/* ==========================================================================
   上海赫菱电梯 · 品牌官网样式
   设计基调：深墨底 + 香槟金点缀 + 朱红主色（品牌三角标同色）
   轻奢 / 大气 / 简洁，PC + 移动端全响应
   ========================================================================== */

/* ---------- 1. 变量与重置 ---------- */
:root {
  --ink: #0d0d0f;
  --ink-2: #16161a;
  --ink-3: #1f1f25;
  --ink-4: #2a2a32;
  --paper: #ffffff;
  --paper-2: #f7f6f3;
  --paper-3: #eeebe5;
  --line: #e4e0d8;
  --line-dark: rgba(255, 255, 255, .12);

  --text: #1a1a1e;
  --text-2: #56565f;
  --text-3: #8a8a95;
  --on-dark: #f5f3ef;
  --on-dark-2: rgba(245, 243, 239, .72);
  --on-dark-3: rgba(245, 243, 239, .48);

  --red: #d0202a;
  --red-d: #a8151e;
  --gold: #c8a86a;
  --gold-l: #e0c895;
  --gold-d: #a8842f;

  --radius: 4px;
  --radius-lg: 8px;
  --shadow-s: 0 1px 2px rgba(13, 13, 15, .05), 0 4px 12px rgba(13, 13, 15, .05);
  --shadow-m: 0 6px 24px rgba(13, 13, 15, .08);
  --shadow-l: 0 18px 50px rgba(13, 13, 15, .14);

  --wrap: 1280px;
  --wrap-narrow: 1080px;
  --ease: cubic-bezier(.22, .61, .36, 1);

  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-serif: "Songti SC", "Noto Serif SC", "Source Han Serif SC", "Source Han Serif CN", "STSong", Georgia, serif;
}

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* 移动端保险：彻底杜绝离屏抽屉式导航（translateX(100%)）带来的横向溢出/横向滚动条，
     使用 clip 而非 hidden，避免生成滚动容器，从而不影响 sticky 顶栏。 */
  overflow-x: clip;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--paper);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, picture, svg, video { max-width: 100%; }
/* picture 默认穿透为 contents，让 <picture> 内的 img 直接应用父级尺寸规则；
   但带 class 的 picture（如 .hero__media、.case-card__media）本身是媒体容器，
   必须恢复为块级元素，否则其上的 position/aspect-ratio 等规则会失效。 */
picture { display: contents; }
picture[class] { display: block; }
picture[class] img { width: 100%; height: 100%; object-fit: cover; }
img { height: auto; border: 0; }
svg { display: block; }

a { color: inherit; text-decoration: none; transition: color .25s var(--ease), opacity .25s var(--ease); }
a:hover { color: var(--red); }

h1, h2, h3, h4 { margin: 0; font-weight: 600; line-height: 1.28; letter-spacing: .01em; }
h1 { font-size: clamp(1.9rem, 3.4vw, 2.9rem); }
h2 { font-size: clamp(1.45rem, 2.4vw, 2.1rem); }
h3 { font-size: clamp(1.08rem, 1.5vw, 1.28rem); }
p { margin: 0 0 1em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
dl, dt, dd, figure, blockquote { margin: 0; }
table { border-collapse: collapse; width: 100%; }
button { font: inherit; cursor: pointer; }
code { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .92em; background: rgba(13,13,15,.06); padding: .12em .4em; border-radius: 3px; }

::selection { background: var(--red); color: #fff; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 999;
  background: var(--ink); color: #fff; padding: 10px 18px;
}
.skip-link:focus { left: 12px; top: 12px; }

/* ---------- 2. 布局工具 ---------- */
.wrap {
  width: 100%;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 clamp(20px, 4vw, 48px);
}

.sec { padding: clamp(56px, 7vw, 108px) 0; }
.sec--alt { background: var(--paper-2); }
.sec--pain, .sec--cases, .sec--know { background: var(--paper); }

.sec-head { max-width: 780px; margin: 0 auto clamp(34px, 4.4vw, 60px); text-align: center; }
.sec-head--left { margin-left: 0; text-align: left; }
.sec-head--row {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 24px;
  max-width: none; text-align: left;
}
.sec-head--row > div { max-width: 720px; }
.sec-sub { color: var(--text-2); font-size: 1.02rem; margin: 14px 0 0; }
.sec-more { text-align: center; margin: clamp(28px, 3.4vw, 44px) 0 0; }

.eyebrow {
  font-family: var(--font-serif);
  font-size: .74rem;
  letter-spacing: .28em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 12px;
  font-weight: 600;
}
.sec--alt .eyebrow { color: #a8853f; }

.link-more { color: var(--red); font-weight: 600; display: inline-flex; align-items: center; gap: 6px; }
.link-more span { transition: transform .25s var(--ease); }
.link-more:hover span { transform: translateX(4px); }

/* ---------- 3. 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 26px; border: 0; border-radius: var(--radius);
  font-size: .96rem; font-weight: 600; letter-spacing: .04em;
  background: var(--ink); color: #fff; cursor: pointer;
  transition: all .28s var(--ease); white-space: nowrap;
}
.btn:hover { color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-m); }
.btn--red { background: var(--red); }
.btn--red:hover { background: var(--red-d); }
.btn--ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn--ghost:hover { color: var(--red); border-color: var(--red); box-shadow: none; }
.btn--outline { background: rgba(255,255,255,.06); color: #fff; border: 1px solid rgba(255,255,255,.5); backdrop-filter: blur(4px); }
.btn--outline:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn--sm { padding: 8px 16px; font-size: .86rem; }
.btn--lg { padding: 15px 34px; font-size: 1.02rem; }
.btn--block { width: 100%; }

/* ---------- 4. 顶栏与页头 ---------- */
.topbar {
  background: var(--ink); color: var(--on-dark-2);
  font-size: .82rem; letter-spacing: .02em;
  padding-top: env(safe-area-inset-top, 0);
}
.topbar__inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: 38px; }
.topbar__item { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.topbar__item b { color: var(--on-dark-2); font-weight: 600; }
.topbar__right { display: flex; align-items: center; gap: 22px; }
.topbar a { color: var(--gold-l); font-weight: 600; }
.topbar .topbar__tel { color: #fff; font-size: 1.06rem; font-weight: 700; letter-spacing: .01em; }
.topbar .topbar__tel:hover { color: #fff; text-decoration: underline; }

.site-header {
  position: sticky; top: 0; z-index: 120;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s var(--ease);
}
.site-header.is-stuck { box-shadow: var(--shadow-s); }
.site-header__inner {
  display: flex; align-items: center; gap: 20px;
  height: 74px;
}
/* 品牌区：完全对齐上海三菱电梯官网布局 ——
   上排：红色徽标 + 黑色公司名，同行、等高、上下平齐；
   下排：深灰斜体广告语，两端对齐铺满，宽度与上排等宽，整体呈规整长方形。 */
.brand {
  --brand-name-size: 1.8rem;
  display: inline-flex; flex-direction: column; align-items: stretch;
  gap: 7px; flex-shrink: 0; text-decoration: none;
}
.brand__row {
  display: flex; align-items: center; gap: 4px;
  font-size: var(--brand-name-size); line-height: 1;
}
.brand__logo {
  /* 高度 = 公司名字号，与「上海赫菱电梯」同行、等高、上下平齐 */
  flex: 0 0 auto; display: block; height: 1.02em; width: auto;
  filter: drop-shadow(0 2px 5px rgba(208,32,42,.16));
  transition: transform .2s var(--ease);
}
.brand__name {
  font-family: var(--font-sans);
  font-size: 1em; font-weight: 400; line-height: 1;
  letter-spacing: 0; white-space: nowrap;
  color: #141414;
}
.brand__slogan {
  display: flex; justify-content: space-between;
  font-family: var(--font-sans); font-style: italic;
  font-size: .9rem; font-weight: 500; line-height: 1.2; letter-spacing: 0;
  color: #878787; white-space: nowrap;
}
.brand__slogan i { font-style: italic; }
.brand__slogan-sp { flex: 0 0 auto; width: .85em; }
.brand:hover .brand__logo { transform: translateY(-1px); }

.site-header__cta { display: flex; gap: 10px; flex-shrink: 0; margin-left: auto; }

.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(4px, 1.1vw, 18px); }
.primary-nav a {
  display: block; padding: 8px 4px; font-size: .95rem; font-weight: 500;
  white-space: nowrap; flex-shrink: 0;
  border-bottom: 2px solid transparent; transition: all .25s var(--ease);
}
.primary-nav a:hover, .primary-nav a.is-active { color: var(--red); border-bottom-color: var(--red); }
.site-header__cta { margin-left: clamp(10px, 1.6vw, 22px); }

.nav-toggle {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 42px; height: 42px; padding: 0 9px; margin-left: auto;
  background: transparent; border: 1px solid var(--line); border-radius: var(--radius);
}
.nav-toggle span { display: block; height: 2px; background: var(--ink); border-radius: 2px; transition: .3s var(--ease); }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 5. 首页 Banner ---------- */
/* ---------- 4. 全屏 Banner ---------- */
.hero {
  position: relative; min-height: min(78vh, 700px);
  display: flex; align-items: flex-end;
  background: var(--ink); overflow: hidden;
}
/* picture 全局为 display:contents，此处需恢复为块级定位容器，否则绝对定位失效、img 会撑高 Hero */
.hero__media { display: block; position: absolute; inset: 0; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; object-position: center 42%; }
.hero__scrim {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(13,13,15,.62) 0%, rgba(13,13,15,.30) 38%, rgba(13,13,15,.88) 100%),
    linear-gradient(90deg, rgba(13,13,15,.80) 0%, rgba(13,13,15,.46) 45%, rgba(13,13,15,.06) 78%);
}
.hero__inner { position: relative; z-index: 2; padding-bottom: clamp(46px, 6vw, 86px); padding-top: clamp(60px, 9vw, 120px); color: #fff; }
.hero__eyebrow {
  font-family: var(--font-serif); font-size: .82rem; letter-spacing: .3em;
  color: var(--gold-l); margin: 0 0 20px; text-transform: uppercase;
}
.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 6.2vw, 5rem);
  letter-spacing: .1em; line-height: 1.14; margin: 0 0 20px;
  text-shadow: 0 4px 30px rgba(0,0,0,.4);
}
/* 桌面端：两短句正常内联成一行（与旧版一致） */
.hero__line { display: inline; }
.hero__sub { font-size: clamp(1rem, 1.6vw, 1.24rem); color: rgba(255,255,255,.88); max-width: 640px; margin-bottom: 20px; }
.hero__sub .hs-l { display: inline; }
.hero__tags { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 30px; }
.hero__tags span {
  font-size: .84rem; letter-spacing: .16em; padding: 6px 16px;
  border: 1px solid rgba(200,168,106,.5); color: var(--gold-l); border-radius: 100px;
}
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 46px; }
.hero__facts {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px; background: rgba(255,255,255,.16);
  border-top: 1px solid rgba(255,255,255,.16); border-bottom: 1px solid rgba(255,255,255,.16);
}
.hero__facts li { background: rgba(13,13,15,.32); padding: 18px 20px; backdrop-filter: blur(6px); }
.hero__facts b { display: block; font-size: clamp(1.3rem, 2.2vw, 1.75rem); color: var(--gold-l); font-family: var(--font-serif); letter-spacing: .04em; }
.hero__facts span { font-size: .84rem; color: var(--on-dark-2); }

/* ---------- 6. 痛点 ---------- */
.pain-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(18px, 2.2vw, 30px); }
.pain-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: clamp(26px, 3vw, 40px); position: relative; overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.pain-card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 3px; height: 0;
  background: linear-gradient(180deg, var(--red), var(--gold)); transition: height .45s var(--ease);
}
.pain-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-m); border-color: var(--paper-3); }
.pain-card:hover::before { height: 100%; }
.pain-card__idx { font-family: var(--font-serif); font-size: 2.4rem; color: var(--paper-3); font-weight: 700; margin: 0 0 6px; line-height: 1; }
.pain-card h3 { margin-bottom: 18px; }
.pain-card__before, .pain-card__after { font-size: .95rem; position: relative; padding-left: 62px; }
.pain-card__before { color: var(--text-3); margin-bottom: 12px; }
.pain-card__before::before {
  content: "装之前"; position: absolute; left: 0; top: .28em;
  font-size: .74rem; color: var(--text-3); border: 1px solid var(--line); padding: 1px 7px; border-radius: 3px;
}
.pain-card__after { color: var(--text); }
.pain-card__after::before {
  content: "装之后"; position: absolute; left: 0; top: .28em;
  font-size: .74rem; color: #fff; background: var(--red); padding: 2px 7px; border-radius: 3px;
}

/* ---------- 7. 产品卡片 ---------- */
.prod-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(20px, 2.4vw, 34px); }
.prod-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-l); }
.prod-card__media { display: block; position: relative; aspect-ratio: 4 / 5; overflow: hidden; background: var(--ink); }
.prod-card__media img { width: 100%; height: 100%; object-fit: contain; background: var(--ink); transition: transform .7s var(--ease); }
.prod-card:hover .prod-card__media img { transform: scale(1.05); }.prod-card__badge {
  position: absolute; left: 0; right: 0; bottom: 0;
  background: linear-gradient(0deg, rgba(13,13,15,.9), transparent);
  color: #fff; font-size: .88rem; padding: 34px 20px 16px; letter-spacing: .02em;
}
.prod-card__body { padding: 24px 26px 28px; display: flex; flex-direction: column; flex: 1; }
.prod-card__body h3 { margin-bottom: 10px; }
.prod-card__body p { color: var(--text-2); font-size: .95rem; flex: 1; }

/* ---------- 8. 优势 ---------- */
.sec--adv { background: var(--ink); color: var(--on-dark); }
.adv-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(16px, 2vw, 26px); }
.adv-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.sec--adv .sec-head h2 { color: #fff; }
.sec--adv .sec-sub { color: var(--on-dark-2); }
.adv-card {
  border: 1px solid var(--line-dark); border-radius: var(--radius-lg);
  padding: clamp(24px, 2.6vw, 34px); background: rgba(255,255,255,.025);
  transition: background .35s var(--ease), border-color .35s var(--ease), transform .35s var(--ease);
}
.adv-card:hover { background: rgba(255,255,255,.06); border-color: rgba(200,168,106,.5); transform: translateY(-4px); }
.adv-card__icon { display: block; width: 46px; height: 46px; margin-bottom: 20px; color: var(--gold-l); }
.adv-card__icon .ico { width: 100%; height: 100%; }
.adv-card h3 { color: #fff; margin-bottom: 10px; }
.adv-card p { color: var(--on-dark-2); font-size: .94rem; margin: 0; }

/* 白色背景下的优势卡片 */
.notfound .adv-card, .sec:not(.sec--adv) .adv-card { }
.sec:not(.sec--adv) .adv-card { background: var(--paper); border-color: var(--line); }
.sec:not(.sec--adv) .adv-card:hover { background: var(--paper-2); border-color: var(--gold); }
.sec:not(.sec--adv) .adv-card h3 { color: var(--text); }
.sec:not(.sec--adv) .adv-card p { color: var(--text-2); }
.sec:not(.sec--adv) .adv-card__icon { color: var(--red); }

/* ---------- 9. 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(18px, 2.2vw, 28px); }
.case-grid--all { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.case-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .4s var(--ease), box-shadow .4s var(--ease);
}
.case-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-m); }
.case-card__media { display: block; position: relative; aspect-ratio: 3 / 4; overflow: hidden; background: var(--ink); }
.case-card__media img { width: 100%; height: 100%; object-fit: contain; background: var(--ink); transition: transform .7s var(--ease); }
.case-card:hover .case-card__media img { transform: scale(1.05); }
.case-card__tag {
  position: absolute; top: 14px; left: 14px;
  background: rgba(208,32,42,.94); color: #fff;
  font-size: .76rem; padding: 4px 12px; border-radius: 100px; letter-spacing: .06em;
}
.case-card__body { padding: 22px 22px 26px; display: flex; flex-direction: column; flex: 1; }
.case-card__body h3 { font-size: 1.06rem; margin-bottom: 6px; }
.case-card__city { color: var(--gold); font-size: .84rem; letter-spacing: .08em; margin-bottom: 10px; }
.case-card__body p { color: var(--text-2); font-size: .92rem; flex: 1; }

/* ---------- 10. 折叠面板 ---------- */
.fold { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); overflow: hidden; }
.fold--wide { max-width: var(--wrap-narrow); margin: 40px auto 0; }
.fold > summary {
  padding: 18px 24px; font-weight: 600; cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  background: var(--paper-2); color: var(--text); transition: background .25s var(--ease);
}
.fold > summary::-webkit-details-marker { display: none; }
.fold > summary::after { content: "+"; font-size: 1.3rem; color: var(--red); font-weight: 400; }
.fold[open] > summary::after { content: "−"; }
.fold > summary:hover { background: var(--paper-3); }
.fold__body { padding: 26px 24px; border-top: 1px solid var(--line); }
.fold__note { font-size: .88rem; color: var(--text-3); margin: 16px 0 0; }

/* 知识卡片 */
.know-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.know-card { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); overflow: hidden; }
.know-card > summary {
  list-style: none; cursor: pointer; padding: 20px 24px; display: flex; align-items: center; gap: 14px;
  transition: background .25s var(--ease);
}
.know-card > summary::-webkit-details-marker { display: none; }
.know-card > summary::before {
  content: "Q"; flex-shrink: 0; width: 28px; height: 28px; border-radius: 50%;
  background: var(--red); color: #fff; font-size: .82rem; font-weight: 700;
  display: grid; place-items: center;
}
.know-card > summary::after { content: "+"; margin-left: auto; color: var(--red); font-size: 1.2rem; }
.know-card[open] > summary::after { content: "−"; }
.know-card > summary:hover { background: var(--paper-2); }
.know-card__q { font-weight: 600; font-size: 1rem; }
.know-card__a { padding: 0 24px 22px 66px; color: var(--text-2); font-size: .95rem; }
.know-card__a p { margin: 0; }

/* FAQ */
.faq-list { max-width: var(--wrap-narrow); margin: 0 auto; display: grid; gap: 12px; }
.faq-list--two { max-width: none; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; align-items: start; }
.faq-item { border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper); overflow: hidden; }
.faq-item > summary {
  list-style: none; cursor: pointer; padding: 18px 52px 18px 22px; position: relative;
  font-weight: 600; font-size: .98rem; transition: background .25s var(--ease);
}
.faq-item > summary::-webkit-details-marker { display: none; }
.faq-item > summary::after {
  content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%);
  color: var(--red); font-size: 1.3rem; font-weight: 400;
}
.faq-item[open] > summary::after { content: "−"; }
.faq-item > summary:hover { background: var(--paper-2); }
.faq-item__body { padding: 0 22px 20px; color: var(--text-2); font-size: .95rem; border-top: 1px solid var(--line); padding-top: 16px; }
.faq-item__body p { margin: 0; }

/* ---------- 11. 信任 ---------- */
.sec--trust { background: var(--paper-2); }
.trust-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(18px, 2.2vw, 28px); margin-bottom: clamp(34px, 4vw, 54px); }
.trust-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(26px, 3vw, 38px); text-align: center; }
.trust-card__icon { display: block; width: 48px; height: 48px; margin: 0 auto 18px; color: var(--red); }
.trust-card__icon .ico { width: 100%; height: 100%; }
.trust-card h3 { margin-bottom: 10px; }
.trust-card p { color: var(--text-2); font-size: .94rem; margin: 0; }

.trust-area {
  background: var(--ink); color: var(--on-dark); border-radius: var(--radius-lg);
  padding: clamp(28px, 3.4vw, 46px); margin-bottom: clamp(34px, 4vw, 54px);
}
.trust-area h3 { color: var(--gold-l); font-family: var(--font-serif); letter-spacing: .1em; margin-bottom: 12px; }
.trust-area p { color: var(--on-dark-2); margin-bottom: 22px; }
.area-chips { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line-dark); }
.area-chips li {
  background: var(--ink-2); padding: 18px 20px; font-size: .96rem;
  display: flex; align-items: baseline; justify-content: space-between; gap: 8px;
}
.area-chips b { color: var(--gold-l); font-size: 1.5rem; font-family: var(--font-serif); }

.testi-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.testi {
  background: var(--paper); border: 1px solid var(--line); border-left: 3px solid var(--gold);
  border-radius: var(--radius); padding: 26px 28px;
}
.testi p { color: var(--text); font-size: .97rem; margin-bottom: 16px; }
.testi footer { display: flex; align-items: baseline; gap: 12px; }
.testi footer b { font-size: .94rem; }
.testi footer span { font-size: .84rem; color: var(--text-3); }

/* ---------- 12. 表单 ---------- */
.lead-form { background: var(--ink); color: var(--on-dark); padding: clamp(50px, 6vw, 96px) 0; }
.lead-form__wrap { display: grid; grid-template-columns: 1fr 1.15fr; gap: clamp(30px, 4.4vw, 72px); align-items: start; }
.lead-form__intro h2 { color: #fff; margin-bottom: 16px; }
.lead-form__sub { color: var(--on-dark-2); font-size: 1.02rem; margin-bottom: 24px; }
.lead-form__points { display: grid; gap: 10px; margin-bottom: 26px; }
.lead-form__points li { position: relative; padding-left: 26px; color: var(--on-dark-2); font-size: .95rem; }
.lead-form__points li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 12px; height: 6px; border-left: 2px solid var(--gold-l); border-bottom: 2px solid var(--gold-l);
  transform: rotate(-45deg);
}
.lead-form__hotline { color: var(--on-dark-2); font-size: .95rem; }
.lead-form__hotline a { color: var(--gold-l); font-weight: 700; font-size: 1.1rem; }

.lead-form__form {
  background: var(--paper); border-radius: var(--radius-lg); padding: clamp(24px, 3vw, 38px);
  color: var(--text); box-shadow: var(--shadow-l);
}
.lead-form--compact .lead-form__form { box-shadow: var(--shadow-m); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: .9rem; font-weight: 600; margin-bottom: 8px; }
.form-field .req { color: var(--red); }
.form-field input, .form-field select, .form-field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius);
  font-family: inherit; font-size: .96rem; color: var(--text); background: var(--paper);
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.form-field textarea { resize: vertical; min-height: 88px; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: 0; border-color: var(--red); box-shadow: 0 0 0 3px rgba(208,32,42,.1);
}
.form-field input.is-invalid, .form-field select.is-invalid { border-color: var(--red); background: #fff6f6; }
.field-error { color: var(--red); font-size: .82rem; margin: 6px 0 0; min-height: 0; }
.form-agree { display: flex; align-items: flex-start; gap: 10px; font-size: .88rem; color: var(--text-2); margin: 6px 0 18px; }
.form-agree input { margin-top: .3em; accent-color: var(--red); }
.form-agree a { color: var(--red); text-decoration: underline; }
.form-note { font-size: .82rem; color: var(--text-3); margin: 14px 0 0; }
.form-status { font-size: .9rem; margin: 12px 0 0; min-height: 0; }
.form-status.is-error { color: var(--red); }
.form-status.is-ok { color: #1a7f4b; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }
.form-fallback { margin-top: 18px; padding: 18px; border: 1px dashed var(--line); border-radius: var(--radius); background: var(--paper-2); }
.form-fallback__title { font-size: .9rem; font-weight: 600; margin-bottom: 12px; }
.form-fallback__actions { display: flex; gap: 10px; flex-wrap: wrap; margin: 0; }

/* ---------- 13. CTA 条 ---------- */
.cta-band { background: linear-gradient(120deg, var(--ink-2), var(--ink-4)); color: #fff; padding: clamp(40px, 5vw, 62px) 0; }
.cta-band__inner { display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: var(--on-dark-2); margin: 0; }
.cta-band__actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 14. 页脚 ---------- */
.site-footer { background: var(--ink); color: var(--on-dark-2); padding-top: clamp(46px, 5vw, 72px); }
.footer-main {
  display: grid; grid-template-columns: 1.7fr 1fr 1fr 1fr 1.5fr;
  gap: clamp(22px, 3vw, 44px); padding-bottom: clamp(34px, 4vw, 54px);
  border-bottom: 1px solid var(--line-dark);
}
.footer-brand .brand { margin-bottom: 18px; }
.brand--footer .brand__name { color: #fff; }
.brand--footer .brand__slogan { color: rgba(255,255,255,.85); }
.brand--footer .brand__logo { filter: drop-shadow(0 2px 5px rgba(0,0,0,.35)); }
.footer-slogan { font-family: var(--font-serif); color: var(--gold-l); letter-spacing: .18em; font-size: .96rem; margin-bottom: 14px; }
.footer-desc { font-size: .9rem; color: var(--on-dark-3); margin-bottom: 14px; }
.footer-area { font-size: .86rem; color: var(--on-dark-3); margin: 0; }
.footer-col h3 { color: #fff; font-size: 1rem; margin-bottom: 18px; letter-spacing: .06em; }
.footer-col ul { display: grid; gap: 10px; }
.footer-col a { font-size: .9rem; color: var(--on-dark-2); }
.footer-col a:hover { color: var(--gold-l); }
.footer-nap { gap: 12px; }
.footer-nap li { font-size: .88rem; line-height: 1.6; }
.footer-nap .k { display: block; color: var(--on-dark-3); font-size: .78rem; letter-spacing: .06em; }
.footer-nap .v { color: var(--on-dark); }
.footer-nap .v a { color: var(--gold-l); font-weight: 600; }
.footer-bottom {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px;
  padding: 24px 0 30px; font-size: .84rem; color: var(--on-dark-3);
}
.footer-copy, .footer-meta, .footer-links { margin: 0; }
.footer-meta { display: flex; gap: 20px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 18px; }
.footer-links a:hover { color: var(--gold-l); }

/* ---------- 15. 浮动操作 ---------- */
.float-actions {
  position: fixed; right: 18px; bottom: 26px; z-index: 100;
  display: flex; flex-direction: column; gap: 10px;
}
.float-btn {
  width: 54px; height: 54px; border-radius: 50%;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 2px;
  background: var(--paper); color: var(--text-2); box-shadow: var(--shadow-m);
  transition: all .28s var(--ease); border: 1px solid var(--line);
}
.float-btn svg { width: 20px; height: 20px; fill: currentColor; }
.float-btn span { font-size: .62rem; letter-spacing: .04em; }
.float-btn:hover { transform: translateY(-3px) scale(1.04); box-shadow: var(--shadow-l); }
.float-btn--tel { background: var(--red); color: #fff; border-color: var(--red); }
.float-btn--tel:hover { color: #fff; }
.float-btn--quote { background: var(--ink); color: #fff; border-color: var(--ink); }
.float-btn--quote:hover { color: #fff; }
.float-btn--top[hidden] { display: none; }

/* ---------- 16. 内页 Hero ---------- */
.page-hero { position: relative; background: var(--ink); color: #fff; overflow: hidden; }
.page-hero--compact { padding: clamp(46px, 6vw, 84px) 0; background: linear-gradient(120deg, var(--ink), var(--ink-3)); }
.page-hero--product { min-height: min(64vh, 560px); display: flex; align-items: flex-end; }
.page-hero--product .page-hero__bg { position: absolute; inset: 0; }
.page-hero--product .page-hero__bg img { width: 100%; height: 100%; object-fit: cover; }
.page-hero__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(13,13,15,.68), rgba(13,13,15,.88));
}
.page-hero__inner { position: relative; z-index: 2; padding: clamp(40px, 5vw, 70px) 0; }
.page-hero--compact .page-hero__inner { padding: 0; }
.page-hero h1 { color: #fff; font-family: var(--font-serif); letter-spacing: .08em; margin-bottom: 16px; }
.page-hero__sub { color: var(--on-dark-2); max-width: 800px; font-size: 1.04rem; margin: 0; }
.page-hero__actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 28px; }
.policy-updated { color: var(--on-dark-3); font-size: .86rem; margin-top: 18px; }

/* ---------- 17. 面包屑 ---------- */
.breadcrumb { background: var(--paper-2); border-bottom: 1px solid var(--line); font-size: .86rem; color: var(--text-3); }
.breadcrumb ol { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 13px 0; }
.breadcrumb a:hover { color: var(--red); }
.breadcrumb .sep { color: var(--line); }
.breadcrumb [aria-current] { color: var(--text); }

/* ---------- 18. 产品列表行 ---------- */
.prod-list { display: grid; gap: clamp(40px, 5.4vw, 86px); }
.prod-row { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(26px, 4vw, 64px); align-items: center; }
.prod-row--rev .prod-row__media { order: 2; }
.prod-row__media { border-radius: var(--radius-lg); overflow: hidden; background: var(--ink); max-height: 620px; }
.prod-row__media img { width: 100%; height: 100%; max-height: 620px; object-fit: cover; }
.prod-row__body h2 { margin-bottom: 12px; }
.prod-row__tagline { font-family: var(--font-serif); color: var(--gold); letter-spacing: .06em; font-size: 1.04rem; margin-bottom: 14px; }
.prod-row__desc { color: var(--text-2); margin-bottom: 22px; }
.prod-row__points { display: grid; gap: 12px; margin-bottom: 26px; }
.prod-row__points li { position: relative; padding-left: 20px; font-size: .95rem; color: var(--text-2); }
.prod-row__points li::before {
  content: ""; position: absolute; left: 0; top: .58em; width: 7px; height: 7px;
  background: var(--red); border-radius: 50%;
}
.prod-row__points b { color: var(--text); margin-right: 8px; }
.prod-row__actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- 19. 轿厢展厅 ---------- */
.cabin-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(14px, 1.8vw, 24px); }
.cabin-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.cabin-card:hover { transform: translateY(-5px); box-shadow: var(--shadow-m); }
.cabin-card__media { display: block; aspect-ratio: 2 / 3; overflow: hidden; background: #fff; padding: 8px; }
.cabin-card__media img { width: 100%; height: 100%; object-fit: contain; transition: transform .6s var(--ease); }
.cabin-card:hover .cabin-card__media img { transform: scale(1.04); }
.cabin-card__body { padding: 18px 18px 22px; }
.cabin-card__code { font-size: .76rem; letter-spacing: .1em; color: var(--text-3); margin-bottom: 6px; }
.cabin-card__code b { color: var(--red); }
.cabin-card__body h3 { font-size: 1rem; margin-bottom: 8px; }
.cabin-card__wall, .cabin-card__feat { font-size: .84rem; color: var(--text-2); margin: 0 0 4px; }
.cabin-card__feat { color: var(--gold); }

/* 材质网格 */
.mat-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
.mat-item { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; background: var(--paper-2); }
.mat-item img { width: 100%; max-height: 320px; object-fit: contain; background: var(--paper); padding: 10px; }
.mat-item figcaption { padding: 14px 16px; display: grid; gap: 6px; }
.mat-item figcaption b { font-size: .92rem; }
.mat-item figcaption span { font-size: .84rem; color: var(--text-2); }

/* 表格 */
.table-wrap { overflow-x: auto; }
.spec-table { font-size: .92rem; min-width: 520px; }
.spec-table caption { text-align: left; font-weight: 600; padding-bottom: 12px; color: var(--text-2); }
.spec-table th, .spec-table td { border: 1px solid var(--line); padding: 12px 16px; text-align: left; vertical-align: top; }
.spec-table thead th { background: var(--paper-2); font-weight: 600; }
.spec-table tbody th { background: var(--paper-2); font-weight: 600; width: 22%; white-space: nowrap; }

/* ---------- 20. 说明块 ---------- */
.explain-block { max-width: var(--wrap-narrow); margin: 0 auto clamp(40px, 5vw, 66px); }
.explain-block h2 { margin-bottom: 18px; }
.explain-block__lead { font-size: 1.06rem; color: var(--text-2); margin-bottom: 26px; }

.visual-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 2.6vw, 34px); }
.visual-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.visual-item { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: var(--paper); }
.visual-item img { width: 100%; max-height: 480px; object-fit: cover; }
.visual-item svg { width: 100%; height: auto; display: block; aspect-ratio: 3 / 2; }
.visual-item figcaption { padding: 22px 24px; display: grid; gap: 8px; }
.visual-item figcaption b { font-size: 1.02rem; }
.visual-item figcaption span { font-size: .92rem; color: var(--text-2); }
.scan-preview {
  display: flex; gap: clamp(20px, 3vw, 40px); align-items: center; flex-wrap: wrap;
  background: var(--paper); border: 1px solid var(--line);
  border-radius: var(--radius-lg); padding: clamp(20px, 3vw, 34px);
  margin-bottom: clamp(28px, 4vw, 48px);
}
.scan-preview__figure { flex: 0 0 auto; margin: 0; }
.scan-preview__figure picture, .scan-preview__figure img { display: block; }
.scan-preview__figure img {
  width: auto; height: auto; max-height: 360px; max-width: 100%;
  object-fit: contain; border-radius: var(--radius);
  background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-s);
}
.scan-preview__text { flex: 1 1 280px; min-width: 260px; }
.scan-preview__text h3 { margin: 6px 0 10px; font-size: 1.3rem; line-height: 1.3; }
.scan-preview__text p { color: var(--text-2); margin-bottom: 16px; }

.subtype-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(18px, 2.2vw, 30px); }
.subtype-card { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: var(--paper); display: flex; flex-direction: column; }
.subtype-card__media { display: grid; gap: 6px; background: var(--ink); padding: 6px; }
.subtype-card__media img { width: 100%; height: auto; display: block; border-radius: 6px; background: #fff; }
.subtype-card__body { padding: 20px 22px 24px; }
.subtype-card__body h3 { font-size: 1.15rem; margin-bottom: 8px; }
.subtype-card__body p { color: var(--text-2); font-size: .92rem; }

.safety-list-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(18px, 2.2vw, 30px); }
.safety-sub { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 22px 24px; background: var(--paper); }
.safety-sub h3 { font-size: 1.1rem; margin-bottom: 12px; }
.safety-list { display: grid; gap: 12px; }
.safety-list li { display: grid; gap: 4px; padding-bottom: 12px; border-bottom: 1px dashed var(--line); }
.safety-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.safety-list b { color: var(--ink); font-weight: 700; }
.safety-list span { color: var(--text-2); font-size: .88rem; }

/* ---------- 20b. 观光电梯实景图集 ---------- */
.pano-gallery { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 26px); }
.pano-item {
  position: relative; margin: 0; overflow: hidden;
  border: 1px solid var(--line); border-radius: var(--radius-lg);
  background: var(--ink);
}
.pano-item img { width: 100%; aspect-ratio: 4 / 5; object-fit: contain; background: var(--paper-2); display: block; transition: transform .8s var(--ease); }
.pano-item:hover img { transform: scale(1.045); }
.pano-item figcaption {
  position: absolute; left: 0; right: 0; bottom: 0;
  padding: 40px 20px 18px; color: #fff; font-size: .92rem; letter-spacing: .02em;
  background: linear-gradient(180deg, rgba(13,13,15,0) 0%, rgba(13,13,15,.82) 100%);
}
.pano-item::after {
  content: ''; position: absolute; inset: 0; border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(200,168,106,.16); pointer-events: none;
}

/* ---------- 21. 安全 ---------- */
.safety-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 26px); }
.safety-grid--full { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.safety-card {
  border: 1px solid var(--line); border-radius: var(--radius-lg); background: var(--paper);
  padding: clamp(22px, 2.6vw, 32px); position: relative;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s var(--ease);
}
.safety-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); border-color: var(--gold); }
.safety-card__num {
  position: absolute; right: 20px; top: 16px;
  font-family: var(--font-serif); font-size: 1.6rem; color: var(--paper-3); font-weight: 700;
}
.safety-card__icon { display: block; width: 40px; height: 40px; color: var(--red); margin-bottom: 16px; }
.safety-card__icon .ico { width: 100%; height: 100%; }
.safety-card h3 { margin-bottom: 8px; font-size: 1.06rem; }
.safety-card__plain {
  font-family: var(--font-serif); color: var(--red); font-size: .94rem;
  padding-bottom: 12px; margin-bottom: 12px; border-bottom: 1px dashed var(--line);
}
.safety-card p:last-child { color: var(--text-2); font-size: .92rem; margin: 0; }

.layer-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(18px, 2.4vw, 30px); }
.layer-card {
  background: var(--paper); border: 1px solid var(--line); border-top: 3px solid var(--red);
  border-radius: var(--radius); padding: clamp(24px, 3vw, 36px);
}
.layer-card__no { font-size: .8rem; letter-spacing: .16em; color: var(--gold); display: block; margin-bottom: 10px; }
.layer-card h3 { margin-bottom: 10px; }
.layer-card p { color: var(--text-2); font-size: .94rem; margin: 0; }

/* 流程 */
.flow-flow { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.flow-flow--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.flow-step { background: var(--paper); padding: clamp(22px, 2.6vw, 32px); }
.flow-step__no { font-family: var(--font-serif); font-size: 1.7rem; color: var(--gold); display: block; margin-bottom: 10px; line-height: 1; }
.flow-step h3 { font-size: 1.04rem; margin-bottom: 10px; }
.flow-step p { color: var(--text-2); font-size: .9rem; margin: 0; }

/* 资质 */
.cert-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 24px); }
.cert-card {
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg);
  padding: 26px 26px 28px; display: flex; flex-direction: column; gap: 8px;
}
.cert-card__icon { width: 38px; height: 38px; color: var(--gold); }
.cert-card__icon svg { width: 100%; height: 100%; }
.cert-card h3 { font-size: 1.02rem; }
.cert-card p { color: var(--text-2); font-size: .9rem; margin: 0; }
.cert-note { text-align: center; color: var(--text-3); font-size: .88rem; margin-top: 26px; }

/* ---------- 22. 场景 / 适配 ---------- */
.scene-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 26px); margin-bottom: clamp(28px, 3.4vw, 44px); }
.scene-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(24px, 2.8vw, 34px); }
.scene-card h3 { margin-bottom: 10px; color: var(--red); }
.scene-card p { color: var(--text-2); font-size: .95rem; margin: 0; }

.fit-box { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(26px, 3.2vw, 42px); }
.fit-box h3 { margin-bottom: 20px; }
.fit-list { display: grid; gap: 14px; margin-bottom: 20px; }
.fit-list li { display: grid; grid-template-columns: 140px 1fr; gap: 20px; padding-bottom: 14px; border-bottom: 1px dashed var(--line); font-size: .95rem; }
.fit-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.fit-list b { color: var(--text); }
.fit-list span { color: var(--text-2); }
.fit-note { color: var(--text-3); font-size: .88rem; margin: 0; }

/* ---------- 23. 价格 ---------- */
.price-panel { display: grid; grid-template-columns: 1fr 1.2fr; gap: 0; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.price-panel__left { background: var(--ink); color: #fff; padding: clamp(30px, 3.6vw, 48px); }
.price-panel__label { color: var(--on-dark-2); font-size: .92rem; margin-bottom: 10px; }
.price-panel__range { font-family: var(--font-serif); font-size: clamp(1.5rem, 2.4vw, 2rem); color: var(--gold-l); letter-spacing: .04em; margin-bottom: 4px; }
.price-panel__unit { color: var(--on-dark-3); font-size: .86rem; margin-bottom: 22px; }
.price-panel__note { color: var(--on-dark-2); font-size: .94rem; margin-bottom: 26px; }
.price-panel__right { padding: clamp(30px, 3.6vw, 48px); background: var(--paper); }
.price-panel__right h3 { margin-bottom: 20px; }
.factor-list { display: grid; gap: 16px; }
.factor-list > div { padding-bottom: 16px; border-bottom: 1px dashed var(--line); }
.factor-list > div:last-child { border-bottom: 0; padding-bottom: 0; }
.factor-list dt { font-weight: 600; margin-bottom: 6px; font-size: .96rem; }
.factor-list dd { color: var(--text-2); font-size: .92rem; margin: 0; }

.factor-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 26px); }
.factor-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(24px, 2.8vw, 34px); }
.factor-card__no { font-family: var(--font-serif); font-size: 1.6rem; color: var(--paper-3); display: block; margin-bottom: 8px; line-height: 1; font-weight: 700; }
.factor-card h3 { margin-bottom: 10px; font-size: 1.06rem; }
.factor-card p { color: var(--text-2); font-size: .93rem; margin: 0; }
.factor-card--wide { grid-column: 1 / -1; background: var(--paper-2); }

.price-table-wrap { overflow-x: auto; margin-bottom: clamp(30px, 3.6vw, 46px); }
.price-table { font-size: .93rem; min-width: 780px; }
.price-table caption { text-align: left; font-weight: 600; padding-bottom: 12px; color: var(--text-2); }
.price-table th, .price-table td { border: 1px solid var(--line); padding: 14px 16px; text-align: left; vertical-align: top; }
.price-table thead th { background: var(--ink); color: var(--gold-l); font-weight: 600; }
.price-table tbody th { background: var(--paper-2); font-weight: 600; white-space: nowrap; }
.price-table tbody tr:hover { background: var(--paper-2); }

.price-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(18px, 2.2vw, 28px); }
.price-card { border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(24px, 2.8vw, 34px); background: var(--paper); display: flex; flex-direction: column; }
.price-card h3 { margin-bottom: 12px; }
.price-card__range { font-family: var(--font-serif); font-size: 1.4rem; color: var(--red); margin-bottom: 10px; }
.price-card__note { color: var(--text-2); font-size: .92rem; }
.price-card__list { display: grid; gap: 8px; margin: 16px 0 22px; flex: 1; }
.price-card__list li { position: relative; padding-left: 18px; font-size: .9rem; color: var(--text-2); }
.price-card__list li::before { content: ""; position: absolute; left: 0; top: .62em; width: 6px; height: 6px; background: var(--gold); border-radius: 50%; }
.price-disclaimer { color: var(--text-3); font-size: .86rem; margin: clamp(26px, 3vw, 36px) 0 0; text-align: center; }

/* ---------- 24. 选型自测 ---------- */
.quiz { max-width: 860px; margin: 0 auto; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(26px, 3.4vw, 44px); box-shadow: var(--shadow-s); }
.quiz__progress { height: 4px; background: var(--paper-3); border-radius: 4px; overflow: hidden; margin-bottom: 30px; }
.quiz__progress span { display: block; height: 100%; background: linear-gradient(90deg, var(--red), var(--gold)); transition: width .4s var(--ease); }
.quiz__step { border: 0; padding: 0; margin: 0; }
.quiz__step legend { font-size: 1.14rem; font-weight: 600; margin-bottom: 22px; display: flex; align-items: center; gap: 12px; }
.quiz__no { font-family: var(--font-serif); color: var(--red); font-size: 1.4rem; }
.quiz__options { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.quiz__fields { display: flex; flex-direction: column; gap: 20px; }
.quiz__field { display: flex; flex-direction: column; gap: 6px; }
.quiz__field > label { font-size: .94rem; font-weight: 600; color: var(--ink); }
.quiz__input-wrap { position: relative; display: flex; align-items: center; }
.quiz__field input[type="number"] {
  width: 100%; padding: 12px 66px 12px 14px; font-size: 1rem; font-family: var(--font-sans);
  border: 1px solid var(--line); border-radius: var(--radius); background: #fff; color: var(--ink);
  transition: border-color .2s, box-shadow .2s;
}
.quiz__field input[type="number"]:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 3px rgba(208,32,42,.12); }
.quiz__field input.is-invalid { border-color: #d0202a; background: #fff5f5; }
.quiz__unit { position: absolute; right: 14px; color: var(--text-3); font-size: .88rem; pointer-events: none; }
.quiz__field-hint { font-size: .8rem; color: var(--text-3); margin: 0; }
.quiz__group { display: flex; flex-direction: column; gap: 10px; }
.quiz__q { font-size: .95rem; font-weight: 600; color: var(--ink); margin: 0; }
.quiz__group .quiz__options { margin-top: 2px; }
.quiz__group--warn .quiz__options { animation: quizWarn .5s ease; }
.quiz__group--warn .quiz__q { color: #d0202a; }
.quiz__status { margin: 18px 0 0; min-height: 1.2em; font-size: .9rem; color: var(--text-2); }
.quiz__status.is-error { color: #d0202a; }
.quiz__status.is-ok { color: #1f8a4c; }
.quiz__option { position: relative; display: block; }
.quiz__option input { position: absolute; opacity: 0; }
.quiz__option span {
  display: block; padding: 16px 20px; border: 1px solid var(--line); border-radius: var(--radius);
  font-size: .96rem; transition: all .25s var(--ease); cursor: pointer;
}
.quiz__option input:checked + span { border-color: var(--red); background: #fff6f6; color: var(--red); font-weight: 600; }
.quiz__option:hover span { border-color: var(--gold); }
.quiz__result h3 { margin-bottom: 14px; }
.quiz__result-type { font-family: var(--font-serif); font-size: 1.7rem; color: var(--red); margin-bottom: 12px; }
.quiz__result-reason { color: var(--text-2); }
.quiz__result-hint { font-size: .88rem; color: var(--text-3); }
.quiz__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 22px; }
.quiz__nav { margin: 24px 0 0; }
.quiz__step-nav { display: flex; gap: 12px; justify-content: flex-end; margin-top: 22px; }
.quiz__step--warn { animation: quizWarn .5s ease; }
@keyframes quizWarn { 0%,100%{transform:translateX(0)} 25%{transform:translateX(-6px)} 75%{transform:translateX(6px)} }

/* 报价页侧栏 */
.quote-side { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: clamp(26px, 4vw, 56px); align-items: center; margin-top: clamp(38px, 4.6vw, 62px); }
.quote-side__img { border-radius: var(--radius-lg); overflow: hidden; background: var(--ink); }
.quote-side__img img { width: 100%; max-height: 540px; object-fit: cover; }
.quote-side__txt h3 { margin-bottom: 16px; }
.quote-side__txt p { color: var(--text-2); }
.quote-side__list { display: grid; gap: 10px; margin-top: 20px; }
.quote-side__list li { position: relative; padding-left: 20px; font-size: .95rem; color: var(--text-2); }
.quote-side__list li::before { content: ""; position: absolute; left: 0; top: .58em; width: 7px; height: 7px; background: var(--red); border-radius: 50%; }

/* ---------- 25. 案例详情 ---------- */
.info-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.info-grid > div { background: var(--paper); padding: 22px 24px; }
.info-grid dt { font-size: .82rem; color: var(--text-3); letter-spacing: .06em; margin-bottom: 6px; }
.info-grid dd { font-weight: 600; font-size: .98rem; margin: 0; }

.two-col { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(20px, 2.6vw, 34px); }
.prose-card { background: var(--paper); border: 1px solid var(--line); border-left: 3px solid var(--gold); border-radius: var(--radius); padding: clamp(26px, 3.2vw, 42px); }
.prose-card h2 { margin-bottom: 18px; }
.prose-card p { color: var(--text-2); margin: 0; }

.gallery-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 24px); }
.gallery-item { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: var(--paper); }
.gallery-item img { width: 100%; aspect-ratio: 3 / 4; object-fit: contain; background: var(--paper-2); }
.gallery-item figcaption { padding: 16px 18px; font-size: .88rem; color: var(--text-2); }
.gallery-note { text-align: center; color: var(--text-3); font-size: .86rem; margin-top: 24px; }

.summary-box { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(30px, 3.6vw, 50px); max-width: var(--wrap-narrow); margin: 0 auto; }
.summary-box h2 { margin-bottom: 18px; }
.summary-box__highlight { font-family: var(--font-serif); color: var(--red); font-size: 1.14rem; padding-left: 18px; border-left: 3px solid var(--red); margin-bottom: 20px; }
.summary-box p { color: var(--text-2); }
.summary-box__actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 26px; }

.next-case { text-align: center; padding: clamp(20px, 2.6vw, 34px); background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-lg); }
.next-case a { font-family: var(--font-serif); font-size: 1.14rem; color: var(--text); display: inline-flex; align-items: center; gap: 8px; }
.next-case a:hover { color: var(--red); }

/* ---------- 26. 关于页 ---------- */
.about-intro { display: grid; grid-template-columns: 1.25fr 0.75fr; gap: clamp(28px, 4vw, 64px); align-items: center; }
.about-intro__txt h2 { margin-bottom: 20px; }
.about-intro__txt p { color: var(--text-2); }
.about-intro__img { border-radius: var(--radius-lg); overflow: hidden; background: var(--ink); }
.about-intro__img img { width: 100%; max-height: 520px; object-fit: cover; }
.about-intro__img figcaption { padding: 14px 18px; font-size: .84rem; color: var(--text-3); background: var(--paper); }

.num-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(16px, 2vw, 26px); margin-bottom: clamp(30px, 3.6vw, 46px); }
.num-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(24px, 2.8vw, 34px); text-align: center; }
.num-card__value { display: flex; align-items: baseline; justify-content: center; gap: 4px; margin-bottom: 8px; }
.num-card__value b { font-family: var(--font-serif); font-size: clamp(2rem, 3.4vw, 2.8rem); color: var(--red); line-height: 1; }
.num-card__value span { font-size: .94rem; color: var(--text-2); }
.num-card h3 { font-size: 1rem; margin-bottom: 6px; }
.num-card p { font-size: .88rem; color: var(--text-3); margin: 0; }

.factory-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.factory-card { background: var(--paper); padding: 24px 22px; }
.factory-card h3 { font-size: 1.04rem; margin-bottom: 6px; }
.factory-card__role { font-size: .78rem; color: var(--gold); letter-spacing: .08em; margin-bottom: 8px; }
.factory-card p:last-child { font-size: .88rem; color: var(--text-2); margin: 0; }
.factory-note { text-align: center; color: var(--text-3); font-size: .88rem; margin-top: 24px; }

.value-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(18px, 2.4vw, 32px); }
.value-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(28px, 3.2vw, 42px); }
.value-card__no { font-family: var(--font-serif); font-size: 2rem; color: var(--paper-3); display: block; margin-bottom: 10px; line-height: 1; font-weight: 700; }
.value-card h3 { font-family: var(--font-serif); font-size: 1.4rem; letter-spacing: .1em; margin-bottom: 12px; color: var(--red); }
.value-card p { color: var(--text-2); font-size: .95rem; margin: 0; }

.team-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(18px, 2.4vw, 30px); }
.team-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(26px, 3vw, 38px); }
.team-card h3 { margin-bottom: 12px; }
.team-card p { color: var(--text-2); font-size: .94rem; margin: 0; }

/* NAP 块 */
.nap-block { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; }
.nap-block--wide { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.nap-block > div { background: var(--paper); padding: 18px 22px; display: grid; grid-template-columns: 110px 1fr; gap: 16px; align-items: baseline; }
.nap-block dt { font-size: .86rem; color: var(--text-3); }
.nap-block dd { font-weight: 600; font-size: .96rem; margin: 0; word-break: break-word; }
.nap-block .nap-tel { color: var(--red); font-size: 1.14rem; font-family: var(--font-serif); letter-spacing: .04em; }

/* ---------- 27. 服务页 ---------- */
.timeline { position: relative; max-width: var(--wrap-narrow); margin: 0 auto; padding-left: 22px; }
.timeline::before { content: ""; position: absolute; left: 21px; top: 8px; bottom: 8px; width: 2px; background: linear-gradient(180deg, var(--red), var(--gold)); }
.timeline__item { position: relative; padding: 0 0 clamp(24px, 3vw, 38px) 62px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__marker {
  position: absolute; left: 0; top: 2px;
  width: 44px; height: 44px; border-radius: 50%; background: var(--paper);
  border: 2px solid var(--red); display: grid; place-items: center;
  font-family: var(--font-serif); font-weight: 700; color: var(--red); font-size: 1rem;
}
.timeline__body h3 { display: flex; align-items: baseline; gap: 14px; flex-wrap: wrap; margin-bottom: 8px; }
.timeline__body h3 em { font-style: normal; font-size: .82rem; color: var(--gold); letter-spacing: .06em; font-weight: 500; }
.timeline__body p { color: var(--text-2); font-size: .95rem; margin: 0; }

.warranty-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(18px, 2.4vw, 30px); margin-bottom: clamp(30px, 3.6vw, 46px); }
.warranty-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(26px, 3vw, 38px); }
.warranty-card__no { font-family: var(--font-serif); font-size: 1.6rem; color: var(--gold); display: block; margin-bottom: 10px; line-height: 1; }
.warranty-card h3 { margin-bottom: 10px; }
.warranty-card p { color: var(--text-2); font-size: .95rem; margin: 0; }

.hotline-box {
  background: var(--ink); color: #fff; border-radius: var(--radius-lg);
  padding: clamp(28px, 3.4vw, 46px); display: flex; align-items: center; justify-content: space-between; gap: 26px; flex-wrap: wrap;
}
.hotline-box h3 { color: #fff; margin-bottom: 10px; }
.hotline-box p { color: var(--on-dark-2); margin: 0; }
.hotline-box .eyebrow { color: var(--gold-l); margin-bottom: 8px; }

.area-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: clamp(18px, 2.4vw, 30px); }
.area-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(24px, 2.8vw, 34px); }
.area-card h3 { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; margin-bottom: 16px; padding-bottom: 14px; border-bottom: 1px solid var(--line); }
.area-card h3 span { font-size: .82rem; color: var(--gold); font-weight: 500; letter-spacing: .06em; }
.area-card__cities { color: var(--text-2); font-size: .92rem; line-height: 1.9; }
.area-card__list { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 16px; }
.area-card__list li { font-size: .86rem; padding: 5px 12px; background: var(--paper-2); border: 1px solid var(--line); border-radius: 100px; color: var(--text-2); }
.area-card__note { font-size: .84rem; color: var(--text-3); margin: 0; }
.area-summary { text-align: center; color: var(--text-2); font-size: .95rem; margin-top: clamp(24px, 3vw, 34px); }
.area-summary b { color: var(--red); font-family: var(--font-serif); font-size: 1.3rem; }

/* ---------- 28. 联系页 ---------- */
.contact-layout { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(30px, 4vw, 62px); align-items: start; }
.contact-info h2 { margin-bottom: 22px; }
.contact-actions { display: flex; gap: 12px; flex-wrap: wrap; margin: 26px 0; }
.qr-block { display: flex; gap: 20px; flex-wrap: wrap; padding-top: 24px; border-top: 1px solid var(--line); }
.qr-item { text-align: center; }
.qr-item img { width: 128px; height: 128px; object-fit: contain; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; padding: 8px; }
.qr-item figcaption { font-size: .84rem; color: var(--text-2); margin-top: 8px; }
.qr-note { font-size: .82rem; color: var(--text-3); margin-top: 14px; }
.contact-form .lead-form { padding: 0; background: transparent; }
.contact-form .lead-form__wrap { display: block; }
.contact-form .lead-form__intro { display: none; }
.contact-form .lead-form__form { background: var(--paper-2); border: 1px solid var(--line); box-shadow: none; }

.map-box { border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: var(--paper); }
.map-frame { display: block; width: 100%; height: clamp(320px, 42vw, 480px); border: 0; object-fit: cover; object-position: center; background: #e9eef3; }
.map-fallback { padding: 14px 20px; margin: 0; font-size: .88rem; color: var(--text-2); display: flex; gap: 10px; flex-wrap: wrap; align-items: center; border-top: 1px solid var(--line); }
.map-fallback a { color: var(--red); font-weight: 600; }
.map-note { text-align: center; color: var(--text-3); font-size: .86rem; margin-top: 20px; }

.prep-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(16px, 2vw, 26px); }
.prep-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(22px, 2.6vw, 32px); }
.prep-card__no { font-family: var(--font-serif); font-size: 1.5rem; color: var(--red); display: block; margin-bottom: 10px; line-height: 1; }
.prep-card h3 { font-size: 1rem; margin-bottom: 10px; }
.prep-card p { font-size: .9rem; color: var(--text-2); margin: 0; }
.prep-note { text-align: center; color: var(--text-3); font-size: .88rem; margin-top: 24px; }

/* ---------- 29. 隐私政策 ---------- */
.policy-layout { display: grid; grid-template-columns: 1fr 280px; gap: clamp(28px, 4vw, 62px); align-items: start; }
.policy-lead { font-size: 1.04rem; color: var(--text-2); padding-bottom: 24px; border-bottom: 1px solid var(--line); margin-bottom: 32px; }
.policy-sec { margin-bottom: 36px; }
.policy-sec h2 { font-size: 1.2rem; margin-bottom: 14px; padding-left: 14px; border-left: 3px solid var(--red); }
.policy-sec p { color: var(--text-2); font-size: .96rem; }
.policy-side { position: sticky; top: 100px; }
.policy-side h2 { font-size: .84rem; letter-spacing: .16em; color: var(--text-3); margin-bottom: 16px; }
.policy-side ol { display: grid; gap: 10px; counter-reset: p; }
.policy-side ol li { font-size: .88rem; color: var(--text-2); padding-left: 22px; position: relative; counter-increment: p; }
.policy-side ol li::before { content: counter(p, decimal-leading-zero); position: absolute; left: 0; color: var(--gold); font-size: .8rem; }
.policy-side__box { margin-top: 26px; padding: 20px; background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius); }
.policy-side__box p { font-size: .88rem; color: var(--text-2); margin-bottom: 12px; }

/* ---------- 30. 感谢 / 404 ---------- */
.thanks__inner, .notfound__inner { text-align: center; max-width: 880px; margin: 0 auto; }
.thanks__icon { width: 68px; height: 68px; margin: 0 auto 22px; color: #1a7f4b; }
.thanks__icon svg { width: 100%; height: 100%; }
.thanks__lead { color: var(--text-2); font-size: 1.06rem; }
.thanks__steps { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: clamp(16px, 2vw, 26px); margin: clamp(30px, 3.6vw, 46px) 0; text-align: left; }
.thanks__steps article { background: var(--paper-2); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: clamp(22px, 2.6vw, 30px); }
.thanks__steps span { font-family: var(--font-serif); font-size: 1.4rem; color: var(--red); display: block; margin-bottom: 8px; }
.thanks__steps h3 { font-size: 1rem; margin-bottom: 8px; }
.thanks__steps p { font-size: .9rem; color: var(--text-2); margin: 0; }
.thanks__call { margin-bottom: 26px; }
.thanks__call p { color: var(--text-2); }
.thanks__links { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.thanks__nap { margin-top: 30px; font-size: .86rem; color: var(--text-3); }

.notfound__code { font-family: var(--font-serif); font-size: clamp(4rem, 12vw, 8rem); color: var(--paper-3); line-height: 1; margin-bottom: 10px; font-weight: 700; }
.notfound__lead { color: var(--text-2); }
.notfound__nav { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; margin: 30px 0; }
.notfound__nav a { padding: 9px 20px; border: 1px solid var(--line); border-radius: 100px; font-size: .92rem; }
.notfound__nav a:hover { border-color: var(--red); color: var(--red); }
.notfound__call { margin-bottom: 24px; }
.notfound__call p { color: var(--text-2); }
.notfound__nap { font-size: .86rem; color: var(--text-3); }

/* ---------- 31. 滚动动画 ---------- */
.js [data-reveal] { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.js [data-reveal].is-in { opacity: 1; transform: none; }
.js .sec-head[data-reveal].is-in { transition-delay: .06s; }
/* 首屏（Hero / 页面头部）不参与进场动画：未执行 JS 时也立即可见，保障 LCP 与 SEO 可见性 */
.js .hero [data-reveal],
.js .page-hero [data-reveal] { opacity: 1; transform: none; transition: none; }
/* 兜底：若 JS 加载失败或 IntersectionObserver 不可用，2.2 秒后强制显示全部内容 */
@keyframes hl-reveal-fallback { to { opacity: 1; transform: none; } }
.js [data-reveal] { animation: hl-reveal-fallback .01s linear 2.2s forwards; }

/* ---------- 32. 响应式 ---------- */
@media (max-width: 1400px) {
  :root { --wrap: 1180px; }
  .primary-nav a { font-size: .9rem; }
  .cabin-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 1280px) {
  .primary-nav ul { gap: 6px; }
  .primary-nav a { font-size: .86rem; padding: 8px 2px; }
  .site-header__cta .btn { padding: 7px 12px; font-size: .8rem; }
  .cabin-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}

@media (max-width: 1120px) {
  .footer-main { grid-template-columns: 1.6fr 1fr 1fr 1.4fr; }
  .footer-col:nth-child(4) { display: none; }
  .prod-cards, .adv-grid, .adv-grid--4, .case-grid, .trust-grid, .price-cards,
  .safety-grid, .safety-grid--full, .cert-grid, .value-grid, .team-grid,
  .num-grid, .factory-grid, .factor-grid, .prep-grid, .scene-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cabin-grid, .mat-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .layer-grid { grid-template-columns: 1fr; }
  .flow-flow { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .pain-grid { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero__facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .gallery-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* 移动端导航切换 */
@media (max-width: 1024px) {
  .nav-toggle { display: flex; }
  .site-header__cta { display: none; }
  .primary-nav {
    position: fixed; inset: 0 0 0 auto; width: min(86vw, 360px);
    background: var(--ink); padding: 96px 26px 40px;
    transform: translateX(100%); transition: transform .38s var(--ease);
    overflow-y: auto; margin: 0; z-index: 130;
  }
  .primary-nav.is-open { transform: none; box-shadow: -20px 0 60px rgba(0,0,0,.4); }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav li { border-bottom: 1px solid var(--line-dark); }
  .primary-nav a {
    color: var(--on-dark); font-size: 1.04rem; padding: 16px 4px;
    border-bottom: 0; white-space: normal;
  }
  .primary-nav a:hover, .primary-nav a.is-active { color: var(--gold-l); }
  .nav-backdrop {
    position: fixed; inset: 0; background: rgba(13,13,15,.6); z-index: 125;
    opacity: 0; visibility: hidden; transition: .3s var(--ease);
  }
  .nav-backdrop.is-open { opacity: 1; visibility: visible; }
  .prod-row, .prod-row--rev { grid-template-columns: 1fr; }
  .prod-row--rev .prod-row__media { order: 0; }
  .lead-form__wrap { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .policy-layout { grid-template-columns: 1fr; }
  .policy-side { position: static; }
  .two-col, .visual-grid, .visual-grid--3, .warranty-grid, .area-grid,
  .know-grid, .testi-grid, .faq-list--two,
  .subtype-grid, .safety-list-grid { grid-template-columns: 1fr; }
  .pano-gallery { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .price-panel { grid-template-columns: 1fr; }
  .about-intro, .quote-side { grid-template-columns: 1fr; }
  .sec-head--row { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 760px) {
  body { font-size: 15.5px; }
  .topbar__scope { display: none; }
  .topbar__inner { justify-content: flex-end; }
  .brand { --brand-name-size: 1.3rem; gap: 4px; }
  .brand__row { gap: 8px; }
  .brand__name { letter-spacing: 0; }
  .brand__slogan { font-size: .63rem; }
  .hero { min-height: 78vh; }
  .hero__actions .btn { width: 100%; }
  .hero__facts { grid-template-columns: 1fr 1fr; }
  .hero__facts li { padding: 14px 16px; }
  .prod-cards, .adv-grid, .adv-grid--4, .case-grid, .case-grid--all, .trust-grid,
  .price-cards, .safety-grid, .safety-grid--full, .cert-grid, .value-grid, .team-grid,
  .num-grid, .factory-grid, .factor-grid, .prep-grid, .scene-grid,
  .flow-flow, .flow-flow--3, .gallery-grid, .info-grid, .thanks__steps,
  .form-row, .quiz__options, .area-chips, .nap-block--wide { grid-template-columns: 1fr; }
  .cabin-grid, .mat-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sec { padding: 52px 0; }
  .fit-list li { grid-template-columns: 1fr; gap: 4px; }
  .timeline { padding-left: 12px; }
  .timeline::before { left: 11px; }
  .timeline__marker { width: 36px; height: 36px; font-size: .86rem; }
  .timeline__item { padding-left: 52px; }
  .nav-block > div, .nap-block > div { grid-template-columns: 1fr; gap: 4px; }
  .cta-band__actions .btn { width: 100%; }
  .float-actions { right: 12px; bottom: 16px; }
  .float-btn { width: 48px; height: 48px; }
  .float-btn svg { width: 18px; height: 18px; }
  .float-btn span { font-size: .58rem; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-col:nth-child(4) { display: block; }
  .footer-contact { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .spec-table, .price-table { min-width: 620px; }
  .qr-item img { width: 108px; height: 108px; }
  .thanks__links .btn, .summary-box__actions .btn, .prod-row__actions .btn { width: 100%; }
  /* 首屏标题：手机端分两行，两行左对齐（朝对上、不缩进），并加大行距（电脑端不变） */
  .hero__title { letter-spacing: 0; line-height: 1.36; }
  .hero__line { display: block; }
  .hero__line--indent { text-indent: 0; }
  /* 副标题：手机端分两行，左对齐（电脑端不变） */
  .hero__sub .hs-l { display: block; }
}

@media (max-width: 760px) {
  .pano-gallery { grid-template-columns: 1fr; }
}

@media (max-width: 420px) {
  .cabin-grid, .mat-grid { grid-template-columns: 1fr; }
  .topbar { font-size: .76rem; }
  .brand { --brand-name-size: 1.14rem; }
  .brand__slogan { display: flex; font-size: .58rem; }
}

/* 小屏（手机）进一步精修 */
@media (max-width: 480px) {
  /* 页脚改为单列，避免窄屏下两列被挤压 */
  .footer-main { grid-template-columns: 1fr; gap: 26px; }
  .footer-brand, .footer-contact { grid-column: auto; }
  .footer-bottom { gap: 8px; }
  /* 表格在卡片内横向滚动即可，缩小最小宽度以减少滚动量 */
  .spec-table, .price-table { min-width: 460px; }
  /* 顶栏与导航之间留白收紧，按钮/卡片操作全宽更易点按 */
  .sec { padding: 44px 0; }
  .prod-row__actions .btn, .cta-band__actions .btn { width: 100%; }
  .hero__title { letter-spacing: 0; }
}

/* 超小屏（≤360）兜底，确保不出现横向溢出 */
@media (max-width: 360px) {
  .topbar__tel { font-size: .98rem; }
  .hero__facts { grid-template-columns: 1fr; }
}

/* 打印 */
@media print {
  .site-header, .topbar, .float-actions, .lead-form, .cta-band, .site-footer { display: none; }
  body { color: #000; }
}