/* ==========================================================================
   恒睿聚达（武汉）新材料科技有限公司 —— 官网样式
   风格：简约大气 / 暖白纸感 / 墨绿主色 / 铜金点缀 / 衬线标题
   ========================================================================== */

:root {
  --paper: #faf9f6;
  --paper-2: #f2f0ea;
  --white: #ffffff;
  --ink: #0e1d1b;
  --ink-2: #1c302d;
  --jade: #0f4f47;
  --jade-2: #14665c;
  --gold: #b5893f;
  --muted: #6c7a77;
  --line: rgba(14, 29, 27, 0.1);
  --line-2: rgba(14, 29, 27, 0.16);
  --shadow: 0 24px 60px -28px rgba(14, 29, 27, 0.28);
  --serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --hd-h: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; letter-spacing: 0.02em; margin: 0; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

.wrap { width: 100%; max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.wrap-sm { width: 100%; max-width: 860px; margin: 0 auto; padding: 0 32px; }

/* ---------- 顶部导航 ---------- */
.hd {
  position: fixed; inset: 0 0 auto 0; z-index: 90;
  height: var(--hd-h);
  display: flex; align-items: center;
  background: rgba(250, 249, 246, 0);
  transition: background 0.4s var(--ease), box-shadow 0.4s var(--ease), border-color 0.4s;
  border-bottom: 1px solid transparent;
}
.hd.solid {
  background: rgba(250, 249, 246, 0.92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom-color: var(--line);
}
.hd.on-dark:not(.solid) { color: #fff; }
.hd-in {
  display: flex; align-items: center; gap: 40px;
  width: 100%; max-width: 1320px; margin: 0 auto; padding: 0 32px;
}
.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand-mark {
  width: 38px; height: 38px; flex: none;
  display: grid; place-items: center;
  border: 1px solid currentColor; border-radius: 2px;
  font-family: var(--serif); font-size: 20px; font-weight: 600; line-height: 1;
  letter-spacing: 0;
}
.brand-txt { display: flex; flex-direction: column; line-height: 1.15; }
.brand-txt b { font-family: var(--serif); font-size: 19px; font-weight: 600; letter-spacing: 0.08em; }
.brand-txt i {
  font-style: normal; font-size: 9.5px; letter-spacing: 0.22em;
  opacity: 0.6; margin-top: 3px; text-transform: uppercase;
}
.nav { display: flex; align-items: center; gap: 34px; margin-left: auto; }
.nav a {
  position: relative; font-size: 15px; letter-spacing: 0.04em;
  padding: 6px 0; opacity: 0.78; transition: opacity 0.25s;
}
.nav a::after {
  content: ''; position: absolute; left: 0; bottom: 0; height: 1px; width: 0;
  background: currentColor; transition: width 0.32s var(--ease);
}
.nav a:hover { opacity: 1; }
.nav a:hover::after, .nav a.active::after { width: 100%; }
.nav a.active { opacity: 1; }
.hd-act { display: flex; align-items: center; gap: 12px; flex: none; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  height: 44px; padding: 0 24px; border: 1px solid transparent; border-radius: 2px;
  font-size: 14.5px; letter-spacing: 0.06em; white-space: nowrap;
  transition: transform 0.3s var(--ease), background 0.3s, color 0.3s, border-color 0.3s;
}
.btn:active { transform: translateY(1px); }
.btn-solid { background: var(--jade); color: #fff; }
.btn-solid:hover { background: var(--jade-2); }
.btn-line { border-color: var(--line-2); color: inherit; }
.btn-line:hover { border-color: currentColor; background: rgba(14, 29, 27, 0.04); }
.btn-ghost { color: inherit; opacity: 0.82; padding: 0 12px; }
.btn-ghost:hover { opacity: 1; }
.btn-lg { height: 52px; padding: 0 32px; font-size: 15px; }
.btn-block { width: 100%; }
.btn[disabled] { opacity: 0.5; pointer-events: none; }

.menu-btn {
  display: none; width: 44px; height: 44px; flex: none;
  border: 0; background: none; padding: 0; margin: 0; border-radius: 6px;
  outline: 0; -webkit-appearance: none; -webkit-tap-highlight-color: transparent;
  color: inherit; cursor: pointer; position: relative;
}
.menu-btn:focus-visible { box-shadow: 0 0 0 2px currentColor; }
.menu-btn span {
  position: absolute; left: 13px; right: 13px; height: 1.5px; border-radius: 2px;
  background: currentColor; transition: transform 0.3s var(--ease), opacity 0.2s;
}
.menu-btn span:first-child { top: 18px; }
.menu-btn span:last-child { top: 25.5px; }
body.menu-open .menu-btn span:first-child { transform: translateY(3.75px) rotate(45deg); }
body.menu-open .menu-btn span:last-child { transform: translateY(-3.75px) rotate(-45deg); }

/* ---------- 首屏（双产品轮播） ---------- */
.hero {
  position: relative;
  color: #fff; overflow: hidden;
  background: #0b1a18;
}
.hero-slides { display: grid; }
.hero-slide {
  grid-area: 1 / 1;
  position: relative;
  display: flex; align-items: flex-end;
  min-height: 92vh;
  padding: calc(var(--hd-h) + 60px) 0 122px;
  opacity: 0; visibility: hidden;
  transition: opacity .9s var(--ease), visibility .9s var(--ease), z-index 0s .9s;
}
.hero-slide.is-active { opacity: 1; visibility: visible; z-index: 2; transition-delay: 0s; }
.hero-media { position: absolute; inset: 0; }
.hero-media img {
  width: 100%; height: 100%; object-fit: cover;
  transform: scale(1.04);
}
.hero-slide.is-active .hero-media img { animation: heroZoom 9s var(--ease) forwards; }
@keyframes heroZoom { from { transform: scale(1.06); } to { transform: scale(1); } }
.hero-media::after {
  content: ''; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(8, 20, 18, 0.72) 0%, rgba(8, 20, 18, 0.38) 42%, rgba(8, 20, 18, 0.82) 100%),
    linear-gradient(90deg, rgba(8, 20, 18, 0.55), rgba(8, 20, 18, 0) 62%);
}
.hero-in { position: relative; z-index: 2; width: 100%; }
.hero-eyebrow {
  display: flex; align-items: center; gap: 14px;
  font-size: 12.5px; letter-spacing: 0.24em; text-transform: uppercase; opacity: 0.86;
}
.hero-eyebrow::before { content: ''; width: 46px; height: 1px; background: var(--gold); }
.hero h1 {
  font-size: clamp(38px, 6.2vw, 76px); line-height: 1.18; font-weight: 600;
  letter-spacing: 0.06em; margin: 26px 0 0; max-width: 16em;
}
.hero h1 em { font-style: normal; color: #e8c98d; }
.hero-sub {
  margin-top: 26px; max-width: 34em; font-size: clamp(15px, 1.4vw, 17.5px);
  line-height: 1.9; color: rgba(255, 255, 255, 0.82); font-weight: 300;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 40px; }
.hero-cta .btn-line { border-color: rgba(255, 255, 255, 0.42); color: #fff; }
.hero-cta .btn-line:hover { background: rgba(255, 255, 255, 0.1); border-color: #fff; }
.hero-cta .btn-solid { background: #fff; color: var(--ink); }
.hero-cta .btn-solid:hover { background: #f0ece3; }
.hero-foot {
  position: relative; z-index: 2; margin-top: 72px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  border-top: 1px solid rgba(255, 255, 255, 0.18);
  padding-top: 26px;
}
.hero-foot div { padding-right: 18px; }
.hero-foot b {
  display: block; font-family: var(--serif); font-size: 26px; font-weight: 600;
  letter-spacing: 0.04em; color: #fff;
}
.hero-foot span { font-size: 12.5px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.6); }

/* 切屏文字入场：只在当前屏播放，且基础态可见（动画被禁用也不会空白） */
.hero-slide.is-active .hero-eyebrow { animation: heroUp .7s .05s var(--ease) both; }
.hero-slide.is-active h1 { animation: heroUp .8s .12s var(--ease) both; }
.hero-slide.is-active .hero-sub { animation: heroUp .8s .22s var(--ease) both; }
.hero-slide.is-active .hero-cta { animation: heroUp .8s .32s var(--ease) both; }
.hero-slide.is-active .hero-foot { animation: heroUp .8s .42s var(--ease) both; }
@keyframes heroUp { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

/* 底部切换器 */
.hero-dots-wrap { position: absolute; left: 0; right: 0; bottom: 36px; z-index: 6; }
.hero-dots { display: flex; flex-wrap: wrap; gap: 30px; }
.hero-dot {
  display: flex; align-items: center; gap: 11px;
  background: none; border: none; cursor: pointer; padding: 6px 0;
  font-family: inherit; font-size: 13px; letter-spacing: 0.1em;
  color: rgba(255, 255, 255, 0.55);
  transition: color .3s var(--ease);
}
.hero-dot:hover { color: rgba(255, 255, 255, 0.85); }
.hero-dot i {
  display: block; width: 36px; height: 2px; position: relative; overflow: hidden;
  background: rgba(255, 255, 255, 0.26);
}
.hero-dot i::after {
  content: ''; position: absolute; inset: 0; background: var(--gold);
  transform: scaleX(0); transform-origin: left;
}
.hero-dot.is-active { color: #fff; }
.hero-dot.is-active i::after { animation: heroDotFill var(--hero-dur, 7000ms) linear forwards; }
.hero.is-paused .hero-dot.is-active i::after { animation-play-state: paused; }
@keyframes heroDotFill { from { transform: scaleX(0); } to { transform: scaleX(1); } }

@media (prefers-reduced-motion: reduce) {
  .hero-slide.is-active .hero-media img,
  .hero-slide.is-active .hero-eyebrow,
  .hero-slide.is-active h1,
  .hero-slide.is-active .hero-sub,
  .hero-slide.is-active .hero-cta,
  .hero-slide.is-active .hero-foot,
  .hero-dot.is-active i::after { animation: none !important; }
  .hero-dot.is-active i::after { transform: scaleX(1); }
}

/* ---------- 通用区块 ---------- */
.sec { padding: 108px 0; }
.sec-tight { padding: 76px 0; }
.sec-paper { background: var(--paper-2); }
.sec-white { background: var(--white); }
.sec-ink { background: var(--ink); color: #fff; }

.sec-head { max-width: 720px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 12px; letter-spacing: 0.24em; text-transform: uppercase; color: var(--gold);
}
.eyebrow::before { content: ''; width: 30px; height: 1px; background: currentColor; }
.sec-head h2 {
  font-size: clamp(28px, 3.4vw, 42px); line-height: 1.35; letter-spacing: 0.04em;
  margin: 20px 0 0;
}
.sec-head p {
  margin-top: 20px; color: var(--muted); font-size: 16px; line-height: 1.95; font-weight: 300;
}
.sec-ink .sec-head p { color: rgba(255, 255, 255, 0.66); }
.sec-head-row {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; flex-wrap: wrap;
}

/* ---------- 业务卡片 ---------- */
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.biz {
  position: relative; display: flex; flex-direction: column;
  background: var(--white); border: 1px solid var(--line);
  transition: transform 0.45s var(--ease), box-shadow 0.45s var(--ease), border-color 0.3s;
  overflow: hidden;
}
.biz:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--line-2); }
.biz-img { position: relative; aspect-ratio: 4 / 3; overflow: hidden; background: var(--paper-2); }
.biz-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 1.2s var(--ease); }
.biz:hover .biz-img img { transform: scale(1.06); }
.biz-body { padding: 26px 26px 30px; flex: 1; display: flex; flex-direction: column; }
.biz-body h3 { font-size: 19px; letter-spacing: 0.05em; }
.biz-body p { margin-top: 12px; font-size: 14px; line-height: 1.85; color: var(--muted); flex: 1; }
.biz-num {
  position: absolute; top: 16px; left: 16px; z-index: 2;
  font-family: var(--serif); font-size: 12px; letter-spacing: 0.16em;
  color: #fff; background: rgba(14, 29, 27, 0.5); backdrop-filter: blur(4px);
  padding: 4px 10px;
}
.biz-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.biz-tags span {
  font-size: 12px; letter-spacing: 0.05em; color: var(--jade);
  border: 1px solid rgba(15, 79, 71, 0.22); padding: 3px 9px;
}

/* ---------- 服务要点（编号列表） ---------- */
.feats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.feat { background: var(--paper); padding: 38px 36px 42px; transition: background 0.35s; }
.sec-white .feat { background: var(--white); }
.feat:hover { background: #f3f1ea; }
.feat-no {
  font-family: var(--serif); font-size: 13px; letter-spacing: 0.18em; color: var(--gold);
}
.feat h4 { margin-top: 16px; font-size: 20px; letter-spacing: 0.05em; }
.feat p { margin-top: 12px; font-size: 14.5px; line-height: 1.9; color: var(--muted); font-weight: 300; }

/* ---------- 分栏内容 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.split-media { position: relative; }
.split-media img { width: 100%; height: 100%; object-fit: cover; aspect-ratio: 4 / 3; }
.split-media::after {
  content: ''; position: absolute; inset: 18px -18px -18px 18px;
  border: 1px solid var(--line-2); z-index: -1;
}

/* ---------- 数据条 ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.stat { padding: 34px 26px 34px 0; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat b {
  display: block; font-family: var(--serif); font-size: clamp(30px, 3.4vw, 44px);
  font-weight: 600; letter-spacing: 0.02em; color: var(--jade); line-height: 1.1;
}
.stat b small { font-size: 15px; letter-spacing: 0.06em; margin-left: 4px; color: var(--muted); }
.stat span { display: block; margin-top: 10px; font-size: 13.5px; letter-spacing: 0.1em; color: var(--muted); }

/* ---------- 行业标签 ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.chips li {
  padding: 10px 20px; border: 1px solid var(--line-2); font-size: 14px;
  letter-spacing: 0.08em; transition: all 0.3s var(--ease);
}
.chips li:hover { background: var(--jade); color: #fff; border-color: var(--jade); }

/* ---------- CTA ---------- */
.cta { position: relative; overflow: hidden; background: var(--ink); color: #fff; padding: 96px 0; }
.cta::before {
  content: 'HENGRAY'; position: absolute; right: -2%; bottom: -34px;
  font-family: var(--serif); font-size: clamp(120px, 22vw, 300px); line-height: 1;
  color: rgba(255, 255, 255, 0.035); letter-spacing: 0.06em; pointer-events: none;
}
.cta-in { position: relative; z-index: 2; display: flex; align-items: center; justify-content: space-between; gap: 48px; flex-wrap: wrap; }
.cta h2 { font-size: clamp(26px, 3.2vw, 40px); line-height: 1.4; letter-spacing: 0.04em; }
.cta p { margin-top: 16px; color: rgba(255, 255, 255, 0.66); font-weight: 300; max-width: 34em; }
.cta .btn-solid { background: #fff; color: var(--ink); }
.cta .btn-solid:hover { background: #eee9df; }

/* ---------- 页脚 ---------- */
.ft { background: #0b1917; color: rgba(255, 255, 255, 0.62); padding: 76px 0 30px; font-size: 14px; }
.ft-top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 48px; padding-bottom: 54px; }
.ft .brand { color: #fff; margin-bottom: 22px; }
.ft-about { font-size: 13.5px; line-height: 1.95; color: rgba(255, 255, 255, 0.5); max-width: 30em; }
.ft h5 {
  font-family: var(--sans); font-size: 13px; letter-spacing: 0.18em; color: #fff;
  margin: 0 0 20px; font-weight: 500;
}
.ft li { margin-bottom: 11px; }
.ft a:hover { color: #fff; }
.ft-bot {
  border-top: 1px solid rgba(255, 255, 255, 0.1); padding-top: 24px;
  display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap;
  font-size: 12.5px; color: rgba(255, 255, 255, 0.38);
}

/* ---------- 内页头部 ---------- */
.page-hd {
  position: relative; padding: calc(var(--hd-h) + 92px) 0 70px;
  background: var(--ink); color: #fff; overflow: hidden;
}
.page-hd img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.4; }
.page-hd::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(100deg, rgba(8, 20, 18, 0.92), rgba(8, 20, 18, 0.55));
}
.page-hd .wrap { position: relative; z-index: 2; }
.page-hd h1 { font-size: clamp(30px, 4.4vw, 52px); letter-spacing: 0.08em; margin-top: 18px; }
.page-hd p { margin-top: 18px; max-width: 42em; color: rgba(255, 255, 255, 0.72); font-weight: 300; }
.crumb { font-size: 12.5px; letter-spacing: 0.12em; color: rgba(255, 255, 255, 0.5); }
.crumb a:hover { color: #fff; }

/* ---------- 关于我们 ---------- */
.about-body { font-size: 15.5px; line-height: 2.05; color: #33423f; font-weight: 300; }
.about-body p + p { margin-top: 18px; }
.info-list { margin-top: 32px; border-top: 1px solid var(--line); }
.info-list div {
  display: flex; gap: 24px; padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 14px;
}
.info-list dt, .info-list span:first-child {
  flex: none; width: 108px; color: var(--muted); letter-spacing: 0.08em;
}
.timeline { margin-top: 20px; position: relative; padding-left: 30px; }
.timeline::before { content: ''; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 1px; background: var(--line-2); }
.tl-item { position: relative; padding-bottom: 34px; }
.tl-item::before {
  content: ''; position: absolute; left: -30px; top: 9px;
  width: 11px; height: 11px; background: var(--paper); border: 1px solid var(--jade); border-radius: 50%;
}
.tl-item b { display: block; font-family: var(--serif); font-size: 17px; letter-spacing: 0.06em; }
.tl-item span { display: block; font-size: 12.5px; letter-spacing: 0.14em; color: var(--gold); margin-bottom: 6px; }
.tl-item p { font-size: 14.5px; color: var(--muted); line-height: 1.9; margin-top: 6px; font-weight: 300; }

.value-card { padding: 36px 32px; border: 1px solid var(--line); background: var(--white); transition: transform 0.4s var(--ease), box-shadow 0.4s; }
.value-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.value-card h4 { font-size: 19px; margin-bottom: 12px; letter-spacing: 0.06em; }
.value-card p { font-size: 14px; line-height: 1.9; color: var(--muted); font-weight: 300; }
.value-card .ico {
  width: 34px; height: 34px; margin-bottom: 22px; color: var(--jade);
}

/* ---------- 产品服务 ---------- */
.prod {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0;
  border-top: 1px solid var(--line); padding: 56px 0;
  align-items: center; gap: 64px;
}
.prod:nth-child(even) .prod-media { order: 2; }
.prod-media { position: relative; overflow: hidden; }
.prod-media img { aspect-ratio: 4 / 3; object-fit: cover; width: 100%; transition: transform 1.4s var(--ease); }
.prod:hover .prod-media img { transform: scale(1.04); }
.prod-no {
  font-family: var(--serif); font-size: 13px; letter-spacing: 0.2em; color: var(--gold);
}
.prod h3 { font-size: clamp(22px, 2.4vw, 30px); margin: 14px 0 0; letter-spacing: 0.06em; }
.prod .lead { margin-top: 16px; font-size: 15.5px; line-height: 2; color: #3d4b48; font-weight: 300; }
.prod ul.pts { margin-top: 22px; display: grid; gap: 10px; }
.prod ul.pts li {
  position: relative; padding-left: 18px; font-size: 14px; color: var(--muted); line-height: 1.85;
}
.prod ul.pts li::before {
  content: ''; position: absolute; left: 0; top: 12px; width: 6px; height: 1px; background: var(--gold);
}
.prod-spec { margin-top: 24px; display: flex; flex-wrap: wrap; gap: 8px; }
.prod-spec span { font-size: 12px; letter-spacing: 0.06em; padding: 5px 10px; background: var(--paper-2); color: var(--jade); }

/* 服务能力 */
.svc { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.svc > div { background: var(--white); padding: 34px 30px 38px; }
.svc h4 { font-size: 17.5px; letter-spacing: 0.05em; }
.svc p { margin-top: 10px; font-size: 13.5px; line-height: 1.9; color: var(--muted); font-weight: 300; }
.svc .n { font-family: var(--serif); font-size: 12px; letter-spacing: 0.2em; color: var(--gold); display: block; margin-bottom: 14px; }

/* ---------- 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 72px; align-items: start; }
.contact-info { border-top: 1px solid var(--line); }
.ci { padding: 24px 0; border-bottom: 1px solid var(--line); display: flex; gap: 18px; }
.ci .k { flex: none; width: 84px; font-size: 13px; letter-spacing: 0.1em; color: var(--muted); padding-top: 2px; }
.ci .v { font-size: 15px; line-height: 1.85; }
.ci .v small { display: block; font-size: 12.5px; color: var(--muted); margin-top: 4px; }

.form-card {
  background: var(--white); border: 1px solid var(--line); padding: 44px 44px 48px;
  box-shadow: 0 30px 70px -50px rgba(14, 29, 27, 0.4);
}
.form-card h3 { font-size: 22px; letter-spacing: 0.06em; }
.form-card > p { margin-top: 10px; font-size: 13.5px; color: var(--muted); }

.field { margin-top: 22px; }
.field label {
  display: block; font-size: 12.5px; letter-spacing: 0.1em; color: var(--muted); margin-bottom: 8px;
}
.field label i { font-style: normal; color: #c0392b; margin-left: 3px; }
.input, .textarea, select.input {
  width: 100%; border: 1px solid var(--line-2); background: #fdfdfb;
  padding: 12px 14px; font-size: 15px; font-family: inherit; color: var(--ink);
  border-radius: 2px; transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
  line-height: 1.6;
}
.textarea { min-height: 126px; resize: vertical; }
.input:focus, .textarea:focus {
  outline: none; border-color: var(--jade); background: #fff;
  box-shadow: 0 0 0 3px rgba(15, 79, 71, 0.08);
}
.row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-note { margin-top: 16px; font-size: 12.5px; color: var(--muted); line-height: 1.8; }
.form-tip { margin-top: 14px; font-size: 13px; color: #b4552b; display: none; }
.form-tip.show { display: block; }

.upload-line { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.upload-line .btn { height: 40px; padding: 0 18px; font-size: 13.5px; }
.file-list { margin-top: 10px; font-size: 13px; color: var(--muted); }
.file-list div { display: flex; justify-content: space-between; gap: 10px; padding: 6px 0; border-bottom: 1px dashed var(--line); }

/* ---------- 登录 / 注册 ---------- */
.auth-wrap {
  min-height: 100vh; display: grid; grid-template-columns: 1.05fr 1fr;
  padding-top: var(--hd-h);
}
.auth-side { position: relative; overflow: hidden; background: var(--ink); color: #fff; display: flex; align-items: flex-end; padding: 64px; }
.auth-side img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: 0.55; }
.auth-side::after { content: ''; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,20,18,0.25), rgba(8,20,18,0.86)); }
.auth-side .as-in { position: relative; z-index: 2; }
.auth-side h2 { font-size: clamp(24px, 2.6vw, 34px); line-height: 1.5; letter-spacing: 0.06em; }
.auth-side p { margin-top: 16px; color: rgba(255, 255, 255, 0.66); font-weight: 300; font-size: 14.5px; max-width: 26em; }
.auth-main { display: flex; align-items: center; justify-content: center; padding: 64px 32px; background: var(--paper); }
.auth-box { width: 100%; max-width: 400px; }
.auth-box h1 { font-size: 30px; letter-spacing: 0.06em; }
.auth-box .sub { margin-top: 10px; font-size: 14px; color: var(--muted); }
.tabs { display: flex; gap: 28px; margin: 34px 0 4px; border-bottom: 1px solid var(--line); }
.tabs button {
  background: none; border: 0; padding: 0 0 12px; font-size: 15px; color: var(--muted);
  position: relative; letter-spacing: 0.06em;
}
.tabs button.on { color: var(--ink); }
.tabs button.on::after { content: ''; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px; background: var(--jade); }
.auth-foot { margin-top: 22px; font-size: 13px; color: var(--muted); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.alert {
  margin-top: 18px; padding: 11px 14px; font-size: 13.5px; border-left: 2px solid #c0392b;
  background: #fdf2f0; color: #a02a1c; display: none;
}
.alert.show { display: block; }
.alert.ok { border-color: var(--jade); background: #f0f7f4; color: var(--jade); }

/* ---------- 用户中心 ---------- */
.dash { padding: calc(var(--hd-h) + 56px) 0 100px; min-height: 100vh; }
.dash-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.dash-head h1 { font-size: clamp(24px, 3vw, 34px); letter-spacing: 0.06em; }
.dash-head p { margin-top: 8px; font-size: 14px; color: var(--muted); }
.dash-tabs { display: flex; gap: 6px; margin: 32px 0 28px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.dash-tabs button {
  background: none; border: 0; padding: 12px 18px; font-size: 14.5px; color: var(--muted);
  border-bottom: 2px solid transparent; margin-bottom: -1px; letter-spacing: 0.05em;
}
.dash-tabs button.on { color: var(--ink); border-bottom-color: var(--jade); }
.panel { display: none; }
.panel.on { display: block; animation: fade 0.4s var(--ease); }
@keyframes fade { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }

.card-box { background: var(--white); border: 1px solid var(--line); padding: 34px 36px 40px; }
.card-box + .card-box { margin-top: 20px; }
.card-box h3 { font-size: 18px; letter-spacing: 0.05em; margin-bottom: 6px; }
.card-box .hint { font-size: 13px; color: var(--muted); }

.table { width: 100%; border-collapse: collapse; font-size: 14px; }
.table th {
  text-align: left; font-weight: 500; font-size: 12.5px; letter-spacing: 0.1em;
  color: var(--muted); padding: 12px 14px; border-bottom: 1px solid var(--line-2); white-space: nowrap;
}
.table td { padding: 16px 14px; border-bottom: 1px solid var(--line); vertical-align: top; line-height: 1.7; }
.table tr:hover td { background: #fbfaf7; }
.tag { display: inline-block; font-size: 11.5px; letter-spacing: 0.08em; padding: 2px 8px; border: 1px solid var(--line-2); color: var(--muted); }
.tag.new { color: var(--gold); border-color: rgba(181, 137, 63, 0.4); }
.tag.done { color: var(--jade); border-color: rgba(15, 79, 71, 0.35); }
.empty { padding: 44px 0; text-align: center; color: var(--muted); font-size: 14px; }
.doc-list { display: grid; gap: 12px; margin-top: 18px; }
.doc {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 16px 18px; border: 1px solid var(--line); background: #fdfdfb;
  transition: border-color 0.25s, background 0.25s;
}
.doc:hover { border-color: var(--line-2); background: #fff; }
.doc b { font-weight: 500; font-size: 14.5px; }
.doc small { display: block; color: var(--muted); font-size: 12px; margin-top: 2px; }
.doc .dl { font-size: 13px; color: var(--jade); white-space: nowrap; }

/* ---------- 提示条 ---------- */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translate(-50%, 20px);
  background: var(--ink); color: #fff; font-size: 14px; padding: 13px 22px;
  border-radius: 2px; opacity: 0; pointer-events: none; transition: all 0.35s var(--ease);
  z-index: 200; box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.5); max-width: 88vw; text-align: center;
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.toast.err { background: #8d2b1c; }

/* ---------- 滚动动效 ---------- */
/* 默认可见（渐进增强）：入场动效只做位移，不改透明度，
   确保任何情况下内容都不会因为 JS 未触发而空白 */
.reveal { opacity: 1; transform: none; }
html.js-anim .reveal { transform: translateY(24px); transition: transform 0.85s var(--ease); }
html.js-anim .reveal.in { transform: none; }
@media (prefers-reduced-motion: reduce) {
  html.js-anim .reveal { opacity: 1; transform: none; transition: none; }
  .hero-media img { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .ft-top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .split { gap: 44px; }
  .contact-grid { gap: 44px; }
  .prod { gap: 40px; }
}

@media (max-width: 900px) {
  :root { --hd-h: 66px; }
  .nav {
    position: fixed; inset: var(--hd-h) 0 auto 0; flex-direction: column; align-items: stretch;
    gap: 0; background: var(--paper); padding: 8px 24px 24px; margin: 0;
    border-bottom: 1px solid var(--line); box-shadow: 0 30px 40px -30px rgba(0, 0, 0, 0.3);
    transform: translateY(-140%); transition: transform 0.42s var(--ease); z-index: -1;
  }
  body.menu-open .nav { transform: none; }
  .nav a { padding: 16px 0; border-bottom: 1px solid var(--line); font-size: 16px; opacity: 1; color: var(--ink); }
  .nav a::after { display: none; }
  .menu-btn { display: block; color: var(--ink); margin-left: auto; }
  .hd.on-dark:not(.solid) .menu-btn { color: #fff; }
  .hd-act { display: none; }
  .hd-act .btn-solid { display: none; }
  .hd-act .btn-ghost { font-size: 14px; }
  .hero-slide { min-height: auto; padding: calc(var(--hd-h) + 66px) 0 92px; }
  .hero-foot { grid-template-columns: 1fr 1fr; gap: 18px; margin-top: 34px; }
  .hero-cta { margin-top: 28px; }
  .hero-sub { margin-top: 20px; }
  .hero-dots-wrap { bottom: 24px; }
  .hero-dots { gap: 20px; }
  .hero-dot { font-size: 12px; }
  .hero-dot i { width: 26px; }
  .sec { padding: 72px 0; }
  .split, .contact-grid, .grid-2, .grid-3, .grid-4, .feats, .svc, .auth-wrap {
    grid-template-columns: 1fr;
  }
  .auth-side { display: none; }
  .prod { grid-template-columns: 1fr; padding: 40px 0; }
  .prod:nth-child(even) .prod-media { order: 0; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { border-bottom: 1px solid var(--line); padding-right: 16px; }
  .stat:nth-child(even) { border-right: 0; }
  .form-card { padding: 30px 24px 34px; }
  .row-2 { grid-template-columns: 1fr; gap: 0; }
  .wrap, .wrap-sm { padding: 0 22px; }
  .hd-in { padding: 0 22px; gap: 16px; }
  .cta { padding: 68px 0; }
  .ft { padding: 56px 0 26px; }
  .ft-top { grid-template-columns: 1fr; }
  .card-box { padding: 24px 20px 28px; }
  .table { display: block; overflow-x: auto; white-space: nowrap; }
  .page-hd { padding: calc(var(--hd-h) + 60px) 0 48px; }
  .dash { padding: calc(var(--hd-h) + 34px) 0 70px; }
}

@media (max-width: 560px) {
  .hero h1 { font-size: 32px; }
  .hero-eyebrow { font-size: 11px; letter-spacing: 0.16em; }
  .hero-cta { width: 100%; gap: 10px; }
  .hero-cta .btn { flex: 1 1 0; min-width: 0; padding: 0 12px; justify-content: center; }
  .brand-txt b { font-size: 17px; }
  .brand-txt i { font-size: 8px; letter-spacing: 0.16em; }
  .sec-head-row { gap: 20px; }
}

/* ==========================================================================
   门户扩展组件（内页 / 产品 / 内容 / 咨询）
   ========================================================================== */

/* ---------- 通用 ---------- */
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 30px; }
.sec-gap { margin-top: 88px; }
.h2-lead { font-family: var(--serif); font-size: clamp(26px, 3vw, 38px); line-height: 1.45; margin-top: 18px; font-weight: 600; }
.about-body { margin-top: 22px; color: var(--muted); }
.about-body p + p { margin-top: 14px; }
.btn-on-dark { border-color: rgba(255,255,255,.34) !important; color: #fff !important; }
.btn-on-dark:hover { background: rgba(255,255,255,.1) !important; }
.empty-tip {
  padding: 48px 24px; text-align: center; color: var(--muted);
  border: 1px dashed var(--line-2); border-radius: 12px; background: rgba(255,255,255,.5);
}

/* ---------- 内页头 ---------- */
.phero {
  position: relative; overflow: hidden; color: #fff;
  padding: calc(var(--hd-h) + 62px) 0 62px;
  background: linear-gradient(135deg, #0a1e1b 0%, #12332e 55%, #17403a 100%);
}
.phero::after {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(620px 300px at 82% 0%, rgba(181,137,63,.2), transparent 70%);
  pointer-events: none;
}
.phero .wrap { position: relative; z-index: 1; }
.phero h1 {
  font-family: var(--serif); font-weight: 600;
  font-size: clamp(28px, 3.6vw, 44px); line-height: 1.3; margin: 16px 0 0;
}
.phero p { color: rgba(255,255,255,.72); max-width: 760px; margin-top: 14px; font-size: 15.5px; }
.phero-crumb { font-size: 12.5px; letter-spacing: .05em; color: rgba(255,255,255,.5); }
.phero-crumb a { color: rgba(255,255,255,.62); }
.phero-crumb a:hover { color: #fff; }
.phero-crumb i { margin: 0 8px; font-style: normal; opacity: .45; }

/* ---------- 产品卡片 ---------- */
.pcard {
  display: flex; flex-direction: column; background: var(--white);
  border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease), border-color .45s var(--ease);
}
.pcard:hover { transform: translateY(-4px); box-shadow: var(--shadow); border-color: transparent; }
.pcard-img { aspect-ratio: 16 / 10; overflow: hidden; background: var(--paper-2); }
.pcard-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.pcard:hover .pcard-img img { transform: scale(1.05); }
.pcard-body { padding: 22px 22px 26px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.pcard-cat {
  display: inline-block; font-size: 11px; letter-spacing: .12em; color: var(--gold);
  text-transform: uppercase;
}
.pcard-body h3 { font-size: 19px; font-weight: 600; font-family: var(--serif); }
.pcard-body p { font-size: 13.8px; color: var(--muted); line-height: 1.7; flex: 1; }

/* ---------- 内容卡片 ---------- */
.ncard {
  display: flex; flex-direction: column; background: var(--white);
  border: 1px solid var(--line); border-radius: 14px; overflow: hidden;
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.ncard:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.ncard-img { aspect-ratio: 16 / 10; overflow: hidden; background: var(--paper-2); }
.ncard-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.ncard:hover .ncard-img img { transform: scale(1.05); }
.ncard-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.ncard-meta { display: flex; align-items: center; gap: 12px; font-size: 12px; color: var(--muted); }
.ncard-tag {
  display: inline-block; padding: 2px 9px; border-radius: 999px;
  background: rgba(15,79,71,.08); color: var(--jade); font-size: 11.5px; letter-spacing: .04em;
}
.ncard-body h3 {
  font-size: 17px; line-height: 1.5; font-weight: 600;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.ncard-body p {
  font-size: 13.5px; color: var(--muted); line-height: 1.7; flex: 1;
  display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.ncard-more { font-size: 13px; color: var(--jade); letter-spacing: .02em; }

/* ---------- 应用领域 ---------- */
.app-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 2px; margin-top: 42px; background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
.app-item { background: var(--white); padding: 30px 26px; transition: background .4s var(--ease); }
.app-item:hover { background: var(--paper-2); }
.app-item h4 { font-size: 16.5px; font-family: var(--serif); margin-bottom: 8px; }
.app-item p { font-size: 13px; color: var(--muted); line-height: 1.7; }

.app-list { display: flex; flex-direction: column; gap: 2px; background: var(--line); border-radius: 14px; overflow: hidden; }
.app-row {
  display: grid; grid-template-columns: 64px minmax(0,1.4fr) minmax(0,1fr) 80px;
  gap: 24px; align-items: center; background: var(--white); padding: 26px 28px;
  transition: background .35s var(--ease);
}
.app-row:hover { background: #fbfcfa; }
.app-row-no { font-family: var(--serif); font-size: 24px; color: var(--gold); opacity: .8; }
.app-row-main h3 { font-size: 18px; font-family: var(--serif); margin-bottom: 6px; }
.app-row-main p { font-size: 13.5px; color: var(--muted); line-height: 1.7; }
.app-row-mat { display: flex; flex-wrap: wrap; gap: 8px; }
.app-row-mat span {
  font-size: 12px; padding: 4px 11px; border-radius: 999px;
  border: 1px solid var(--line-2); color: var(--ink-2); background: #fff;
}
.app-row-link { font-size: 13.5px; color: var(--jade); text-align: right; }

/* ---------- 产品分类区块 ---------- */
.cat-nav {
  display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 56px;
  padding-bottom: 24px; border-bottom: 1px solid var(--line);
}
.cat-nav a {
  padding: 9px 20px; border-radius: 999px; border: 1px solid var(--line-2);
  font-size: 14px; transition: all .3s var(--ease);
}
.cat-nav a:hover { background: var(--jade); color: #fff; border-color: var(--jade); }
.cat-block { margin-bottom: 76px; scroll-margin-top: calc(var(--hd-h) + 24px); }
.cat-block:last-child { margin-bottom: 0; }
.cat-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 34px; }
.cat-head h2 { font-family: var(--serif); font-size: clamp(24px, 2.6vw, 32px); margin: 12px 0 10px; }
.cat-head p { color: var(--muted); max-width: 640px; font-size: 14.5px; }
.cat-count { font-size: 13px; color: var(--muted); white-space: nowrap; }

/* ---------- 产品详情 ---------- */
.detail { display: grid; grid-template-columns: minmax(0,1.05fr) minmax(0,1fr); gap: 58px; align-items: start; }
.detail-media { border-radius: 16px; overflow: hidden; background: var(--paper-2); }
.detail-media img { width: 100%; height: 100%; object-fit: cover; }
.detail-info h2 { font-family: var(--serif); font-size: clamp(26px, 3vw, 36px); margin: 12px 0 6px; }
.detail-en { font-size: 12.5px; letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }
.detail-summary { margin-top: 20px; color: var(--ink-2); line-height: 1.85; font-size: 15.5px; }
.detail-info .biz-tags { margin-top: 22px; }

.spec-table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: 12px; overflow: hidden; border: 1px solid var(--line); }
.spec-table tr { border-bottom: 1px solid var(--line); }
.spec-table tr:last-child { border-bottom: none; }
.spec-table th {
  width: 190px; text-align: left; padding: 15px 22px; font-weight: 500;
  color: var(--muted); background: var(--paper-2); font-size: 13.5px;
}
.spec-table td { padding: 15px 22px; font-size: 14.5px; }

.feat-list { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; list-style: none; margin-top: 30px; }
.feat-list li {
  position: relative; padding: 18px 20px 18px 46px; background: var(--white);
  border: 1px solid var(--line); border-radius: 10px; font-size: 14.5px;
}
.feat-list.cols-3 { grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); }
.feat-list li::before {
  content: '✓'; position: absolute; left: 18px; top: 17px;
  color: var(--jade); font-weight: 700;
}

/* ---------- 产品详情：结构层次 / 使用步骤 / 注意事项 ---------- */
.sec-lead { margin-top: 14px; color: var(--muted); font-size: 15px; line-height: 1.8; max-width: 640px; }

.layer-list { margin-top: 32px; border-top: 1px solid var(--line); }
.layer { display: flex; gap: 22px; align-items: flex-start; padding: 22px 4px; border-bottom: 1px solid var(--line); }
.layer-no { flex: 0 0 auto; font-family: var(--serif); font-size: 21px; color: var(--jade); opacity: .5; line-height: 1.25; }
.layer-main h4 { margin: 0 0 6px; font-size: 16px; font-weight: 600; }
.layer-main p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.78; }

.step-list { margin: 30px 0 0; padding: 0; counter-reset: st; display: grid; gap: 13px; list-style: none; }
.step-list li {
  counter-increment: st; position: relative; padding: 17px 22px 17px 64px;
  background: var(--white); border: 1px solid var(--line); border-radius: 10px;
  font-size: 14.5px; line-height: 1.72;
}
.step-list li::before {
  content: counter(st, decimal-leading-zero); position: absolute; left: 20px; top: 15px;
  font-family: var(--serif); font-size: 17px; color: var(--jade); opacity: .75;
}

.note-list { margin: 26px 0 0; padding: 0; display: grid; gap: 10px; list-style: none; }
.note-list li {
  position: relative; padding: 14px 18px 14px 44px; font-size: 14px; line-height: 1.72;
  background: #fbf7ec; border: 1px solid #ece1c6; border-radius: 9px; color: #6b5a2e;
}
.note-list li::before {
  content: '!'; position: absolute; left: 16px; top: 14px; width: 16px; height: 16px;
  border-radius: 50%; background: #c9a227; color: #fff; font-size: 11px; font-weight: 700;
  text-align: center; line-height: 16px;
}

/* ---------- 关于页 ---------- */
.vcard {
  background: var(--white); border: 1px solid var(--line); border-radius: 14px;
  padding: 34px 30px; display: flex; flex-direction: column; gap: 12px;
}
.vcard-no { font-family: var(--serif); font-size: 15px; color: var(--gold); letter-spacing: .1em; }
.vcard h3 { font-size: 19px; font-family: var(--serif); font-weight: 600; }
.vcard p { font-size: 14px; color: var(--muted); line-height: 1.8; }

.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 36px; }
.cert {
  border: 1px solid var(--line); border-radius: 12px; overflow: hidden;
  background: var(--white); text-align: center;
}
.cert-ph {
  aspect-ratio: 4 / 3; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 16px;
  background: linear-gradient(160deg, #fcfbf8 0%, #f2efe7 100%);
  color: var(--jade); font-size: 15px; font-family: var(--serif); letter-spacing: .06em; padding: 20px;
}
.cert-ph::before {
  content: ''; width: 42px; height: 52px; border: 1.4px solid currentColor; border-radius: 4px; opacity: .4;
  background:
    linear-gradient(currentColor, currentColor) 9px 13px / 22px 1.4px no-repeat,
    linear-gradient(currentColor, currentColor) 9px 21px / 22px 1.4px no-repeat,
    linear-gradient(currentColor, currentColor) 9px 29px / 13px 1.4px no-repeat;
}
.cert p { padding: 12px 14px; font-size: 12.5px; color: var(--muted); border-top: 1px solid var(--line); }

.timeline { list-style: none; margin-top: 40px; position: relative; padding-left: 28px; }
.timeline::before {
  content: ''; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 1px; background: var(--line-2);
}
.timeline li { position: relative; padding: 0 0 34px 24px; display: grid; grid-template-columns: 110px 1fr; gap: 20px; }
.timeline li:last-child { padding-bottom: 0; }
.timeline li::before {
  content: ''; position: absolute; left: -28px; top: 9px; width: 11px; height: 11px;
  border-radius: 50%; background: var(--white); border: 2px solid var(--jade);
}
.timeline time { font-family: var(--serif); font-size: 15px; color: var(--jade); letter-spacing: .04em; }
.timeline h4 { font-size: 17px; margin-bottom: 6px; }
.timeline p { font-size: 14px; color: var(--muted); line-height: 1.8; }

/* ---------- 文章 ---------- */
.article { max-width: 820px; }
.article-meta { display: flex; align-items: center; gap: 14px; font-size: 13px; color: var(--muted); margin-bottom: 26px; }
.article-cover { border-radius: 14px; overflow: hidden; margin-bottom: 34px; background: var(--paper-2); }
.article-cover img { width: 100%; max-height: 460px; object-fit: cover; }
.article-body { font-size: 16.5px; line-height: 2; color: var(--ink-2); }
.article-body p { margin-bottom: 20px; }
.article-foot { display: flex; gap: 14px; flex-wrap: wrap; justify-content: space-between; margin-top: 46px; padding-top: 28px; border-top: 1px solid var(--line); }

/* ---------- 联系我们 ---------- */
.contact-wrap { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.15fr); gap: 64px; align-items: start; }
.cinfo { list-style: none; margin-top: 34px; display: flex; flex-direction: column; gap: 20px; }
.cinfo li { display: grid; grid-template-columns: 84px 1fr; gap: 16px; font-size: 14.5px; align-items: baseline; }
.cinfo b { font-weight: 500; color: var(--muted); font-size: 13px; }
.cinfo a { color: var(--jade); border-bottom: 1px solid rgba(15,79,71,.25); }
.contact-tip {
  margin-top: 34px; padding: 16px 20px; border-radius: 10px;
  background: rgba(15,79,71,.05); border-left: 3px solid var(--jade);
  font-size: 13.5px; color: var(--muted); line-height: 1.8;
}
.contact-form {
  background: var(--white); border: 1px solid var(--line); border-radius: 16px;
  padding: 36px 34px; display: flex; flex-direction: column; gap: 18px;
}
.cf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.contact-form label { display: flex; flex-direction: column; gap: 7px; font-size: 13px; color: var(--muted); }
.contact-form .cf-lb { display: block; line-height: 1.5; }
.contact-form label i { color: #c0392b; font-style: normal; }
.contact-form input, .contact-form select, .contact-form textarea {
  font-family: inherit; font-size: 14.5px; color: var(--ink);
  padding: 11px 14px; border: 1px solid var(--line-2); border-radius: 8px;
  background: #fbfcfa; transition: border-color .25s var(--ease), background .25s var(--ease);
}
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none; border-color: var(--jade); background: #fff;
}
.contact-form textarea { resize: vertical; line-height: 1.8; }
.contact-form button { align-self: flex-start; }
.cf-hint { font-size: 13px; min-height: 20px; color: #c0392b; line-height: 1.7; }
.cf-hint.ok { color: var(--jade); font-weight: 600; }

/* ---------- 在线咨询 ---------- */
.consult { position: fixed; right: 24px; bottom: 26px; z-index: 60; }
.consult-fab {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  height: 54px; padding: 0 20px; border-radius: 999px; border: none;
  background: var(--jade); color: #fff; font-size: 14.5px; letter-spacing: .04em;
  box-shadow: 0 14px 34px -12px rgba(15,79,71,.6);
  transition: transform .35s var(--ease), background .35s var(--ease);
}
.consult-fab:hover { transform: translateY(-2px); background: var(--jade-2); }
.consult-fab-ico {
  display: flex; align-items: center; justify-content: center;
  font-size: 17px; line-height: 1;
}
.consult-fab-ico svg { display: block; width: 17px; height: 17px; }

.consult-panel {
  position: absolute; right: 0; bottom: 68px; width: 288px;
  background: var(--white); border-radius: 16px; overflow: hidden;
  box-shadow: 0 26px 60px -20px rgba(14,29,27,.4);
  border: 1px solid var(--line);
  animation: consultIn .28s var(--ease);
}
@keyframes consultIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.consult-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 15px 18px; background: var(--jade); color: #fff;
}
.consult-head b { font-size: 14.5px; font-weight: 600; letter-spacing: .04em; }
.consult-x { background: none; border: none; color: rgba(255,255,255,.8); font-size: 20px; line-height: 1; padding: 0 2px; }
.consult-x:hover { color: #fff; }
.consult-body { padding: 16px 16px 18px; display: flex; flex-direction: column; gap: 10px; }
.consult-qr { width: 148px; height: 148px; margin: 4px auto 0; border-radius: 8px; object-fit: contain; background: #f4f5f3; }
.consult-tip { font-size: 12.5px; color: var(--muted); text-align: center; line-height: 1.6; }
.consult-row {
  display: flex; align-items: center; gap: 12px; padding: 11px 12px;
  border-radius: 10px; border: 1px solid var(--line); transition: background .3s var(--ease), border-color .3s var(--ease);
}
.consult-row:hover { background: var(--paper-2); border-color: transparent; }
.consult-ico { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; background: rgba(15,79,71,.08); color: var(--jade); font-size: 14px; }
.consult-row span { display: flex; flex-direction: column; }
.consult-row b { font-size: 13.5px; font-weight: 600; }
.consult-row i { font-style: normal; font-size: 12px; color: var(--muted); }

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .app-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .detail { grid-template-columns: 1fr; gap: 34px; }
  .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .app-row { grid-template-columns: 48px 1fr; gap: 14px 18px; }
  .app-row-mat { grid-column: 2; }
  .app-row-link { grid-column: 2; text-align: left; }
}

@media (max-width: 760px) {
  .phero { padding: calc(var(--hd-h) + 42px) 0 44px; }
  .app-grid { grid-template-columns: 1fr; }
  .cf-row { grid-template-columns: 1fr; }
  .contact-form { padding: 26px 22px; }
  .timeline li { grid-template-columns: 1fr; gap: 6px; }
  .spec-table th { width: 120px; padding: 12px 14px; font-size: 12.5px; }
  .spec-table td { padding: 12px 14px; font-size: 13.5px; }
  .consult { right: 16px; bottom: calc(18px + env(safe-area-inset-bottom, 0px)); }
  .consult-fab { width: 52px; height: 52px; padding: 0; gap: 0; border-radius: 50%; font-size: 0; }
  .consult-fab-txt { display: none; }
  .consult-fab-ico { font-size: 20px; }
  .consult-fab-ico svg { width: 21px; height: 21px; }
  .consult-panel { width: min(288px, calc(100vw - 28px)); }
  .cat-head { flex-direction: column; align-items: flex-start; gap: 10px; }
  .layer { gap: 14px; padding: 18px 2px; }
  .layer-no { font-size: 18px; }
  .step-list li { padding: 15px 16px 15px 54px; font-size: 13.8px; }
  .step-list li::before { left: 16px; font-size: 15px; }
  .note-list li { padding: 12px 14px 12px 40px; font-size: 13.5px; }
}