;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 44px;
}
.p-card__foot {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--line-soft);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted-2);
}
.p-card__foot svg { transition: transform 0.45s var(--ease), color 0.3s; }
.p-card:hover .p-card__foot svg { transform: translate(3px, -3px); color: var(--copper-2); }

/* ---------- 7.1 筛选栏 ---------- */
.filter-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 44px;
}
.chips { display: flex; gap: 10px; flex-wrap: wrap; }
.chip {
  padding: 10px 20px;
  border-radius: 999px;
  border: 1px solid var(--line);
  font-size: 13px;
  color: var(--muted);
  transition: all 0.35s var(--ease);
  white-space: nowrap;
}
.chip:hover { color: var(--text); border-color: rgba(var(--text-rgb), 0.34); }
.chip.is-active {
  background: var(--copper);
  border-color: var(--copper);
  color: #fff;
  box-shadow: 0 10px 26px -14px var(--copper);
}
.search-box {
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 9px 8px 9px 18px;
  background: var(--ink-1);
  min-width: 260px;
  transition: border-color 0.35s;
}
.search-box:focus-within { border-color: rgba(var(--copper-rgb), 0.6); }
.search-box input {
  flex: 1;
  background: none;
  border: 0;
  outline: none;
  color: var(--text);
  font-size: 13.5px;
  min-width: 0;
}
.search-box input::placeholder { color: var(--muted-2); }
.search-box button {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: rgba(var(--text-rgb), 0.08);
  display: grid;
  place-items: center;
  transition: background 0.3s;
}
.search-box button:hover { background: var(--copper); }

.result-count { font-size: 13px; color: var(--muted-2); letter-spacing: 0.06em; }
.empty-state {
  text-align: center;
  padding: 90px 0;
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 8px;
}
.empty-state b { display: block; color: var(--text); font-size: 18px; margin-bottom: 8px; }

/* 骨架屏 */
.skeleton {
  background: linear-gradient(100deg, var(--ink-2) 20%, var(--ink-3) 40%, var(--ink-2) 60%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite linear;
  border-radius: 6px;
  aspect-ratio: 4 / 3.6;
}
@keyframes shimmer { to { background-position: -200% 0; } }

/* 同类推荐：最多 3 个，用三列保持饱满 */
#relatedGrid { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 860px) { #relatedGrid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { #relatedGrid { grid-template-columns: 1fr; } }

/* ---------- 7.2 产品详情 ---------- */
.page-head {
  padding: calc(var(--header-h) + 84px) 0 64px;
  position: relative;
  border-bottom: 1px solid var(--line-soft);
  overflow: hidden;
}
.page-head::before {
  content: "";
  position: absolute;
  top: -160px;
  right: -80px;
  width: 620px;
  height: 620px;
  background: radial-gradient(circle, var(--copper-glow), transparent 66%);
  pointer-events: none;
}
.page-head h1 {
  font-size: clamp(32px, 5vw, 62px);
  letter-spacing: -0.03em;
  margin-top: 18px;
}
.page-head p { color: var(--muted); max-width: 560px; margin-top: 16px; }

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  color: var(--muted-2);
  letter-spacing: 0.06em;
  flex-wrap: wrap;
}
.breadcrumb a:hover { color: var(--copper-2); }
.breadcrumb span { opacity: 0.5; }

.detail-grid {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 72px;
  align-items: start;
}
@media (max-width: 1000px) { .detail-grid { grid-template-columns: 1fr; gap: 40px; } }

.gallery__main {
  border: 1px solid var(--line-soft);
  border-radius: 8px;
  overflow: hidden;
  background: var(--ink-1);
  aspect-ratio: 4 / 3;
  position: relative;
}
.gallery__main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease), opacity 0.4s;
}
.gallery__main:hover img { transform: scale(1.04); }
.gallery__thumbs { display: flex; gap: 12px; margin-top: 12px; flex-wrap: wrap; }
.gallery__thumb {
  width: 92px;
  aspect-ratio: 4 / 3;
  border-radius: 4px;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  opacity: 0.55;
  transition: opacity 0.3s, border-color 0.3s, transform 0.3s;
  background: var(--ink-2);
}
.gallery__thumb img { width: 100%; height: 100%; object-fit: cover; }
.gallery__thumb:hover { opacity: 1; transform: translateY(-3px); }
.gallery__thumb.is-active { opacity: 1; border-color: var(--copper); }

.detail-info .p-card__cat { font-size: 11px; }
.detail-info h1 {
  font-size: clamp(26px, 3.4vw, 42px);
  margin: 14px 0 18px;
  letter-spacing: -0.02em;
}
.detail-summary { color: var(--muted); font-size: 15.5px; line-height: 1.9; }
.spec-table {
  width: 100%;
  border-collapse: collapse;
  margin: 30px 0;
  font-size: 14px;
}
.spec-table tr { border-bottom: 1px solid var(--line-soft); }
.spec-table th {
  text-align: left;
  font-weight: 400;
  color: var(--muted-2);
  padding: 13px 0;
  width: 34%;
  letter-spacing: 0.04em;
}
.spec-table td { padding: 13px 0; color: rgba(var(--text-rgb), 0.92); }
.detail-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; }
.detail-note {
  margin-top: 24px;
  font-size: 12.5px;
  color: var(--muted-2);
  display: flex;
  gap: 10px;
  align-items: flex-start;
  line-height: 1.7;
}

.detail-desc { margin-top: 80px; padding-top: 56px; border-top: 1px solid var(--line); }
.detail-desc h2 { font-size: 24px; margin-bottom: 26px; }
.detail-desc p {
  color: rgba(var(--text-rgb), 0.72);
  font-size: 15px;
  line-height: 2.05;
  margin-bottom: 18px;
  max-width: 880px;
}

/* ---------- 8. 微信 CTA ---------- */
.wechat-cta {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background:
    radial-gradient(700px 340px at 88% 12%, rgba(var(--copper-rgb), 0.2), transparent 70%),
    var(--ink-2);
  padding: 68px;
  display: grid;
  grid-template-columns: 1fr 300px;
  gap: 60px;
  align-items: center;
}
@media (max-width: 900px) {
  .wechat-cta { grid-template-columns: 1fr; padding: 40px 26px; gap: 34px; }
}
.wechat-cta h2 { font-size: clamp(28px, 3.4vw, 44px); letter-spacing: -0.02em; }
.wechat-cta p { color: var(--muted); margin-top: 18px; max-width: 480px; font-size: 15px; }
.wechat-cta__qr {
  justify-self: center;
  text-align: center;
}
.wechat-cta__qr img {
  width: 220px;
  border-radius: 8px;
  background: #fff;
  padding: 10px;
  box-shadow: 0 30px 70px -30px rgba(0, 0, 0, 0.9);
  transition: transform 0.6s var(--ease);
}
.wechat-cta__qr:hover img { transform: translateY(-6px) rotate(-1deg); }
.wechat-cta__qr span {
  display: block;
  margin-top: 16px;
  font-size: 12px;
  letter-spacing: 0.18em;
  color: var(--muted);
}
.wechat-cta__qr b { color: var(--copper-2); letter-spacing: 0.06em; }

/* ---------- 9. 页脚 ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  background: var(--ink-1);
  padding: 84px 0 0;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 64px;
}
@media (max-width: 1000px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; gap: 34px; } }
.footer-brand p {
  color: var(--muted);
  font-size: 13.5px;
  line-height: 1.9;
  margin-top: 20px;
  max-width: 300px;
}
.footer-col h5 {
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--muted-2);
  margin: 0 0 20px;
  font-weight: 500;
}
.footer-col ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.footer-col a, .footer-col li {
  font-size: 13.5px;
  color: rgba(var(--text-rgb), 0.74);
  transition: color 0.3s;
}
.footer-col a:hover { color: var(--copper-2); }
.footer-bottom {
  border-top: 1px solid var(--line-soft);
  padding: 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  font-size: 12px;
  color: var(--muted-2);
  letter-spacing: 0.04em;
}
.footer-bottom a:hover { color: var(--copper-2); }

/* ---------- 10. 动效 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
  transition-delay: var(--delay, 0s);
}
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal="fade"] { transform: none; }
[data-reveal="left"] { transform: translateX(-40px); }
[data-reveal="right"] { transform: translateX(40px); }
[data-reveal="zoom"] { transform: scale(0.94); }

.clip-reveal { overflow: hidden; }
.clip-reveal > * {
  display: block;
  transform: translateY(105%);
  transition: transform 1s var(--ease);
}
.clip-reveal.is-in > * { transform: none; }

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 100%;
  transform: scaleX(0);
  transform-origin: left;
  background: linear-gradient(90deg, var(--copper), var(--copper-2));
  z-index: 200;
  pointer-events: none;
}

/* 页面加载遮罩 */
.preloader {
  position: fixed;
  inset: 0;
  z-index: 999;
  background: var(--ink);
  display: grid;
  place-items: center;
  transition: opacity 0.7s var(--ease), visibility 0.7s;
}
.preloader.is-done { opacity: 0; visibility: hidden; }
.preloader__inner { text-align: center; width: min(320px, 70vw); }
.preloader__logo {
  font-size: 13px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 22px;
}
.preloader__bar {
  height: 1px;
  background: rgba(var(--text-rgb), 0.14);
  overflow: hidden;
}
.preloader__bar i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--copper);
  transition: width 0.3s linear;
}
.preloader__num {
  margin-top: 16px;
  font-family: var(--font-num);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--copper-2);
  text-align: right;
}

/* 微信弹窗 */
.modal {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
}
.modal.is-open { opacity: 1; visibility: visible; }
.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(4, 6, 8, 0.78);
  backdrop-filter: blur(8px);
}
.modal__panel {
  position: relative;
  width: min(420px, 100%);
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 36px 32px 32px;
  text-align: center;
  transform: translateY(24px) scale(0.97);
  transition: transform 0.5s var(--ease);
  box-shadow: 0 50px 100px -40px #000;
}
.modal.is-open .modal__panel { transform: none; }
.modal__panel img {
  width: 210px;
  margin: 18px auto 0;
  background: #fff;
  padding: 8px;
  border-radius: 6px;
}
.modal__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  font-size: 16px;
  color: var(--muted);
  transition: all 0.3s;
}
.modal__close:hover { color: #fff; border-color: var(--copper); background: var(--copper); }
.modal__panel h3 { font-size: 19px; }
.modal__panel p { color: var(--muted); font-size: 13px; margin-top: 8px; line-height: 1.8; }
.modal__wechat {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px dashed var(--line);
  border-radius: 999px;
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--copper-2);
}
.copy-tip { font-size: 11px; color: var(--muted-2); margin-top: 10px; }

/* 回到顶部 */
.to-top {
  position: fixed;
  right: 26px;
  bottom: 26px;
  z-index: 80;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(var(--bg-rgb), 0.8);
  backdrop-filter: blur(10px);
  display: grid;
  place-items: center;
  opacity: 0;
  transform: translateY(14px);
  pointer-events: none;
  transition: all 0.45s var(--ease);
}
.to-top.is-show { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: var(--copper); border-color: var(--copper); }

/* 404 */
.notfound {
  min-height: 100vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 120px 24px;
}
.notfound h1 {
  font-family: var(--font-num);
  font-size: clamp(90px, 18vw, 200px);
  line-height: 1;
  background: linear-gradient(180deg, var(--text), rgba(var(--text-rgb), 0.08));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.04em;
}

/* ---------- 11. 响应式 ---------- */
@media (max-width: 1080px) {
  .nav { display: none; }
  .menu-toggle { display: block; }
  .header-actions .btn--ghost { display: none; }
  .hero__card { display: none; }
  .hero__stats { grid-template-columns: repeat(2, 1fr); gap: 28px 20px; }
  .adv-grid { grid-template-columns: repeat(2, 1fr); }
  .adv { border-bottom: 1px solid var(--line); }
  .adv:nth-child(2n) { border-right: 0; }
  .cat-card, .cat-card:nth-child(1), .cat-card:nth-child(2) {
    grid-column: span 6;
    min-height: 280px;
  }
}
@media (max-width: 640px) {
  .site-header { height: 68px; }
  .logo__name { font-size: 17px; }
  .logo__sub { display: none; }
  .header-actions .btn--primary { display: none; }
  .section-head { margin-bottom: 38px; }
  .cat-card, .cat-card:nth-child(1), .cat-card:nth-child(2) { grid-column: span 12; min-height: 240px; }
  .cat-card h3 { font-size: 22px; }
  .about-points { grid-template-columns: 1fr; }
  .adv-grid { grid-template-columns: 1fr; }
  .adv { border-right: 0; padding: 32px 0; }
  .wechat-cta__qr img { width: 180px; }
  .detail-actions .btn { flex: 1; justify-content: center; }
  .gallery__thumb { width: 72px; }
  .marquee { padding: 14px 0; }
}

/* 减少动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; }
  .clip-reveal > * { transform: none; }
  .hero__title .line > span { transform: none; }
}

/* ==================================================================
   内页补充：关于我们 / 联系我们
   ================================================================== */

/* 品牌故事 */
.story-grid {
  display: grid;
  grid-template-columns: 0.95fr 1.05fr;
  gap: 80px;
  align-items: center;
}
@media (max-width: 1000px) { .story-grid { grid-template-columns: 1fr; gap: 40px; } }
.story-copy p {
  color: rgba(var(--text-rgb), 0.72);
  font-size: 15.5px;
  line-height: 2.05;
  margin-bottom: 20px;
}
.story-quote {
  margin: 34px 0;
  padding-left: 26px;
  border-left: 2px solid var(--copper);
  font-size: 18px;
  line-height: 1.85;
  color: rgba(var(--text-rgb), 0.9);
}
.story-media {
  position: relative;
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  overflow: hidden;
  aspect-ratio: 4 / 4.4;
}
.story-media img { width: 100%; height: 100%; object-fit: cover; }

/* 时间线 */
.timeline {
  position: relative;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}
.tl-item {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 40px;
  padding: 34px 0;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background 0.4s;
}
.tl-item::before {
  content: "";
  position: absolute;
  left: 0;
  bottom: -1px;
  height: 1px;
  width: 0;
  background: var(--copper);
  transition: width 0.7s var(--ease);
}
.tl-item:hover::before { width: 100%; }
.tl-year {
  font-family: var(--font-num);
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: rgba(var(--text-rgb), 0.34);
  transition: color 0.4s;
  line-height: 1.2;
}
.tl-item:hover .tl-year { color: var(--copper-2); }
.tl-body h4 { font-size: 18px; margin-bottom: 8px; }
.tl-body p { color: var(--muted); font-size: 14px; line-height: 1.85; max-width: 640px; }
@media (max-width: 640px) {
  .tl-item { grid-template-columns: 1fr; gap: 10px; padding: 26px 0; }
}

/* 资质条 */
.cert-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
}
.cert-row div {
  background: var(--ink-1);
  padding: 34px 26px;
  transition: background 0.4s;
}
.cert-row div:hover { background: var(--ink-2); }
.cert-row b {
  display: block;
  font-size: 15px;
  margin-bottom: 6px;
  color: var(--text);
}
.cert-row span { font-size: 12.5px; color: var(--muted-2); line-height: 1.7; }
@media (max-width: 860px) { .cert-row { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .cert-row { grid-template-columns: 1fr; } }

/* 联系页 */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 48px;
  align-items: start;
}
@media (max-width: 940px) { .contact-grid { grid-template-columns: 1fr; } }

.qr-panel {
  border: 1px solid var(--line);
  border-radius: 10px;
  background:
    radial-gradient(420px 240px at 50% 0%, rgba(var(--copper-rgb), 0.18), transparent 70%),
    var(--ink-2);
  padding: 42px 32px;
  text-align: center;
  position: sticky;
  top: 100px;
}
@media (max-width: 940px) { .qr-panel { position: static; } }
.qr-panel img {
  width: 240px;
  margin: 22px auto 0;
  background: #fff;
  padding: 10px;
  border-radius: 8px;
  box-shadow: 0 30px 70px -34px #000;
}
.qr-panel h3 { font-size: 20px; }
.qr-panel p { color: var(--muted); font-size: 13px; margin-top: 8px; }
.qr-id {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 20px;
  padding: 12px 20px;
  border: 1px dashed var(--line);
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.06em;
  color: var(--copper-2);
  cursor: pointer;
  transition: border-color 0.3s, background 0.3s;
}
.qr-id:hover { border-color: var(--copper); background: rgba(var(--copper-rgb), 0.1); }
.qr-panel .copy-tip { font-size: 11.5px; color: var(--muted-2); margin-top: 12px; }
.qr-points {
  margin: 26px 0 0;
  padding: 22px 0 0;
  border-top: 1px solid var(--line-soft);
  list-style: none;
  display: grid;
  gap: 11px;
  text-align: left;
}
.qr-points li {
  display: flex;
  gap: 10px;
  font-size: 12.5px;
  color: var(--muted);
  line-height: 1.7;
}
.qr-points li::before {
  content: "";
  width: 5px; height: 5px; margin-top: 8px;
  border-radius: 50%; background: var(--copper); flex-shrink: 0;
}
.qr-panel__note { margin-top: 18px; font-size: 11.5px; color: var(--muted-2); }

.info-list { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 8px; overflow: hidden; }
.info-item {
  background: var(--ink-1);
  display: grid;
  grid-template-columns: 52px 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 24px 26px;
  transition: background 0.35s;
}
.info-item:hover { background: var(--ink-2); }
.info-item__icon {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--copper-2);
}
.info-item__label { font-size: 11.5px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted-2); }
.info-item__value { font-size: 15.5px; margin-top: 4px; color: rgba(var(--text-rgb), 0.94); line-height: 1.6; }
.info-item__value small { display: block; font-size: 12.5px; color: var(--muted); margin-top: 2px; }
.info-item__act { font-size: 12px; color: var(--copper-2); letter-spacing: 0.06em; white-space: nowrap; }
.info-item__act:hover { text-decoration: underline; }

.map-card {
  margin-top: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  position: relative;
  min-height: 300px;
  background:
    linear-gradient(rgba(var(--bg-rgb), 0.72), rgba(var(--bg-rgb), 0.9)),
    repeating-linear-gradient(90deg, rgba(var(--text-rgb), 0.06) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, rgba(var(--text-rgb), 0.06) 0 1px, transparent 1px 64px),
    var(--ink-2);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 40px 26px;
}
.map-card::before {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 1px solid rgba(var(--copper-rgb), 0.35);
  box-shadow: 0 0 0 24px rgba(var(--copper-rgb), 0.06), 0 0 0 56px rgba(var(--copper-rgb), 0.03);
}
.map-card__pin {
  position: relative;
  z-index: 1;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--copper);
  box-shadow: 0 0 0 6px rgba(var(--copper-rgb), 0.2);
  margin-bottom: 26px;
  animation: pinPulse 2.4s ease-in-out infinite;
}
@keyframes pinPulse {
  0%, 100% { box-shadow: 0 0 0 6px rgba(var(--copper-rgb), 0.2); }
  50% { box-shadow: 0 0 0 14px rgba(var(--copper-rgb), 0.06); }
}
.map-card__body { position: relative; z-index: 1; }
.map-card h4 { font-size: 17px; margin-bottom: 8px; }
.map-card p { color: var(--muted); font-size: 13px; margin-bottom: 20px; }

/* 关于页 hero 大字 */
.about-hero {
  padding: calc(var(--header-h) + 110px) 0 90px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line-soft);
}
.about-hero::before {
  content: "";
  position: absolute;
  top: -240px;
  left: 50%;
  transform: translateX(-50%);
  width: 1000px;
  height: 700px;
  background: radial-gradient(circle, rgba(var(--copper-rgb), 0.16), transparent 66%);
}
.about-hero h1 {
  font-size: clamp(38px, 7vw, 92px);
  line-height: 1.06;
  letter-spacing: -0.035em;
  margin-top: 22px;
  position: relative;
}
.about-hero p {
  color: var(--muted);
  max-width: 620px;
  margin-top: 26px;
  font-size: 16px;
  line-height: 1.95;
  position: relative;
}

/* ==================================================================
   深浅色主题（默认深色，html[data-theme="light"] 切换为浅色）
   ================================================================== */
html[data-theme="light"] {
  /* 与后台管理系统一致的白色体系：#f3f5f8 页面底 + 纯白卡片 */
  --ink: #f3f5f8;
  --ink-1: #ffffff;
  --ink-2: #f7f8fa;
  --ink-3: #eef1f5;
  --paper: #14181d;
  --text: #15191e;
  --muted: rgba(21, 25, 30, 0.62);
  --muted-2: rgba(21, 25, 30, 0.42);
  --line: #e6e9ee;
  --line-soft: #eef1f5;
  --copper: #c8722f;
  --copper-2: #b5641f;
  --copper-glow: rgba(200, 114, 47, 0.09);
  --text-rgb: 21, 25, 30;
  --bg-rgb: 243, 245, 248;
  --surface-rgb: 255, 255, 255;
  --copper-rgb: 200, 114, 47;
  color-scheme: light;
}

/* 浅色下分类卡改为浅底深字，避免大块深色 */
html[data-theme="light"] .cat-card::after {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 26%, rgba(255, 255, 255, 0.94) 100%);
}
html[data-theme="light"] .cat-card__img img { filter: saturate(0.92) brightness(1); }
html[data-theme="light"] .cat-card:hover .cat-card__img img { filter: saturate(1) brightness(1); }
html[data-theme="light"] .cat-card__arrow { color: var(--text); border-color: var(--line); }
html[data-theme="light"] .p-card__badge { color: #f0b273; }
html[data-theme="light"] .about-media__tag { color: rgba(255, 255, 255, 0.72); }
html[data-theme="light"] .about-media__tag b { color: #f0b273; }

/* 首屏标题的高亮渐变在浅底上加深，保证可读 */
html[data-theme="light"] .hero__title .accent {
  background: linear-gradient(100deg, #b5641f, #c8722f 45%, #9a4f16);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

html[data-theme="light"] .hero__card {
  background: rgba(255, 255, 255, 0.82);
  box-shadow: 0 26px 60px -44px rgba(21, 25, 30, 0.45);
}
html[data-theme="light"] .site-header.is-scrolled { background: rgba(243, 245, 248, 0.9); }
html[data-theme="light"] .wechat-cta {
  background:
    radial-gradient(700px 340px at 88% 12%, rgba(176, 96, 31, 0.14), transparent 70%),
    #fff;
}
html[data-theme="light"] .qr-panel {
  background:
    radial-gradient(420px 240px at 50% 0%, rgba(176, 96, 31, 0.12), transparent 70%),
    #fff;
}
html[data-theme="light"] .modal__panel { background: #fff; }
html[data-theme="light"] .to-top { background: rgba(255, 255, 255, 0.94); }
html[data-theme="light"] .btn--ghost:hover { border-color: rgba(var(--text-rgb), 0.45); }
html[data-theme="light"] body::after { opacity: 0.022; }
html[data-theme="light"] .search-box { background: #fff; }
html[data-theme="light"] ::-webkit-scrollbar-track { background: #eef1f5; }
html[data-theme="light"] ::-webkit-scrollbar-thumb { background: #d3dae2; border-color: #eef1f5; }
html[data-theme="light"] ::-webkit-scrollbar-thumb:hover { background: var(--copper); }

/* 主题切换按钮 */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  color: var(--text);
  flex-shrink: 0;
  transition: color 0.3s, border-color 0.3s, transform 0.5s var(--ease), background 0.3s;
}
.theme-toggle:hover {
  color: var(--copper-2);
  border-color: var(--copper);
  transform: rotate(-18deg);
}
.theme-toggle svg { width: 17px; height: 17px; display: block; }
.theme-toggle .icon-sun { display: none; }
html[data-theme="light"] .theme-toggle .icon-sun { display: block; }
html[data-theme="light"] .theme-toggle .icon-moon { display: none; }

/* 仅给页面底色做柔和过渡，避免覆盖组件自身的 transform 动效 */
body {
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease);
}