/* ============================================================
   OLANDI TEXTILE — 广州市欧澜迪纺织品进出口有限公司
   高端外贸纺织企业官网 · 设计系统
   ============================================================ */

/* ---------- 1. Design Tokens ---------- */
:root {
  /* Surfaces — 深灰 / 高级黑 */
  --bg-0: #070709;
  --bg-1: #0b0b0f;
  --bg-2: #101016;
  --surface: #14141b;
  --surface-2: #1a1a23;

  /* Lines */
  --line: rgba(255, 255, 255, 0.07);
  --line-strong: rgba(255, 255, 255, 0.14);

  /* Text — 银白系 */
  --text-1: #f0efe9;
  --text-2: #b6b4ad;
  --text-3: #7d7b74;

  /* Accent — 轻奢金 + 银 */
  --accent: #c8a96a;
  --accent-bright: #e6d3a3;
  --accent-deep: #9c8147;
  --accent-soft: rgba(200, 169, 106, 0.13);
  --silver: #c9ccd2;
  --gold-grad: linear-gradient(120deg, #ead9ab 0%, #c8a96a 48%, #a5884e 100%);

  /* Typography */
  --font-zh: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-serif: "Playfair Display", "Songti SC", "SimSun", serif;
  --font-sans: "Jost", "PingFang SC", "Microsoft YaHei", sans-serif;

  /* Metrics */
  --container: 1200px;
  --radius: 6px;
  --radius-lg: 14px;
  --nav-h: 76px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --shadow-1: 0 2px 24px rgba(0, 0, 0, 0.35);
  --shadow-2: 0 24px 60px rgba(0, 0, 0, 0.5);
}

/* ---------- 2. Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-zh);
  background: var(--bg-0);
  color: var(--text-1);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

::selection { background: rgba(200, 169, 106, 0.35); color: #fff; }

/* Scrollbar */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-1); }
::-webkit-scrollbar-thumb { background: #2a2a33; border-radius: 6px; }
::-webkit-scrollbar-thumb:hover { background: #3a3a45; }

/* ---------- 3. Texture Overlays ---------- */
/* Simplex Noise 丝光背景层 */
.noise-bg {
  position: fixed;
  top: 0; left: 0;
  z-index: 0;
  pointer-events: none;
  mix-blend-mode: screen;
  opacity: 0.55;
}
/* 内容层抬到噪声层之上 */
.section, .page-hero, .marquee, .footer, .cta-banner, .detail { position: relative; z-index: 1; }

/* 鼠标跟随光斑 */
.cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 420px; height: 420px;
  margin: -210px 0 0 -210px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 4;
  background: radial-gradient(circle, rgba(200,169,106,0.075), rgba(150,160,180,0.035) 40%, transparent 65%);
  mix-blend-mode: screen;
  will-change: transform;
}
@media (hover: none), (pointer: coarse) { .cursor-glow { display: none; } }

/* 文字流光 */
@keyframes shimmer {
  0% { background-position: 0% 50%; }
  100% { background-position: 200% 50%; }
}
.txt-shimmer,
.hero__en em,
.sec-title em,
.detail__en {
  background-image: linear-gradient(110deg, #9c8147 0%, #c8a96a 25%, #f3e3b2 50%, #c8a96a 75%, #9c8147 100%);
  background-size: 220% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: shimmer 7s linear infinite;
}
.detail__en { animation-duration: 8s; }

/* 悬浮卡片 3D 倾斜过渡 */
.product-card, .card { transform-style: preserve-3d; }
.product-card { transition: box-shadow 0.45s var(--ease), border-color 0.45s var(--ease); }
.card { transition: box-shadow 0.45s var(--ease), border-color 0.45s var(--ease); }

/* 面料编织纹理 */
.weave::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    repeating-linear-gradient(0deg, rgba(255,255,255,0.016) 0 1px, transparent 1px 7px),
    repeating-linear-gradient(90deg, rgba(255,255,255,0.012) 0 1px, transparent 1px 7px);
  z-index: 0;
}

/* 噪点颗粒 */
.grain::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.5;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3CfeComponentTransfer%3E%3CfeFuncA type='linear' slope='0.05'/%3E%3C/feComponentTransfer%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- 4. Layout Helpers ---------- */
.container {
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
}

.section { position: relative; padding: 120px 0; }
.section--tight { padding: 90px 0; }

/* 区块标题 */
.sec-head { max-width: 720px; margin-bottom: 64px; }
.sec-head--center { margin-inline: auto; text-align: center; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 22px;
}
.kicker::before { content: ""; width: 34px; height: 1px; background: var(--accent); }
.sec-head--center .kicker::after { content: ""; width: 34px; height: 1px; background: var(--accent); }
.sec-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: 0.01em;
  color: var(--text-1);
}
.sec-title em { font-style: normal; color: var(--accent); }
.sec-desc { margin-top: 18px; color: var(--text-2); font-size: 16px; line-height: 1.9; }

/* ---------- 5. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 34px;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.06em;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
  transition: all 0.35s var(--ease);
  white-space: nowrap;
}
.btn .btn-arrow { transition: transform 0.35s var(--ease); }
.btn:hover .btn-arrow { transform: translateX(5px); }

.btn-gold {
  background: var(--gold-grad);
  color: #141008;
  box-shadow: 0 10px 30px rgba(200, 169, 106, 0.22);
}
.btn-gold::before {
  content: "";
  position: absolute;
  top: 0; left: -80%;
  width: 50%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255,255,255,0.55), transparent);
  transform: skewX(-24deg);
  transition: left 0.6s var(--ease);
}
.btn-gold:hover::before { left: 130%; }
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 16px 40px rgba(200,169,106,0.32); }

.btn-ghost {
  border: 1px solid var(--line-strong);
  color: var(--text-1);
  background: rgba(255, 255, 255, 0.02);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent-bright);
  background: var(--accent-soft);
  transform: translateY(-2px);
}

.btn-sm { padding: 11px 22px; font-size: 14px; }

/* ---------- 6. Header ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: all 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.header.is-scrolled {
  background: rgba(9, 9, 12, 0.82);
  backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
  height: 64px;
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(100% - 48px, var(--container));
  margin-inline: auto;
}
.logo { display: flex; align-items: center; gap: 14px; }
.logo__mark {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border: 1px solid var(--accent);
  border-radius: 3px;
  font-family: var(--font-serif);
  font-size: 19px;
  color: var(--accent-bright);
  background: linear-gradient(160deg, rgba(200,169,106,0.16), rgba(200,169,106,0.02));
}
.logo__text { display: flex; flex-direction: column; line-height: 1.15; }
.logo__en { font-family: var(--font-serif); font-size: 21px; letter-spacing: 0.14em; color: var(--text-1); }
.logo__zh { font-size: 10.5px; letter-spacing: 0.28em; color: var(--text-3); text-transform: uppercase; }

/* 图片版 logo（推荐） */
.logo--img { gap: 16px; }
.logo--img .logo__img { height: 44px; width: auto; display: block; }
.logo--img .logo__sub {
  font-family: var(--font-zh);
  font-size: 11.5px;
  letter-spacing: 0.32em;
  color: var(--text-3);
  padding-left: 12px;
  border-left: 1px solid var(--line-strong);
  line-height: 1.3;
}
@media (max-width: 640px) {
  .logo--img .logo__sub { display: none; }
}

.nav { display: flex; align-items: center; gap: 38px; }
.nav__link {
  position: relative;
  font-size: 15px;
  color: var(--text-2);
  letter-spacing: 0.04em;
  padding: 8px 0;
  transition: color 0.3s;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 2px;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.35s var(--ease);
}
.nav__link:hover, .nav__link.is-active { color: var(--text-1); }
.nav__link:hover::after, .nav__link.is-active::after { width: 100%; }

.nav__cta { margin-left: 14px; }

/* 语言切换器 */
.lang-switch-wrap { position: relative; display: inline-flex; align-items: center; }
.lang-switch {
  appearance: none;
  -webkit-appearance: none;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--text-2);
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  padding: 7px 26px 7px 12px;
  cursor: pointer;
  transition: all 0.3s;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='5' viewBox='0 0 8 5'%3E%3Cpath d='M0 0l4 5 4-5z' fill='%23b6b4ad'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
}
.lang-switch:hover, .lang-switch:focus { border-color: var(--accent); color: var(--accent-bright); outline: none; }
.lang-switch option { background: #14141b; color: var(--text-1); }
@media (max-width: 960px) {
  .lang-switch { padding: 9px 28px 9px 14px; font-size: 14px; }
}

/* Mobile menu */
.burger { display: none; flex-direction: column; gap: 5px; padding: 8px; z-index: 120; }
.burger span {
  width: 24px; height: 1.5px;
  background: var(--text-1);
  transition: all 0.35s var(--ease);
}
.burger.is-open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.burger.is-open span:nth-child(2) { opacity: 0; }
.burger.is-open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 960px) {
  .nav {
    position: fixed;
    inset: 0;
    flex-direction: column;
    justify-content: center;
    gap: 26px;
    background: rgba(8, 8, 11, 0.97);
    backdrop-filter: blur(20px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s var(--ease);
  }
  .nav.is-open { opacity: 1; pointer-events: auto; }
  .nav__link { font-size: 20px; }
  .nav__cta { margin-left: 0; margin-top: 8px; }
  .burger { display: flex; }
}

/* ---------- 7. Hero (首页全屏) ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
/* 静态版本（首页，去掉 3D canvas） */
.hero--static .hero__static-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background:
    radial-gradient(ellipse 90% 70% at 50% 38%, rgba(200, 169, 106, 0.10), transparent 60%),
    radial-gradient(ellipse 60% 60% at 18% 22%, rgba(46, 167, 255, 0.08), transparent 60%),
    radial-gradient(ellipse 60% 60% at 86% 78%, rgba(200, 169, 106, 0.06), transparent 60%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 100%);
}
/* 产品中心 hero 紧凑版 */
.hero--center { min-height: 80vh; min-height: 80svh; padding: 120px 0 80px; }
.hero__content--center { padding: 0 24px; }
.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero__veil {
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(ellipse 90% 70% at 50% 38%, rgba(200, 169, 106, 0.10), transparent 60%),
    radial-gradient(ellipse 70% 60% at 78% 88%, rgba(120, 130, 150, 0.07), transparent 55%),
    linear-gradient(180deg, rgba(7,7,9,0.55) 0%, rgba(7,7,9,0.72) 55%, var(--bg-0) 100%);
}
.hero__content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 140px 24px 80px;
  max-width: 960px;
}
.hero__kicker {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  font-family: var(--font-sans);
  font-size: 12px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0;
  animation: rise 1s var(--ease) 0.15s forwards;
}
.hero__kicker::before, .hero__kicker::after { content: ""; width: 46px; height: 1px; background: var(--accent); opacity: 0.8; }
.hero__en {
  margin-top: 30px;
  font-family: var(--font-serif);
  font-size: clamp(52px, 9vw, 118px);
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: 0.06em;
  color: var(--text-1);
  opacity: 0;
  animation: rise 1.2s var(--ease) 0.35s forwards;
}
.hero__en em {
  font-style: normal;
  background: var(--gold-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__zh {
  margin-top: 22px;
  font-size: clamp(16px, 2.4vw, 22px);
  font-weight: 300;
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  color: var(--text-2);
  opacity: 0;
  animation: rise 1.2s var(--ease) 0.55s forwards;
}
.hero__slogan {
  margin: 26px auto 0;
  font-family: var(--font-serif);
  font-style: italic;
  font-size: clamp(17px, 2.2vw, 22px);
  color: var(--silver);
  opacity: 0;
  animation: rise 1.2s var(--ease) 0.7s forwards;
}
.hero__actions {
  margin-top: 48px;
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  opacity: 0;
  animation: rise 1.2s var(--ease) 0.9s forwards;
}
.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 34px;
  transform: translateX(-50%);
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-3);
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  opacity: 0;
  animation: rise 1s var(--ease) 1.4s forwards;
}
.hero__scroll-line { width: 1px; height: 46px; background: linear-gradient(var(--accent), transparent); position: relative; overflow: hidden; }
.hero__scroll-line::after {
  content: "";
  position: absolute;
  top: -50%; left: 0;
  width: 100%; height: 50%;
  background: var(--accent);
  animation: scrollDrop 2.2s ease-in-out infinite;
}

/* Hero 浮动 3D 面料卡 */
.float-card {
  position: absolute;
  z-index: 2;
  width: 300px;
  padding: 14px;
  background: linear-gradient(165deg, rgba(255,255,255,0.055), rgba(255,255,255,0.012));
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-2);
  opacity: 0;
  animation: floatIn 1.4s var(--ease) 1s forwards;
}
.float-card--1 { top: 22%; left: 6%; transform: perspective(900px) rotateY(18deg) rotateX(6deg); }
.float-card--2 { top: 30%; right: 5%; transform: perspective(900px) rotateY(-16deg) rotateX(-5deg); animation-delay: 1.2s; }
.float-card__img {
  height: 150px;
  border-radius: 10px;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  border: 1px solid var(--line);
}
.float-card__label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  padding: 0 4px;
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-3);
}
.float-card__label b { color: var(--accent); font-weight: 500; }
@media (max-width: 1100px) { .float-card { display: none; } }

@keyframes floatIn { from { opacity: 0; transform: translateY(40px) scale(0.96); } to { opacity: 1; } }
@keyframes rise { from { opacity: 0; transform: translateY(34px); } to { opacity: 1; transform: none; } }
@keyframes scrollDrop { 0% { top: -50%; } 100% { top: 110%; } }

/* ---------- 8. Marquee 品牌条 ---------- */
.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--bg-1);
  overflow: hidden;
  padding: 22px 0;
}
.marquee__track {
  display: flex;
  gap: 64px;
  width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee span {
  font-family: var(--font-sans);
  font-size: 13px;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--text-3);
  white-space: nowrap;
}
.marquee span b { color: var(--accent); font-weight: 500; margin-right: 10px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 9. Cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }

.card {
  position: relative;
  background: linear-gradient(170deg, #252532, #1a1a23);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 38px 32px;
  overflow: hidden;
  transition: all 0.45s var(--ease);
}
.card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(320px 160px at var(--mx, 50%) var(--my, 0%), rgba(200,169,106,0.10), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(200, 169, 106, 0.4);
  box-shadow: 0 30px 60px rgba(0,0,0,0.45), 0 0 0 1px rgba(200,169,106,0.12);
}
.card:hover::before { opacity: 1; }
.card__icon {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--accent);
  font-family: var(--font-serif);
  font-size: 20px;
  margin-bottom: 26px;
  background: var(--accent-soft);
  transition: all 0.4s var(--ease);
}
.card:hover .card__icon { border-color: var(--accent); transform: scale(1.08); }
.card__title { font-size: 19px; font-weight: 600; margin-bottom: 12px; color: var(--text-1); }
.card__text { font-size: 14.5px; line-height: 1.9; color: var(--text-2); }

/* 数据指标 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 30px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 44px 0; }
.stat { text-align: center; position: relative; }
.stat + .stat::before { content: ""; position: absolute; left: -15px; top: 12%; height: 76%; width: 1px; background: var(--line); }
.stat__num {
  font-family: var(--font-serif);
  font-size: clamp(34px, 4.6vw, 52px);
  font-weight: 500;
  color: var(--text-1);
  line-height: 1.1;
}
.stat__num i { font-style: normal; color: var(--accent); font-size: 0.55em; vertical-align: super; margin-left: 2px; }
.stat__label { margin-top: 10px; font-family: var(--font-sans); font-size: 12px; letter-spacing: 0.26em; text-transform: uppercase; color: var(--text-3); }

/* ---------- 10. 产品卡片 ---------- */
.product-card {
  position: relative;
  background: linear-gradient(170deg, #232330, #15151c);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.45s var(--ease);
  display: flex;
  flex-direction: column;
}
.product-card:hover {
  transform: translateY(-6px);
  border-color: rgba(200,169,106,0.42);
  box-shadow: var(--shadow-2), 0 0 0 1px rgba(200,169,106,0.1);
}
.product-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  background-color: #101016;
}
.product-card__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(7,7,9,0.55));
  opacity: 0;
  transition: opacity 0.4s;
}
.product-card:hover .product-card__media::after { opacity: 1; }
.product-card__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease);
}
.product-card:hover .product-card__media img { transform: scale(1.08); }
.product-card__tag {
  position: absolute;
  top: 14px; left: 14px;
  z-index: 2;
  padding: 5px 12px;
  font-family: var(--font-sans);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-bright);
  background: rgba(7,7,9,0.72);
  border: 1px solid rgba(200,169,106,0.4);
  border-radius: 3px;
  backdrop-filter: blur(6px);
}
.product-card__body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.product-card__name { font-size: 18px; font-weight: 600; color: var(--text-1); }
.product-card__en { font-family: var(--font-sans); font-size: 11.5px; letter-spacing: 0.2em; text-transform: uppercase; color: var(--text-3); margin-top: 5px; }
.product-card__specs { margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); display: flex; gap: 18px; font-size: 12.5px; color: var(--text-2); }
.product-card__specs span b { color: var(--text-1); font-weight: 500; margin-right: 4px; }
.product-card__link {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  letter-spacing: 0.08em;
  color: var(--accent);
  transition: gap 0.3s var(--ease);
}
.product-card:hover .product-card__link { gap: 14px; }

/* ---------- 11. 详情页 ---------- */
.crumbs {
  padding: calc(var(--nav-h) + 34px) 0 0;
  font-family: var(--font-sans);
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-3);
}
.crumbs a { color: var(--text-2); transition: color 0.3s; }
.crumbs a:hover { color: var(--accent); }
.crumbs .sep { margin: 0 10px; opacity: 0.5; }

.detail { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 64px; padding: 46px 0 110px; }
.detail__media {
  position: sticky;
  top: calc(var(--nav-h) + 24px);
  height: max-content;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--bg-2);
}
.detail__media img { width: 100%; height: auto; aspect-ratio: 4 / 4.6; object-fit: cover; }
.detail__thumbs { display: flex; gap: 10px; margin-top: 10px; }
.detail__thumbs div {
  flex: 1; aspect-ratio: 1/0.9;
  border-radius: 8px;
  overflow: hidden;
  border: 1px solid var(--line);
  background-size: cover; background-position: center;
  opacity: 0.85;
  transition: all 0.3s;
}
.detail__thumbs div:hover { opacity: 1; border-color: var(--accent); }

.detail__title { font-size: clamp(26px, 3.4vw, 38px); font-weight: 600; color: var(--text-1); line-height: 1.3; }
.detail__en { font-family: var(--font-serif); font-size: 16px; color: var(--accent); letter-spacing: 0.1em; margin-top: 10px; }
.detail__desc { margin-top: 20px; color: var(--text-2); font-size: 15.5px; line-height: 2; }

.spec-table { margin-top: 34px; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.spec-row { display: grid; grid-template-columns: 130px 1fr; border-bottom: 1px solid var(--line); }
.spec-row:last-child { border-bottom: none; }
.spec-row dt { padding: 15px 20px; background: var(--bg-2); color: var(--text-3); font-size: 13.5px; letter-spacing: 0.12em; }
.spec-row dd { padding: 15px 20px; color: var(--text-1); font-size: 15px; }

.tag-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.tag {
  padding: 7px 16px;
  font-size: 13px;
  color: var(--text-2);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  transition: all 0.3s;
  background: rgba(255,255,255,0.02);
}
.tag:hover { border-color: var(--accent); color: var(--accent-bright); background: var(--accent-soft); }

.detail__nav {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 46px;
  padding-top: 30px;
  border-top: 1px solid var(--line);
}
.detail__nav a {
  font-size: 14px;
  letter-spacing: 0.08em;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: color 0.3s;
}
.detail__nav a:hover { color: var(--accent); }
.detail__nav .next { margin-left: auto; }

/* ---------- 12. 关于 / 通用区块 ---------- */
.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center; }
.about-intro__text .sec-title { margin-bottom: 22px; }
.about-intro__text p { color: var(--text-2); margin-bottom: 16px; font-size: 15.5px; line-height: 2; }
.about-intro__media { position: relative; }
.about-intro__media .frame-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
  aspect-ratio: 4/4.4;
  background-size: cover; background-position: center;
  box-shadow: var(--shadow-2);
}
.about-intro__media .frame-badge {
  position: absolute;
  right: -22px; bottom: 34px;
  padding: 22px 28px;
  background: linear-gradient(160deg, rgba(200,169,106,0.16), rgba(200,169,106,0.03));
  border: 1px solid rgba(200,169,106,0.4);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  font-family: var(--font-serif);
  font-size: 26px;
  color: var(--accent-bright);
  box-shadow: var(--shadow-1);
}
.about-intro__media .frame-badge small { display: block; font-family: var(--font-zh); font-size: 12px; letter-spacing: 0.2em; color: var(--text-2); margin-top: 6px; }

/* 流程步骤 */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; counter-reset: step; }
.step { position: relative; padding-top: 54px; }
.step::before {
  counter-increment: step;
  content: "0" counter(step);
  position: absolute;
  top: 0; left: 0;
  font-family: var(--font-serif);
  font-size: 34px;
  color: transparent;
  -webkit-text-stroke: 1px rgba(200,169,106,0.55);
}
.step h4 { font-size: 17px; font-weight: 600; margin-bottom: 10px; color: var(--text-1); }
.step p { font-size: 14px; line-height: 1.9; color: var(--text-2); }

/* 联系方式区块 */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; }
.contact-item { display: flex; gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--line); }
.contact-item:last-child { border-bottom: none; }
.contact-item__icon {
  flex: 0 0 46px; height: 46px;
  display: grid; place-items: center;
  border: 1px solid rgba(200,169,106,0.4);
  border-radius: 50%;
  color: var(--accent);
  background: var(--accent-soft);
}
.contact-item h4 { font-size: 15px; font-weight: 600; margin-bottom: 4px; color: var(--text-1); }
.contact-item p { font-size: 14.5px; color: var(--text-2); line-height: 1.8; }
.contact-item p a { color: var(--accent-bright); }

/* 表单 */
.form { display: grid; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field label { display: block; font-size: 13px; letter-spacing: 0.1em; color: var(--text-3); margin-bottom: 8px; }
.field input, .field textarea, .field select {
  width: 100%;
  padding: 14px 16px;
  background: var(--bg-2);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  color: var(--text-1);
  outline: none;
  transition: all 0.3s;
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field textarea:focus, .field select:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.field input::placeholder, .field textarea::placeholder { color: var(--text-3); }
.form-note { font-size: 13px; color: var(--text-3); }

/* ---------- 13. CTA 横幅 ---------- */
.cta-banner {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(200,169,106,0.26);
  border-radius: var(--radius-lg);
  padding: 84px 60px;
  text-align: center;
  background:
    radial-gradient(ellipse 70% 120% at 50% -20%, rgba(200,169,106,0.14), transparent 60%),
    linear-gradient(170deg, var(--surface), var(--bg-1));
}
.cta-banner h2 { font-size: clamp(26px, 3.6vw, 40px); font-weight: 600; color: var(--text-1); }
.cta-banner p { margin: 16px auto 38px; max-width: 620px; color: var(--text-2); font-size: 15.5px; line-height: 1.9; }
.cta-banner .kicker { justify-content: center; }
.cta-banner .kicker::after { content: ""; width: 34px; height: 1px; background: var(--accent); }

/* ---------- 13.4 公司展厅图集 ---------- */
.gallery-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.gallery-frame {
  position: relative;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-2);
  background: var(--bg-1);
}
.gallery-frame img {
  display: block;
  width: 100%;
  height: 380px;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}
.gallery-frame:hover img { transform: scale(1.04); }
.gallery-frame figcaption {
  position: absolute;
  left: 22px; bottom: 20px;
  padding: 10px 18px;
  background: rgba(11,11,15,0.72);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(200,169,106,0.4);
  border-radius: 99px;
  font-size: 12.5px;
  letter-spacing: 0.16em;
  color: var(--accent-bright);
}
@media (max-width: 768px) {
  .gallery-2 { grid-template-columns: 1fr; gap: 20px; }
  .gallery-frame img { height: 240px; }
}

/* ---------- 13.5 小红书入口卡片 ---------- */
.xhs-card {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: 72px 56px;
  border: 1px solid rgba(200,169,106,0.24);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(ellipse 80% 130% at 50% -30%, rgba(255,77,77,0.10), transparent 62%),
    radial-gradient(ellipse 60% 100% at 85% 120%, rgba(200,169,106,0.08), transparent 60%),
    linear-gradient(170deg, var(--surface), var(--bg-1));
}
.xhs-card__chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px;
  border: 1px solid rgba(200,169,106,0.35);
  border-radius: 99px;
  font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--accent-bright);
  background: rgba(200,169,106,0.08);
  margin-bottom: 24px;
}
.xhs-card__chip-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent-bright);
  box-shadow: 0 0 10px rgba(200,169,106,0.8);
  animation: pulse 2.2s ease-in-out infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1); } 50% { opacity: 0.45; transform: scale(0.8); } }
.xhs-card__title { font-size: clamp(24px, 3.2vw, 36px); font-weight: 600; color: var(--text-1); margin-bottom: 16px; }
.xhs-card__title em { font-style: normal; }
.xhs-card__desc { max-width: 560px; margin: 0 auto 44px; color: var(--text-2); font-size: 15.5px; line-height: 1.9; }
.xhs-card__row {
  display: flex; justify-content: center; gap: 28px; flex-wrap: wrap;
  margin-bottom: 30px;
}
.xhs-card__item {
  display: flex; align-items: center; gap: 14px;
  padding: 18px 26px;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
}
.xhs-card__label { font-size: 12.5px; letter-spacing: 0.12em; color: var(--text-3); }
.xhs-card__value { font-size: 19px; font-weight: 600; color: var(--text-1); letter-spacing: 0.04em; }
.xhs-card__hint { color: var(--text-3); font-size: 13px; letter-spacing: 0.06em; }
.xhs-copy { min-width: 74px; }
.xhs-copy.is-copied { background: linear-gradient(160deg, rgba(19,221,196,0.25), rgba(19,221,196,0.1)); border-color: rgba(19,221,196,0.5); }
@media (max-width: 640px) {
  .xhs-card { padding: 52px 22px; }
  .xhs-card__item { width: 100%; justify-content: space-between; padding: 16px 18px; }
  .xhs-card__value { font-size: 17px; }
}

/* ---------- 14. Footer ---------- */
.footer { position: relative; background: var(--bg-1); border-top: 1px solid var(--line); padding: 84px 0 0; }
.footer__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 56px; padding-bottom: 60px; }
.footer h5 { font-size: 14px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-1); margin-bottom: 22px; font-weight: 600; }
.footer__about p { font-size: 14px; color: var(--text-2); line-height: 2; margin-top: 18px; max-width: 320px; }
.footer__links li { margin-bottom: 13px; }
.footer__links a { font-size: 14px; color: var(--text-3); transition: all 0.3s; }
.footer__links a:hover { color: var(--accent); padding-left: 6px; }
.footer__contact li { display: flex; gap: 12px; font-size: 14px; color: var(--text-2); margin-bottom: 15px; line-height: 1.8; }
.footer__contact .c-label { flex: 0 0 58px; color: var(--text-3); font-family: var(--font-sans); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; padding-top: 3px; }
.footer__service { display: flex; flex-wrap: wrap; gap: 10px; }
.footer__service .tag { font-size: 12.5px; cursor: default; }
.footer__bar {
  border-top: 1px solid var(--line);
  padding: 26px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-3);
}
.footer__bar a { color: var(--text-3); margin-left: 18px; transition: color 0.3s; }
.footer__bar a:hover { color: var(--accent); }

/* ---------- 15. Reveal 动画 ---------- */
.reveal { opacity: 0; transform: translateY(38px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.08s; }
.reveal-d2 { transition-delay: 0.16s; }
.reveal-d3 { transition-delay: 0.24s; }

/* 页头横幅（内页） */
.page-hero {
  position: relative;
  padding: calc(var(--nav-h) + 96px) 0 84px;
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(ellipse 60% 100% at 50% -10%, rgba(200,169,106,0.10), transparent 60%),
    linear-gradient(180deg, var(--bg-1), var(--bg-0));
}
.page-hero .kicker { justify-content: center; }
.page-hero .kicker::after { content: ""; width: 34px; height: 1px; background: var(--accent); }
.page-hero h1 { font-size: clamp(30px, 4.6vw, 52px); font-weight: 600; color: var(--text-1); }
.page-hero p { margin: 18px auto 0; max-width: 640px; color: var(--text-2); font-size: 16px; line-height: 1.9; }

/* 产品筛选 */
.filters { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; margin: 46px 0 54px; }
.filter-btn {
  padding: 10px 24px;
  font-size: 14px;
  color: var(--text-2);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  transition: all 0.3s;
}
.filter-btn:hover { color: var(--accent-bright); border-color: var(--accent); }
.filter-btn.is-active { background: var(--gold-grad); color: #141008; border-color: transparent; font-weight: 500; }

/* ---------- 16. 响应式 ---------- */
@media (max-width: 1024px) {
  .section { padding: 90px 0; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); gap: 40px 26px; }
  .detail { grid-template-columns: 1fr; gap: 44px; }
  .detail__media { position: static; }
  .about-intro { grid-template-columns: 1fr; gap: 56px; }
  .about-intro__media { max-width: 560px; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 40px 20px; }
  .stat + .stat::before { display: none; }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: 44px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .container { width: min(100% - 36px, var(--container)); }
  .section { padding: 76px 0; }
  .hero { min-height: 100vh; min-height: 100svh; }
  .hero--static .hero__static-bg,
  .hero--center { min-height: 86vh; min-height: 86svh; padding: 110px 0 70px; }
  .hero__content { padding: 116px 22px 56px; }
  .hero__kicker { font-size: 10px; letter-spacing: 0.2em; gap: 12px; flex-wrap: wrap; justify-content: center; }
  .hero__kicker::before, .hero__kicker::after { width: 24px; }
  .hero__en { font-size: clamp(30px, 9.5vw, 48px); letter-spacing: 0.04em; line-height: 1.1; word-spacing: -0.05em; }
  .hero__zh { font-size: 13.5px; letter-spacing: 0.16em; text-indent: 0.16em; line-height: 1.6; }
  .hero__slogan { font-size: 14.5px; }
  .page-hero { padding: calc(var(--nav-h) + 72px) 0 60px; }
  .page-hero h1 { font-size: clamp(26px, 7.4vw, 36px); }
  .page-hero p { font-size: 14.5px; line-height: 1.85; }
  .page-hero .kicker { font-size: 10.5px; letter-spacing: 0.22em; flex-wrap: wrap; }
  .crumbs { padding-top: calc(var(--nav-h) + 22px); font-size: 11px; flex-wrap: wrap; row-gap: 4px; }
  .crumbs .sep { margin: 0 6px; }
  .sec-head { margin-bottom: 40px; }
  .sec-head--center { margin-bottom: 48px; }
  .kicker { font-size: 11px; letter-spacing: 0.24em; margin-bottom: 16px; gap: 10px; }
  .kicker::before { width: 22px; }
  .sec-head--center .kicker::after { width: 22px; }
  .sec-title { font-size: clamp(22px, 5.6vw, 30px); }
  .sec-desc { margin-top: 12px; font-size: 14.5px; line-height: 1.85; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; gap: 18px; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .hero__actions { flex-direction: column; align-items: stretch; gap: 12px; }
  .btn { width: 100%; padding: 15px 24px; font-size: 14.5px; }
  .btn-sm { width: auto; padding: 11px 22px; }
  .hero__actions .btn { width: 100%; }
  .cta-banner { padding: 56px 24px; }
  .cta-banner h2 { font-size: clamp(22px, 5.8vw, 30px); }
  .cta-banner p { font-size: 14px; line-height: 1.85; }
  .cta-banner .kicker { justify-content: center; }
  .marquee span { font-size: 11px; letter-spacing: 0.22em; }
  .footer { padding: 64px 0 0; }
  .footer__grid { grid-template-columns: 1fr; gap: 36px; padding-bottom: 48px; }
  .footer__bar { padding: 22px 0; gap: 10px; font-size: 12px; }
  .footer__bar a { margin-left: 0; margin-right: 14px; }
  .logo--img { gap: 12px; }
  .logo--img .logo__img { height: 36px; }
  .logo--img .logo__sub { display: none; }
  .hero__scroll { bottom: 18px; font-size: 9px; }
  .hero__scroll-line { height: 30px; }
  .detail__media img { aspect-ratio: 4 / 3.4; }
  .detail__thumbs div { flex: 0 0 calc(33.3% - 7px); }
  .detail__title { font-size: clamp(22px, 5.8vw, 30px); }
  .detail__en { font-size: 14px; margin-top: 6px; }
  .spec-row { grid-template-columns: 92px 1fr; }
  .spec-row dt { padding: 12px 14px; font-size: 12.5px; letter-spacing: 0.08em; }
  .spec-row dd { padding: 12px 14px; font-size: 13.5px; }
  .tag { font-size: 12px; padding: 6px 12px; }
  .contact-item { padding: 22px 0; gap: 14px; }
  .contact-item__icon { flex: 0 0 40px; height: 40px; }
  .contact-item h4 { font-size: 14px; }
  .contact-item p { font-size: 13.5px; line-height: 1.75; }
  .stat__num { font-size: clamp(28px, 8.5vw, 40px); }
  .about-intro__media .frame-badge { right: 8px; bottom: 16px; padding: 14px 18px; font-size: 18px; }
  .product-card__body { padding: 18px 20px 20px; }
  .product-card__name { font-size: 16px; }
  .product-card__specs { font-size: 12px; flex-wrap: wrap; gap: 8px; }
}

@media (max-width: 640px) {
  .container { width: min(100% - 32px, var(--container)); }
  .section { padding: 64px 0; }
  .hero__content { padding: 108px 18px 48px; }
  .hero__en { font-size: clamp(26px, 9.4vw, 40px); }
  .hero__zh { font-size: 12.5px; letter-spacing: 0.12em; text-indent: 0.12em; }
  .hero__kicker { font-size: 9.5px; }
  .page-hero h1 { font-size: clamp(22px, 6.6vw, 30px); }
  .float-card--1, .float-card--2 { display: none; }
}

@media (max-width: 380px) {
  .hero__en { font-size: 24px; }
  .hero__zh { font-size: 11.5px; letter-spacing: 0.08em; }
}

/* ---------- 17. 无障碍 / 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; }
  .reveal { opacity: 1; transform: none; }
}