/* ============================================================
   ABELSEN 艾勃升电梯 · 企业官网 v2
   Luxury international corporate — Navy / Champagne Gold
   ============================================================ */

:root {
  --navy-950: #060d1a;
  --navy-900: #0a1628;
  --navy-800: #0e1d36;
  --navy-700: #14284a;
  --gold: #c9a35c;
  --gold-2: #e6cd97;
  --gold-3: #9a7a3e;
  --gold-grad: linear-gradient(135deg, #e6cd97 0%, #c9a35c 45%, #a8823d 100%);
  --ink: #131c2b;
  --ink-soft: #45506280;
  --ink-soft-s: #4a5568;
  --ink-light: #8b94a3;
  --paper: #ffffff;
  --paper-soft: #f5f6f8;
  --line: #e6e9ef;
  --font-sans: "Jost", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --font-display: "Cormorant Garamond", "Noto Serif SC", "Songti SC", Georgia, serif;
  --font-serif-cn: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --ease: cubic-bezier(.22, .8, .28, 1);
  --shadow-xl: 0 40px 80px rgba(6, 13, 26, .22);
  --shadow-lg: 0 26px 56px rgba(6, 13, 26, .16);
  --shadow-md: 0 14px 34px rgba(6, 13, 26, .10);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  font-weight: 300;
}
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .3s; }
ul { list-style: none; }
::selection { background: var(--gold); color: var(--navy-900); }

.container { width: min(1280px, 90%); margin: 0 auto; }

/* ---------- 图标基线 ---------- */
.ic { width: 1em; height: 1em; stroke: currentColor; fill: none; stroke-width: 1.4; stroke-linecap: round; stroke-linejoin: round; vertical-align: -0.12em; }

/* ---------- 通用排版 ---------- */
.section { padding: clamp(90px, 11vw, 150px) 0; position: relative; }
.section-head { max-width: 760px; margin: 0 auto clamp(56px, 7vw, 90px); text-align: center; }
.section-head.align-left { margin-left: 0; text-align: left; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 16px;
  font-size: 12.5px; letter-spacing: 6px; text-transform: uppercase;
  color: var(--gold-3); font-weight: 500; margin-bottom: 22px;
}
.eyebrow .no {
  font-family: var(--font-display); font-size: 15px; letter-spacing: 2px;
  color: var(--gold); font-weight: 600;
}
.eyebrow::before { content: ""; width: 44px; height: 1px; background: linear-gradient(90deg, transparent, var(--gold)); }
.eyebrow.center::after { content: ""; width: 44px; height: 1px; background: linear-gradient(90deg, var(--gold), transparent); }

.section-title {
  font-family: var(--font-serif-cn);
  font-size: clamp(30px, 4.2vw, 50px);
  font-weight: 700; color: var(--navy-900);
  letter-spacing: .08em; line-height: 1.32;
}
.section-sub { margin-top: 20px; color: var(--ink-soft-s); font-size: 16.5px; max-width: 640px; margin-left: auto; margin-right: auto; }
.section-head.align-left .section-sub { margin-left: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 17px 44px; font-size: 14px; letter-spacing: 3px;
  font-weight: 500; border: 1px solid transparent; cursor: pointer;
  transition: all .4s var(--ease); position: relative; overflow: hidden;
  text-transform: uppercase; font-family: inherit;
}
.btn .ic { font-size: 17px; }
.btn-primary { background: var(--gold-grad); color: var(--navy-950); }
.btn-primary::after {
  content: ""; position: absolute; top: 0; left: -80%; width: 50%; height: 100%;
  background: linear-gradient(105deg, transparent, rgba(255,255,255,.55), transparent);
  transform: skewX(-20deg); transition: left .6s var(--ease);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 40px rgba(201, 163, 92, .42); }
.btn-primary:hover::after { left: 130%; }
.btn-ghost { border-color: rgba(255,255,255,.4); color: #fff; background: transparent; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-2); background: rgba(201,163,92,.08); }
.btn-dark { background: var(--navy-900); color: #fff; }
.btn-dark:hover { background: var(--navy-700); transform: translateY(-3px); box-shadow: var(--shadow-lg); }

/* ============================================================
   语言切换
   ============================================================ */
.lang-switch { position: relative; margin-right: 6px; }
.lang-btn {
  display: flex; align-items: center; gap: 8px;
  background: none; border: 1px solid rgba(255,255,255,.25); color: rgba(255,255,255,.85);
  font-family: inherit; font-size: 12.5px; letter-spacing: 2px;
  padding: 8px 14px; cursor: pointer; transition: all .3s;
}
.lang-btn:hover { border-color: var(--gold); color: var(--gold-2); }
.lang-btn .ic { font-size: 15px; }
.lang-btn .caret { font-size: 9px; transition: transform .3s; }
.lang-switch.open .caret { transform: rotate(180deg); }
.lang-menu {
  position: absolute; top: calc(100% + 10px); right: 0;
  background: rgba(10, 22, 40, .97); border: 1px solid rgba(201,163,92,.3);
  min-width: 150px; backdrop-filter: blur(10px);
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: all .3s var(--ease); z-index: 60;
}
.lang-switch.open .lang-menu { opacity: 1; visibility: visible; transform: none; }
.lang-menu button {
  display: flex; width: 100%; align-items: center; justify-content: space-between;
  background: none; border: none; color: rgba(255,255,255,.75);
  font-family: inherit; font-size: 13.5px; letter-spacing: 1.5px;
  padding: 13px 20px; cursor: pointer; transition: all .25s;
}
.lang-menu button:hover { background: rgba(201,163,92,.12); color: var(--gold-2); }
.lang-menu button.active { color: var(--gold); }
.lang-menu button.active::after { content: "●"; font-size: 7px; }

/* ============================================================
   顶部导航
   ============================================================ */
.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  transition: all .45s var(--ease); padding: 22px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.header.scrolled {
  background: rgba(6, 13, 26, .92); backdrop-filter: blur(16px);
  padding: 12px 0; border-bottom-color: rgba(201,163,92,.25);
  box-shadow: 0 10px 40px rgba(0,0,0,.35);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.logo img { height: 46px; width: auto; transition: height .45s var(--ease); }
.header.scrolled .logo img { height: 38px; }

.nav { display: flex; align-items: center; gap: 38px; }
.nav > a:not(.btn) {
  color: rgba(255,255,255,.82); font-size: 14.5px; letter-spacing: 2.5px;
  position: relative; padding: 8px 0; font-weight: 400;
}
.nav > a:not(.btn)::after {
  content: ""; position: absolute; left: 50%; bottom: 0;
  width: 0; height: 1px; background: var(--gold); transition: all .35s var(--ease);
}
.nav > a:not(.btn):hover { color: #fff; }
.nav > a:not(.btn):hover::after, .nav > a.active::after { width: 100%; left: 0; }
.nav > a.active { color: var(--gold-2); }
.nav-right { display: flex; align-items: center; gap: 14px; }

.burger {
  display: none; flex-direction: column; gap: 6px;
  background: none; border: none; cursor: pointer; padding: 8px; z-index: 1002;
}
.burger span { width: 26px; height: 1.5px; background: #fff; transition: all .35s var(--ease); }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  background:
    linear-gradient(115deg, rgba(6,13,26,.93) 0%, rgba(10,22,40,.78) 42%, rgba(20,40,74,.5) 100%),
    url("https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?auto=format&fit=crop&w=2400&q=80") center/cover no-repeat,
    var(--navy-950);
  color: #fff; overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse at 82% 12%, rgba(201,163,92,.16), transparent 52%),
    radial-gradient(ellipse at 6% 90%, rgba(201,163,92,.1), transparent 48%);
}
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 110px 110px;
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 78%);
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 78%);
}
.hero-watermark {
  position: absolute; bottom: -3%; left: 50%; transform: translateX(-50%);
  font-family: var(--font-display); font-size: clamp(120px, 19vw, 300px);
  font-weight: 600; letter-spacing: .06em; line-height: 1; white-space: nowrap;
  color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.06);
  pointer-events: none; user-select: none;
}
.hero-side {
  position: absolute; right: 44px; top: 50%; transform: translateY(-50%);
  writing-mode: vertical-rl; letter-spacing: 10px;
  font-size: 11.5px; color: rgba(255,255,255,.35); text-transform: uppercase;
  display: flex; align-items: center; gap: 18px; z-index: 3;
}
.hero-side::before { content: ""; width: 1px; height: 70px; background: linear-gradient(var(--gold), transparent); }

.hero-inner { position: relative; z-index: 2; padding: clamp(150px, 18vh, 200px) 0 130px; max-width: 880px; }
.hero-tag {
  display: inline-flex; align-items: center; gap: 14px;
  font-size: 12px; letter-spacing: 7px; color: var(--gold-2);
  padding: 12px 26px; margin-bottom: 36px; text-transform: uppercase;
  border: 1px solid rgba(201,163,92,.45); position: relative;
}
.hero-tag::before, .hero-tag::after { content: "✦"; font-size: 8px; color: var(--gold); }
.hero-title {
  font-family: var(--font-serif-cn);
  font-size: clamp(40px, 6.2vw, 78px);
  font-weight: 900; line-height: 1.22; letter-spacing: .06em;
}
.hero-title .gold {
  background: var(--gold-grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: var(--gold);
}
.hero-en {
  font-family: var(--font-display); font-size: clamp(16px, 1.8vw, 22px);
  letter-spacing: .55em; color: rgba(255,255,255,.5);
  text-transform: uppercase; margin: 26px 0 32px;
}
.hero-desc { max-width: 640px; font-size: 16.5px; color: rgba(255,255,255,.75); margin-bottom: 48px; }
.hero-actions { display: flex; gap: 22px; flex-wrap: wrap; }

.hero-stats {
  position: relative; z-index: 2; margin-top: clamp(60px, 9vh, 100px);
  border-top: 1px solid rgba(255,255,255,.14);
  display: grid; grid-template-columns: repeat(4, 1fr);
}
.stat { padding: 38px 12px 0; border-left: 1px solid rgba(255,255,255,.1); }
.stat:first-child { border-left: none; padding-left: 0; }
.stat-num {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(36px, 4vw, 56px); color: var(--gold-2); line-height: 1.05;
  letter-spacing: .02em;
}
.stat-num sup { font-size: .45em; margin-left: 3px; color: var(--gold); }
.stat-label { margin-top: 10px; font-size: 13px; letter-spacing: 3px; color: rgba(255,255,255,.6); }

.scroll-hint {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  z-index: 3; color: rgba(255,255,255,.45); font-size: 10.5px; letter-spacing: 5px;
  display: flex; flex-direction: column; align-items: center; gap: 12px;
}
.scroll-hint::after {
  content: ""; width: 1px; height: 48px;
  background: linear-gradient(var(--gold), transparent);
  animation: drop 2s ease-in-out infinite;
}
@keyframes drop {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================================
   走马灯
   ============================================================ */
.marquee {
  background: var(--navy-950); overflow: hidden; padding: 26px 0;
  border-top: 1px solid rgba(201,163,92,.22);
  border-bottom: 1px solid rgba(201,163,92,.22);
}
.marquee-track { display: flex; width: max-content; animation: marquee 34s linear infinite; }
.marquee-item {
  display: flex; align-items: center; gap: 64px; padding-right: 64px;
  color: rgba(255,255,255,.5); font-size: 14px; letter-spacing: 5px; white-space: nowrap;
}
.marquee-item::after { content: ""; width: 6px; height: 6px; background: var(--gold); transform: rotate(45deg); flex-shrink: 0; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ============================================================
   关于
   ============================================================ */
.about-grid { display: grid; grid-template-columns: 1.02fr 1fr; gap: clamp(50px, 7vw, 100px); align-items: center; }
.about-visual { position: relative; }
.about-visual .frame { position: relative; }
.about-visual .main-img { width: 100%; height: clamp(380px, 46vw, 560px); object-fit: cover; box-shadow: var(--shadow-xl); }
.about-visual .frame::before {
  content: ""; position: absolute; top: -22px; left: -22px;
  width: 120px; height: 120px;
  border-top: 1px solid var(--gold); border-left: 1px solid var(--gold);
  z-index: 1;
}
.about-visual .frame::after {
  content: ""; position: absolute; bottom: -22px; right: -22px;
  width: 120px; height: 120px;
  border-bottom: 1px solid var(--gold); border-right: 1px solid var(--gold);
}
.about-visual .badge-card {
  position: absolute; bottom: -46px; right: -34px; z-index: 2;
  background: var(--navy-950); color: #fff; padding: 36px 44px;
  box-shadow: var(--shadow-xl); border-top: 2px solid var(--gold);
}
.badge-card .num { font-family: var(--font-display); font-size: 46px; font-weight: 600; color: var(--gold-2); line-height: 1; }
.badge-card .num sup { font-size: .45em; }
.badge-card .txt { margin-top: 10px; font-size: 12.5px; letter-spacing: 3px; color: rgba(255,255,255,.65); }

.about-copy .lead {
  font-size: 18.5px; color: var(--navy-800); font-weight: 400; line-height: 2;
  margin-bottom: 24px;
}
.about-copy > p { color: var(--ink-soft-s); margin-bottom: 18px; font-size: 15.5px; }
.about-points { margin: 32px 0 42px; display: grid; grid-template-columns: 1fr 1fr; gap: 16px 32px; }
.about-points li { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; color: var(--ink); }
.about-points .ic { color: var(--gold); font-size: 17px; flex-shrink: 0; margin-top: 4px; }

/* ============================================================
   历史沿革
   ============================================================ */
.history { background: var(--navy-950); color: #fff; overflow: hidden; }
.history::before {
  content: "1887"; position: absolute; right: -2%; top: 4%;
  font-family: var(--font-display); font-size: clamp(150px, 24vw, 340px);
  font-weight: 600; line-height: 1; color: rgba(255,255,255,.025); pointer-events: none;
}
.history .section-title { color: #fff; }
.history .section-sub { color: rgba(255,255,255,.55); }
.history .eyebrow { color: var(--gold-2); }
.history .eyebrow::before, .history .eyebrow::after { background: linear-gradient(90deg, transparent, var(--gold), transparent); }

.timeline { position: relative; max-width: 920px; margin: 0 auto; padding-left: 46px; }
.timeline::before {
  content: ""; position: absolute; left: 9px; top: 8px; bottom: 8px; width: 1px;
  background: linear-gradient(rgba(201,163,92,0), var(--gold) 10%, var(--gold) 90%, rgba(201,163,92,0));
}
.tl-item { position: relative; padding: 0 0 clamp(44px, 6vw, 64px) 46px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: ""; position: absolute; left: -46px; top: 14px;
  width: 19px; height: 19px; border: 1px solid var(--gold); border-radius: 50%;
  background: var(--navy-950); transition: all .4s var(--ease);
}
.tl-item::after {
  content: ""; position: absolute; left: -41px; top: 19px;
  width: 9px; height: 9px; border-radius: 50%; background: var(--gold); opacity: 0;
  transition: all .4s var(--ease);
}
.tl-item:hover::after { opacity: 1; box-shadow: 0 0 14px rgba(201,163,92,.8); }
.tl-year {
  font-family: var(--font-display); font-size: clamp(36px, 4vw, 48px);
  font-weight: 600; color: var(--gold-2); line-height: 1.1; letter-spacing: .04em;
}
.tl-title { font-family: var(--font-serif-cn); font-size: 20px; font-weight: 700; margin: 12px 0 12px; letter-spacing: .12em; }
.tl-desc { color: rgba(255,255,255,.58); max-width: 660px; font-size: 15px; }

/* ============================================================
   产品矩阵（首页）
   ============================================================ */
.products { background: var(--paper-soft); }
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.product-card {
  background: #fff; border: 1px solid var(--line); padding: 48px 38px;
  position: relative; transition: all .5s var(--ease); overflow: hidden;
}
.product-card .idx {
  position: absolute; top: 26px; right: 30px;
  font-family: var(--font-display); font-size: 44px; font-weight: 500;
  color: rgba(19,28,43,.07); line-height: 1; transition: color .5s;
}
.product-card::before {
  content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 2px;
  background: var(--gold-grad); transform: scaleX(0); transform-origin: left;
  transition: transform .5s var(--ease);
}
.product-card:hover { transform: translateY(-10px); box-shadow: var(--shadow-xl); border-color: transparent; }
.product-card:hover::before { transform: scaleX(1); }
.product-card:hover .idx { color: rgba(201,163,92,.35); }
.product-ico {
  width: 66px; height: 66px; display: flex; align-items: center; justify-content: center;
  color: var(--gold-3); margin-bottom: 28px; position: relative;
}
.product-ico::before {
  content: ""; position: absolute; inset: 0;
  border: 1px solid rgba(201,163,92,.4); transform: rotate(45deg);
  transition: all .5s var(--ease); background: rgba(201,163,92,.05);
}
.product-card:hover .product-ico::before { background: var(--gold-grad); border-color: transparent; }
.product-card:hover .product-ico { color: var(--navy-950); }
.product-ico .ic { font-size: 28px; position: relative; z-index: 1; }
.product-card h3 { font-family: var(--font-serif-cn); font-size: 21px; font-weight: 700; color: var(--navy-900); letter-spacing: .1em; margin-bottom: 8px; }
.product-card .en { font-family: var(--font-display); font-size: 12px; letter-spacing: 4px; text-transform: uppercase; color: var(--gold-3); margin-bottom: 18px; }
.product-card p { font-size: 14.5px; color: var(--ink-soft-s); margin-bottom: 26px; min-height: 76px; }
.product-link {
  font-size: 13px; letter-spacing: 2.5px; color: var(--navy-800); font-weight: 500;
  display: inline-flex; align-items: center; gap: 10px; text-transform: uppercase;
}
.product-link::after { content: "→"; transition: transform .35s var(--ease); color: var(--gold-3); }
.product-card:hover .product-link::after { transform: translateX(7px); }

/* ============================================================
   全球布局
   ============================================================ */
.global-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line); border: 1px solid var(--line);
}
.global-cell { background: #fff; padding: 56px 38px; transition: all .5s var(--ease); position: relative; overflow: hidden; }
.global-cell::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 2px;
  background: var(--gold-grad); transform: scaleX(0); transform-origin: left; transition: transform .5s var(--ease);
}
.global-cell:hover { background: var(--navy-950); }
.global-cell:hover::after { transform: scaleX(1); }
.global-cell .g-num {
  font-family: var(--font-display); font-size: clamp(44px, 4.6vw, 60px);
  font-weight: 600; color: var(--navy-900); line-height: 1; transition: color .5s;
}
.global-cell .g-num sup { font-size: .42em; color: var(--gold-3); }
.global-cell:hover .g-num { color: var(--gold-2); }
.global-cell .g-label { margin-top: 16px; font-size: 14.5px; letter-spacing: 2.5px; color: var(--ink-soft-s); transition: color .5s; }
.global-cell:hover .g-label { color: rgba(255,255,255,.85); }

/* ============================================================
   品牌文化
   ============================================================ */
.culture { background: linear-gradient(165deg, var(--navy-800), var(--navy-950) 70%); color: #fff; }
.culture .section-title { color: #fff; }
.culture .section-sub { color: rgba(255,255,255,.55); }
.culture .eyebrow { color: var(--gold-2); }
.culture-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.culture-card {
  border: 1px solid rgba(255,255,255,.12); padding: 56px 42px;
  transition: all .5s var(--ease); position: relative; overflow: hidden;
}
.culture-card::after {
  content: attr(data-word); position: absolute; right: 20px; top: 10px;
  font-family: var(--font-serif-cn); font-size: 96px; font-weight: 900;
  color: rgba(255,255,255,.035); line-height: 1; pointer-events: none;
  transition: color .5s;
}
.culture-card:hover { border-color: rgba(201,163,92,.5); transform: translateY(-8px); background: rgba(255,255,255,.025); }
.culture-card:hover::after { color: rgba(201,163,92,.1); }
.culture-card .c-cn { font-family: var(--font-serif-cn); font-size: 27px; font-weight: 700; letter-spacing: .5em; color: var(--gold-2); margin-bottom: 8px; }
.culture-card .c-en { font-family: var(--font-display); font-size: 12px; letter-spacing: 5px; text-transform: uppercase; color: rgba(255,255,255,.38); margin-bottom: 24px; }
.culture-card p { color: rgba(255,255,255,.68); font-size: 14.5px; }

.vision {
  margin-top: clamp(70px, 9vw, 110px); text-align: center; position: relative;
  padding-top: clamp(50px, 7vw, 80px);
}
.vision::before {
  content: ""; position: absolute; top: 0; left: 50%; transform: translateX(-50%);
  width: 60px; height: 1px; background: var(--gold);
}
.vision h3 {
  font-family: var(--font-serif-cn); font-size: clamp(24px, 3vw, 34px);
  font-weight: 700; letter-spacing: .3em; color: var(--gold-2); margin-bottom: 22px;
}
.vision p { color: rgba(255,255,255,.6); max-width: 680px; margin: 0 auto; font-size: 15.5px; }

/* ============================================================
   CTA
   ============================================================ */
.cta {
  position: relative; padding: clamp(100px, 13vw, 150px) 0; text-align: center; color: #fff;
  background:
    linear-gradient(105deg, rgba(6,13,26,.94), rgba(20,40,74,.84)),
    url("https://images.unsplash.com/photo-1497366754035-f200968a6e72?auto=format&fit=crop&w=2000&q=80") center/cover no-repeat;
}
.cta h2 {
  font-family: var(--font-serif-cn); font-size: clamp(28px, 4.2vw, 46px);
  font-weight: 700; letter-spacing: .12em; margin-bottom: 22px; line-height: 1.4;
}
.cta h2 .gold { color: var(--gold-2); }
.cta p { color: rgba(255,255,255,.68); max-width: 600px; margin: 0 auto 44px; }

/* ============================================================
   联系
   ============================================================ */
.contact { background: var(--paper-soft); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(44px, 6vw, 80px); }
.contact-info h3 { font-family: var(--font-serif-cn); font-size: 26px; letter-spacing: .15em; color: var(--navy-900); margin: 18px 0 20px; }
.info-row { display: flex; gap: 20px; padding: 22px 0; border-bottom: 1px solid var(--line); }
.info-row .ico {
  width: 48px; height: 48px; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  background: var(--navy-950); color: var(--gold-2); font-size: 20px; transition: all .4s;
}
.info-row:hover .ico { background: var(--gold-grad); color: var(--navy-950); }
.info-row .label { font-size: 12px; letter-spacing: 3px; color: var(--ink-light); text-transform: uppercase; }
.info-row .val { font-size: 15.5px; color: var(--ink); font-weight: 400; margin-top: 4px; }

.contact-form { background: #fff; border: 1px solid var(--line); padding: clamp(30px, 4vw, 52px); box-shadow: var(--shadow-md); position: relative; }
.contact-form::before { content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: var(--gold-grad); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field { margin-bottom: 22px; }
.field label { display: block; font-size: 12.5px; letter-spacing: 2.5px; color: var(--ink-soft-s); margin-bottom: 9px; font-weight: 500; text-transform: uppercase; }
.field input, .field select, .field textarea {
  width: 100%; padding: 14px 16px; border: 1px solid var(--line);
  background: var(--paper-soft); font-size: 15px; font-family: inherit; font-weight: 300;
  color: var(--ink); transition: all .3s; outline: none; border-radius: 0;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--gold); background: #fff; box-shadow: 0 0 0 3px rgba(201,163,92,.14);
}
.field textarea { min-height: 120px; resize: vertical; }
.form-note { font-size: 12px; color: var(--ink-light); margin-top: 16px; }

/* ---------- 服务热线卡片（替代留言板） ---------- */
.phone-card {
  background: linear-gradient(160deg, var(--navy-800), var(--navy-950));
  color: #fff; padding: clamp(38px, 5vw, 60px);
  position: relative; overflow: hidden; box-shadow: var(--shadow-xl);
}
.phone-card::before {
  content: ""; position: absolute; top: 0; left: 0; width: 100%; height: 3px;
  background: var(--gold-grad);
}
.phone-card::after {
  content: "189"; position: absolute; right: -14px; bottom: -34px;
  font-family: var(--font-display); font-size: 170px; font-weight: 600;
  color: rgba(255,255,255,.04); line-height: 1; pointer-events: none;
}
.pc-top { display: flex; align-items: center; gap: 14px; margin-bottom: 20px; }
.pc-ico {
  width: 52px; height: 52px; display: flex; align-items: center; justify-content: center;
  background: rgba(201,163,92,.15); border: 1px solid rgba(201,163,92,.4);
  color: var(--gold-2); font-size: 22px;
}
.pc-label { font-size: 13px; letter-spacing: 4px; text-transform: uppercase; color: rgba(255,255,255,.6); }
.pc-num {
  display: block; font-family: var(--font-display); font-size: clamp(34px, 4vw, 52px);
  font-weight: 600; letter-spacing: .06em; color: var(--gold-2); line-height: 1.15;
  transition: color .3s;
}
.pc-num:hover { color: #fff; }
.pc-tip { margin: 16px 0 28px; color: rgba(255,255,255,.6); font-size: 14.5px; max-width: 420px; }
.pc-lines { margin-top: 34px; border-top: 1px solid rgba(255,255,255,.12); padding-top: 24px; }
.pc-line { display: flex; justify-content: space-between; gap: 16px; padding: 9px 0; font-size: 14px; }
.pc-line span { color: rgba(255,255,255,.5); letter-spacing: 1.5px; flex-shrink: 0; }
.pc-line b { color: rgba(255,255,255,.85); font-weight: 400; text-align: right; }

/* ============================================================
   页脚
   ============================================================ */
.footer { background: var(--navy-950); color: rgba(255,255,255,.55); padding: clamp(70px, 9vw, 100px) 0 0; }
.footer-grid {
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: clamp(30px, 4vw, 60px);
  padding-bottom: clamp(46px, 6vw, 70px); border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer .logo { display: inline-block; margin-bottom: 24px; }
.footer .logo img { height: 44px; }
.footer-about { font-size: 14px; line-height: 2; }
.footer h4 {
  color: #fff; font-family: var(--font-serif-cn); font-size: 16.5px; letter-spacing: .25em;
  margin-bottom: 26px; position: relative; padding-bottom: 14px; font-weight: 700;
}
.footer h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 1px; background: var(--gold); }
.footer-links li { margin-bottom: 13px; }
.footer-links a { font-size: 14px; color: rgba(255,255,255,.55); transition: all .3s; }
.footer-links a:hover { color: var(--gold-2); padding-left: 6px; }
.footer-contact li { margin-bottom: 14px; font-size: 14px; display: flex; gap: 10px; }
.footer-contact li::before { content: "—"; color: var(--gold); flex-shrink: 0; }
.footer-bottom {
  padding: 26px 0; display: flex; justify-content: space-between; align-items: center;
  font-size: 12.5px; letter-spacing: 1px; flex-wrap: wrap; gap: 10px; color: rgba(255,255,255,.4);
}
.footer-bottom a:hover { color: var(--gold-2); }

/* ============================================================
   产品页
   ============================================================ */
.page-banner {
  position: relative; padding: clamp(180px, 24vh, 240px) 0 clamp(90px, 12vw, 130px);
  background:
    linear-gradient(110deg, rgba(6,13,26,.94), rgba(14,29,54,.8)),
    url("https://images.unsplash.com/photo-1481253127861-534498168948?auto=format&fit=crop&w=2400&q=80") center/cover no-repeat;
  color: #fff; overflow: hidden;
}
.page-banner::after {
  content: "PRODUCTS"; position: absolute; bottom: 4%; right: 3%;
  font-family: var(--font-display); font-size: clamp(80px, 12vw, 180px);
  color: transparent; -webkit-text-stroke: 1px rgba(255,255,255,.07);
  line-height: 1; pointer-events: none;
}
.page-banner .crumb { font-size: 12px; letter-spacing: 4px; color: rgba(255,255,255,.5); margin-bottom: 24px; text-transform: uppercase; }
.page-banner .crumb a:hover { color: var(--gold-2); }
.page-banner h1 { font-family: var(--font-serif-cn); font-size: clamp(34px, 5vw, 58px); letter-spacing: .18em; font-weight: 700; }
.page-banner .en { font-family: var(--font-display); letter-spacing: .5em; color: var(--gold-2); text-transform: uppercase; margin-top: 18px; font-size: 15px; }

.pd-section { padding: clamp(80px, 10vw, 130px) 0; border-bottom: 1px solid var(--line); }
.pd-section:last-of-type { border-bottom: none; }
.pd-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(44px, 7vw, 90px); align-items: center; }
.pd-grid.flip .pd-img { order: 2; }
.pd-img { position: relative; }
.pd-img img { width: 100%; height: clamp(320px, 38vw, 460px); object-fit: cover; box-shadow: var(--shadow-lg); }
.pd-img::before {
  content: ""; position: absolute; top: -18px; left: -18px; width: 90px; height: 90px;
  border-top: 1px solid var(--gold); border-left: 1px solid var(--gold); z-index: 1;
}
.pd-tag { font-family: var(--font-display); font-size: 13px; letter-spacing: 5px; color: var(--gold-3); text-transform: uppercase; margin-bottom: 14px; }
.pd-copy h2 { font-family: var(--font-serif-cn); font-size: clamp(26px, 3.2vw, 38px); color: var(--navy-900); letter-spacing: .12em; margin-bottom: 20px; font-weight: 700; }
.pd-copy p { color: var(--ink-soft-s); margin-bottom: 14px; font-size: 15.5px; }
.spec-list { margin-top: 30px; }
.spec-list li { display: flex; justify-content: space-between; gap: 20px; padding: 13px 0; border-bottom: 1px dashed var(--line); font-size: 14.5px; }
.spec-list li span:first-child { color: var(--ink-light); letter-spacing: 1.5px; }
.spec-list li span:last-child { color: var(--ink); font-weight: 400; text-align: right; }

/* ============================================================
   入场动画
   ============================================================ */
.reveal { opacity: 0; transform: translateY(42px); transition: opacity .9s ease, transform .9s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: .12s; }
.reveal-delay-2 { transition-delay: .24s; }
.reveal-delay-3 { transition-delay: .36s; }

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1080px) {
  .product-grid { grid-template-columns: repeat(2, 1fr); }
  .global-grid { grid-template-columns: repeat(2, 1fr); }
  .about-grid, .pd-grid { grid-template-columns: 1fr; gap: 60px; }
  .pd-grid.flip .pd-img { order: 0; }
  .about-visual .badge-card { right: 12px; bottom: -30px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .hero-side { display: none; }
  .product-card p { min-height: 0; }
}

@media (max-width: 820px) {
  .nav {
    position: fixed; inset: 0; left: auto; width: min(360px, 86%);
    background: linear-gradient(160deg, var(--navy-900), var(--navy-950));
    flex-direction: column; justify-content: center; gap: 8px;
    transition: transform .5s var(--ease); transform: translateX(100%);
    box-shadow: -30px 0 80px rgba(0,0,0,.5); z-index: 1001; padding: 40px;
  }
  .nav.open { transform: none; }
  .nav > a:not(.btn) { font-size: 17px; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,.06); width: 100%; }
  .nav .btn { margin-top: 24px; }
  .lang-switch { position: absolute; top: 24px; right: 90px; margin: 0; }
  .burger { display: flex; }
  .burger.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
  .burger.open span:nth-child(2) { opacity: 0; }
  .burger.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }
  body.menu-open { overflow: hidden; }
}

@media (max-width: 720px) {
  .section { padding: 80px 0; }
  .product-grid, .culture-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero-inner { padding: 150px 0 90px; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); row-gap: 10px; }
  .stat { border-left: none; padding: 26px 0 0; }
  .hero-watermark { font-size: 34vw; }
  .about-points { grid-template-columns: 1fr; }
  .about-visual .badge-card { position: static; margin-top: 24px; padding: 28px 34px; }
  .about-visual .frame::before, .about-visual .frame::after { display: none; }
  .contact-form { padding: 30px 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 38px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .logo img { height: 38px; }
}