/* ============================================================
   兰竹机械官网 · 设计系统
   深色科技风 / 简约大气：细线、方块、数字、克制用色
   ============================================================ */

/* ---------- 0. 自托管字体：MiSans（小米，免费可商用）----------
   按「站点实际用字」分片（slice_fonts.py 自动生成并写入本节）：
   首访只下载第 1 片，其余分片浏览器按需自动补下，不回退系统字体 */
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U+8010, U+8033, U+804A, U+8054, U+80FD, U+811A, U+8131, U+8150, U+8154, U+81EA, U+81F3-81F4, U+822A, U+8272, U+827A, U+8282, U+82B1, U+82CF, U+82E5, U+82F1, U+8303, U+8350, U+8377, U+83B7, U+83F2, U+8425, U+843D, U+8499, U+85CF, U+8680, U+871C, U+87BA, U+884C, U+8865, U+8868, U+88AB, U+88C5, U+897F, U+8981, U+8986, U+89C1-89C2, U+89C4, U+89C6, U+89C8, U+89D2, U+89E3, U+8BA1-8BA2, U+8BA4, U+8BA9, U+8BAE, U+8BB0, U+8BB8, U+8BBA, U+8BBE, U+8BC1, U+8BC4, U+8BC6, U+8BC9, U+8BD5, U+8BDA, U+8BDD, U+8BE2, U+8BE5, U+8BEF, U+8BF4, U+8BF7, U+8BFB, U+8BFF, U+8C03, U+8D1F, U+8D23, U+8D25, U+8D27-8D28, U+8D2D, U+8D34-8D35, U+8D39, U+8D44, U+8D56, U+8D70, U+8D77, U+8D85, U+8D8A, U+8DDD, U+8DEF, U+8DF3, U+8EAB, U+8F66, U+8F68, U+8F6C, U+8F6E, U+8F74, U+8F7B, U+8F7D, U+8F83, U+8F85, U+8F91, U+8F93, U+8F96, U+8FB9, U+8FBE, U+8FC1, U+8FC7, U+8FCE, U+8FD0-8FD1, U+8FD4, U+8FD9, U+8FDB, U+8FDE, U+8FF0, U+9001-9002, U+9009, U+900F-9010, U+901A, U+901F-9020, U+903B, U+9053, U+907F, U+90AE, U+90E8, U+90FD, U+914B, U+914D, U+91C7, U+91CC-91CD, U+91CF, U+91D1, U+949D, U+94A2, U+94A5, U+94AE, U+94B1, U+94BB, U+94DC-94DD, U+94E3, U+94F0, U+94FE, U+9501, U+9508, U+950C, U+9519, U+9526, U+952E, U+9540, U+957F, U+95ED-95EE, U+95F4, U+961F, U+9632-9633, U+9636, U+963F, U+9645, U+964D, U+9650, U+9664, U+968F-9690, U+9694, U+96C6, U+96F6, U+9700, U+9732, U+9759, U+975E, U+9760, U+9762, U+97E9, U+9875-9876, U+9879-987A, U+9884, U+9891, U+9898, U+98DE, U+9988, U+9996, U+9A6C, U+9A7B, U+9A8C, U+9AD8, U+9C7C, U+9EC4, U+9ED1, U+9ED8, U+9F50, U+9F99, U+FF01, U+FF05, U+FF08-FF09, U+FF0B-FF0D, U+FF1A-FF1B, U+FF1D, U+FF1F, U+FF5E; }
@font-face { font-family: "MiSans"; src: url("assets/fonts/misans-demibold-s2.woff2") format("woff2"); font-weight: 500 700; font-style: normal; font-display: swap; unicode-range: U+0060-592E; }
@font-face { font-family: "MiSans"; src: url("assets/fonts/misans-demibold-s3.woff2") format("woff2"); font-weight: 500 700; font-style: normal; font-display: swap; unicode-range: U+592F-6CF1; }
@font-face { font-family: "MiSans"; src: url("assets/fonts/misans-demibold-s4.woff2") format("woff2"); font-weight: 500 700; font-style: normal; font-display: swap; unicode-range: U+6CF3-817C; }
@font-face { font-family: "MiSans"; src: url("assets/fonts/misans-demibold-s5.woff2") format("woff2"); font-weight: 500 700; font-style: normal; font-display: swap; unicode-range: U+817D-9644; }
@font-face { font-family: "MiSans"; src: url("assets/fonts/misans-demibold-s6.woff2") format("woff2"); font-weight: 500 700; font-style: normal; font-display: swap; unicode-range: U+9646-FFE5; }

/* ---------- 1. 设计令牌 ---------- */
:root {
  --bg-0: #060b15;
  --bg-1: #0a1222;
  --panel: #101a30;
  --line: rgba(148, 163, 184, .13);
  --line-strong: rgba(148, 163, 184, .24);

  --text: #eaf1f9;
  --muted: #96a7bd;
  --faint: #677891;

  --brand: #3fb6f5;
  --brand-2: #1e8fd6;
  --brand-soft: rgba(63, 182, 245, .10);

  --cta: #f97316;
  --cta-hover: #fb7f22;

  --ok: #34d399;

  --radius: 10px;
  --radius-sm: 8px;
  --shadow: 0 20px 50px rgba(2, 6, 18, .4);
  --shadow-sm: 0 8px 24px rgba(2, 6, 18, .3);

  --container: min(1320px, 88%);
  --header-h: 76px;

  --font: "MiSans", "PingFang SC", "Hiragino Sans GB", "HarmonyOS Sans SC", "Microsoft YaHei", "Noto Sans SC", system-ui, -apple-system, sans-serif;
  --font-num: "Bahnschrift", "DIN Alternate", "Franklin Gothic Medium", "Arial Narrow", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 20px); }

body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  line-height: 1.75;
  background:
    radial-gradient(1100px 500px at 85% -80px, rgba(30, 143, 214, .08), transparent 60%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 100%);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { margin: 0; }
::selection { background: rgba(63, 182, 245, .35); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: #22314d; border-radius: 8px; }
::-webkit-scrollbar-track { background: var(--bg-0); }

:focus-visible { outline: 2px solid var(--brand); outline-offset: 2px; border-radius: 2px; }

/* ---------- 3. 布局 ---------- */
.container { width: var(--container); margin: 0 auto; }
.section { padding: 96px 0; }
.section-sm { padding: 72px 0; }
.section-alt { background: linear-gradient(180deg, rgba(16, 26, 48, .5), rgba(13, 22, 40, .3)); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 26px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split img { border-radius: 12px; box-shadow: var(--shadow); border: 1px solid var(--line); }

/* ---------- 4. 排版组件 ---------- */
.kicker {
  display: inline-flex; align-items: center; gap: 12px;
  color: var(--brand); font-size: 0.96875rem; font-weight: 600;
  letter-spacing: .16em; margin-bottom: 16px;
}
.kicker::before { content: ""; width: 4px; height: 15px; background: var(--brand); flex: none; }
.kicker-en {
  font-family: var(--font-num); font-size: 0.6875rem; font-weight: 500;
  letter-spacing: .24em; text-transform: uppercase; color: var(--faint);
  transform: translateY(1px); white-space: nowrap;
}

.section-title { font-size: clamp(1.85rem, 3.2vw, 2.5rem); line-height: 1.25; margin: 0 0 16px; font-weight: 800; letter-spacing: .02em; }
.section-desc { font-size: 1.03125rem; color: var(--muted); max-width: 720px; margin: 0; }
.muted { color: var(--muted); }
.text-accent { color: var(--brand); }

.badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 14px; border-radius: 4px;
  border: 1px solid var(--line-strong); background: rgba(63, 182, 245, .06);
  color: #a8d8f8; font-size: 0.8125rem; font-weight: 500; letter-spacing: .08em;
}
.badge::before { content: ""; width: 6px; height: 6px; background: var(--brand); }

/* Hero 工艺标签列：细分隔线形式（大厂规格条风格），无框无底色 */
.hero-tags { display: flex; flex-wrap: wrap; align-items: center; row-gap: 8px; margin-bottom: 26px; font-size: 0.9375rem; font-weight: 500; letter-spacing: .1em; color: var(--brand); }
.hero-tags span { position: relative; padding-left: 20px; }
.hero-tags span:first-child { padding-left: 0; }
.hero-tags span + span::before { content: ""; position: absolute; left: 10px; top: 50%; transform: translateY(-50%); width: 1px; height: .9em; background: rgba(63, 182, 245, .35); }

/* ---------- 5. 按钮 ---------- */
.btns { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 32px; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 15px 28px; border-radius: 6px; border: 1px solid transparent;
  font-family: inherit; font-size: 0.96875rem; font-weight: 700; letter-spacing: .04em;
  cursor: pointer; transition: transform .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; flex: none; }
.btn-primary { background: var(--cta); color: #fff; box-shadow: 0 8px 22px rgba(249, 115, 22, .22); }
.btn-primary:hover { background: var(--cta-hover); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(249, 115, 22, .3); }
.btn-ghost { border-color: var(--line-strong); background: transparent; color: var(--text); }
.btn-ghost:hover { transform: translateY(-2px); border-color: rgba(63, 182, 245, .55); color: #fff; background: rgba(63, 182, 245, .06); }
.btn-block { width: 100%; }
.btn[disabled] { opacity: .65; cursor: not-allowed; transform: none !important; }

/* ---------- 6. 顶部信息条 ---------- */
.topbar { background: #05090f; border-bottom: 1px solid var(--line); font-size: 0.8125rem; position: relative; z-index: 1001; }
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 40px; padding: 6px 0; flex-wrap: wrap; }
.topbar-left, .topbar-right { display: flex; align-items: center; gap: 22px; flex-wrap: wrap; }
.topbar-item { display: inline-flex; align-items: center; gap: 7px; color: var(--muted); }
.topbar-item svg { width: 14px; height: 14px; color: var(--brand); flex: none; }
.topbar-item a { color: #d7e6f5; font-weight: 700; font-family: var(--font-num); letter-spacing: .04em; }
.topbar-item a:hover { color: var(--brand); }
.topbar-promise { display: inline-flex; align-items: center; gap: 7px; color: #ffb77a; font-weight: 600; }
.topbar-promise svg { width: 14px; height: 14px; }

/* ---------- 7. 导航 ---------- */
/* 毛玻璃背景放在 ::before 伪元素上：backdrop-filter 若直接挂在 header 上，
   会成为内部 position:fixed 元素（手机抽屉菜单 .nav）的定位参照，
   导致抽屉相对顶栏而非全屏定位、点开看不到内容（2026-08-24 修复） */
.site-header {
  position: sticky; top: 0; z-index: 1000;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.site-header::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: rgba(6, 11, 21, .78);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  transition: background .25s ease;
}
.site-header.scrolled { border-bottom-color: var(--line); box-shadow: 0 10px 30px rgba(2, 6, 18, .4); }
.site-header.scrolled::before { background: rgba(6, 11, 21, .92); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); gap: 20px; }
.logo-link { display: flex; align-items: center; flex: none; }
.logo-link img { height: 40px; width: auto; }
.nav { display: flex; align-items: center; gap: 6px; }
.nav a { position: relative; padding: 10px 14px; color: #c9d7e8; font-weight: 600; font-size: 0.9375rem; transition: color .2s ease; }
.nav a::after { content: ""; position: absolute; left: 14px; right: 14px; bottom: 4px; height: 2px; background: var(--brand); transform: scaleX(0); transform-origin: left; transition: transform .25s ease; }
.nav a:hover { color: #fff; }
.nav a:hover::after { transform: scaleX(.6); }
.nav a.active { color: var(--brand); }
.nav a.active::after { transform: scaleX(1); }

/* ---------- 8. 首页 Hero ---------- */
.hero { position: relative; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(700px 420px at 12% 8%, rgba(63, 182, 245, .10), transparent 60%),
    radial-gradient(560px 380px at 88% 18%, rgba(249, 115, 22, .06), transparent 55%);
}
.hero-grid-bg {
  position: absolute; inset: 0; opacity: .55;
  background-image:
    linear-gradient(rgba(148, 163, 184, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 163, 184, .05) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 20%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 20%, #000 30%, transparent 75%);
}
.hero-inner {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: stretch;
  padding: 76px 0 88px;
}
/* 左栏拉满至与图片同高：工艺标签顶对齐图片上缘、数据框底对齐图片下缘，
   中间余量由 space-between 均分。flex 内相邻 margin 不折叠，故 h1 上 margin 归零 */
.hero-copy { display: flex; flex-direction: column; justify-content: space-between; }
.hero-copy h1 { font-size: clamp(2.4rem, 4.6vw, 4rem); line-height: 1.16; margin: 0 0 22px; font-weight: 800; letter-spacing: .02em; }
.hero-copy > p { font-size: 1.0625rem; color: #c4d2e4; max-width: 620px; margin: 0; }
.hero-copy > p strong { color: #ffb77a; font-weight: 700; }

.hero-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 52px; }
.hero-stats .stat-card { padding: 20px 16px; }
.hero-stats .stat-num { font-size: 1.875rem; }
.hero-copy .btns { margin-top: 34px; }
.stat-card { padding: 18px 16px; border: 1px solid var(--line); border-radius: var(--radius-sm); background: rgba(13, 22, 40, .5); transition: border-color .25s ease, transform .25s ease; }
.stat-card:hover { border-color: rgba(63, 182, 245, .4); transform: translateY(-3px); }
.stat-num { font-family: var(--font-num); font-size: 1.6875rem; font-weight: 700; color: #fff; line-height: 1.2; letter-spacing: .02em; font-variant-numeric: tabular-nums; }
.stat-label { color: var(--muted); font-size: 0.8125rem; margin-top: 5px; letter-spacing: .02em; }

.hero-media { position: relative; }
/* 图片比例一律用 aspect-ratio 锁死（替代固定高度）：不同屏幕只变边距与排布，
   画面宽高比恒定不变。各档比例 = 该布局下原本就在显示的比例，观感不变 */
.hero-media > img { width: 100%; aspect-ratio: 15 / 14; object-fit: cover; border-radius: 12px; border: 1px solid var(--line-strong); box-shadow: var(--shadow); }

/* ---------- 9. 信任条（服务行业走马灯） ---------- */
.trustbar { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(10, 18, 34, .55); padding: 22px 0; overflow: hidden; }
.trustbar-label { text-align: center; color: var(--faint); font-size: 0.78125rem; letter-spacing: .14em; margin-bottom: 16px; }
.marquee { display: flex; overflow: hidden; -webkit-mask-image: linear-gradient(90deg, transparent, #000 16%, #000 84%, transparent); mask-image: linear-gradient(90deg, transparent, #000 16%, #000 84%, transparent); }
.marquee-track { display: flex; flex: none; gap: 16px; padding-right: 16px; animation: marquee 55s linear infinite; will-change: transform; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-100%); } }
.trust-item {
  display: inline-flex; align-items: center; gap: 10px; flex: none;
  padding: 9px 18px; border: 1px solid var(--line); border-radius: 4px;
  color: #b8c8dc; font-size: 0.875rem; font-weight: 500; letter-spacing: .05em;
}
.trust-item::before { content: ""; width: 5px; height: 5px; background: var(--brand); flex: none; }

/* ---------- 10. 卡片 / 面板 ---------- */
.card {
  position: relative; background: rgba(255, 255, 255, .025);
  border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(63, 182, 245, .35); box-shadow: var(--shadow-sm); }
.card h3 { margin: 0 0 12px; font-size: 1.21875rem; letter-spacing: .02em; }
.card p { margin: 0; color: var(--muted); font-size: 0.9375rem; }
.card .list { margin-top: 16px; }

.card-index {
  display: flex; align-items: center; gap: 10px; margin-bottom: 20px;
  font-family: var(--font-num); font-size: 0.875rem; font-weight: 600;
  color: var(--brand); letter-spacing: .14em;
}
.card-index::after { content: ""; height: 1px; width: 26px; background: rgba(63, 182, 245, .35); }

.icon-box {
  width: 46px; height: 46px; border-radius: 8px; display: grid; place-items: center;
  background: rgba(63, 182, 245, .06);
  border: 1px solid rgba(63, 182, 245, .2); flex: none;
}
.icon-box svg { width: 22px; height: 22px; color: var(--brand); }

.panel { background: rgba(255, 255, 255, .025); border: 1px solid var(--line); border-radius: 14px; padding: 40px; }
.panel h3.panel-title { margin: 0 0 14px; font-size: 1.5rem; letter-spacing: .02em; }

.list { padding: 0; list-style: none; display: grid; gap: 13px; }
.list li { position: relative; padding-left: 22px; color: #cfdbec; font-size: 0.9375rem; }
.list li::before { content: ""; position: absolute; left: 0; top: 10px; width: 7px; height: 7px; background: var(--brand); }

.note { padding: 16px 18px; border-radius: 8px; background: var(--brand-soft); border: 1px solid rgba(63, 182, 245, .18); border-left: 3px solid var(--brand); color: #bfe4fb; font-size: 0.875rem; }

/* ---------- 11. 快速询价 ---------- */
.qq-panel {
  position: relative; border-radius: 14px; padding: 44px;
  background: linear-gradient(150deg, #101c36 0%, #0c1526 60%, #0a1220 100%);
  border: 1px solid var(--line-strong); box-shadow: var(--shadow); overflow: hidden;
}
.qq-panel::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: linear-gradient(90deg, var(--cta), transparent 55%); }
.qq-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 44px; align-items: center; position: relative; }
.qq-copy h2 { margin: 0 0 12px; font-size: clamp(1.55rem, 2.6vw, 2rem); letter-spacing: .02em; }
.qq-copy p { margin: 0 0 20px; color: var(--muted); }
.qq-points { display: grid; gap: 12px; }
.qq-points span { display: inline-flex; align-items: center; gap: 10px; color: #cfdbec; font-size: 0.90625rem; }
.qq-points svg { width: 16px; height: 16px; color: var(--ok); flex: none; }

/* ---------- 12. 表单 ---------- */
.form-group { display: grid; gap: 8px; }
label { font-weight: 600; font-size: 0.875rem; color: #d5e1f0; }
label .req { color: var(--cta); margin-left: 3px; }
input, select, textarea {
  width: 100%; padding: 13px 15px; border-radius: 6px;
  border: 1px solid var(--line-strong); background: rgba(6, 11, 21, .5);
  color: var(--text); font-family: inherit; font-size: 0.9375rem; outline: none;
  transition: border-color .2s ease, box-shadow .2s ease;
}
select { appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2396a7bd' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 40px; }
select option { background: var(--panel); color: var(--text); }
textarea { min-height: 130px; resize: vertical; }
input::placeholder, textarea::placeholder { color: var(--faint); }
input:focus, select:focus, textarea:focus { border-color: rgba(63, 182, 245, .65); box-shadow: 0 0 0 3px rgba(63, 182, 245, .14); }
.form-group.error input, .form-group.error textarea { border-color: rgba(248, 113, 113, .7); box-shadow: 0 0 0 3px rgba(248, 113, 113, .1); }
.form-error-tip { display: none; color: #fca5a5; font-size: 0.8125rem; }
.form-group.error .form-error-tip { display: block; }
.form-success { display: none; text-align: center; padding: 34px 20px; }
.form-success.show { display: block; }
.form-success .ok-ring { width: 60px; height: 60px; margin: 0 auto 18px; border-radius: 8px; display: grid; place-items: center; background: rgba(52, 211, 153, .1); border: 1px solid rgba(52, 211, 153, .4); }
.form-success .ok-ring svg { width: 28px; height: 28px; color: var(--ok); }
.form-success h3 { margin: 0 0 10px; font-size: 1.25rem; }
.form-success p { margin: 0; color: var(--muted); font-size: 0.90625rem; }


/* ---------- 13. 产品案例 ---------- */
.gallery { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.product-card {
  background: rgba(255, 255, 255, .025); border: 1px solid var(--line);
  border-radius: var(--radius); overflow: hidden;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.product-card:hover { transform: translateY(-5px); border-color: rgba(63, 182, 245, .4); box-shadow: var(--shadow); }
.product-card .thumb { overflow: hidden; aspect-ratio: 1 / 1; position: relative; }
.thumb-badge { position: absolute; left: 12px; top: 12px; padding: 4px 10px; border-radius: 4px; background: rgba(5, 10, 20, .78); border: 1px solid var(--line-strong); font-size: 0.75rem; letter-spacing: .08em; color: #cfe1f5; }
section[id] { scroll-margin-top: 90px; }
.product-card .thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.product-card:hover .thumb img { transform: scale(1.05); }
.product-card .content { padding: 20px; }
.product-card h3 { margin: 0 0 8px; font-size: 1.09375rem; letter-spacing: .02em; }
.product-card p { margin: 0; color: var(--muted); font-size: 0.84375rem; line-height: 1.65; }
.product-meta { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 14px; }
.product-meta span { font-size: 0.75rem; padding: 4px 9px; border-radius: 3px; background: rgba(63, 182, 245, .07); color: #a8d8f8; border: 1px solid rgba(63, 182, 245, .16); letter-spacing: .03em; }

/* ---------- 14. 表格 ---------- */
.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 8px; background: rgba(255, 255, 255, .02); }
table { width: 100%; border-collapse: collapse; min-width: 680px; }
th, td { padding: 15px 18px; border-bottom: 1px solid var(--line); text-align: left; }
th { font-size: 0.8125rem; letter-spacing: .08em; color: #dce8f6; background: rgba(63, 182, 245, .06); font-weight: 700; white-space: nowrap; }
td { font-size: 0.90625rem; color: var(--muted); }
tbody tr { transition: background .2s ease; }
tbody tr:hover { background: rgba(63, 182, 245, .04); }
tbody tr:last-child td { border-bottom: none; }

/* ---------- 15. CTA 横幅 ---------- */
.cta-banner {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1.15fr .85fr; gap: 24px; align-items: center;
  padding: 46px; border-radius: 14px;
  background: linear-gradient(130deg, rgba(30, 143, 214, .14), rgba(12, 20, 36, .9) 55%, rgba(249, 115, 22, .08));
  border: 1px solid var(--line-strong); box-shadow: var(--shadow);
}
.cta-banner::after { content: ""; position: absolute; right: -46px; top: -46px; width: 190px; height: 190px; border: 1px solid rgba(63, 182, 245, .14); transform: rotate(45deg); pointer-events: none; }
.cta-banner h3 { margin: 0 0 12px; font-size: clamp(1.45rem, 2.6vw, 1.95rem); letter-spacing: .02em; }
.cta-banner p { margin: 0; color: var(--muted); max-width: 520px; }
.cta-banner .btns { justify-content: flex-end; margin-top: 0; position: relative; z-index: 1; }

/* ---------- 16. 子页页头 ---------- */
.breadcrumb { padding: 26px 0 0; color: var(--faint); font-size: 0.84375rem; }
.breadcrumb a:hover { color: var(--brand); }
.page-hero { position: relative; padding: 56px 0 52px; overflow: hidden; background: linear-gradient(180deg, rgba(63, 182, 245, .05), transparent 70%); }
.page-hero h1 { font-size: clamp(2rem, 3.8vw, 2.9rem); line-height: 1.18; margin: 18px 0 14px; font-weight: 800; letter-spacing: .02em; }
.page-hero p { max-width: 780px; margin: 0; color: var(--muted); font-size: 1rem; }
.image-banner { margin-top: 36px; position: relative; }
.image-banner img { width: 100%; aspect-ratio: 3 / 1; object-fit: cover; border-radius: 12px; border: 1px solid var(--line-strong); box-shadow: var(--shadow); }

/* ---------- 17. 数据条 ---------- */
.stat-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.stat-strip .stat-card { text-align: center; padding: 26px 16px; }
.stat-strip .stat-num { font-size: 2.125rem; }

/* ---------- 18. 联系页 ---------- */
.contact-list { display: grid; gap: 14px; margin-top: 8px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; padding: 18px 20px; border-radius: 8px; background: rgba(255, 255, 255, .025); border: 1px solid var(--line); transition: border-color .25s ease; }
.contact-item:hover { border-color: rgba(63, 182, 245, .35); }
.contact-item .icon-box { width: 42px; height: 42px; border-radius: 8px; }
.contact-item .icon-box svg { width: 20px; height: 20px; }
.contact-item h4 { margin: 0 0 4px; font-size: 0.9375rem; color: #d5e1f0; }
.contact-item p { margin: 0; color: var(--muted); font-size: 0.90625rem; }
.contact-item p a { color: #e8f2fc; font-weight: 700; font-size: 1rem; font-family: var(--font-num); letter-spacing: .03em; }
.contact-item p a:hover { color: var(--brand); }

.wechat-card { display: flex; gap: 18px; align-items: center; padding: 20px; border-radius: 8px; background: rgba(34, 197, 94, .05); border: 1px solid rgba(34, 197, 94, .22); }
.wechat-card img { width: 96px; height: 96px; border-radius: 6px; flex: none; background: #fff; padding: 5px; }
.wechat-card h4 { margin: 0 0 6px; font-size: 0.96875rem; }
.wechat-card p { margin: 0; color: var(--muted); font-size: 0.84375rem; }
.wechat-card .wx-num { color: #86efac; font-weight: 700; font-family: var(--font-num); letter-spacing: .04em; }

/* ---------- 19. 页脚 ---------- */
.footer { padding: 64px 0 0; border-top: 1px solid var(--line); background: #05090f; }
.footer-grid { display: grid; grid-template-columns: 1.3fr .8fr .8fr 1fr; gap: 36px; }
.footer-grid img { height: 42px; width: auto; margin-bottom: 16px; }
.footer p, .footer li, .footer a, .footer small { color: var(--muted); font-size: 0.875rem; }
.footer h4 { margin: 4px 0 14px; font-size: 0.9375rem; color: #e4edf8; letter-spacing: .06em; }
.footer ul { list-style: none; padding: 0; display: grid; gap: 10px; }
.footer a:hover { color: var(--brand); }
.footer-contact li { display: flex; gap: 9px; align-items: baseline; }
.footer-contact svg { width: 14px; height: 14px; color: var(--brand); flex: none; transform: translateY(2px); }
.footer-bottom { margin-top: 44px; padding: 20px 0; border-top: 1px solid var(--line); display: flex; justify-content: space-between; gap: 12px 24px; flex-wrap: wrap; }
.footer-bottom small { color: var(--faint); font-size: 0.8125rem; font-family: var(--font-num); letter-spacing: .04em; }
.footer-bottom a:hover { color: var(--brand); }

/* ---------- 20. 悬浮联系栏（桌面端） ---------- */
.floatbar { position: fixed; right: 20px; top: 50%; transform: translateY(-50%); z-index: 990; display: flex; flex-direction: column; gap: 8px; }
.float-item {
  position: relative; width: 56px; padding: 10px 0 8px; border-radius: 8px;
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  background: rgba(11, 19, 35, .94); backdrop-filter: blur(10px);
  border: 1px solid var(--line-strong); color: #cfdbec; cursor: pointer;
  font-family: inherit; font-size: 0.75rem; font-weight: 600;
  transition: transform .2s ease, border-color .2s ease, color .2s ease, background .2s ease;
}
.float-item svg { width: 20px; height: 20px; color: var(--brand); transition: color .2s ease; }
.float-item:hover { transform: translateX(-3px); border-color: rgba(63, 182, 245, .55); color: #fff; }
.float-item.tone-cta { background: var(--cta); border-color: transparent; color: #fff; }
.float-item.tone-cta svg { color: #fff; }
.float-item.tone-green svg { color: #4ade80; }
/* 边距装不下悬浮栏时自动隐藏（script.js fitScreenScale 切换），防止压住内容 */
.float-cramped .floatbar, .float-cramped .wechat-pop { display: none; }

.wechat-pop {
  position: fixed; right: 90px; top: 50%; transform: translateY(-50%) translateX(12px); z-index: 991;
  width: 230px; padding: 22px; border-radius: 12px; text-align: center;
  background: rgba(9, 16, 30, .98); border: 1px solid var(--line-strong); box-shadow: var(--shadow);
  opacity: 0; pointer-events: none; transition: opacity .25s ease, transform .25s ease;
}
.wechat-pop.show { opacity: 1; pointer-events: auto; transform: translateY(-50%) translateX(0); }
.wechat-pop img { width: 150px; height: 150px; margin: 0 auto 12px; border-radius: 8px; background: #fff; padding: 6px; }
.wechat-pop p { margin: 0 0 4px; font-size: 0.875rem; color: var(--muted); }
.wechat-pop .wx-num { font-size: 1.0625rem; font-weight: 700; color: #86efac; font-family: var(--font-num); letter-spacing: .06em; }
.wechat-pop .copy-wx { margin-top: 12px; width: 100%; padding: 9px 0; border-radius: 6px; border: 1px solid rgba(34, 197, 94, .4); background: rgba(34, 197, 94, .1); color: #86efac; font-family: inherit; font-size: 0.84375rem; font-weight: 700; cursor: pointer; transition: background .2s ease; }
.wechat-pop .copy-wx:hover { background: rgba(34, 197, 94, .2); }

/* ---------- 21. 移动端底部行动条 ---------- */
.mobile-cta { display: none; }

/* ---------- 22. Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 40px; transform: translateX(-50%) translateY(20px); z-index: 1200;
  padding: 13px 24px; border-radius: 8px; background: rgba(9, 16, 30, .97);
  border: 1px solid rgba(52, 211, 153, .4); border-left: 3px solid var(--ok); color: #c8f7e4; font-size: 0.90625rem; font-weight: 600;
  box-shadow: var(--shadow); opacity: 0; pointer-events: none; transition: opacity .3s ease, transform .3s ease;
  max-width: calc(100vw - 40px); text-align: center;
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---------- 23. 滚动渐入 ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
.d1 { transition-delay: .07s; } .d2 { transition-delay: .14s; } .d3 { transition-delay: .21s; } .d4 { transition-delay: .28s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  /* 走马灯为低速平移，始终循环（用户明确要求循环播放） */
  .marquee-track { animation-duration: 55s !important; animation-iteration-count: infinite !important; }
}

/* ---------- 24. 响应式 ---------- */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; padding: 60px 0 72px; }
  .hero-media > img { aspect-ratio: 15 / 8; }
  .image-banner img { aspect-ratio: 15 / 8; }
  .split, .grid-2, .qq-grid, .cta-banner { grid-template-columns: 1fr; }
  .grid-4, .gallery { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .cta-banner .btns { justify-content: flex-start; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 960px) {
  /* 手机/窄屏：直接显示顶栏导航（与桌面一致）。第一行 logo，第二行 5 个导航标签。
     站主要求手机默认整体字号 80%：全站字号已换算为 rem，改 html 字号即可整体缩放 */
  html { font-size: 12.8px; }
  /* 工艺标签换行时行首会有孤立竖线，手机改为纯间距分隔 */
  .hero-tags { column-gap: 12px; }
  .hero-tags span { padding-left: 0; }
  .hero-tags span + span::before { display: none; }
  .nav-wrap { flex-wrap: wrap; height: auto; padding-top: 10px; gap: 0 14px; }
  .logo-link img { height: 36px; }
  .nav {
    order: 3; width: 100%;
    justify-content: space-between; gap: 2px;
    overflow-x: auto; -webkit-overflow-scrolling: touch;
    padding-bottom: 6px;
  }
  .nav a { padding: 8px 4px 10px; font-size: 0.84375rem; white-space: nowrap; }
  .nav a::after { left: 4px; right: 4px; bottom: 2px; }
}

@media (max-width: 760px) {
  .section { padding: 68px 0; }
  .section-sm { padding: 52px 0; }
  .logo-link img { height: 34px; }
  .hero-inner { padding: 44px 0 60px; }
  .hero-copy h1 { font-size: 2.1rem; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); }
  .hero-media > img { aspect-ratio: 11 / 10; }
  .grid-4, .grid-3, .gallery, .stat-strip { grid-template-columns: 1fr; }
  .panel { padding: 26px 20px; }
  .qq-panel { padding: 30px 22px; }
  .cta-banner { padding: 30px 24px; }
  .image-banner img { aspect-ratio: 4 / 3; }
  .btns { flex-direction: column; }
  .btns .btn { width: 100%; }
  .topbar-right { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; gap: 6px; }
  .floatbar, .wechat-pop { display: none; }
  body { padding-bottom: 64px; }
  .mobile-cta {
    display: grid; grid-template-columns: 1fr 1fr 1.2fr; position: fixed; left: 0; right: 0; bottom: 0; z-index: 1005;
    background: rgba(6, 11, 21, .96); backdrop-filter: blur(14px); border-top: 1px solid var(--line-strong);
    padding: 8px 10px calc(8px + env(safe-area-inset-bottom));
  }
  .mobile-cta a, .mobile-cta button {
    display: flex; align-items: center; justify-content: center; gap: 7px;
    padding: 12px 6px; border-radius: 8px; border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, .04); color: var(--text);
    font-family: inherit; font-size: 0.90625rem; font-weight: 700; cursor: pointer;
  }
  .mobile-cta svg { width: 17px; height: 17px; }
  .mobile-cta .mc-wx { color: #86efac; }
  .mobile-cta .mc-wx svg { color: #4ade80; }
  .mobile-cta .mc-quote { background: var(--cta); border-color: transparent; color: #fff; }
  .toast { bottom: 86px; }
}

/* ---------- 27. 桌面端显示适配 ----------
   同比缩放主体在 script.js「桌面端同比缩放」：zoom = min(屏幕有效宽÷1950,
   窗口宽÷1180)，下限 0.75、上限 3——主流屏幕 × 主流缩放比（100/125/150%）
   都渲染出完全相同的比例（基准宽 1950：内容列 1320 占 67.7%、两侧各留
   16.2%），图片画面比例由各处 aspect-ratio 锁死，见 script.js 注释对照表。
   下面一条只是 JS 关闭时的保底：1280-1885 收窄内容列到 70%，边距保底 15% */
@media (min-width: 1280px) {
  :root { --container: min(1320px, 70%); }
}

/* ---------- 28. 询价弹窗（全站统一简洁询价界面） ----------
   3 项必填 + 可展开选填；桌面居中卡片，手机从底部滑入。
   入口：.js-quote（悬浮栏询价 / 手机底部行动条 / 各页 CTA） */
.quote-overlay {
  position: fixed; inset: 0; z-index: 1200;
  display: flex; align-items: center; justify-content: center; padding: 24px;
  background: rgba(2, 6, 16, .74);
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  opacity: 0; visibility: hidden;
  transition: opacity .25s ease, visibility .25s;
}
.quote-overlay.show { opacity: 1; visibility: visible; }
body.qm-lock { overflow: hidden; }
.qm-card {
  position: relative;
  width: min(480px, 100%);
  max-height: min(88vh, 780px);
  overflow-y: auto; overscroll-behavior: contain;
  background: linear-gradient(165deg, #101d33, #0a1322 55%, #0c1728);
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  padding: 30px 30px 24px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, .6);
  transform: translateY(18px) scale(.97);
  transition: transform .28s ease;
}
.quote-overlay.show .qm-card { transform: none; }
.qm-close {
  position: absolute; top: 14px; right: 14px; width: 34px; height: 34px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px; border: 1px solid var(--line);
  background: rgba(255, 255, 255, .03); color: var(--muted);
  cursor: pointer; transition: .2s;
}
.qm-close:hover { color: #fff; border-color: var(--line-strong); background: rgba(255, 255, 255, .08); }
.qm-close svg { width: 15px; height: 15px; }
.qm-head h3 { margin: 0 0 6px; font-size: 1.45rem; letter-spacing: .02em; }
.qm-head p { margin: 0 0 22px; color: var(--muted); font-size: 0.875rem; }
.qm-card form { display: grid; gap: 14px; }
.qm-card textarea { min-height: 62px; resize: vertical; }  /* 一句话框缩小 */
.qm-more {
  display: flex; align-items: center; gap: 9px; width: 100%;
  padding: 11px 14px; border-radius: 8px;
  border: 1px dashed rgba(63, 182, 245, .35);
  background: rgba(63, 182, 245, .05);
  color: #a8d8f8; font-size: 0.875rem; font-family: inherit;
  cursor: pointer; transition: .2s;
}
.qm-more:hover { border-color: rgba(63, 182, 245, .6); background: rgba(63, 182, 245, .1); }
.qm-more svg { width: 14px; height: 14px; flex: none; transition: transform .2s; }
.qm-more.open svg { transform: rotate(45deg); }  /* ＋ 转 × */
.qm-extra { display: none; }
.qm-extra.open {
  display: grid; gap: 14px;
  padding: 16px 16px 2px;
  border: 1px solid var(--line); border-radius: 10px;
  background: rgba(255, 255, 255, .02);
}
.qm-hp { position: absolute; left: -9999px; top: -9999px; }
.qm-submit {
  height: 54px; margin-top: 2px;
  font-size: 1.0625rem; letter-spacing: .06em;
  box-shadow: 0 12px 32px rgba(30, 143, 214, .38);
}
.qm-secure { margin: 2px 0 0; display: flex; align-items: center; gap: 6px; color: #86efac; font-size: 0.78rem; }
.qm-secure svg { width: 12px; height: 12px; flex: none; }
.qm-card .form-success { padding: 34px 10px 26px; }
.qm-done { margin-top: 18px; }

/* 首页快速询价板块（表单已并入弹窗，右栏改为 CTA 卡） */
.qq-cta { display: flex; align-items: center; justify-content: center; }
.qq-cta-card {
  width: 100%; max-width: 430px; padding: 36px 32px;
  border: 1px solid var(--line-strong); border-radius: 14px;
  background: linear-gradient(150deg, rgba(30, 143, 214, .1), rgba(12, 20, 36, .9) 55%);
  box-shadow: var(--shadow); text-align: center;
}
.qq-cta-line { margin: 0 0 6px; font-size: 1.0625rem; color: #d5e1f0; }
.qq-cta-line strong { color: #ffb77a; }
.qq-cta-sub { margin: 0 0 24px; color: var(--muted); font-size: 0.875rem; }
.qq-cta .btns { margin-top: 0; justify-content: center; }
.qq-cta-alt { margin: 16px 0 0; color: var(--faint); font-size: 0.84375rem; }

/* 联系页询价面板（表单已并入弹窗，改为打开按钮） */
.qf-desc { color: var(--muted); margin: 0 0 18px; }
.qf-list { margin: 0 0 22px; padding: 0; list-style: none; display: grid; gap: 10px; }
.qf-list li { position: relative; padding-left: 26px; color: var(--muted); font-size: 0.90625rem; }
.qf-list li::before {
  content: ""; position: absolute; left: 2px; top: .55em;
  width: 13px; height: 7px; border-left: 2px solid var(--brand); border-bottom: 2px solid var(--brand);
  transform: rotate(-45deg);
}
.qf-open { height: 54px; font-size: 1.0625rem; letter-spacing: .06em; }

@media (max-width: 760px) {
  .quote-overlay { padding: 0; align-items: flex-end; }
  .qm-card {
    width: 100%; max-height: 92vh;
    border-radius: 18px 18px 0 0;
    padding: 24px 22px calc(24px + env(safe-area-inset-bottom));
    transform: translateY(100%);
    transition: transform .32s cubic-bezier(.2, .9, .3, 1);
  }
  .quote-overlay.show .qm-card { transform: none; }
  .qq-cta-card { padding: 28px 22px; }
}