/* ==========================================================================
   铭锋古建 · 铝代木仿古门窗 · 产品站样式
   配色：青砖白底 + 松烟墨绿 + 青瓷绿 + 少量黄铜（与本品牌另一站点「墨 / 米黄 / 朱砂」区分）
   字体：仅系统通用字体族，不加载外部字体文件
   ========================================================================== */

:root {
  /* 月白底 + 墨黛 + 石青主色 + 石绿辅色 + 描金 */
  --paper: #EEF4F3;
  --paper-2: #E3EDEB;
  --paper-3: #F7FBFA;
  --ink: #12242B;
  --ink-2: #2C424A;
  --muted: #586A70;
  --brand: #157A99;       /* 石青 · 主色 */
  --brand-bright: #23A3C4;/* 亮石青 · 装饰线与深底点缀 */
  --brand-deep: #12657F;  /* 深石青 · 悬停与线 */
  --brand-ink: #0E5468;   /* 深石青 · 浅底小字 */
  --copper: #B08A3E;      /* 描金 */
  --copper-ink: #8A6520;
  --gold: #E8C77A;        /* 深底上的金 */
  --red: #1A87AD;         /* 旧变量名，指向主色 */
  --stone: #2E9B7E;
  --accent: #2E9B7E;      /* 石绿 · 辅色 */
  --deep: #0B2A34;
  --deep-2: #071E26;
  --line: rgba(18, 36, 43, .16);
  --line-2: rgba(18, 36, 43, .08);
  --serif: "Songti SC", "Source Han Serif SC", "Noto Serif SC", "STSong", "SimSun", "NSimSun", serif;
  --sans: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  --maxw: 1200px;
  --pad: clamp(20px, 4vw, 48px);
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 18px;
  line-height: 1.75;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--brand); color: var(--ink); }

img, svg { max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--serif); font-weight: 600; margin: 0; line-height: 1.3; letter-spacing: .01em; text-wrap: balance; }
p { margin: 0 0 1em; }
ul { margin: 0 0 1em; padding-left: 1.2em; }
table { border-collapse: collapse; }

:focus-visible { outline: 2px solid var(--ink); outline-offset: 3px; }

.wrap { width: min(var(--maxw), 100% - var(--pad) * 2); margin-inline: auto; }

.skip {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--ink); color: var(--paper); padding: 12px 20px;
}
.skip:focus { left: 12px; top: 12px; }

.ic {
  width: 19px; height: 19px; flex: none;
  fill: none; stroke: currentColor; stroke-width: 1.8;
  stroke-linecap: round; stroke-linejoin: round;
}

/* ---------------- 构件线稿 ---------------- */
.art { display: block; width: 100%; height: auto; }
.art .th { stroke-width: 1; opacity: .85; }
.art .f { fill: rgba(26, 135, 173, .10); stroke: currentColor; stroke-width: 1.15; }
.art .dot { fill: currentColor; stroke: none; }
.art .ac { stroke: var(--brand-deep); stroke-width: 1.4; }
.art .cu { stroke: var(--copper); }
.art .gr { stroke: rgba(46, 155, 126, .16); stroke-width: 1; }

/* ---------------- 顶栏 ---------------- */
.top {
  position: sticky; top: 0; z-index: 60;
  background: rgba(238, 244, 243, .94);
  backdrop-filter: saturate(1.2) blur(10px);
  border-bottom: 1px solid var(--line);
}
.top-in {
  width: min(var(--maxw), 100% - var(--pad) * 2);
  margin-inline: auto;
  height: 78px;
  display: flex; align-items: center; gap: 32px;
}
.brand { display: flex; align-items: center; gap: 12px; flex: none; }
.brand .mark { flex: none; }
.brand-t { display: flex; flex-direction: column; line-height: 1.15; }
.brand-t b { font-family: var(--serif); font-size: 22px; letter-spacing: .08em; }
.brand-t i { font-style: normal; font-size: 11.5px; color: var(--muted); letter-spacing: .18em; margin-top: 4px; }

.nav { display: flex; gap: 26px; margin-left: auto; }
.nav a {
  font-size: 16px; position: relative; padding: 6px 0; white-space: nowrap; color: var(--ink-2);
}
.nav a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 2px; background: var(--red); transition: right .25s ease;
}
.nav a:hover::after, .nav a[aria-current="page"]::after { right: 0; }
.nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }

.top-act { display: flex; align-items: center; gap: 10px; flex: none; margin-left: auto; }
.icon-btn {
  display: inline-flex; align-items: center; gap: 7px;
  height: 44px; padding: 0 12px; background: none;
  border: 1px solid var(--line); color: var(--ink-2);
  font: inherit; font-size: 14.5px; cursor: pointer; border-radius: 2px;
  transition: border-color .2s, color .2s;
}
.icon-btn:hover { border-color: var(--copper); color: var(--ink); }
.icon-t { display: none; }
.tel-btn {
  display: inline-flex; align-items: center; gap: 8px;
  height: 44px; padding: 0 18px; background: var(--ink); color: var(--paper);
  font-size: 16px; letter-spacing: .03em; border-radius: 2px;
  transition: background .2s;
}
.tel-btn:hover { background: var(--brand-deep); color: #FFFFFF; }
.tel-btn .ic { width: 17px; height: 17px; }
.only-m { display: none; }

.mnav {
  border-top: 1px solid var(--line);
  padding: 10px var(--pad) 18px;
  background: var(--paper);
  display: none; gap: 2px;
}
.mnav[hidden] { display: none !important; }
.mnav a { padding: 12px 2px; font-size: 17px; border-bottom: 1px solid var(--line-2); }
.mnav-tel { color: var(--brand-ink); font-weight: 600; display: flex; gap: 8px; align-items: center; border: 0 !important; }

/* ---------------- 按钮 ---------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  min-height: 52px; padding: 0 26px;
  font: inherit; font-size: 16.5px; font-weight: 600; letter-spacing: .02em;
  border: 1px solid transparent; border-radius: 2px; cursor: pointer;
  transition: background .2s, color .2s, border-color .2s, transform .2s;
}
.btn .ic { width: 18px; height: 18px; }
.btn.primary { background: var(--brand); color: #FFFFFF; }
.btn.primary:hover { background: var(--brand-deep); }
.btn.ghost { border-color: var(--line); color: inherit; background: transparent; }
.btn.ghost:hover { border-color: var(--copper-ink); color: var(--copper-ink); }

/* ---------------- 首屏 ---------------- */
.hero {
  position: relative;
  background: var(--deep);
  color: var(--paper);
  margin-inline: calc(50% - 50vw);
  padding-inline: calc(50vw - 50%);
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(120% 90% at 78% 18%, rgba(26, 135, 173, .18), transparent 58%),
    repeating-linear-gradient(90deg, rgba(232, 199, 122, .05) 0 1px, transparent 1px 88px),
    repeating-linear-gradient(0deg, rgba(232, 199, 122, .05) 0 1px, transparent 1px 88px);
  pointer-events: none;
}
.hero-in {
  position: relative;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  display: grid; grid-template-columns: 1.05fr .95fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: center;
  padding: clamp(52px, 7vw, 92px) 0 clamp(52px, 7vw, 92px);
}
.home .hero-in { min-height: 72vh; }
.hero-copy { max-width: 640px; }
.kicker {
  display: flex; align-items: center; gap: 14px;
  font-size: 13.5px; letter-spacing: .22em; text-transform: uppercase;
  color: var(--gold); margin: 0 0 26px;
}
.kicker span { display: block; width: 44px; height: 1px; background: currentColor; }
.hero h1 {
  font-size: clamp(44px, 6.2vw, 84px);
  line-height: 1.08; letter-spacing: .02em;
  margin: 0 0 26px; color: var(--paper);
}
.hero .lead {
  font-size: clamp(17px, 1.35vw, 19.5px); line-height: 1.95;
  color: rgba(238, 244, 243, .8); max-width: 36em; margin-bottom: 34px;
}
.hero-act { display: flex; flex-wrap: wrap; gap: 14px; }
.hero .btn.ghost { border-color: rgba(232, 199, 122, .45); color: var(--paper); }
.hero .btn.ghost:hover { border-color: var(--gold); color: var(--gold); }
.hero-note { margin-top: 26px; font-size: 14px; letter-spacing: .04em; color: rgba(238, 244, 243, .52); }
.hero-art { position: relative; width: 100%; max-width: 520px; margin-left: auto; }
.hero-art .art { color: rgba(232, 199, 122, .8); }
.hero-art .art .ac { stroke: rgba(26, 135, 173, .95); }
.hero-art .art .f { fill: rgba(232, 199, 122, .08); }
.hero-art::before, .hero-art::after {
  content: ""; position: absolute; width: 26px; height: 26px; border: 1px solid rgba(232, 199, 122, .5);
}
.hero-art::before { left: -10px; top: -10px; border-right: 0; border-bottom: 0; }
.hero-art::after { right: -10px; bottom: -10px; border-left: 0; border-top: 0; }
.hero-art-cap {
  display: block; margin-top: 10px; text-align: right;
  font-size: 11.5px; letter-spacing: .18em; color: rgba(238, 244, 243, .38);
}
.hero-side {
  position: absolute; right: 22px; top: 50%; transform: translateY(-50%);
  writing-mode: vertical-rl; text-orientation: upright;
  font-family: var(--serif); font-size: 13px; letter-spacing: .5em;
  color: rgba(232, 199, 122, .45);
}

/* 子页首屏略矮 */
.hero-sm .hero-in { min-height: 0; padding-top: clamp(44px, 6vw, 76px); padding-bottom: clamp(44px, 6vw, 76px); }
.hero-sm h1 { font-size: clamp(34px, 4.4vw, 54px); }
.hero h1 { text-wrap: balance; }
.hero-crumb { margin-bottom: 22px; }
.hero-crumb .crumb { padding: 0; color: rgba(238, 244, 243, .5); }
.hero-crumb .crumb a:hover { color: var(--gold); }
.crumbwrap { padding-top: 6px; }

/* ---------------- 段落 ---------------- */
main { display: block; }
.pagebody { padding-bottom: 8px; }
.sec {
  padding: clamp(56px, 7vw, 96px) 0;
  border-top: 1px solid var(--line);
}
.pagebody > .sec:first-child, .pagebody > .hero + .sec { border-top: 0; }

.sec-head { margin-bottom: clamp(32px, 4vw, 52px); }
.sec-head h2 {
  font-size: clamp(30px, 3.9vw, 46px);
  line-height: 1.25; letter-spacing: .01em; position: relative;
}
.sec-head h2::before {
  content: ""; display: block; width: 56px; height: 2px;
  background: var(--copper); margin-bottom: 22px;
}
.sec-note {
  margin: 18px 0 0; color: var(--muted); font-size: 16.5px;
  line-height: 1.85; max-width: 54em;
}

.pageh { padding: clamp(36px, 5vw, 60px) 0 8px; }
.pageh h1 { font-size: clamp(34px, 4.6vw, 58px); line-height: 1.2; }
.pageh .lead { margin-top: 18px; font-size: 19px; color: var(--muted); max-width: 46em; }

.crumb { font-size: 13.5px; color: var(--muted); padding: 20px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.crumb a:hover { color: var(--brand-ink); }
.crumb .sep { color: var(--line); }

/* ---------------- 数字 ---------------- */
.sec-stats {
  margin-inline: calc(50% - 50vw);
  padding-inline: calc(50vw - 50%);
  background: var(--brand);
  border-top: 1px solid rgba(18, 36, 43, .22);
  border-bottom: 1px solid rgba(18, 36, 43, .22);
}
.sec-stats .sec-head, .sec-stats .stats { width: 100%; max-width: var(--maxw); margin-inline: auto; }
.sec-stats .sec-head h2 { color: #FFFFFF; }
.sec-stats .sec-head h2::before { background: #FFFFFF; }
.sec-stats .sec-note { color: rgba(255, 255, 255, .9); }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat { padding: 8px 30px; border-left: 1px solid rgba(255, 255, 255, .28); }
.stat:first-child { border-left: 0; padding-left: 0; }
.stat-n { display: flex; align-items: baseline; gap: 6px; }
.stat-n b {
  font-family: var(--serif); font-size: clamp(48px, 5.6vw, 72px);
  line-height: 1; font-weight: 600; color: #FFFFFF;
}
.stat-n i { font-style: normal; font-size: 15px; color: rgba(255, 255, 255, .92); letter-spacing: .1em; }
.stat-l { margin-top: 16px; font-size: 16.5px; font-weight: 600; color: #FFFFFF; }
.stat-l span { display: block; margin-top: 6px; font-size: 13.5px; line-height: 1.65; font-weight: 400; color: rgba(255, 255, 255, .9); }

/* ---------------- 产品卡 ---------------- */
.pgrid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.pgrid-3 { grid-template-columns: repeat(3, 1fr); }
.pcard {
  display: flex; flex-direction: column;
  background: var(--paper-3);
  border: 1px solid var(--line);
  border-radius: 2px;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.pcard:hover {
  transform: translateY(-4px);
  border-color: var(--copper);
  box-shadow: 0 14px 34px -22px rgba(11, 42, 52, .5);
}
.pcard-art {
  position: relative;
  aspect-ratio: 3 / 2;
  padding: 20px 22px;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line-2);
  overflow: hidden;
}
.pcard-art .art { height: 100%; color: var(--ink-2); opacity: .92; }
.pcard-art img { width: 100%; height: 100%; object-fit: cover; }
.pcode {
  position: absolute; left: 14px; bottom: 10px;
  font-size: 11px; letter-spacing: .16em; color: var(--muted);
}
.seal {
  position: absolute; right: 12px; top: 12px;
  width: 34px; height: 34px; display: grid; place-items: center;
  background: var(--brand); color: #FFFFFF;
  font-family: var(--serif); font-size: 17px; line-height: 1;
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, .34);
}
.pcard-b { padding: 22px 22px 24px; display: flex; flex-direction: column; flex: 1; }
.pcard-k { font-size: 11.5px; letter-spacing: .2em; color: var(--copper-ink); margin-bottom: 10px; }
.pcard h3 { font-size: 25px; margin-bottom: 8px; }
.pcard-tag { font-size: 15.5px; color: var(--ink-2); margin-bottom: 10px; font-family: var(--serif); }
.pcard-sum { font-size: 14.5px; line-height: 1.75; color: var(--muted); margin-bottom: 18px; }
.more {
  margin-top: auto; display: inline-flex; align-items: center; gap: 8px;
  font-size: 14px; color: var(--ink-2); padding-top: 4px;
}
.more .ic { width: 16px; height: 16px; transition: transform .2s; }
.pcard:hover .more { color: var(--brand-ink); }
.pcard:hover .more .ic { transform: translateX(4px); }

.pgroup { margin-top: 56px; }
.pgroup:first-of-type { margin-top: 0; }
.pgroup-head {
  display: flex; align-items: flex-start; gap: 20px;
  border-top: 2px solid var(--ink); padding-top: 20px; margin-bottom: 26px;
}
.pgroup-code {
  font-family: var(--serif); font-size: 14px; color: var(--paper);
  background: var(--ink); width: 30px; height: 30px; display: grid; place-items: center; flex: none;
}
.pgroup-head h3 { font-size: 27px; }
.pgroup-head p { margin: 6px 0 0; font-size: 15px; color: var(--muted); max-width: 48em; }
.pgroup-n { margin-left: auto; font-size: 13px; color: var(--copper-ink); letter-spacing: .1em; white-space: nowrap; padding-top: 6px; }

/* ---------------- 花格图库 ---------------- */
.patgrid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.pat { margin: 0; background: var(--paper-3); border: 1px solid var(--line); padding: 10px 10px 8px; }
.pat-art { background: var(--paper-2); border: 1px solid var(--line-2); padding: 6px; }
.pat-art .art { color: var(--ink-2); }
.pat figcaption { display: flex; align-items: baseline; justify-content: space-between; gap: 6px; margin-top: 8px; }
.pat figcaption b { font-size: 12px; letter-spacing: .08em; color: var(--brand-ink); font-weight: 600; }
.pat figcaption span { font-size: 12px; color: var(--muted); }

/* ---------------- 宣言 ---------------- */
.manifesto {
  margin-inline: calc(50% - 50vw);
  padding: clamp(64px, 8vw, 104px) calc(50vw - 50%);
  background: var(--deep); color: var(--paper);
}
.mani-in {
  width: 100%; max-width: var(--maxw); margin-inline: auto;
  display: grid; grid-template-columns: 118px 1fr; gap: clamp(24px, 4vw, 56px);
  align-items: start;
}
.mani-mark {
  width: 96px; height: 96px; display: grid; place-items: center;
  border: 1px solid rgba(232, 199, 122, .5); position: relative;
}
.mani-mark::after { content: ""; position: absolute; inset: 5px; border: 1px solid rgba(232, 199, 122, .22); }
.mani-mark span { font-family: var(--serif); font-size: 44px; color: var(--gold); }
.mani-copy h2 { font-size: clamp(28px, 3.6vw, 44px); line-height: 1.35; margin-bottom: 24px; color: var(--paper); }
.mani-copy p { font-size: 17px; line-height: 2; color: rgba(238, 244, 243, .72); max-width: 44em; margin-bottom: 14px; }

/* ---------------- 表格 ---------------- */
.tblwrap { width: 100%; overflow-x: auto; }
.tblwrap table { width: 100%; font-size: 16px; }
.cmp th, .cmp td { padding: 17px 18px; text-align: left; border-bottom: 1px solid var(--line-2); vertical-align: top; }
.cmp thead th { font-size: 13px; letter-spacing: .08em; color: var(--brand-ink); border-bottom: 1px solid var(--ink); font-weight: 600; white-space: nowrap; }
.cmp tbody tr:hover { background: var(--paper-2); }
.cmp .rowh { font-weight: 600; width: 18%; white-space: nowrap; }
.cmp td:nth-child(2) { color: var(--muted); }
.cmp td:nth-child(3) { color: var(--ink-2); }

.facts { width: 100%; font-size: 16px; }
.facts th { text-align: left; width: 30%; padding: 15px 18px 15px 0; font-weight: 500; color: var(--muted); border-bottom: 1px solid var(--line-2); vertical-align: top; }
.facts td { padding: 15px 0; border-bottom: 1px solid var(--line-2); color: var(--ink); }

.specs { width: 100%; max-width: 880px; font-size: 16px; }
.specs th {
  text-align: left; width: 30%; padding: 16px 20px 16px 0;
  font-weight: 500; color: var(--muted); border-bottom: 1px solid var(--line-2); vertical-align: top;
}
.specs td { padding: 16px 0; border-bottom: 1px solid var(--line-2); color: var(--ink-2); }

.fn { margin-top: 18px; font-size: 13.5px; line-height: 1.85; color: var(--muted); }

/* ---------------- 特点 ---------------- */
.feats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 48px; }
.feats-2 { grid-template-columns: repeat(2, 1fr); }
.feat { border-top: 1px solid var(--line); padding: 26px 0 30px; display: grid; grid-template-columns: 44px 1fr; column-gap: 16px; align-items: start; }
/* 序号必须跨两行占住第一列，否则正文 <p> 会自动落进 44px 的序号列，被挤成一字一行 */
.feat-n { font-family: var(--serif); font-size: 15px; color: var(--copper-ink); padding-top: 4px; grid-column: 1; grid-row: 1 / span 2; }
.feat h3 { grid-column: 2; grid-row: 1; font-size: 22px; margin-bottom: 8px; }
.feat p { grid-column: 2; grid-row: 2; font-size: 15.5px; line-height: 1.85; color: var(--muted); margin: 0; }

/* ---------------- 流程 ---------------- */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0 40px; }
.step { border-top: 1px solid var(--line); padding: 24px 0 34px; }
.step-n { font-family: var(--serif); font-size: 34px; color: rgba(18, 101, 127, .45); display: block; line-height: 1; margin-bottom: 14px; }
.step h3 { font-size: 21px; margin-bottom: 8px; }
.step p { font-size: 15px; line-height: 1.85; color: var(--muted); margin: 0; }

/* ---------------- 场景 ---------------- */
.scenes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.scene { background: var(--paper-3); border: 1px solid var(--line); padding: 0 0 24px; }
.scene-art { padding: 18px 26px; background: var(--paper-2); border-bottom: 1px solid var(--line-2); }
.scene-art .art { height: 132px; color: var(--ink-2); opacity: .9; }
.scene h3 { font-size: 22px; margin: 22px 22px 8px; }
.scene p { font-size: 15px; line-height: 1.85; color: var(--muted); margin: 0 22px 16px; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 22px; }
.tags span {
  font-size: 12.5px; padding: 4px 10px; border: 1px solid var(--line);
  color: var(--ink-2); background: rgba(255, 255, 255, .35);
}
.tags-lg span { font-size: 15px; padding: 9px 16px; }

/* ---------------- FAQ ---------------- */
.faqs { max-width: 920px; }
.faq { border-bottom: 1px solid var(--line); }
.faq summary {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 24px;
  padding: 22px 0; cursor: pointer; list-style: none;
  font-size: 18px; font-weight: 600; line-height: 1.6;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary .ic { margin-top: 4px; color: var(--copper-ink); transition: transform .25s; transform: rotate(90deg); flex: none; }
.faq[open] summary .ic { transform: rotate(-90deg); }
.faq[open] summary { color: var(--brand-ink); }
.faq-a { padding: 0 44px 24px 0; font-size: 16px; line-height: 1.95; color: var(--ink-2); }
.faq-a p { margin-bottom: .8em; }
.faq-a p:last-child { margin-bottom: 0; }

/* ---------------- 正文 ---------------- */
.prose { max-width: 900px; }
.prose p { font-size: 17px; line-height: 2; color: var(--ink-2); margin-bottom: 1.1em; }
.prose strong { color: var(--ink); font-weight: 600; }
.prose h3, .prose h4 { margin: 1.6em 0 .6em; font-size: 22px; }
.prose ul { font-size: 16.5px; line-height: 1.95; color: var(--ink-2); }
.prose li { margin-bottom: .4em; }
.prose code { font-size: .92em; background: rgba(26, 135, 173, .12); padding: 1px 5px; }

/* ---------------- CTA ---------------- */
.ctaband {
  position: relative; overflow: hidden;
  margin-inline: calc(50% - 50vw);
  padding: clamp(56px, 7vw, 92px) calc(50vw - 50%);
  background: var(--deep); color: var(--paper);
}
.ctaband-in {
  position: relative; z-index: 1;
  width: 100%; max-width: 760px; margin-inline: auto;
}
.ctaband h2 { font-size: clamp(30px, 4vw, 48px); line-height: 1.28; margin-bottom: 18px; color: var(--paper); }
.ctaband p { font-size: 17px; line-height: 1.9; color: rgba(238, 244, 243, .72); max-width: 42em; }
.ctaband-act { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }
.ctaband .btn.ghost { border-color: rgba(232, 199, 122, .45); color: var(--paper); }
.ctaband-note { margin-top: 22px; font-size: 13.5px; letter-spacing: .05em; color: rgba(238, 244, 243, .45); }
.ctaband-mark {
  position: absolute; right: 2%; top: 50%; transform: translateY(-50%);
  font-family: var(--serif); font-size: clamp(160px, 26vw, 340px); line-height: 1;
  color: rgba(232, 199, 122, .07); pointer-events: none; user-select: none;
}

/* ---------------- 产品详情 ---------------- */
.pd-top {
  display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px);
  align-items: center; padding: clamp(28px, 4vw, 52px) 0 clamp(44px, 6vw, 72px);
}
.pd-copy .kicker { color: var(--copper-ink); margin-bottom: 18px; }
.pd-copy h1 { font-size: clamp(34px, 4.1vw, 52px); margin-bottom: 14px; }
.pd-tag { font-family: var(--serif); font-size: clamp(19px, 2vw, 25px); color: var(--brand-ink); margin-bottom: 18px; }
.pd-sum { font-size: 17px; line-height: 1.95; color: var(--ink-2); max-width: 34em; margin-bottom: 30px; }
.pd-note { margin-top: 20px; font-size: 13.5px; color: var(--muted); }
.pd-fig { margin: 0; border: 1px solid var(--line); background: var(--paper-3); padding: 26px 26px 16px; }
.pd-art { background: var(--paper-2); border: 1px solid var(--line-2); padding: 14px; }
.pd-art .art { color: var(--ink-2); }
.pd-art img { width: 100%; height: auto; display: block; }
.pd-fig figcaption { margin-top: 14px; font-size: 12px; letter-spacing: .14em; color: var(--muted); text-align: right; }

.pblock { padding: clamp(40px, 5vw, 64px) 0; border-top: 1px solid var(--line); }
.pblock-head { display: flex; align-items: baseline; gap: 16px; margin-bottom: 30px; }
.pblock-head span { font-family: var(--serif); font-size: 14px; color: var(--copper-ink); letter-spacing: .1em; }
.pblock-head h2 { font-size: clamp(26px, 3vw, 34px); }

/* ---------------- 联系 ---------------- */
.ct { display: grid; grid-template-columns: repeat(2, 1fr); gap: 0 48px; border-top: 1px solid var(--ink); }
.ct-item { padding: 20px 0; border-bottom: 1px solid var(--line-2); display: grid; grid-template-columns: 110px 1fr; gap: 16px; align-items: baseline; }
.ct-item span { font-size: 13.5px; letter-spacing: .1em; color: var(--muted); }
.ct-item b { font-size: 17px; font-weight: 500; }
.ct-item a { font-size: 19px; font-weight: 600; color: var(--brand-ink); }
.ct-item a:hover { text-decoration: underline; }
.ct-act { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 32px; }

/* ---------------- 页脚 ---------------- */
.foot { background: var(--deep-2); color: rgba(238, 244, 243, .7); padding: clamp(48px, 6vw, 76px) 0 34px; }
.foot-in {
  width: min(var(--maxw), 100% - var(--pad) * 2); margin-inline: auto;
  display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 40px;
}
.fbrand-top { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; color: var(--gold); }
.fbrand-top b { font-family: var(--serif); font-size: 24px; color: var(--paper); letter-spacing: .08em; }
.fbrand p { font-size: 14.5px; line-height: 1.85; max-width: 26em; color: rgba(238, 244, 243, .55); }
.foot-tel { display: inline-block; font-family: var(--serif); font-size: 26px; color: var(--paper); margin-top: 8px; letter-spacing: .04em; }
.foot-tel:hover { color: var(--gold); }
.foot-hours { display: block; font-size: 12.5px; color: rgba(238, 244, 243, .45); margin-top: 6px; letter-spacing: .06em; }
.fcol b { display: block; font-size: 13px; letter-spacing: .16em; color: var(--gold); margin-bottom: 14px; font-weight: 600; }
.fcol a { display: block; font-size: 14.5px; padding: 6px 0; color: rgba(238, 244, 243, .72); }
.fcol a:hover { color: var(--paper); }
.legal {
  width: min(var(--maxw), 100% - var(--pad) * 2); margin: 46px auto 0;
  border-top: 1px solid rgba(238, 244, 243, .12); padding-top: 24px;
}
.legal p { font-size: 12.5px; line-height: 1.9; color: rgba(238, 244, 243, .42); margin: 0 0 6px; }
.legal .muted { color: rgba(238, 244, 243, .3); }
.legal a { text-decoration: underline; text-underline-offset: 3px; }

/* ---------------- 搜索 / 分享 ---------------- */
.smodal { position: fixed; inset: 0; z-index: 120; display: flex; justify-content: center; align-items: flex-start; padding: 10vh 16px 16px; }
.smodal[hidden] { display: none; }
.smodal-bg { position: absolute; inset: 0; background: rgba(7, 30, 38, .66); backdrop-filter: blur(3px); }
.smodal-p {
  position: relative; z-index: 1; width: min(720px, 100%);
  background: var(--paper); border: 1px solid var(--copper);
  box-shadow: 0 30px 80px -30px rgba(0, 0, 0, .6);
  padding: 18px;
  max-height: 82vh; display: flex; flex-direction: column;
}
.sform { display: flex; align-items: center; gap: 10px; border-bottom: 1px solid var(--ink); padding-bottom: 12px; }
.sform .ic { width: 22px; height: 22px; color: var(--copper-ink); }
.sform input {
  flex: 1; min-width: 0; border: 0; background: none; outline: none;
  font: inherit; font-size: 19px; color: var(--ink); padding: 6px 2px;
}
.sform input::placeholder { color: var(--muted); }
.sgo {
  border: 0; background: var(--ink); color: var(--paper); font: inherit; font-size: 14px;
  padding: 9px 16px; cursor: pointer; border-radius: 2px;
}
.sclose { border: 0; background: none; color: var(--muted); cursor: pointer; padding: 4px; display: flex; }
.sclose:hover { color: var(--brand-ink); }
.sres { overflow-y: auto; padding-top: 8px; }
.shint { font-size: 14px; color: var(--muted); padding: 18px 4px; margin: 0; }
.sres-i { display: block; padding: 14px 4px; border-bottom: 1px solid var(--line-2); }
.sres-i:hover { background: var(--paper-2); }
.sres-k { font-size: 11.5px; letter-spacing: .14em; color: var(--copper-ink); display: block; margin-bottom: 4px; }
.sres-i b { font-size: 16.5px; display: block; }
.sres-i p { font-size: 13.5px; color: var(--muted); margin: 4px 0 0; line-height: 1.7; }

.share-p { width: min(480px, 100%); }
.share-head { display: flex; align-items: center; justify-content: space-between; border-bottom: 1px solid var(--line); padding-bottom: 12px; }
.share-head b { font-family: var(--serif); font-size: 20px; }
.share-sub { font-size: 13px; color: var(--muted); margin: 12px 0 16px; word-break: break-all; }
.share-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(84px, 1fr)); gap: 10px; }
.share-b {
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  padding: 16px 6px; border: 1px solid var(--line); background: var(--paper-3);
  font: inherit; font-size: 12.5px; color: var(--ink-2); cursor: pointer; border-radius: 2px;
}
.share-b:hover { border-color: var(--copper); color: var(--brand-ink); }
.share-b .ic { width: 22px; height: 22px; }
.share-b .ic-mark {
  width: 22px; height: 22px; display: grid; place-items: center; font-style: normal;
  font-size: 14px; font-weight: 600; line-height: 1; color: var(--copper-ink);
  border: 1px solid currentColor; border-radius: 50%;
}
.share-wx { margin-top: 18px; padding: 14px 16px; background: var(--paper-2); border-left: 2px solid var(--copper); }
.share-wx b { font-size: 13.5px; }
.share-wx p { font-size: 13px; color: var(--muted); margin: 6px 0 0; line-height: 1.8; }
.share-tip { margin: 12px 0 0; font-size: 13px; color: var(--brand-ink); min-height: 18px; }

/* ---------------- 移动底栏 ---------------- */
.mobilebar { display: none; }

/* ---------------- 搜索页 ---------------- */
.sform-page { border-bottom: 1px solid var(--ink); padding-bottom: 14px; margin-bottom: 8px; }
.sform-page input { font-size: 22px; }
.smeta { font-size: 14px; color: var(--muted); margin: 14px 0 26px; }
.sres-list { max-width: 900px; }
.sres-list .sres-i { padding: 20px 0; }
.sres-list .sres-i b { font-family: var(--serif); font-size: 21px; }
.sres-list .sres-i p { font-size: 14.5px; }
.sempty { padding: 30px 0; }
.sempty p { color: var(--muted); }
.sempty .btn { margin-top: 14px; }

.nf { padding: clamp(60px, 10vw, 120px) 0; }
.nf-code { font-family: var(--serif); font-size: clamp(80px, 14vw, 160px); line-height: 1; color: rgba(18, 101, 127, .3); margin: 0 0 8px; }
.nf h1 { font-size: clamp(32px, 4vw, 48px); margin-bottom: 16px; }

.updated { display: none; }
.empty { color: var(--muted); font-size: 15px; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1180px) {
  .nav { gap: 16px; }
  .nav a { font-size: 15px; }
}

@media (max-width: 1080px) {
  .top-in { gap: 18px; }
  .nav { gap: 15px; }
  .nav a { font-size: 14.6px; }
  .patgrid { grid-template-columns: repeat(4, 1fr); }
  .pgrid { grid-template-columns: repeat(2, 1fr); }
  .pgrid-3 { grid-template-columns: repeat(2, 1fr); }
  .scenes { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); row-gap: 32px; }
  .stat:nth-child(3) { border-left: 0; padding-left: 0; }
}

@media (max-width: 860px) {
  body { font-size: 17px; padding-bottom: 64px; }
  .mnav:not([hidden]) { display: grid; }
  .top-in { height: 66px; }
  .nav { display: none; }
  .tel-btn { display: none; }
  .only-m { display: inline-flex; }
  .icon-t { display: none; }
  .brand .mark { width: 34px; height: 34px; }
  .brand-t b { font-size: 19px; }
  .brand-t i { font-size: 10.5px; }
  .hero { padding-inline: var(--pad); }
  .hero-in { grid-template-columns: 1fr; min-height: 0; padding: 30px 0 26px; gap: 18px; }
  .hero-side { display: none; }
  .hero h1 { font-size: clamp(38px, 10.5vw, 54px); }
  .hero-art { order: 2; max-width: 268px; margin-inline: auto; }
  .hero-art-cap { text-align: center; }
  .hero-sm h1 { font-size: clamp(32px, 8.4vw, 44px); }
  .sec-stats { padding-inline: var(--pad); }
  .manifesto { padding-inline: var(--pad); }
  .mani-in { grid-template-columns: 1fr; gap: 22px; }
  .mani-mark { width: 64px; height: 64px; }
  .mani-mark span { font-size: 30px; }
  .feats, .feats-2 { grid-template-columns: 1fr; gap: 0; }
  .ct { grid-template-columns: 1fr; }
  .ctaband { padding-inline: var(--pad); }
  .ctaband-mark { font-size: 180px; right: -20px; opacity: .6; }
  .pd-top { grid-template-columns: 1fr; }
  .pd-fig { order: -1; }
  .foot-in { grid-template-columns: 1fr 1fr; gap: 32px; }
  .fbrand { grid-column: 1 / -1; }
  .mobilebar {
    display: grid; grid-template-columns: repeat(4, 1fr);
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 90;
    background: rgba(238, 244, 243, .97); border-top: 1px solid var(--line);
    padding-bottom: env(safe-area-inset-bottom);
    backdrop-filter: blur(8px);
  }
  .mobilebar a, .mobilebar button {
    display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 3px;
    padding: 9px 0 8px; font-size: 11px; color: var(--ink-2);
    background: none; border: 0; font-family: inherit; cursor: pointer;
  }
  .mobilebar .mb-tel { background: var(--brand); color: #FFFFFF; }
  .mobilebar .ic { width: 20px; height: 20px; }
  .smodal { padding-top: 6vh; }
}

@media (max-width: 620px) {
  :root { --pad: 18px; }
  .pd-fig { padding: 14px 14px 12px; }
  .pd-art { padding: 12px; }
  .pgrid, .pgrid-3, .scenes, .steps { grid-template-columns: 1fr; }
  .patgrid { grid-template-columns: repeat(3, 1fr); gap: 10px; }
  .stats { grid-template-columns: 1fr 1fr; }
  .stat { padding: 6px 16px; }
  .stat-n b { font-size: 44px; }
  .sec-head h2::before { width: 40px; margin-bottom: 16px; }
  .hero-act .btn { width: 100%; }
  .pd-copy .hero-act .btn, .ctaband-act .btn { width: 100%; }
  .cmp thead { display: none; }
  .cmp, .cmp tbody, .cmp tr, .cmp td { display: block; width: 100%; }
  .cmp tr { border-bottom: 1px solid var(--line); padding: 14px 0; }
  .cmp td { border: 0; padding: 6px 0; }
  .cmp td::before {
    content: attr(data-label); display: block; font-size: 11.5px;
    letter-spacing: .12em; color: var(--copper); margin-bottom: 3px;
  }
  .cmp .rowh { width: auto; font-family: var(--serif); font-size: 19px; }
  .ct-item { grid-template-columns: 88px 1fr; gap: 10px; }
  .ct-item a { font-size: 17px; }
  .faq summary { font-size: 16.5px; gap: 14px; }
  .faq-a { padding-right: 0; font-size: 15px; }
  .foot-in { grid-template-columns: 1fr; }
  .share-grid { grid-template-columns: repeat(2, 1fr); }
  .pgroup-head { flex-wrap: wrap; }
  .pgroup-n { margin-left: 0; }
  .legal p { font-size: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: .001ms !important; animation-duration: .001ms !important; }
  .pcard:hover { transform: none; }
}

/* ---------------- 留资表单 ---------------- */
.sec-lead .lead-grid {
  display: grid; grid-template-columns: .94fr 1.06fr;
  gap: clamp(26px, 4vw, 64px); align-items: start;
}
.lead-copy .kick { font-size: 13px; letter-spacing: .2em; color: var(--copper-ink); margin-bottom: 14px; }
.lead-copy h2 { font-family: var(--serif); font-size: clamp(26px, 3.1vw, 38px); line-height: 1.32; letter-spacing: .01em; }
.lead-p { margin-top: 16px; font-size: 17px; line-height: 1.9; color: var(--ink-2); max-width: 30em; }
.lead-pts { list-style: none; margin: 24px 0 0; padding: 0; display: grid; gap: 13px; }
.lead-pts li { position: relative; padding-left: 26px; font-size: 16.5px; line-height: 1.7; color: var(--ink-2); }
.lead-pts li::before {
  content: ""; position: absolute; left: 0; top: .78em;
  width: 12px; height: 1px; background: var(--copper);
}
.lead-tel {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 28px;
  font-family: var(--serif); font-size: clamp(24px, 2.4vw, 30px);
  color: var(--brand-ink); letter-spacing: .04em;
}
.lead-tel .ic { width: 22px; height: 22px; }
.lead-tel:hover { color: #12657F; }

.lead-form {
  background: var(--paper-3); border: 1px solid var(--line);
  padding: clamp(20px, 2.6vw, 34px); position: relative;
}
.lf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.lf { display: block; margin-bottom: 16px; }
.lf > span { display: block; font-size: 13.5px; letter-spacing: .08em; color: var(--muted); margin-bottom: 8px; }
.lf > span em { font-style: normal; }
.lf input, .lf textarea {
  width: 100%; font: inherit; font-size: 17px; line-height: 1.5;
  padding: 13px 14px; background: #fff;
  border: 1px solid var(--line); border-radius: 2px; color: var(--ink);
  transition: border-color .18s, box-shadow .18s;
}
.lf textarea { resize: vertical; min-height: 92px; }
.lf input::placeholder, .lf textarea::placeholder { color: #7C8C90; }
.lf input:focus, .lf textarea:focus {
  outline: none; border-color: var(--copper);
  box-shadow: 0 0 0 3px rgba(26, 135, 173, .18);
}
.lf-submit { width: 100%; margin-top: 4px; }
.lf-note { font-size: 12.5px; line-height: 1.75; color: var(--muted); margin-top: 14px; }
.lf-msg { font-size: 14.5px; line-height: 1.7; margin-top: 12px; }
.lf-msg:empty { display: none; }
.lf-msg.ok { color: var(--ink); border-left: 3px solid var(--brand-deep); padding-left: 12px; }
.lf-msg.err { color: #8A6520; }
.lf-hp { position: absolute; width: 0; height: 0; overflow: hidden; opacity: 0; pointer-events: none; }
.lead-form[aria-busy="true"] { opacity: .72; }
.lead-form .lf-submit[disabled] { cursor: progress; }

/* 产品页内嵌紧凑版 */
.lead-strip { border-top: 1px solid var(--line); padding-top: 34px; }
.lead-strip-p { font-size: 16.5px; line-height: 1.85; color: var(--ink-2); max-width: 46em; margin-bottom: 22px; }
.lead-form-sm .lf-row-3 { grid-template-columns: 1fr 1fr auto; align-items: end; }
.lead-form-sm .lf { margin-bottom: 0; }
.lead-form-sm .lf-submit { width: auto; white-space: nowrap; min-height: 50px; padding: 0 24px; }

@media (max-width: 860px) {
  .sec-lead .lead-grid { grid-template-columns: 1fr; gap: 26px; }
  .lead-tel { margin-top: 20px; }
  .lead-form-sm .lf-row-3 { grid-template-columns: 1fr 1fr; }
  .lead-form-sm .lf-submit { grid-column: 1 / -1; width: 100%; margin-top: 4px; }
}
@media (max-width: 620px) {
  .lf-row { grid-template-columns: 1fr; gap: 0; }
  .lead-form-sm .lf-row-3 { grid-template-columns: 1fr; }
  .lead-form-sm .lf { margin-bottom: 14px; }
  .lead-form-sm .lf-submit { margin-top: 2px; }
}
.lf-done b { display: block; font-family: var(--serif); font-size: 22px; color: var(--ink); margin-bottom: 10px; }
.lf-done p { font-size: 15px; line-height: 1.85; color: var(--muted); }
.lf > span { font-size: 14.5px; }
.lead-form-sm { padding-bottom: 24px; }
.lead-form-sm .lf-note { margin-top: 16px; }
.lead-done-card { display: grid; align-content: center; gap: 4px; }
.lead-done-card b { font-family: var(--serif); font-size: 22px; }
.lead-done-card p { font-size: 15px; line-height: 1.85; color: var(--muted); }
.lead-alert {
  border-left: 3px solid var(--brand); background: rgba(26, 135, 173, .16);
  padding: 12px 16px; font-size: 15px; line-height: 1.75; color: #0B3F4E; margin-bottom: 22px;
}

/* ==== 专属版式 layout-axis ==== */

/* ============================================================
   专属版式 C · 中轴 / 营造法式图版   （斗拱站 dougong）
   双行中轴顶栏；全居中首屏；纵向层叠数字；阶梯出跳产品
   ============================================================ */
:root .top { border-bottom: 1px solid var(--line); }
:root .top-in {
  display: grid; grid-template-columns: 1fr auto 1fr;
  align-items: center; gap: 0 24px; max-width: 1280px;
  height: auto; min-height: 76px;
  padding-top: 12px; padding-bottom: 8px;
}
:root .brand { grid-column: 2; grid-row: 1; justify-self: center; }
:root .top-act { grid-column: 3; grid-row: 1; justify-self: end; }
:root .nav {
  grid-column: 1 / 4; grid-row: 2; justify-self: center;
  margin: 12px 0 0; padding-top: 12px; gap: 40px;
  border-top: 1px solid var(--line); width: 100%; justify-content: center;
}
:root .nav a { font-family: var(--serif); font-size: 16.5px; letter-spacing: .1em; }
:root .nav a[aria-current="page"] { color: var(--brand-deep); }

:root .hero::before {
  background:
    linear-gradient(90deg, transparent calc(50% - .5px), rgba(232,199,122,.16) 50%, transparent calc(50% + .5px)),
    radial-gradient(80% 70% at 50% 30%, rgba(26,135,173,.2), transparent 62%);
}
:root .hero-in,
:root .home .hero-in {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 36px; min-height: 0;
  padding: clamp(64px, 7vw, 104px) 0 clamp(48px, 6vw, 80px);
}
:root .hero-copy { max-width: 840px; order: 1; margin: 0; }
:root .hero .kicker { justify-content: center; }
:root .hero .kicker span { display: none; }
:root .hero h1 { font-size: clamp(44px, 5.6vw, 80px); line-height: 1.2; text-wrap: balance; }
:root .hero .lead { margin: 20px auto 0; max-width: 680px; }
:root .hero-act { justify-content: center; margin-top: 28px; }
:root .hero-note { margin-top: 22px; }
:root .hero-art { order: 2; width: 100%; max-width: 660px; margin: 0 auto; }
:root .hero-art::before,
:root .hero-art::after { display: none; }
:root .hero-side {
  writing-mode: vertical-rl; left: auto; right: 26px; top: 50%;
  transform: translateY(-50%); letter-spacing: .55em; opacity: .5; font-size: 12px;
}
:root .hero::after {
  content: "铝合金斗拱"; writing-mode: vertical-rl; position: absolute;
  left: 26px; top: 50%; transform: translateY(-50%);
  letter-spacing: .55em; font-size: 12px; opacity: .5; color: var(--paper);
}

:root .sec-stats { padding-block: clamp(56px, 6vw, 88px); }
:root .sec-stats .sec-head { text-align: center; }
:root .sec-stats .sec-head h2::before { display: none; }
:root .sec-stats .sec-note { margin-inline: auto; }
:root .stats {
  display: flex; flex-direction: column; align-items: center;
  gap: 0; max-width: 720px; margin-top: 40px;
}
:root .stat {
  width: 100%; display: flex; align-items: baseline; justify-content: space-between;
  gap: 32px; border-left: 0; border-bottom: 1px solid rgba(255,255,255,.3);
  padding: 14px 0; text-align: left;
}
:root .stat:first-child { padding-left: 0; }
:root .stat-n b { font-size: clamp(44px, 5vw, 68px); }
:root .stat-l { margin-top: 0; text-align: right; max-width: 60%; }
:root .stat-l span { margin-top: 4px; }

:root .sec-head { text-align: center; }
:root .sec-head h2::before { display: none; }
:root .sec-note { margin-inline: auto; }
:root .sec { padding-block: clamp(72px, 8vw, 108px); }
:root .pgrid { gap: 22px; padding-bottom: 64px; }
:root .pcard:nth-child(3n+2) { transform: translateY(26px); }
:root .pcard:nth-child(3n+3) { transform: translateY(52px); }
:root .pcard { border-radius: 0; }
:root .patgrid { gap: 12px; }
:root .pat { border-radius: 0; }
:root .btn { border-radius: 0; }

@media (max-width: 1080px) {
  :root .nav { gap: 22px; }
  :root .nav a { font-size: 15px; }
}
@media (max-width: 900px) {
  :root .top-in { display: flex; flex-wrap: wrap; gap: 12px; padding: 12px 0; }
  :root .brand { order: 1; }
  :root .top-act { order: 2; margin-left: auto; }
  :root .nav { display: none; }
  :root .hero-in, :root .home .hero-in { align-items: flex-start; text-align: left; gap: 28px; padding-top: 56px; }
  :root .hero .kicker, :root .hero-act { justify-content: flex-start; }
  :root .hero .lead { margin-left: 0; }
  :root .hero h1 { font-size: clamp(38px, 9.6vw, 60px); }
  :root .hero-side, :root .hero::after { display: none; }
  :root .hero-art { max-width: 100%; }
  :root .sec-head, :root .sec-stats .sec-head { text-align: left; }
  :root .sec-note, :root .sec-stats .sec-note { margin-inline: 0; }
  :root .stat { flex-direction: column; gap: 4px; }
  :root .stat-l { text-align: left; max-width: 100%; }
  :root .pgrid { grid-template-columns: 1fr; padding-bottom: 0; }
  :root .pcard:nth-child(n) { transform: none; }
  :root .patgrid { grid-template-columns: repeat(3, 1fr); }
}

/* 全宽图版（三视图） */
.plate { margin: 0; background: var(--paper-3); border: 1px solid var(--line); padding: clamp(16px, 3vw, 32px); }
.plate .art { width: 100%; height: auto; color: var(--ink-2); }
.plate figcaption { margin-top: 12px; font-size: 13.5px; color: var(--muted); text-align: center; line-height: 1.7; }