/* =========================================================
   泰达华荣装饰 · 全站样式表（楚漆 · 金 · 印 · 当代东方奢华）
   主色：漆黑 #16110D · 骨宣 #F4EFE6 · 描金 #BF9B53 · 朱印 #A8322A
   ========================================================= */
@import "design-tokens.css";

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans); font-weight: 400; font-size: var(--f-base);
  line-height: 1.9; color: var(--text); background: var(--paper);
  -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility;
  overflow-x: clip; /* 兜底防横向溢出，且不破坏 sticky header（clip 不创建滚动容器） */
  overflow-wrap: break-word; word-break: break-word; /* 长串（邮箱/网址）自动换行，避免窄屏溢出 */
}
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: 0; background: none; }
input, select, textarea { font-family: inherit; font-size: var(--f-base); }
::selection { background: var(--gold); color: var(--ink); }
:focus-visible { outline: 3px solid rgba(191,155,83,.6); outline-offset: 2px; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }
.container-narrow { max-width: 900px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: -999px; top: 0; background: var(--seal); color: #fff; padding: 10px 16px; z-index: 300; }
.skip-link:focus { left: 12px; top: 12px; }

/* 滚动显现（尊重 reduced-motion，在 design-tokens 媒体查询内统一归零） */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .9s var(--ease), transform .9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 3. 英文小标签 / 印章 / 回纹分割 ---------- */
.label {
  font-family: var(--font-latin); font-weight: 600; font-size: 14px;
  letter-spacing: .34em; text-transform: uppercase; color: var(--gold);
}
.seal {
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--seal); color: #fff; font-family: var(--font-serif); font-weight: 600;
  line-height: 1; box-shadow: inset 0 0 0 2px rgba(255,255,255,.28);
  border-radius: 3px;
}
.divider { display: flex; align-items: center; justify-content: center; gap: 20px; padding: 0 32px; }
.divider .ln { height: 1px; flex: 1; max-width: 220px; }
.divider .ln.l { background: linear-gradient(90deg, transparent, var(--gold)); }
.divider .ln.r { background: linear-gradient(90deg, var(--gold), transparent); }
.divider svg { width: 52px; height: 24px; flex: none; }
.divider .hw { stroke: var(--gold); stroke-width: 1.6; fill: none; }

/* ---------- 4. 顶部导航（暗场漆器质感） ---------- */
.site-header {
  position: sticky; top: 0; z-index: 200; background: rgba(22,17,13,0);
  transition: background .4s var(--ease), box-shadow .4s var(--ease), border-color .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.solid { background: rgba(22,17,13,.94); backdrop-filter: blur(10px); border-bottom-color: rgba(191,155,83,.32); }
/* 非首页（无暗场 Hero）：header 默认实底，避免透明 header 压在浅色背景上导致导航不可见 */
body.no-hero .site-header { background: rgba(22,17,13,.96); backdrop-filter: blur(10px); border-bottom-color: rgba(191,155,83,.32); }
/* 首页首屏导航：使用深色半透明实底（而非完全透明），确保文字在未滚动、hero 背景未完全覆盖 header 时依然清晰可读；
   同时与暗场 Hero 色调一致，视觉上仍然融为一体。滚动离开 Hero 后 .solid 加深实底，防止后续浅色内容重叠。 */
body:not(.no-hero) .topbar { background: transparent; }
body:not(.no-hero) .site-header {
  background: rgba(22,17,13,.9); backdrop-filter: blur(10px);
  border-bottom-color: rgba(191,155,83,.32); box-shadow: 0 4px 20px rgba(0,0,0,.25);
}
.nav { display: flex; align-items: center; gap: 30px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 13px; margin-right: auto; }
.brand .seal { width: 42px; height: 42px; font-size: 21px; }
.brand b { color: #fff; font-family: var(--font-serif); font-weight: 500; font-size: 1.22rem; letter-spacing: .06em; }
.brand b span { color: var(--gold); }
.nav-links { display: flex; gap: 30px; list-style: none; }
.nav-links a { color: rgba(244,239,230,.82); font-size: 15px; position: relative; padding: 8px 0; transition: color .25s var(--ease); }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: 2px; height: 1px; width: 0; background: var(--gold); transition: width .3s var(--ease); }
.nav-links a:hover, .nav-links a.active { color: #fff; }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
/* 桌面端下拉导航 */
.nav-links li { position: relative; }
.nav-links .has-sub > a::after { content: "▾"; display: inline-block; margin-left: 5px; font-size: 10px; opacity: .65; vertical-align: middle; }
.subnav { position: absolute; top: calc(100% + 10px); left: 50%; transform: translateX(-50%) translateY(8px); min-width: 170px; background: rgba(22,17,13,.96); border: 1px solid rgba(191,155,83,.32); border-radius: 4px; padding: 8px 0; list-style: none; opacity: 0; visibility: hidden; transition: opacity .25s var(--ease), transform .25s var(--ease), visibility .25s; z-index: 210; }
.subnav::before { content: ""; position: absolute; top: -6px; left: 50%; margin-left: -6px; border-left: 6px solid transparent; border-right: 6px solid transparent; border-bottom: 6px solid rgba(22,17,13,.96); }
.nav-links li:hover > .subnav, .nav-links li:focus-within > .subnav, .subnav:hover { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.subnav a { display: block; padding: 8px 18px; font-size: 14px; color: rgba(244,239,230,.82); white-space: nowrap; transition: color .2s, background .2s; }
.subnav a:hover { color: #fff; background: rgba(191,155,83,.12); }
.nav-cta {
  font-family: var(--font-latin); font-weight: 600; letter-spacing: .12em; font-size: 15px;
  color: var(--gold); border: 1px solid rgba(191,155,83,.6); padding: 10px 20px; border-radius: 2px;
  transition: background .25s var(--ease), color .25s var(--ease);
}
.nav-cta:hover { background: var(--gold); color: var(--ink); }
.nav-toggle { display: none; background: none; border: 0; color: #fff; font-size: 26px; cursor: pointer; margin-left: auto; }

/* 保留旧 .main-nav / .logo 定义（兼容历史结构，不参与新版 HTML） */
.main-nav a, .logo-name, .logo-sub, .header-inner, .header-tools { /* 占位，避免未定义告警 */ }

/* ---------- 5. Hero 首屏（暗场漆器 + 回纹水印 + 朱印 + 数据带） ---------- */
/* 让 hero 背景向上延伸至 header 后方，配合透明 header 实现融为一体 */
.hero {
  position: relative; min-height: 92vh; display: flex; align-items: flex-end; overflow: hidden; color: var(--paper);
  margin-top: calc(-1 * var(--header-h)); padding-top: var(--header-h);
  background:
    radial-gradient(120% 90% at 82% 12%, rgba(191,155,83,.16), transparent 52%),
    radial-gradient(60% 60% at 12% 92%, rgba(168,50,42,.18), transparent 60%),
    linear-gradient(155deg, #1d1611 0%, #140f0b 55%, #0d0907 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0; opacity: .06; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='40'%3E%3Cg fill='none' stroke='%23BF9B53' stroke-width='1.4'%3E%3Cpath d='M2 38 V6 H30 V34 H12 V16 H22'/%3E%3Cpath d='M32 6 H58 V38'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 60px 40px;
}
.hero .container { position: relative; z-index: 2; width: 100%; padding-top: calc(var(--header-h) + 56px); padding-bottom: clamp(48px,6vw,80px); }
.hero-seal { position: absolute; top: calc(var(--header-h) + 56px); right: 32px; z-index: 2; width: 74px; height: 74px; font-size: 36px; border-radius: 4px; transform: rotate(-4deg); }
.hero .label { display: block; margin-bottom: 26px; }
.hero h1 { font-family: var(--font-serif); font-weight: 500; font-size: clamp(2.6rem,6.6vw,5rem); line-height: 1.16; color: #fff; max-width: 16ch; letter-spacing: .01em; }
.hero h1 em { font-style: normal; color: var(--gold-soft); }
.hero-lead { margin-top: 30px; max-width: 56ch; font-size: 1.08rem; line-height: 1.95; color: rgba(244,239,230,.78); font-weight: 300; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 40px; }
.hero-stats { display: flex; flex-wrap: wrap; gap: 14px 40px; margin-top: 54px; padding-top: 30px; border-top: 1px solid rgba(191,155,83,.28); font-family: var(--font-serif); font-size: 1.06rem; letter-spacing: .02em; color: rgba(244,239,230,.75); }
.hero-stats b { color: var(--gold); font-weight: 700; font-size: 1.1em; letter-spacing: .01em; font-variant-numeric: tabular-nums; }

/* ---------- 6. 按钮 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 10px; padding: 15px 30px; border-radius: 2px; font-size: 15px; font-weight: 400; letter-spacing: .04em; border: 1px solid transparent; white-space: nowrap; transition: transform .3s var(--ease), background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease); }
.btn-gold { background: var(--gold); color: var(--ink); font-weight: 500; }
.btn-gold:hover { background: var(--gold-soft); transform: translateY(-3px); }
.btn-line { border-color: rgba(244,239,230,.5); color: #fff; }
.btn-line:hover { border-color: var(--gold); color: var(--gold); }
.btn-primary { background: var(--gold); color: var(--ink); font-weight: 500; }
.btn-primary:hover { background: var(--gold-soft); transform: translateY(-3px); }
.btn-ghost { background: transparent; color: var(--heading); border: 1px solid var(--line); }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold); }
.btn-white { background: var(--paper); color: var(--ink); font-weight: 500; }
.btn-white:hover { background: #fff; transform: translateY(-3px); }
.btn-light { background: var(--paper); color: var(--ink); font-weight: 500; }
.btn-light:hover { background: #fff; transform: translateY(-3px); }
.btn-sm { padding: 9px 18px; font-size: 13.5px; }
.btn-lg { padding: 17px 34px; font-size: 16px; }
.btn-block { width: 100%; justify-content: center; }
.link-arrow { display: inline-flex; align-items: center; gap: 8px; color: var(--gold); font-family: var(--font-latin); font-size: 1.25rem; letter-spacing: .04em; transition: gap .3s var(--ease); }
.link-arrow:hover { gap: 14px; }

/* ---------- 7. 区块标题 / 通用区块 ---------- */
.section { padding: clamp(64px,8vw,120px) 0; }
.section-alt { background: var(--paper-2); }
.sec-head { max-width: 820px; margin: 0 auto clamp(36px,4.5vw,60px); text-align: center; }
.sec-head .label { display: block; margin-bottom: 18px; }
.sec-head h2 { font-family: var(--font-serif); font-weight: 500; font-size: clamp(1.9rem,4vw,3rem); color: var(--heading); line-height: 1.25; letter-spacing: .01em; }
.sec-head p { margin-top: 18px; font-size: 1.02rem; color: var(--text); }
.sec-more { text-align: center; margin-top: clamp(40px,5vw,64px); }
.page-head { padding: clamp(76px,9vw,116px) 0 clamp(30px,3.5vw,46px); border-bottom: 1px solid var(--line); }
.page-head h1 { font-family: var(--font-serif); font-weight: 500; font-size: clamp(2rem,4.6vw,3.2rem); color: var(--heading); margin-bottom: 10px; }
.page-head p { color: var(--text); font-size: var(--f-sm); }

/* ---------- 8. 品牌陈述 ---------- */
.statement { padding: clamp(64px,8vw,120px) 0; }
.stmt-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(40px,6vw,90px); align-items: center; }
.stmt-quote { font-family: var(--font-serif); font-weight: 500; font-size: clamp(1.7rem,3.4vw,2.6rem); line-height: 1.5; color: var(--heading); }
.stmt-quote .accent { color: var(--seal); }
.stmt-body p { margin-bottom: 20px; font-size: 1.02rem; }
.stmt-facts { margin-top: 30px; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.stmt-facts div { background: var(--paper); padding: 18px 20px; }
.stmt-facts dt { font-family: var(--font-latin); font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--gold); margin-bottom: 6px; }
.stmt-facts dd { font-size: 14.5px; color: var(--heading); line-height: 1.6; }
.stmt-facts dd small { display: block; margin-top: 4px; font-size: 12px; color: var(--muted); font-family: var(--font-latin); letter-spacing: .04em; }

/* ---------- 9. 服务 · 编辑式索引（大写数字） ---------- */
.svc-index { max-width: 1040px; margin: 0 auto; }
.svc-row { display: grid; grid-template-columns: 130px 1fr auto; gap: 36px; align-items: baseline; padding: 30px 0; border-top: 1px solid var(--line); transition: border-color .3s var(--ease); }
.svc-index .svc-row:last-child { border-bottom: 1px solid var(--line); }
.svc-num { font-family: var(--font-serif); font-weight: 500; font-size: 2.6rem; color: var(--gold); line-height: 1; }
.svc-row h3 { font-family: var(--font-serif); font-weight: 500; font-size: clamp(1.4rem,2.6vw,2rem); color: var(--heading); margin-bottom: 10px; }
.svc-row p { color: var(--text); max-width: 62ch; font-size: 15px; }
.svc-row .go { font-family: var(--font-latin); font-size: 1.6rem; color: var(--gold); transition: transform .3s var(--ease); }
.svc-row:hover { border-top-color: var(--gold); }
.svc-row:hover .go { transform: translateX(10px); }
.svc-row:hover .svc-num { color: var(--seal); }

/* ---------- 10. 案例 · 作品集大图（左右交替） ---------- */
.cases { }
.case-feat { display: grid; grid-template-columns: 1.08fr .92fr; gap: clamp(36px,5vw,84px); align-items: center; margin-bottom: clamp(64px,9vw,120px); }
.case-feat.rev { direction: rtl; }
.case-feat.rev > * { direction: ltr; }
.case-fig { position: relative; aspect-ratio: 4/3; overflow: hidden; background: var(--paper-2); }
.case-fig img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; display: block; z-index: 1; transition: transform 1.1s var(--ease); }
.case-feat:hover .case-fig img { transform: scale(1.05); }
.case-fig .fill { position: absolute; inset: 0; transition: transform 1.1s var(--ease); }
.case-feat:hover .fill { transform: scale(1.05); }
.case-fig::after { content: ""; position: absolute; inset: 14px; border: 1px solid rgba(191,155,83,.45); pointer-events: none; }
.case-fig .ph { position: absolute; inset: 0; }
.ph-a { background: linear-gradient(135deg,#ede6d8,#dcd4c4); }
.ph-b { background: linear-gradient(135deg,#e2e0d6,#cecbc0); }
.ph-c { background: linear-gradient(135deg,#e8e2d4,#d6cfc0); }
.case-fig .wm { position: absolute; inset: 0; opacity: .18; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='64' height='64' viewBox='0 0 24 24'%3E%3Cpath fill='none' stroke='%238A7E6E' stroke-width='1.1' d='M23 19a2 2 0 0 1-2 2H3a2 2 0 0 1-2-2V8a2 2 0 0 1 2-2h4l2-3h6l2 3h4a2 2 0 0 1 2 2z'/%3E%3Ccircle cx='12' cy='13' r='4' fill='none' stroke='%238A7E6E' stroke-width='1.1'/%3E%3C/svg%3E"); background-size: 64px 64px; background-position: center; background-repeat: no-repeat; }
.case-fig .slot { position: absolute; right: 22px; bottom: 22px; z-index: 3; font-family: var(--font-latin); font-size: 12px; letter-spacing: .16em; color: rgba(74,65,57,.55); text-transform: uppercase; }
.case-tag { font-family: var(--font-latin); font-weight: 600; font-size: 13px; letter-spacing: .3em; text-transform: uppercase; color: var(--gold); display: block; margin-bottom: 16px; }
.case-info h3 { font-family: var(--font-serif); font-weight: 500; font-size: clamp(1.5rem,2.8vw,2.1rem); color: var(--heading); line-height: 1.3; margin-bottom: 12px; }
.case-meta { font-family: var(--font-latin); font-size: 1.05rem; letter-spacing: .04em; color: var(--seal); margin-bottom: 16px; }
.case-info p { font-size: 15px; margin-bottom: 22px; max-width: 52ch; }
.cases-more { text-align: center; margin-top: 20px; }

/* 保留旧案例网格类（兼容历史/覆盖区，换肤） */
.matrix-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--s-3); }
.matrix-grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--s-3); }
.matrix-grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: var(--s-3); }
.matrix-card { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md); overflow: hidden; transition: border-color .3s var(--ease), transform .3s var(--ease); }
.matrix-card:hover { border-color: var(--gold); transform: translateY(-4px); }
.mc-index { display: block; padding: var(--s-4) var(--s-4) 0; font-size: var(--f-sm); font-weight: 700; color: var(--gold); letter-spacing: 1px; }
.matrix-card h3 { padding: var(--s-2) var(--s-4) 0; font-size: var(--f-lg); color: var(--heading); font-family: var(--font-serif); font-weight: 500; }
.matrix-card p { padding: var(--s-2) var(--s-4) var(--s-4); color: var(--text); font-size: var(--f-sm); line-height: 1.75; }
.case-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--s-3); }
.case-grid-3 { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--s-3); }
.cc-img { aspect-ratio: 4/3; overflow: hidden; background: var(--ink); position: relative; }
.cc-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.case-card:hover .cc-img img { transform: scale(1.05); }
.case-card { position: relative; padding-bottom: var(--s-3); }
.cc-tag { position: absolute; top: 12px; left: 12px; z-index: 2; background: var(--seal); color: #fff; padding: 4px 12px; border-radius: var(--r-pill); font-size: var(--f-xs); }
.case-card h3 { padding: var(--s-3) var(--s-3) 0; font-size: var(--f-lg); color: var(--heading); font-family: var(--font-serif); font-weight: 500; }
.cc-meta { padding: 6px var(--s-3) 0; color: var(--seal); font-size: var(--f-xs); }
.cc-desc { padding: 6px var(--s-3) 0; color: var(--text); font-size: var(--f-sm); line-height: 1.8; }
.more-link { display: inline-block; margin-top: auto; color: var(--gold); font-size: var(--f-sm); font-weight: 600; }
.more-link:hover { color: var(--seal); }

/* ---------- 11. 承诺 / CTA（暗场 · 与首页 Hero 统一描金回纹纹理） ---------- */
.commit { background: var(--ink); color: var(--paper); padding: clamp(64px,8vw,110px) 0; position: relative; overflow: hidden; }
.commit::before { content: ""; position: absolute; inset: 0; z-index: 0; opacity: .06; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='40'%3E%3Cg fill='none' stroke='%23BF9B53' stroke-width='1.4'%3E%3Cpath d='M2 38 V6 H30 V34 H12 V16 H22'/%3E%3Cpath d='M32 6 H58 V38'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 60px 40px; }
.commit .container { position: relative; z-index: 2; }
.commit-grid { display: grid; grid-template-columns: repeat(4,1fr); margin-top: 60px; }
.commit-item { padding: 0 30px; border-left: 1px solid rgba(191,155,83,.26); }
.commit-item:first-child { border-left: 0; padding-left: 0; }
.commit-no { font-family: var(--font-latin); font-size: 2.4rem; color: var(--gold); line-height: 1; margin-bottom: 16px; }
.commit-item h3 { font-family: var(--font-serif); font-weight: 500; font-size: 1.3rem; color: #fff; margin-bottom: 12px; }
.commit-item p { font-size: 14px; color: rgba(244,239,230,.7); line-height: 1.85; }
.cta-section { background: linear-gradient(155deg,#1d1611,#0d0907); color: var(--paper); text-align: center; padding: clamp(64px,9vw,116px) 0; position: relative; overflow: hidden; }
.cta-section::before { content: ""; position: absolute; inset: 0; z-index: 1; opacity: .5; background: radial-gradient(60% 90% at 50% 0%, rgba(191,155,83,.14), transparent 60%); }
.cta-section::after { content: ""; position: absolute; inset: 0; z-index: 0; opacity: .06; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='40'%3E%3Cg fill='none' stroke='%23BF9B53' stroke-width='1.4'%3E%3Cpath d='M2 38 V6 H30 V34 H12 V16 H22'/%3E%3Cpath d='M32 6 H58 V38'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 60px 40px; }
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { font-family: var(--font-serif); font-weight: 500; font-size: clamp(2rem,4.4vw,3.2rem); color: #fff; margin-bottom: 20px; line-height: 1.3; }
.cta-section p { color: rgba(244,239,230,.78); max-width: 50ch; margin: 0 auto 36px; font-size: 1.05rem; }
.cta-section .tel { font-family: var(--font-latin); font-size: 1.5rem; color: var(--gold); letter-spacing: .06em; }

/* ---------- 12. 服务流程 · 细线索引 ---------- */
.process { padding: clamp(80px,10vw,140px) 0; }
.proc-grid { display: grid; grid-template-columns: repeat(5,1fr); gap: 0; margin-top: 50px; }
.proc-item { padding: 0 22px; border-left: 1px solid var(--line); position: relative; }
.proc-item:first-child { border-left: 0; padding-left: 0; }
.proc-no { font-family: var(--font-latin); font-size: 1.1rem; color: var(--gold); letter-spacing: .1em; margin-bottom: 14px; }
.proc-item h4 { font-family: var(--font-serif); font-weight: 500; font-size: 1.15rem; color: var(--heading); margin-bottom: 8px; }
.proc-item p { font-size: 13.5px; color: var(--text); }

/* ---------- 13. 常见问题 ---------- */
.faq { max-width: 900px; margin: 0 auto; }
.faq-list { max-width: 860px; margin: 0 auto; }
.faq-item { background: var(--paper-2); border: 1px solid var(--line); border-radius: 2px; margin-bottom: 14px; overflow: hidden; }
.faq-item summary { cursor: pointer; list-style: none; padding: 22px 26px; display: flex; align-items: center; justify-content: space-between; gap: 16px; font-family: var(--font-serif); font-size: 1.12rem; color: var(--heading); font-weight: 500; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; color: var(--gold); font-size: 1.7rem; font-weight: 400; flex: none; }
.faq-item[open] summary::after { content: "\2212"; }
.faq-item[open] summary { border-bottom: 1px solid var(--line); }
.faq-body { padding: 0 26px 24px; font-size: 15px; line-height: 1.95; color: var(--text); }
.faq-body a { color: var(--seal); font-weight: 500; }

/* ---------- 14. 服务详情块（换肤） ---------- */
.service-block { padding: clamp(56px,7vw,90px) 0; border-bottom: 1px solid var(--line); }
.service-block:first-of-type { padding-top: 0; }
.sb-head { display: flex; gap: var(--s-3); margin-bottom: var(--s-4); align-items: flex-start; }
.sb-index { flex: none; width: 56px; height: 56px; border-radius: 2px; background: var(--ink); color: var(--gold); font-family: var(--font-latin); font-size: var(--f-xl); font-weight: 600; display: flex; align-items: center; justify-content: center; }
.sb-head h2 { font-size: clamp(1.6rem,3vw,2.2rem); color: var(--heading); margin-bottom: 6px; font-family: var(--font-serif); font-weight: 500; }
.sb-lead { color: var(--text); max-width: 760px; }
.sb-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: var(--s-5); align-items: start; }
.sb-grid--full { grid-template-columns: 1fr; }
.sb-points h3 { font-size: var(--f-lg); color: var(--heading); margin-bottom: var(--s-2); font-family: var(--font-serif); font-weight: 500; }
.sb-points ul { list-style: none; }
.sb-points li { position: relative; padding-left: 22px; padding-bottom: 10px; color: var(--text); font-size: var(--f-sm); line-height: 1.8; }
.sb-points li::before { content: ""; position: absolute; left: 4px; top: 11px; width: 7px; height: 7px; border-radius: 50%; background: var(--gold); }
.sb-side img { width: 100%; border-radius: var(--r-md); box-shadow: var(--sh-1); border: 1px solid var(--line); }
.sb-kw { margin-top: 12px; padding: 12px 14px; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md); color: var(--muted); font-size: var(--f-xs); line-height: 1.7; }
.chip-row { display: flex; flex-wrap: wrap; gap: 8px; margin-top: var(--s-3); }
.chip { display: inline-block; padding: 5px 12px; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-pill); font-size: var(--f-xs); color: var(--text); }

/* ---------- 15. 施工工艺（换肤） ---------- */
.craft-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: var(--s-3); }
.craft-item { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md); padding: var(--s-4); transition: border-color .3s var(--ease), transform .3s var(--ease); }
.craft-item:hover { border-color: var(--gold); transform: translateY(-4px); }
.ci-no { display: inline-block; font-family: var(--font-latin); font-size: var(--f-xl); font-weight: 600; color: var(--gold); margin-bottom: var(--s-1); }
.craft-item h3 { font-size: var(--f-lg); color: var(--heading); margin-bottom: 8px; font-family: var(--font-serif); font-weight: 500; }
.craft-item p { color: var(--text); font-size: var(--f-sm); line-height: 1.8; }
.ci-detail { margin-top: var(--s-2); padding-top: var(--s-2); border-top: 1px dashed var(--line); color: var(--muted)!important; font-size: var(--f-xs)!important; }

/* ---------- 16. 服务流程步骤（换肤） ---------- */
.step-flow { list-style: none; position: relative; padding-left: var(--s-4); }
.step-flow::before { content: ""; position: absolute; left: 22px; top: 8px; bottom: 8px; width: 2px; background: var(--line); }
.step-flow-item { position: relative; display: flex; gap: var(--s-3); padding-bottom: var(--s-4); }
.sfi-no { position: relative; z-index: 2; flex: none; width: 46px; height: 46px; border-radius: 50%; background: var(--ink); color: var(--gold); font-weight: 700; font-size: var(--f-sm); display: flex; align-items: center; justify-content: center; box-shadow: 0 0 0 5px var(--paper); font-family: var(--font-latin); }
.sfi-body h3 { font-size: var(--f-lg); color: var(--heading); margin-bottom: 6px; font-family: var(--font-serif); font-weight: 500; }
.sfi-body p { color: var(--text); font-size: var(--f-sm); line-height: 1.8; }
.sfi-detail { color: var(--muted)!important; font-size: var(--f-xs)!important; margin-top: 6px; }

/* ---------- 17. 新闻列表（换肤） ---------- */
.news-list { display: grid; gap: var(--s-3); }
.news-item { display: grid; grid-template-columns: 92px 1fr; gap: var(--s-3); background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md); padding: var(--s-4); transition: border-color .3s var(--ease), transform .3s var(--ease); }
.news-item:hover { border-color: var(--gold); transform: translateY(-3px); }
.ni-date { text-align: center; background: var(--bg-alt); border-radius: var(--r-md); padding: 10px 0; }
.ni-date b { display: block; color: var(--seal); font-size: var(--f-lg); }
.ni-date span { font-size: var(--f-xs); color: var(--muted); }
.ni-body h3 { font-size: var(--f-lg); color: var(--heading); margin: 8px 0 6px; font-family: var(--font-serif); font-weight: 500; }
.ni-body h3 a:hover { color: var(--seal); }
.ni-body p { color: var(--text); font-size: var(--f-sm); line-height: 1.8; }

/* ---------- 18. 关于我们（换肤） ---------- */
.about-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: var(--s-5); align-items: center; }
.ag-copy p { color: var(--text); line-height: 1.95; margin-bottom: var(--s-3); }
.ag-media img { width: 100%; border-radius: var(--r-md); box-shadow: var(--sh-2); border: 1px solid var(--line); }
.fact-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: var(--s-3); margin-top: var(--s-6); }
.fact-item { display: flex; gap: 14px; align-items: flex-start; padding: var(--s-3); background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md); }
.fact-item b { color: var(--gold); font-size: var(--f-sm); white-space: nowrap; }
.fact-item span { color: var(--text); font-size: var(--f-sm); line-height: 1.7; }
.timeline { list-style: none; position: relative; padding-left: var(--s-4); }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px; background: var(--line); }
.tl-item { position: relative; padding-bottom: var(--s-4); }
.tl-item::before { content: ""; position: absolute; left: calc(-1 * var(--s-4) + 3px); top: 8px; width: 10px; height: 10px; border-radius: 50%; background: var(--gold); box-shadow: 0 0 0 3px var(--paper); }
.tl-item b { display: block; color: var(--heading); font-size: var(--f-lg); margin-bottom: 4px; font-family: var(--font-serif); font-weight: 500; }
.tl-item span { color: var(--text); font-size: var(--f-sm); line-height: 1.8; }

/* ---------- 19. 联系我们（换肤） ---------- */
.contact-grid { display: grid; grid-template-columns: 1.3fr .7fr; gap: var(--s-5); align-items: start; }
.contact-form { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md); padding: var(--s-4); }
.contact-info { display: grid; gap: var(--s-3); }
.ci-block { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md); padding: var(--s-4); }
.ci-block h3 { font-size: var(--f-base); color: var(--heading); margin-bottom: 8px; font-family: var(--font-serif); font-weight: 500; }
.ci-block p { color: var(--text); font-size: var(--f-sm); line-height: 1.75; }
.ci-phone a { color: var(--seal); font-size: var(--f-xl); font-weight: 700; }
.ci-zip { color: var(--muted)!important; font-size: var(--f-xs)!important; }
.ci-maps { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px; }
.ci-maps .btn { padding: 8px 14px; font-size: var(--f-xs); }
.ci-qr-caption {
  color: var(--gold); text-align: center; font-family: var(--font-serif); font-weight: 500;
  font-size: var(--f-base); margin: 0 0 10px;
}
.ci-wechat .qr-image {
  max-width: 220px; margin: 0 auto 14px; border-radius: var(--r-md);
  border: 1.5px solid var(--line); background: var(--paper); overflow: hidden;
}
.ci-wechat .qr-image img { width: 100%; height: auto; display: block; }

/* ---------- 20. 表单 ---------- */
.form-card { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-md); padding: var(--s-4); }
.form-card h3 { font-family: var(--font-serif); font-weight: 500; font-size: var(--f-xl); color: var(--heading); margin-bottom: 6px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-3); }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: var(--s-3); }
.form-group.full { grid-column: 1 / -1; }
.form-group label { font-size: var(--f-sm); color: var(--heading); font-weight: 500; }
.form-group label span { color: var(--seal); }
.form-group input, .form-group textarea { padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--r-sm); background: #fff; color: var(--ink); font-size: var(--f-base); transition: border-color .2s; }
.form-group input:focus, .form-group textarea:focus { outline: none; border-color: var(--gold); }
.radio-row { display: flex; flex-wrap: wrap; gap: 10px; }
.radio-pill { display: inline-flex; align-items: center; gap: 6px; padding: 8px 14px; border: 1px solid var(--line); border-radius: var(--r-pill); cursor: pointer; font-size: var(--f-sm); transition: border-color .2s, color .2s; }
.radio-pill input { accent-color: var(--gold); }
.radio-pill:has(input:checked) { border-color: var(--gold); color: var(--seal); }
.form-submit { margin-top: 4px; }
.form-tip { margin-top: 12px; font-size: var(--f-xs); color: var(--muted); }
.form-success { margin-top: 16px; padding: 14px 16px; border-radius: var(--r-md); background: #eef3e9; border-left: 4px solid var(--c-success); color: #3f5e36; font-size: 14px; }

/* ---------- 21. 实体定义块（GEO 权威锚点，换肤） ---------- */
.entity-def { background: linear-gradient(180deg,#fff 0%,var(--paper-2) 100%); border-bottom: 1px solid var(--line); padding: var(--s-6) 0; }
.ed-lead { display: inline-block; margin: 0 0 var(--s-2); font-size: var(--f-sm); font-weight: 600; letter-spacing: .12em; color: var(--gold); text-transform: uppercase; }
.ed-text { font-size: var(--f-lg); line-height: 1.8; color: var(--heading); max-width: 74ch; margin: 0 0 var(--s-4); }
.ed-facts { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; }
.ed-facts li { background: #fff; padding: 14px 18px; font-size: var(--f-base); color: var(--heading); line-height: 1.7; }
.ed-facts li span { display: block; font-size: var(--f-sm); color: var(--muted); font-weight: 600; letter-spacing: .04em; margin-bottom: 4px; }
.ed-facts li a { color: var(--seal); text-decoration: none; font-weight: 600; }
.ed-facts li a:hover { text-decoration: underline; }
.ed-note { margin-top: var(--s-3); font-size: var(--f-sm); color: var(--muted); line-height: 1.8; }

/* ---------- 22. 企业画像与对比（换肤） ---------- */
.profile-list { list-style: none; margin: 0; padding: 0; }
.profile-list li { padding: 12px 0 12px 20px; position: relative; border-bottom: 1px solid var(--line); line-height: 1.85; font-size: var(--f-base); color: var(--text); }
.profile-list li::before { content: ""; position: absolute; left: 2px; top: 21px; width: 6px; height: 6px; border-radius: 50%; background: var(--gold); }
.profile-list li b { color: var(--heading); }
.diff-list { list-style: none; margin: 0 0 var(--s-3); padding: 0; }
.diff-list li { padding: 14px 18px; border-left: 3px solid var(--gold); background: var(--paper-2); border-radius: 0 8px 8px 0; margin-bottom: 10px; line-height: 1.8; font-size: var(--f-base); color: var(--text); }
.diff-list li b { color: var(--seal); }

/* ---------- 23. 地域服务层（换肤） ---------- */
.area-kicker { font-size: var(--f-sm); font-weight: 600; color: var(--gold); letter-spacing: .06em; margin: 0 0 var(--s-1); }
.lead-para { font-size: var(--f-lg); line-height: 1.75; color: var(--text); max-width: 66ch; margin: 0 0 var(--s-3); }
.area-h2 { font-size: var(--f-xl); color: var(--heading); margin: 0 0 var(--s-3); padding-top: var(--s-2); border-top: 2px solid var(--gold-soft); font-family: var(--font-serif); font-weight: 500; }
.area-pains, .area-fits { list-style: none; margin: 0 0 var(--s-4); padding: 0; display: grid; grid-template-columns: repeat(2,minmax(0,1fr)); gap: 12px; }
.area-pains li, .area-fits li { background: var(--paper-2); border: 1px solid var(--line); border-radius: 10px; padding: 14px 16px; font-size: var(--f-base); line-height: 1.75; color: var(--text); }
.area-pains li b, .area-fits li b { display: block; color: var(--heading); margin-bottom: 4px; }
.area-fits li { border-left: 3px solid var(--gold); }
.area-route { font-size: var(--f-base); color: var(--text); line-height: 1.9; margin: 0 0 var(--s-3); }
.area-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-top: var(--s-2); }

/* ---------- 24. 服务小区覆盖（换肤） ---------- */
.cov-stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 10px; overflow: hidden; margin-top: var(--s-5); }
.cov-stat { background: var(--paper-2); padding: 26px 20px; text-align: center; }
.cov-stat b { display: block; font-family: var(--font-latin); font-size: 2.6rem; color: var(--seal); line-height: 1; }
.cov-stat span { display: block; margin-top: 8px; font-size: var(--f-sm); color: var(--text); }
.cov-sub { font-family: var(--font-serif); font-weight: 500; font-size: var(--f-lg); color: var(--heading); margin: var(--s-5) 0 var(--s-2); }
.cov-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.cov-chip { display: inline-block; padding: 7px 14px; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--r-pill); font-size: var(--f-sm); color: var(--text); transition: border-color .2s, color .2s; }
.cov-chip:hover { border-color: var(--gold); color: var(--seal); }
.cov-chip.cov-region { background: var(--ink); color: var(--gold-soft); border-color: var(--ink); }
.cov-note { margin-top: var(--s-3); font-size: var(--f-sm); color: var(--muted); line-height: 1.8; }

/* ---------- 25. 面包屑 / 顶部工具条（保留定义） ---------- */
.breadcrumb { background: var(--paper-2); border-bottom: 1px solid var(--line); font-size: var(--f-sm); color: var(--muted); }
.breadcrumb .container { padding-top: 14px; padding-bottom: 14px; }
.bc-sep { color: var(--muted); margin: 0 6px; }
.breadcrumb a:hover { color: var(--seal); }
.topbar { background: var(--ink); color: rgba(244,239,230,.82); font-size: var(--f-sm); height: 40px; }
.topbar .container { display: flex; align-items: center; justify-content: space-between; gap: var(--s-2); height: 100%; }
.topbar-left, .topbar-right { display: flex; align-items: center; gap: var(--s-2); }
.topbar .tb-phone { display: inline-flex; align-items: center; gap: 6px; color: #fff; font-weight: 700; }
.topbar .tb-sep { width: 1px; height: 14px; background: rgba(244,239,230,.22); }
.topbar a:hover { color: var(--gold); }
.tb-btn { display: inline-flex; align-items: center; gap: 5px; padding: 4px 12px; border-radius: var(--r-pill); border: 1px solid rgba(244,239,230,.28); font-size: var(--f-sm); color: #fff; }
.tb-btn.tb-btn-solid { background: var(--gold); border-color: var(--gold); color: var(--ink); }

/* ---------- 26. 页脚（暗场 · 与首页 Hero 统一描金回纹纹理） ---------- */
.site-footer { background: var(--ink); color: rgba(244,239,230,.72); padding: clamp(64px,8vw,96px) 0 30px; position: relative; overflow: hidden; }
.site-footer::before { content: ""; position: absolute; inset: 0; z-index: 0; opacity: .06; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='60' height='40'%3E%3Cg fill='none' stroke='%23BF9B53' stroke-width='1.4'%3E%3Cpath d='M2 38 V6 H30 V34 H12 V16 H22'/%3E%3Cpath d='M32 6 H58 V38'/%3E%3C/g%3E%3C/svg%3E");
  background-size: 60px 40px; }
.site-footer .container { position: relative; z-index: 2; }
.footer-top { display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr; gap: 40px; }
.footer-brand .brand { margin-bottom: 20px; }
.footer-brand p { font-size: 14px; line-height: 1.9; max-width: 44ch; margin-bottom: 20px; font-weight: 300; }
.f-contact { list-style: none; display: grid; gap: 9px; font-size: 14px; }
.f-contact b { color: var(--gold); font-weight: 600; margin-right: 10px; font-family: var(--font-latin); letter-spacing: .04em; }
.f-contact a { color: rgba(244,239,230,.9); }
.f-col h4 { font-family: var(--font-serif); color: #fff; font-weight: 500; font-size: 1.08rem; margin-bottom: 16px; padding-bottom: 10px; border-bottom: 1px solid rgba(191,155,83,.26); }
.f-col ul { list-style: none; display: grid; gap: 10px; font-size: 14px; }
.f-col a { color: rgba(244,239,230,.72); transition: color .25s var(--ease); }
.f-col a:hover { color: var(--gold); }
.entity-bar { margin-top: 46px; padding: 22px 24px; border: 1px solid rgba(191,155,83,.3); border-radius: 2px; background: rgba(244,239,230,.03); font-size: 13.5px; line-height: 1.95; color: rgba(244,239,230,.66); }
.entity-bar .tag { color: var(--seal); margin-right: 7px; }
.entity-bar strong { color: var(--gold); }
.footer-bottom { margin-top: 32px; padding-top: 24px; border-top: 1px solid rgba(244,239,230,.12); display: flex; flex-wrap: wrap; gap: 10px 22px; justify-content: space-between; align-items: center; font-size: 13px; color: rgba(244,239,230,.55); }
.footer-bottom a { color: rgba(244,239,230,.7); }
.footer-bottom a:hover { color: var(--gold); }
.beian a { color: var(--gold); }
/* 旧 .f-logo / .f-links / .f-desc / .logo-mark 兼容定义 */
.f-logo { display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.logo-mark { width: 42px; height: 42px; border-radius: 3px; flex: none; background: var(--seal); color: #fff; display: flex; align-items: center; justify-content: center; font-size: var(--f-xl); font-weight: 600; font-family: var(--font-serif); }
.f-desc { font-size: 14px; line-height: 1.9; max-width: 44ch; margin-bottom: 16px; color: rgba(244,239,230,.72); }
.f-links { display: grid; gap: 10px; }
.f-links a { color: rgba(244,239,230,.72); }
.f-links a:hover { color: var(--gold); }

/* ---------- 27. 浮动条（暗场） ---------- */
.float-bar { display: none; position: fixed; left: 0; right: 0; bottom: 0; z-index: 150; background: rgba(22,17,13,.96); border-top: 1px solid rgba(191,155,83,.4); grid-template-columns: repeat(4,1fr); }
.float-bar a { display: flex; flex-direction: column; align-items: center; gap: 3px; padding: 10px 4px; color: rgba(244,239,230,.9); font-size: 12px; }
.float-bar a b { font-size: 17px; }
.float-bar a.hi { color: var(--gold); font-weight: 500; }

/* ---------- 28. 404 / 站点地图（换肤） ---------- */
.notfound-h1 { text-align: center; color: var(--heading); margin-bottom: var(--s-2); font-family: var(--font-serif); font-weight: 500; }
.notfound-code { font-family: var(--font-latin); font-size: 96px; color: var(--seal); text-align: center; line-height: 1; margin-top: var(--s-2); }
.notfound-actions { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: var(--s-4); }
.sitemap-list { list-style: none; }
.sitemap-list li { padding: 10px 0; border-bottom: 1px solid var(--line); }
.sitemap-tip { margin-top: var(--s-3); color: var(--muted); font-size: var(--f-sm); }

/* ====================== 响应式 ====================== */
@media (max-width: 1000px) {
  .stmt-grid { grid-template-columns: 1fr; }
  .case-feat, .case-feat.rev { grid-template-columns: 1fr; direction: ltr; }
  .case-feat .case-fig { order: -1; }
  .commit-grid { grid-template-columns: 1fr 1fr; }
  .commit-item { border-left: 0; padding-left: 0; margin-bottom: 34px; }
  .proc-grid { grid-template-columns: 1fr 1fr; }
  .proc-item { border-left: 0; padding-left: 0; margin-bottom: 30px; }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .matrix-grid-4, .matrix-grid-3, .matrix-grid, .case-grid-3, .case-grid, .craft-grid { grid-template-columns: repeat(2,1fr); }
  .sb-grid { grid-template-columns: 1fr; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .cov-stats { grid-template-columns: 1fr; }
}
@media (max-width: 760px) {
  .container { padding: 0 22px; }
  .nav-links, .nav-cta { display: none; }
  .nav-toggle { display: block; margin-left: auto; }
  .nav.open .nav-links { display: flex; flex-direction: column; position: absolute; top: var(--header-h); left: 0; right: 0; background: rgba(22,17,13,.97); padding: 20px 24px; gap: 16px; border-bottom: 1px solid rgba(191,155,83,.3); }
  .nav.open .nav-links li { width: 100%; }
  .nav.open .nav-cta { display: inline-block; position: absolute; top: var(--header-h); right: 24px; }
  .nav.open .subnav { position: static; opacity: 1; visibility: visible; transform: none; border: 0; background: rgba(244,239,230,.08); padding: 8px 0 8px 18px; margin-top: 8px; display: flex; flex-direction: column; gap: 6px; }
  .nav.open .subnav::before { display: none; }
  .nav.open .subnav a { padding: 6px 0; font-size: 14px; color: rgba(244,239,230,.75); }
  .nav.open .has-sub > a::after { content: none; }
  .hero-seal { width: 58px; height: 58px; font-size: 28px; top: 96px; right: 22px; }
  .svc-row { grid-template-columns: 64px 1fr; gap: 18px; }
  .svc-row .go { display: none; }
  .float-bar { display: grid; }
  body { padding-bottom: 60px; }
  /* 顶部工具条：收起次要信息，仅保留电话与核心入口，避免窄屏溢出 */
  .tb-hide { display: none; }
  .topbar { overflow: hidden; }
  .topbar .container { gap: 10px; }
  .tb-phone { white-space: nowrap; }
  /* 小屏细体中文偏淡难读，提重到 400 保证清晰 */
  .hero-lead { font-weight: 400; font-size: 1.02rem; line-height: 1.8; }
  .footer-brand p { font-weight: 400; }
}
@media (max-width: 640px) {
  .matrix-grid-4, .matrix-grid-3, .matrix-grid, .craft-grid, .case-grid-3, .case-grid, .fact-grid, .ed-facts, .area-pains, .area-fits { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 1fr; }
  .ni-date { display: flex; align-items: center; gap: 10px; padding: 8px 12px; }
  .ni-date b { font-size: var(--f-base); }
  .form-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .sb-head { flex-direction: column; gap: var(--s-2); }
  .sb-index { width: 48px; height: 48px; }
  .notfound-code { font-size: 64px; }
}

/* ---------- 小屏手机（≤480，覆盖 320–414 主流机型） ---------- */
@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .section, .statement, .commit, .cta-section, .entity-def { padding: clamp(44px,11vw,56px) 0; }
  .page-head { padding: clamp(64px,16vw,84px) 0 clamp(26px,7vw,36px); }
  /* 仍残留的两列区块在小屏改为单列，保证文字完整、不挤压 */
  .commit-grid { grid-template-columns: 1fr; gap: 0; }
  .commit-item { border-top: 1px solid rgba(191,155,83,.22); border-left: 0; padding: 22px 0 0; margin-bottom: 0; }
  .commit-item:first-child { border-top: 0; padding-top: 0; }
  .proc-grid { grid-template-columns: 1fr; }
  .proc-item { border-top: 1px solid var(--line); border-left: 0; padding: 22px 0 0; margin-bottom: 0; }
  .proc-item:first-child { border-top: 0; padding-top: 0; }
  .footer-top { grid-template-columns: 1fr; gap: 28px; }
  .footer-bottom { flex-direction: column; align-items: flex-start; gap: 8px; }
  /* 首屏数据带：缩小列间距，整条更易读 */
  .hero-stats { gap: 10px 22px; font-size: 1rem; }
  .hero-actions { gap: 12px; }
  .hero-actions .btn { flex: 1 1 auto; }
  /* 工艺索引序号与标题仍并排，但缩小序号列 */
  .svc-row { grid-template-columns: 48px 1fr; gap: 14px; }
  .svc-num { font-size: 2rem; }
  /* 表单与卡片内边距收紧 */
  .contact-form, .form-card, .ci-block { padding: 20px 16px; }
  .ci-wechat .qr-image { max-width: 180px; }
  .float-bar a { font-size: 11px; }
  .float-bar a b { font-size: 15px; }
}

/* ---------- 超小屏（≤360，老款/折叠外屏） ---------- */
@media (max-width: 360px) {
  .container { padding: 0 16px; }
  .hero h1 { font-size: clamp(1.9rem, 8vw, 2.4rem); }
  .cta-section h2 { font-size: clamp(1.7rem, 7.5vw, 2.2rem); }
  .page-head h1 { font-size: clamp(1.7rem, 7.5vw, 2.2rem); }
}