/* ==========================================================================
   迪赛品牌设计 DISAI BRAND DESIGN — 全站样式
   视觉纪律：深灰 #3A3A3A / 浅灰白 #F5F5F5 / 品牌红 #E60012（仅点睛）
   禁止：渐变、炫光、阴影堆叠、飘窗弹窗
   只允许一种动效：内容随滚动淡入
   ========================================================================== */

:root {
  --ink: #3A3A3A;
  --ink-2: #5C5C5C;
  --ink-3: #8A8A8A;
  --ink-4: #B4B4B4;
  --paper: #F5F5F5;
  --paper-2: #EDEDED;
  --line: #DCDCDC;
  --line-dark: #4A4A4A;
  --white: #FFFFFF;
  --red: #E60012;

  --font: -apple-system, BlinkMacSystemFont, "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

  /* 标题字体：思源黑体 Bold 子集（SIL OFL 1.1 免费商用，见 /fonts/OFL.txt） */
  --font-heading: "DISAI Heading", -apple-system, BlinkMacSystemFont, "PingFang SC",
          "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

  --nav-h: 60px;
  --gutter: 24px;
  --max: 1200px;
  --sec-y: 88px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

/* 思源黑体 Bold 子集：仅含标题实际用字（src/make_fonts.py 自动生成） */
@font-face {
  font-family: "DISAI Heading";
  src: url("/fonts/disai-heading-subset.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap; /* 字体未下载完先用系统字体显示，避免手机上标题空白等待 */
  font-display: swap;
}

h1, h2, h3, h4, .h1, .h2, .h3, .h4 { font-family: var(--font-heading); }

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.85;
  color: var(--ink-2);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button, input, select, textarea { font: inherit; color: inherit; }
button { background: none; border: 0; cursor: pointer; }

/* ---------- 通用排版 ---------- */
.h1, .h2, .h3, .h4 { color: var(--ink); font-weight: 700; line-height: 1.35; }
.h1 { font-size: 40px; letter-spacing: .02em; }
.h2 { font-size: 30px; letter-spacing: .02em; }
.h3 { font-size: 21px; }
.h4 { font-size: 17px; }

.en {
  display: block;
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--ink-4);
  line-height: 1.6;
}
.lead { font-size: 16px; color: var(--ink-2); }
.muted { color: var(--ink-3); font-size: 13px; }
.strong { color: var(--ink); font-weight: 700; }

.wrap { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.sec { padding: var(--sec-y) 0; }
.sec--paper { background: var(--paper); }
.sec--white { background: var(--paper); }
.sec--tight { padding: 56px 0; }

.sec-head { margin-bottom: 44px; }
.sec-head .en { margin-bottom: 10px; }
.sec-head h2 { margin-bottom: 12px; }
.sec-head p { max-width: 720px; }

.rule { height: 1px; background: var(--line); border: 0; }
.rule-red { height: 2px; width: 32px; background: var(--red); border: 0; }

.red { color: var(--red); }
.num { color: var(--red); font-weight: 700; letter-spacing: .04em; font-variant-numeric: tabular-nums; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 46px; padding: 0 28px;
  font-size: 14px; font-weight: 700; letter-spacing: .06em;
  border: 1px solid var(--ink); color: var(--ink); background: transparent;
  transition: background .18s ease, color .18s ease, border-color .18s ease;
  text-align: center;
}
.btn:hover { background: var(--ink); color: var(--white); }
.form__privacy { margin-top: 10px; font-size: 12.5px; color: var(--ink-2); line-height: 1.7; }
.btn--red { background: var(--red); border-color: var(--red); color: #fff; }
.btn--red:hover { background: #C4000F; border-color: #C4000F; color: #fff; }
.btn--ghost { border-color: rgba(255,255,255,.55); color: #fff; }
.btn--ghost:hover { background: #fff; color: var(--ink); border-color: #fff; }
.btn--solid-light { background: var(--white); border-color: var(--white); color: var(--ink); }
.btn--solid-light:hover { background: transparent; color: #fff; border-color: #fff; }
.btn--sm { min-height: 38px; padding: 0 18px; font-size: 13px; }
.btn--block { width: 100%; }

/* ---------- 导航条（极细） ---------- */
.nav {
  position: sticky; top: 0; z-index: 60;
  background: var(--ink);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.nav__in { display: flex; align-items: center; justify-content: space-between; height: var(--nav-h); }
.brand { display: flex; align-items: center; gap: 10px; color: #fff; }
.brand__logo { height: 34px; width: auto; display: block; }
.brand__slogan {
  font-size: 14.5px; font-weight: 700; color: rgba(255,255,255,.88); letter-spacing: .18em;
  border-left: 1px solid rgba(255,255,255,.3); padding-left: 14px; margin-left: 6px;
  white-space: nowrap; line-height: 1;
}
@media (max-width: 760px) {
  .brand__logo { height: 28px; }
  .brand__slogan { font-size: 11px; padding-left: 8px; margin-left: 4px; letter-spacing: .08em; }
}
.brand__cn { font-size: 17px; font-weight: 700; letter-spacing: .06em; }
.brand__en { font-size: 10px; letter-spacing: .2em; text-transform: uppercase; color: rgba(255,255,255,.5); }
.brand__dot { width: 5px; height: 5px; background: var(--red); display: inline-block; margin-right: 2px; vertical-align: middle; }

.nav__menu { display: flex; align-items: center; gap: 22px; }
.nav__link {
  position: relative; padding: 4px 0; white-space: nowrap;
  font-size: 13.5px; color: rgba(255,255,255,.78); letter-spacing: .04em;
}
.nav__link::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 0; height: 1px;
  background: var(--red); transition: width .2s ease;
}
.nav__link:hover { color: #fff; }
.nav__link:hover::after, .nav__link[aria-current="page"]::after { width: 100%; }
.nav__link[aria-current="page"] { color: #fff; }
.nav__cta { border: 1px solid rgba(255,255,255,.4); color: #fff; padding: 7px 16px; font-size: 13px; font-weight: 700; white-space: nowrap; }
.nav__cta:hover { background: #fff; color: var(--ink); }

/* 导航项变长（「免费现场勘察与方案」）后的窄屏桌面安全间距 */
@media (min-width: 761px) and (max-width: 1300px) {
  .nav__menu { gap: 16px; }
  .nav__link { font-size: 13px; }
  .brand__slogan { letter-spacing: .08em; padding-left: 10px; }
}

/* 导航下拉 */
.nav__has-child { position: relative; }
.nav__drop {
  position: absolute; top: 100%; left: -18px; min-width: 190px;
  background: var(--ink); border: 1px solid rgba(255,255,255,.1);
  padding: 8px 0; display: none; z-index: 80;
}
.nav__has-child:hover .nav__drop { display: block; }
.nav__drop a {
  display: block; padding: 10px 18px; font-size: 13px;
  color: rgba(255,255,255,.72); white-space: nowrap;
}
.nav__drop a:hover { background: #2E2E2E; color: #fff; }

.nav__toggle { display: none; width: 40px; height: 40px; position: relative; }
.nav__toggle span {
  position: absolute; left: 9px; width: 22px; height: 1.5px; background: #fff;
  transition: transform .2s ease, opacity .2s ease;
}
.nav__toggle span:nth-child(1) { top: 15px; }
.nav__toggle span:nth-child(2) { top: 21px; }
.nav__toggle span:nth-child(3) { top: 27px; }
.nav.is-open .nav__toggle span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav.is-open .nav__toggle span:nth-child(2) { opacity: 0; }
.nav.is-open .nav__toggle span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- 首屏 ---------- */
.hero {
  position: relative; background: var(--ink); color: #fff;
  min-height: 78vh; display: flex; align-items: flex-end;
  background-size: cover; background-position: center;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background: rgba(24,24,24,.62);
}
.hero__in { position: relative; z-index: 2; width: 100%; padding: 120px 0 64px; }
/* 桌面端首页首屏文案与左边缘拉开距离 */
@media (min-width: 761px) {
  .hero__in { padding-left: 40px; padding-right: 40px; }
}
.hero__en { color: rgba(255,255,255,.5); margin-bottom: 20px; }
.hero h1 {
  color: #fff; font-size: 52px; line-height: 1.28; letter-spacing: .02em;
  max-width: 16em; margin-bottom: 22px;
}
.hero__sub { font-size: 16px; color: rgba(255,255,255,.82); letter-spacing: .04em; margin-bottom: 12px; }
.hero__desc { font-size: 14px; color: rgba(255,255,255,.6); max-width: 560px; margin-bottom: 32px; }
.hero__brand { font-size: 13px; color: rgba(255,255,255,.5); letter-spacing: .04em; margin: -22px 0 0; }
.hero__btns { display: flex; flex-wrap: wrap; gap: 14px; }

/* 页面小首屏 */
.phero { background: var(--ink); color: #fff; padding: 72px 0 60px; }
.phero .en { color: rgba(255,255,255,.45); margin-bottom: 16px; }
.phero h1 { color: #fff; font-size: 34px; line-height: 1.4; max-width: 22em; }
.phero__desc { margin-top: 16px; max-width: 760px; color: rgba(255,255,255,.68); font-size: 14.5px; }
.phero__meta { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 13px; color: rgba(255,255,255,.6); }
.phero--list { padding: 60px 0 48px; }

/* 面包屑 */
.crumb { padding: 16px 0; font-size: 12.5px; color: var(--ink-3); border-bottom: 1px solid var(--line); background: var(--paper); }
.crumb a:hover { color: var(--ink); }
.crumb span { margin: 0 7px; color: var(--ink-4); }

/* ---------- 业务卡片 ---------- */
.cards4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.card-biz { background: var(--paper); padding: 32px 26px 30px; display: flex; flex-direction: column; }
.card-biz .num { font-size: 39px; display: block; margin-bottom: 14px; line-height: 1; }
.card-biz .en { margin: 14px 0 8px; }
.card-biz h3 { font-size: 20px; margin-bottom: 12px; }
.card-biz p { font-size: 13.5px; color: var(--ink-2); line-height: 1.8; margin-bottom: 16px; }
.card-biz ul { margin-bottom: 22px; }
.card-biz li { font-size: 12.5px; color: var(--ink-3); padding-left: 12px; position: relative; line-height: 1.9; }
.card-biz li::before { content: ""; position: absolute; left: 0; top: .78em; width: 4px; height: 1px; background: var(--ink-4); }
.card-biz .more { margin-top: auto; font-size: 13px; font-weight: 700; color: var(--ink); display: inline-flex; gap: 8px; }
.card-biz .more::after { content: "→"; transition: transform .2s ease; }
.card-biz:hover .more::after { transform: translateX(4px); }

/* 5件事：01 号通栏大卡（左文右清单） */
.biz-wide { display: grid; grid-template-columns: 1.1fr 1fr; gap: 34px 56px; background: var(--paper); border: 1px solid var(--line); padding: 34px 38px 32px; margin-bottom: 22px; }
.biz-wide__main .num { font-size: 46px; line-height: 1; display: block; margin-bottom: 14px; }
.biz-wide__main .en { margin: 12px 0 8px; }
.biz-wide__main h3 { font-size: 24px; margin-bottom: 12px; }
.biz-wide__main p { font-size: 14px; color: var(--ink-2); line-height: 1.9; margin-bottom: 20px; }
.biz-wide__main .more { font-size: 13px; font-weight: 700; color: var(--ink); display: inline-flex; gap: 8px; }
.biz-wide__main .more::after { content: "→"; transition: transform .2s ease; }
.biz-wide__main .more:hover::after { transform: translateX(4px); }
.biz-wide__list { border-left: 1px solid var(--line); padding-left: 40px; align-self: center; }
.biz-wide__list li { font-size: 13.5px; color: var(--ink-2); line-height: 2; padding-left: 14px; position: relative; }
.biz-wide__list li::before { content: ""; position: absolute; left: 0; top: .9em; width: 5px; height: 1px; background: var(--ink-4); }
.biz-wide__list li b, .biz-wide__list li strong { color: var(--ink); }

/* ---------- 专区入口 ---------- */
.zone-entry { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.zone-entry a { background: var(--paper); padding: 48px 40px; display: block; }
.zone-entry a:hover { background: var(--paper-2); }
.zone-entry .en { margin-bottom: 12px; }
.zone-entry h3 { font-size: 24px; margin-bottom: 14px; line-height: 1.4; }
.zone-entry p { font-size: 13.5px; max-width: 30em; margin-bottom: 18px; }
.zone-entry .more { font-size: 13px; font-weight: 700; color: var(--ink); }
.zone-entry .more::after { content: " →"; }
.zone-entry--3 { grid-template-columns: repeat(3, 1fr); }

/* ---------- 优势列表 ---------- */
.adv { display: grid; grid-template-columns: repeat(5, 1fr); gap: 0; border-top: 1px solid var(--line); }
.adv__item { padding: 30px 22px 30px 0; border-right: 1px solid var(--line); }
.adv__item:last-child { border-right: 0; }
.adv__item .num { font-size: 36px; display: block; margin-bottom: 14px; line-height: 1; }
.adv__item h4 { font-size: 15px; margin-bottom: 10px; }
.adv__item p { font-size: 13px; color: var(--ink-2); line-height: 1.8; }

/* ---------- 作品列表（编号制） ---------- */
.wlist { border-top: 1px solid var(--line); }
.witem { display: grid; grid-template-columns: 150px 1fr; gap: 0; border-bottom: 1px solid var(--line); padding: 34px 0; }
.witem__no { font-size: 54px; font-weight: 700; color: var(--red); line-height: 1; letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.witem__body { position: relative; }
.witem__img { display: block; overflow: hidden; background: var(--paper-2); }
.witem__img img { width: 100%; aspect-ratio: 16/9; object-fit: cover; transition: opacity .25s ease; }
.witem:hover .witem__img img { opacity: .9; }
.witem__txt { margin-top: 18px; display: flex; flex-wrap: wrap; align-items: baseline; gap: 6px 16px; }
.witem__title { font-size: 18px; font-weight: 700; color: var(--ink); }
.witem__meta { font-size: 12.5px; color: var(--ink-3); }
.witem__tag {
  position: absolute; top: 0; right: 0;
  font-size: 11.5px; letter-spacing: .1em; color: var(--ink-2);
  border: 1px solid var(--line); padding: 4px 12px; background: var(--paper);
}
.witem__ph { font-size: 11px; color: var(--ink-4); letter-spacing: .08em; }
.witem__sum { margin-top: 12px; font-size: 13.5px; color: var(--ink-2); max-width: 62em; }

/* ---------- 作品详情 ---------- */
.wd-head { display: flex; gap: 28px; align-items: flex-start; }
.wd-head__no { font-size: 64px; font-weight: 700; color: var(--red); line-height: .9; }
.wd-head__txt h1 { font-size: 30px; line-height: 1.4; margin-bottom: 14px; }
.wd-conclusion {
  font-size: 16px; color: var(--ink); font-weight: 700;
  border-left: 2px solid var(--red); padding-left: 14px; line-height: 1.75; max-width: 40em;
}
.wd-meta { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 34px; }
.wd-meta div { background: var(--paper); padding: 16px 18px; }
.wd-meta dt { font-size: 11px; letter-spacing: .14em; color: var(--ink-4); text-transform: uppercase; margin-bottom: 6px; }
.wd-meta dd { font-size: 13.5px; color: var(--ink); font-weight: 700; }

.wd-body { display: grid; grid-template-columns: 1.15fr 1fr; gap: 56px; align-items: flex-start; }
.wd-gallery img { width: 100%; margin-bottom: 14px; background: var(--paper-2); }
.wd-gallery figcaption { font-size: 12px; color: var(--ink-4); margin: -4px 0 22px; }

.wd-story > section { padding-bottom: 28px; margin-bottom: 28px; border-bottom: 1px solid var(--line); }
.wd-story > section:last-of-type { border-bottom: 0; }
.wd-story h3 { font-size: 15px; letter-spacing: .08em; margin-bottom: 12px; display: flex; align-items: center; gap: 10px; }
.wd-story h3::before { content: ""; width: 3px; height: 13px; background: var(--red); display: block; }
.wd-story p { font-size: 14px; line-height: 1.9; }

.mat-list { border-top: 1px solid var(--line); }
.mat-list li { border-bottom: 1px solid var(--line); padding: 11px 0; font-size: 13.5px; color: var(--ink-2); padding-left: 14px; position: relative; }
.mat-list li::before { content: ""; position: absolute; left: 0; top: 1.55em; width: 5px; height: 1px; background: var(--red); }

.tagrow { display: flex; flex-wrap: wrap; gap: 8px; }
.tag { font-size: 12px; color: var(--ink-2); border: 1px solid var(--line); padding: 4px 12px; background: var(--paper); }
.tag--red { color: var(--red); border-color: var(--red); }

.wd-cta { margin-top: 40px; padding: 32px 0 0; border-top: 1px solid var(--line); }

/* ---------- 图文模块（业务页） ---------- */
.blk { display: grid; grid-template-columns: 240px 1fr; gap: 40px; padding: 40px 0; border-top: 1px solid var(--line); }
.blk:last-child { border-bottom: 1px solid var(--line); }
.blk__side .num { font-size: 12px; display: block; margin-bottom: 10px; }
.blk__side h3 { font-size: 19px; line-height: 1.5; }
.blk__side .en { margin-top: 8px; }
.blk__main p { font-size: 14.5px; margin-bottom: 16px; max-width: 62em; }
.blk__main p:last-child { margin-bottom: 0; }

.collist { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; border-top: 1px solid var(--line); }
.collist li { border-bottom: 1px solid var(--line); border-right: 1px solid var(--line); padding: 16px 16px 16px 0; font-size: 13.5px; color: var(--ink); }
.collist li:nth-child(4n) { border-right: 0; }

.scenelist { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.scenelist li { background: var(--paper); padding: 18px 20px; font-size: 14px; color: var(--ink); }

.modgrid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.modgrid > div { background: var(--paper); padding: 26px 22px; }
.modgrid .num { font-size: 12px; display: block; margin-bottom: 12px; }
.modgrid h3 { font-size: 16px; margin-bottom: 10px; }
.modgrid p { font-size: 13px; line-height: 1.85; color: var(--ink-2); }

/* 材质工艺 */
.matcards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.matcards > div { background: var(--paper); padding: 20px 22px; }
.matcards h4 { font-size: 15px; margin-bottom: 8px; }
.matcards p { font-size: 13px; color: var(--ink-2); line-height: 1.8; }

/* 报价说明 */
.note { background: var(--paper-2); border-left: 2px solid var(--ink); padding: 20px 24px; font-size: 14px; }
.note--red { border-left-color: var(--red); }

/* ---------- 流程 ---------- */
.flow { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; border-top: 1px solid var(--line); }
.flow__item { padding: 26px 18px 26px 0; border-right: 1px solid var(--line); }
.flow__item:last-child { border-right: 0; }
.flow__item .num { font-size: 12px; display: block; margin-bottom: 12px; }
.flow__item h4 { font-size: 15px; margin-bottom: 9px; }
.flow__item p { font-size: 12.5px; color: var(--ink-2); line-height: 1.8; }
/* 流程图标：红色细线圆形标（svg 本身即 .flow__icon / 包在 .flowbig__no 中） */
.flow__icon,
.flowbig__no svg {
  display: block;
  box-sizing: border-box;
  width: 46px; height: 46px; padding: 11px;
  border: 1.5px solid var(--red); border-radius: 50%;
  margin-bottom: 16px;
  stroke: var(--red); fill: none; stroke-width: 1.6;
  stroke-linecap: round; stroke-linejoin: round;
}
.flowbig__no svg { margin-bottom: 0; }
/* 大流程（流程页） */
.flowbig { border-top: 1px solid var(--line); }
.flowbig__row { display: grid; grid-template-columns: 110px 1fr; gap: 28px; padding: 30px 0; border-bottom: 1px solid var(--line); align-items: start; }
.flowbig__no { font-size: 32px; font-weight: 700; color: var(--red); line-height: 1; }
.flowbig__main { min-width: 0; }
.flowbig__name { font-size: 18px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.flowbig__desc { font-size: 14px; }
.flowbig__extra { font-size: 13px; color: var(--ink-3); margin-top: 10px; }

/* ---------- 文章 ---------- */
.plist { border-top: 1px solid var(--line); }
.pitem { display: grid; grid-template-columns: 320px 1fr; gap: 30px; padding: 30px 0; border-bottom: 1px solid var(--line); align-items: start; }
.pitem img { width: 100%; aspect-ratio: 16/10; object-fit: cover; background: var(--paper-2); }
.pitem__meta { display: flex; gap: 14px; font-size: 12px; color: var(--ink-4); margin-bottom: 10px; letter-spacing: .06em; }
.pitem h3 { font-size: 18px; line-height: 1.55; margin-bottom: 10px; }
.pitem p { font-size: 13.5px; color: var(--ink-2); max-width: 60em; }
.pitem:hover h3 { color: var(--red); }

.post { max-width: 760px; }
.post__meta { display: flex; gap: 14px; font-size: 12.5px; color: var(--ink-4); margin-bottom: 18px; letter-spacing: .06em; }
.post p { font-size: 15.5px; line-height: 2; margin-bottom: 20px; color: var(--ink-2); }
.post h2 { font-size: 19px; color: var(--ink); margin: 36px 0 16px; padding-left: 14px; border-left: 2px solid var(--red); }
.post figure { margin: 28px 0; }
.post figure img { width: 100%; background: var(--paper-2); }
.post figcaption { font-size: 12px; color: var(--ink-4); margin-top: 8px; }
.post__summary { font-size: 15px; color: var(--ink-3); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 18px 0; margin-bottom: 32px; }

/* ---------- 客户评价 ---------- */
.quotes { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.quotes > div { background: var(--paper); padding: 30px 28px; }
.quotes blockquote { font-size: 14.5px; line-height: 1.95; color: var(--ink); margin-bottom: 18px; }
.quotes cite { font-style: normal; font-size: 12.5px; color: var(--ink-3); display: block; }
.quotes cite b { color: var(--ink); font-weight: 700; }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__q {
  width: 100%; text-align: left; display: flex; gap: 16px; align-items: flex-start;
  padding: 22px 0; font-size: 15.5px; font-weight: 700; color: var(--ink); line-height: 1.7;
}
.faq__q span:first-child { color: var(--red); font-size: 12px; padding-top: .45em; letter-spacing: .06em; flex: none; }
.faq__sign { margin-left: auto; flex: none; width: 12px; height: 12px; position: relative; margin-top: .5em; }
.faq__sign::before, .faq__sign::after { content: ""; position: absolute; background: var(--ink-3); }
.faq__sign::before { left: 0; top: 5.5px; width: 12px; height: 1px; }
.faq__sign::after { top: 0; left: 5.5px; width: 1px; height: 12px; transition: transform .2s ease; }
.faq__item.is-open .faq__sign::after { transform: rotate(90deg); }
.faq__a { display: none; padding: 0 0 24px 34px; font-size: 14px; line-height: 1.95; max-width: 68em; }
.faq__item.is-open .faq__a { display: block; }

/* ---------- 服务区域 ---------- */
.areas { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.area-card { background: var(--paper); padding: 28px 26px; }
.area-card h3 { font-size: 19px; margin-bottom: 6px; }
.area-card h3 a:hover { color: var(--red); }
.area-card .en { margin-bottom: 14px; }
.area-card p { font-size: 13px; color: var(--ink-2); line-height: 1.85; margin-bottom: 14px; }
.towns { display: flex; flex-wrap: wrap; gap: 6px; }
.towns span { font-size: 12px; color: var(--ink-2); background: var(--paper-2); padding: 3px 10px; }
.towns span:hover { color: var(--red); }

.area-detail { display: grid; grid-template-columns: 1fr 320px; gap: 56px; align-items: start; }
.area-detail .towns span { background: var(--paper-2); font-size: 13px; padding: 6px 14px; }
.commitline { border-left: 2px solid var(--red); padding-left: 16px; font-size: 15px; color: var(--ink); font-weight: 700; line-height: 1.8; }

/* 页脚服务区域导航 */
.footareas { border-top: 1px solid rgba(255,255,255,.1); padding: 30px 0; }
.footareas__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px 30px; }
.footareas h5 { font-size: 13px; color: #fff; font-weight: 700; margin-bottom: 10px; }
.footareas h5 a:hover { color: var(--red); }
.footareas p { font-size: 11.5px; color: rgba(255,255,255,.45); line-height: 1.9; letter-spacing: .02em; }
.footareas p a:hover { color: #fff; }
.footareas__more { margin-top: 18px; font-size: 12px; color: rgba(255,255,255,.45); }
.footareas__more a { color: rgba(255,255,255,.75); font-weight: 700; }

/* ---------- 禁用 JS 时的备用联系区（noscript） ---------- */
.nsfallback { margin-top: 26px; padding: 24px 26px; background: var(--white); border: 1px solid var(--line); border-left: 2px solid var(--red); }
.nsfallback__tip { font-size: 13.5px; color: var(--ink-2); line-height: 1.9; }
.nsfallback__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px 34px; margin-top: 16px; }
.nsfallback h4 { margin-bottom: 10px; }
.nsfallback p { font-size: 13.5px; line-height: 1.9; }
.nsfallback__tel { font-size: 20px; font-weight: 700; color: var(--red); letter-spacing: .02em; }
.nsfallback__qr { width: 120px; height: 120px; margin: 10px 0 6px; display: block; }
.nsfallback__mini { font-size: 12px; color: var(--ink-3); }
.nsfallback__form { display: flex; flex-direction: column; gap: 10px; margin-top: 4px; }
.nsfallback__form input, .nsfallback__form textarea {
  width: 100%; padding: 10px 12px; font: inherit; font-size: 14px;
  border: 1px solid var(--line); background: var(--paper); color: var(--ink);
}
.nsfallback__form button { align-self: flex-start; margin-top: 4px; }

/* A1 页脚公司主体信息区 */
.foot__legal { border-top: 1px solid rgba(255,255,255,.1); padding: 22px 0 4px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px 30px; }
.foot__legal-row { font-size: 12.5px; color: rgba(255,255,255,.45); line-height: 1.8; }
.foot__legal-row span { display: block; font-size: 11.5px; letter-spacing: .06em; color: rgba(255,255,255,.35); }
.foot__legal-row b { font-weight: 700; color: rgba(255,255,255,.86); }
.foot__legal-row a { color: rgba(255,255,255,.86); }

/* B4 全站页脚：两站关系说明 */
.foot__sites { border-top: 1px solid rgba(255,255,255,.1); margin-top: 18px; padding: 20px 0 0; font-size: 12.5px; line-height: 1.9; color: rgba(255,255,255,.5); max-width: 70em; }
.foot__sites a { color: #fff; font-weight: 700; text-decoration: underline; text-decoration-color: var(--red); text-underline-offset: 3px; }

/* A4/B5 钩子小字 */
.hero__hook { margin-top: 14px; font-size: 13px; color: rgba(255,255,255,.66); letter-spacing: .02em; }
.form__hook { margin-top: 14px; font-size: 12.5px; color: var(--ink-3); }

/* B6 展厅业务迁出后的引导语 */
.biznote { margin-top: 24px; padding: 16px 20px; background: var(--paper-2); border-left: 2px solid var(--red); font-size: 13.5px; color: var(--ink-2); max-width: 60em; }
.biznote a { color: var(--ink); font-weight: 700; text-decoration: underline; text-decoration-color: var(--red); text-underline-offset: 3px; }

/* 业务迁出页面的说明条 */
.migrate { margin: 24px 0 -24px; padding: 16px 20px; background: var(--paper-2); border-left: 2px solid var(--ink); font-size: 13.5px; color: var(--ink-2); }
.migrate a { color: var(--ink); font-weight: 700; text-decoration: underline; text-underline-offset: 3px; }

/* B7 暂无案例区域的说明 */
.areamore { margin-top: 26px; padding: 20px 24px; background: var(--white); border: 1px solid var(--line); }
.areamore p { font-size: 14px; color: var(--ink-2); }
.casenote { margin-top: 12px; font-size: 12.5px; color: var(--ink-3); border-left: 2px solid var(--line); padding-left: 14px; }

/* B1 关于我们正文段落 */
.prose { max-width: 46em; }
.prose p { font-size: 15px; line-height: 2; color: var(--ink-2); margin-bottom: 18px; }
.prose p:first-child { font-size: 16px; color: var(--ink); font-weight: 700; }

/* ---------- 页脚 ---------- */
.foot { background: var(--ink); color: rgba(255,255,255,.6); padding: 56px 0 0; font-size: 13px; }
.foot a:hover { color: #fff; }
.foot__top { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 34px 44px; padding-bottom: 40px; }
/* 页脚品牌列：窄屏时标语换行到 logo 下方，避免溢出压到相邻栏目 */
.foot__brand .brand { margin-bottom: 16px; flex-wrap: wrap; row-gap: 10px; }
.foot__brand .brand__slogan { font-size: 13px; letter-spacing: .12em; }
/* 桌面端：logo 居左，标语靠右同一行，去掉灰竖线（手机端保持原样） */
@media (min-width: 761px) {
  .foot__brand .brand { flex-wrap: nowrap; align-items: center; }
  .foot__brand .brand__slogan {
    border-left: 0; padding-left: 0; margin-left: auto;
    font-size: 12px; letter-spacing: .06em; white-space: nowrap;
  }
}
.foot__brand p { font-size: 12.5px; line-height: 1.9; color: rgba(255,255,255,.5); max-width: 30em; }
.foot h4 { color: #fff; font-size: 13.5px; font-weight: 700; letter-spacing: .06em; margin-bottom: 16px; }
.foot li { margin-bottom: 9px; font-size: 12.5px; }
.foot li a { color: rgba(255,255,255,.6); }
.foot__qr { margin-top: 14px; }
.foot__qr img { width: 104px; height: 104px; background: #fff; padding: 4px; object-fit: contain; }
.foot__qr span { display: block; font-size: 11px; color: rgba(255,255,255,.4); margin-top: 8px; max-width: 130px; line-height: 1.6; }
.foot__cta { background: #333; border-top: 1px solid rgba(255,255,255,.08); border-bottom: 1px solid rgba(255,255,255,.08); }
.foot__cta .wrap { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 20px; padding-top: 28px; padding-bottom: 28px; }
.foot__cta h3 { color: #fff; font-size: 19px; margin-bottom: 6px; }
.foot__cta p { font-size: 12.5px; color: rgba(255,255,255,.5); max-width: 46em; }
.foot__bottom { padding: 22px 0 90px; display: flex; flex-wrap: wrap; gap: 8px 20px; justify-content: space-between; font-size: 12px; color: rgba(255,255,255,.4); }
.foot__bottom a { color: rgba(255,255,255,.4); }

/* ---------- 悬浮条（PC 右侧极细竖向） ---------- */
.sidebar {
  position: fixed; right: 0; top: 50%; transform: translateY(-50%); z-index: 50;
  background: var(--ink); border-left: 1px solid rgba(255,255,255,.08);
  display: flex; flex-direction: column; align-items: center;
}
.sidebar a, .sidebar .sb-item {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 8px;
  writing-mode: vertical-rl; letter-spacing: .22em;
  padding: 20px 12px; font-size: 12px; color: rgba(255,255,255,.75);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.sidebar a:hover { background: #2E2E2E; color: #fff; }
.sidebar .sb-item { writing-mode: horizontal-tb; padding: 14px 8px; }
.sidebar img { width: 76px; height: 76px; background: #fff; padding: 3px; object-fit: contain; }
.sidebar span.sb-label { font-size: 10px; letter-spacing: .1em; color: rgba(255,255,255,.5); }

/* ---------- 移动端底部固定栏 ---------- */
.mobar { display: none; }
.mobar__in {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 70;
  background: var(--ink); border-top: 1px solid rgba(255,255,255,.1);
  display: grid; grid-template-columns: 1fr 1fr;
  padding-bottom: env(safe-area-inset-bottom, 0);
}
.mobar__in a {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  height: 54px; color: #fff; font-size: 14px; font-weight: 700; letter-spacing: .06em;
}
.mobar__in a + a { border-left: 1px solid rgba(255,255,255,.12); }
.mobar__in .is-red { background: var(--red); }

/* ---------- 表单 ---------- */
.form { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.field { background: var(--paper); padding: 18px 20px; }
.field--full { grid-column: 1 / -1; }
.field label { display: flex; align-items: baseline; gap: 6px; font-size: 12px; letter-spacing: .12em; color: var(--ink-4); text-transform: uppercase; margin-bottom: 10px; }
.field label b { color: var(--red); font-size: 12px; }
.field input, .field select, .field textarea {
  width: 100%; border: 0; border-bottom: 1px solid var(--line); background: transparent;
  padding: 6px 0; font-size: 15px; color: var(--ink); outline: none;
  border-radius: 0; -webkit-appearance: none; appearance: none;
}
.field input:focus, .field select:focus, .field textarea:focus { border-bottom-color: var(--red); }
.field textarea { resize: vertical; min-height: 78px; line-height: 1.8; }
/* 下拉框：修复「点开后选项文字看不见」（透明背景 + 系统深色模式下原生弹层深底深字），
   并补回被 appearance:none 去掉的下拉箭头 */
.field select {
  background-color: inherit;
  color: var(--ink);
  color-scheme: light;
  padding-right: 26px;
  background-repeat: no-repeat;
  background-position: right 2px center;
  background-size: 12px 8px;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'><path d='M1 1.5 L6 6.5 L11 1.5' fill='none' stroke='%233A3A3A' stroke-width='1.6' stroke-linecap='round' stroke-linejoin='round'/></svg>");
}
.field select option { color: var(--ink); background: var(--white); }
/* 极窄屏也不用担心遮挡 */
@media (max-width: 400px) {
  .field select { padding-right: 22px; }
}
.field .hint { font-size: 11.5px; color: var(--ink-4); margin-top: 8px; }
.form__submit { grid-column: 1 / -1; background: var(--paper); padding: 22px 20px; display: flex; flex-wrap: wrap; gap: 14px; align-items: center; justify-content: space-between; }
.form__submit .hint { font-size: 12px; color: var(--ink-3); max-width: 32em; }

.formpage { display: grid; grid-template-columns: 1fr 340px; gap: 56px; align-items: start; }
.aside-box { border: 1px solid var(--line); padding: 26px 24px; background: var(--paper); }
.aside-box h3 { font-size: 16px; margin-bottom: 16px; }
.aside-box dl { font-size: 13.5px; }
.aside-box dt { font-size: 11px; letter-spacing: .14em; color: var(--ink-4); text-transform: uppercase; margin-top: 16px; }
.aside-box dd { color: var(--ink); font-weight: 700; margin-top: 4px; }
.aside-box dd a { color: var(--ink); }
.aside-box .qr { margin-top: 22px; text-align: center; }
.aside-box .qr img { width: 160px; height: 160px; margin: 0 auto; background: var(--paper-2); }
.aside-box .qr span { font-size: 11.5px; color: var(--ink-4); display: block; margin-top: 10px; }

/* 成功提示 */
.toast {
  display: none; position: fixed; inset: 0; z-index: 90;
  background: rgba(58,58,58,.94); align-items: center; justify-content: center;
}
.toast.is-open { display: flex; }
.toast__box { background: var(--paper); max-width: 420px; width: calc(100% - 48px); padding: 40px 34px; text-align: center; }
.toast__box h3 { font-size: 20px; margin-bottom: 14px; }
.toast__box p { font-size: 13.5px; margin-bottom: 22px; }

/* 图片占位说明 */
.ph-note {
  font-size: 11.5px; color: var(--ink-4); letter-spacing: .06em;
  border: 1px dashed var(--line); padding: 6px 12px; display: inline-block;
}

/* 占位内容可视化开关：默认隐藏。
   给 body 加一个 class 就能一眼看出哪些案例还没替换过：
   在浏览器控制台执行 document.body.classList.add('show-placeholder') */
body.show-placeholder [data-placeholder="true"] { outline: 1px dashed var(--red); outline-offset: 6px; }
body.show-placeholder [data-placeholder="true"]::after {
  content: "占位内容 isPlaceholder";
  position: absolute; right: 0; top: -10px;
  font-size: 10px; letter-spacing: .1em; color: var(--red);
  background: var(--paper); padding: 0 6px;
}
body.show-placeholder .witem { position: relative; }

/* ---------- 滚动淡入（唯一动效） ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.reveal.is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition: none !important; }
}

/* ==========================================================================
   响应式 — 移动端自适应
   ========================================================================== */
@media (max-width: 1100px) {
  .hero h1 { font-size: 42px; }
  .cards4 { grid-template-columns: repeat(2, 1fr); }
  .biz-wide { grid-template-columns: 1fr; gap: 18px; padding: 26px 22px; }
  .biz-wide__list { border-left: 0; padding-left: 0; border-top: 1px solid var(--line); padding-top: 14px; }
  .adv { grid-template-columns: repeat(3, 1fr); }
  .adv__item { border-bottom: 1px solid var(--line); }
  .flow { grid-template-columns: repeat(3, 1fr); }
  .flow__item { border-bottom: 1px solid var(--line); }
  .modgrid { grid-template-columns: repeat(2, 1fr); }
  .collist { grid-template-columns: repeat(3, 1fr); }
  .collist li:nth-child(4n) { border-right: 1px solid var(--line); }
  .collist li:nth-child(3n) { border-right: 0; }
  .wd-body { grid-template-columns: 1fr; gap: 40px; }
  .area-detail { grid-template-columns: 1fr 280px; gap: 40px; }
  .formpage { grid-template-columns: 1fr 300px; gap: 40px; }
  .foot__top { grid-template-columns: 1fr 1fr; }
  .footareas__grid { grid-template-columns: repeat(2, 1fr); }
  .zone-entry--3 { grid-template-columns: 1fr; }
  .wd-meta { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 860px) {
  :root { --sec-y: 60px; --gutter: 20px; --nav-h: 56px; }
  .h1 { font-size: 30px; }
  .h2 { font-size: 24px; }

  .sidebar { display: none; }
  .mobar { display: block; }
  .foot__bottom { padding-bottom: 96px; }

  .nav__toggle { display: block; }
  .nav__menu {
    position: fixed; left: 0; right: 0; top: var(--nav-h); bottom: 0;
    background: var(--ink); flex-direction: column; align-items: stretch;
    gap: 0; padding: 8px 20px 40px; overflow-y: auto;
    display: none;
  }
  .nav.is-open .nav__menu { display: flex; }
  .nav__link { padding: 16px 0; font-size: 15px; border-bottom: 1px solid rgba(255,255,255,.08); }
  .nav__link::after { display: none; }
  /* 手机抽屉里直接展开二级菜单（无法 hover） */
  .nav__has-child { display: flex; flex-direction: column; width: 100%; }
  .nav__has-child > .nav__link { width: 100%; }
  .nav__drop {
    position: static; display: block; min-width: 0; border: 0;
    padding: 0 0 4px; background: transparent;
  }
  .nav__drop a {
    padding: 12px 0 12px 16px; font-size: 14px; white-space: normal;
    border-bottom: 1px solid rgba(255,255,255,.06); color: rgba(255,255,255,.66);
  }
  /* 手机抽屉里「关于我们」子栏目不展开（太长），四个页面改从页脚与首页入口进入 */
  .nav__drop--pc { display: none; }
  .nav__cta { margin-top: 22px; text-align: center; border-color: var(--red); background: var(--red); color: #fff; padding: 14px; font-size: 15px; }

  .hero { min-height: 62vh; }
  .hero__in { padding: 76px 0 44px; }
  .hero .wrap { padding-left: 32px; padding-right: 32px; }
  .hero h1 { font-size: 27px; line-height: 1.38; }
  .hero__sub { font-size: 13.5px; letter-spacing: .04em; }
  .hero__desc { font-size: 13px; }
  .hero__brand { font-size: 12px; margin-top: -16px; }
  .hero__btns .btn { flex: 1 1 46%; padding: 0 14px; font-size: 13.5px; }

  .phero { padding: 44px 0 38px; }
  .phero h1 { font-size: 23px; }

  .cards4 { grid-template-columns: 1fr; }
  .zone-entry { grid-template-columns: 1fr; }
  .zone-entry a { padding: 32px 22px; }
  .zone-entry h3 { font-size: 20px; }

  .adv { grid-template-columns: 1fr; }
  .adv__item { padding: 22px 0; border-right: 0; }
  .adv__item:last-child { border-bottom: 0; }

  .witem { grid-template-columns: 1fr; gap: 14px; }
  .witem__no { font-size: 34px; }
  .witem__tag { position: static; display: inline-block; margin-bottom: 12px; }
  .witem__title { font-size: 16.5px; }

  .wd-head { flex-direction: column; gap: 14px; }
  .wd-head__no { font-size: 40px; }
  .wd-head__txt h1 { font-size: 22px; }
  .wd-conclusion { font-size: 14.5px; }

  .blk { grid-template-columns: 1fr; gap: 16px; padding: 30px 0; }
  .blk__side h3 { font-size: 17px; }
  .collist { grid-template-columns: repeat(2, 1fr); }
  .collist li:nth-child(3n) { border-right: 1px solid var(--line); }
  .collist li:nth-child(2n) { border-right: 0; }
  .scenelist { grid-template-columns: 1fr; }
  .modgrid { grid-template-columns: 1fr; }
  .matcards { grid-template-columns: 1fr; }

  .flow { grid-template-columns: 1fr; }
  .flow__item { padding: 20px 0; border-right: 0; }
  /* 移动端流程图标：同款红色圆形标，缩小一号 */
  .flow__icon,
  .flowbig__no svg {
    width: 38px; height: 38px; padding: 9px;
    margin-bottom: 12px; border-width: 1.3px;
  }
  /* 移动端流程条目：图标与标题同行，文字对齐不跑偏 */
  .flow__item { display: grid; grid-template-columns: 38px 1fr; gap: 4px 14px; align-items: center; }
  .flow__item .flow__icon { grid-row: 1 / 3; margin-bottom: 0; }
  .flow__item h4 { margin-bottom: 4px; font-size: 15.5px; }
  .flow__item p { grid-column: 2; font-size: 13px; }

  .flowbig__row { grid-template-columns: 48px 1fr; gap: 14px; align-items: start; }
  .flowbig__no { font-size: 26px; }
  .flowbig__no svg { margin-bottom: 0; }

  .pitem { grid-template-columns: 1fr; gap: 16px; }
  .pitem h3 { font-size: 16.5px; }
  .post p { font-size: 15px; line-height: 1.95; }

  .quotes { grid-template-columns: 1fr; }
  .areas { grid-template-columns: 1fr; }
  .area-detail { grid-template-columns: 1fr; gap: 30px; }

  .form { grid-template-columns: 1fr; }
  .formpage { grid-template-columns: 1fr; gap: 34px; }
  .form__submit { flex-direction: column; align-items: stretch; text-align: left; }
  .form__submit .btn { width: 100%; }

  .foot { padding-top: 40px; }
  .foot__top { grid-template-columns: 1fr 1fr; gap: 26px 20px; padding-bottom: 30px; }
  .foot__top > .foot__brand { grid-column: 1 / -1; }
  .foot__top > div:nth-child(4) { grid-column: 1 / -1; }
  .foot__top h4 { margin-bottom: 12px; }
  .foot li { margin-bottom: 8px; }
  .footareas__grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .foot__cta .wrap { flex-direction: column; align-items: stretch; }
  .foot__cta .btn { width: 100%; }
  .foot__bottom { flex-direction: column; gap: 6px; font-size: 11.5px; }
  /* 手机端隐藏页脚底部公司信息卡：与上方「联系我们」列完全重复，且窄屏下灰色小字与分隔线显示效果差 */
  .foot__legal { display: none; }
  .hero__hook { font-size: 12.5px; }
  .nsfallback__grid { grid-template-columns: 1fr; gap: 20px; }

  .sec-head { margin-bottom: 30px; }
  .wd-meta { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 400px) {
  .hero h1 { font-size: 25px; }
  .hero__btns { flex-direction: column; }
  .hero__btns .btn { flex: 1 1 100%; }
  .collist { grid-template-columns: 1fr; }
  .collist li { border-right: 0 !important; }
  .wd-meta { grid-template-columns: 1fr; }
}

/* 打印 */
@media print {
  .nav, .sidebar, .mobar, .foot__cta, .wd-cta, .aiwidget, .aiwidget-modal { display: none; }
  body { background: #fff; }
}

/* ==========================================================================
   新增组件：案例项目档案 / VR 全景 / 悬浮加微信（2026-10 第二期）
   ========================================================================== */

/* ---------- 案例详情：项目档案 ---------- */
.wd-archive { border: 1px solid var(--line); background: var(--white); margin-top: 26px; }
.wd-archive__head { padding: 20px 22px 0; }
.wd-archive__head h3 { font-size: 17px; margin-top: 4px; }
.wd-archive__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); margin-top: 16px; }
.wd-archive__grid > div { background: var(--paper); padding: 16px 18px 18px; }
.wd-archive__grid dt { font-size: 12px; color: var(--ink-3); letter-spacing: .08em; margin-bottom: 7px; }
.wd-archive__grid dd { margin: 0; font-size: 13.5px; line-height: 1.85; }
.wd-archive__num { color: var(--red); font-weight: 700; font-size: 15px; font-style: normal; }
@media (max-width: 860px) {
  .wd-archive__grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- 案例详情：VR 全景（vrUrl 为空时不渲染） ---------- */
.wd-vr { margin: 30px 0 0; }
.wd-vr h3 { font-size: 18px; margin-bottom: 8px; }
.wd-vr .lead { margin-bottom: 16px; }
.wd-vr__frame { position: relative; padding-top: 56.25%; border: 1px solid var(--line); background: var(--ink); }
.wd-vr__frame iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }

/* ---------- 右下角悬浮：加微信咨询 ---------- */
.aiwidget { position: fixed; right: 20px; bottom: 20px; z-index: 90; }
.aiwidget.is-hidden { opacity: 0; pointer-events: none; transform: translateY(10px); }
.aiwidget { transition: opacity .25s ease, transform .25s ease; }
.aiwidget__btn {
  display: flex; align-items: center; gap: 9px;
  background: var(--ink); color: var(--white);
  border: none; cursor: pointer;
  padding: 13px 18px; font-size: 14px; font-weight: 700;
  font-family: var(--font); letter-spacing: .02em;
  border-bottom: 3px solid var(--red);
}
.aiwidget__btn:hover { background: #2E2E2E; }
.aiwidget__ico { width: 20px; height: 20px; fill: var(--white); flex: none; }
@media (max-width: 860px) {
  .aiwidget { right: 14px; bottom: 72px; }
  .aiwidget__btn { padding: 11px 15px; font-size: 13px; }
}

/* ---------- 加微信咨询弹窗 ---------- */
.aiwidget-modal { position: fixed; inset: 0; z-index: 120; display: flex; align-items: center; justify-content: center; padding: 20px; }
.aiwidget-modal[hidden] { display: none; }
.aiwidget-modal__mask { position: absolute; inset: 0; background: rgba(58, 58, 58, .55); }
.aiwidget-modal__panel {
  position: relative; background: var(--white); border: 1px solid var(--line);
  width: 100%; max-width: 360px; max-height: 86vh; display: flex; flex-direction: column;
}
.aiwidget-modal__head {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--ink); color: var(--white);
  padding: 13px 16px; font-size: 14.5px; font-weight: 700;
  border-bottom: 3px solid var(--red);
}
.aiwidget-modal__x { background: none; border: none; color: var(--white); font-size: 22px; line-height: 1; cursor: pointer; padding: 0 2px; font-family: var(--font); }
.aiwidget-modal__body { padding: 22px 20px; overflow-y: auto; text-align: center; }
.aiwidget-modal__body img { width: 200px; height: 200px; display: block; margin: 0 auto 14px; border: 1px solid var(--line); }
.aiwidget-modal__body .aiwidget-modal__tip { font-size: 13px; color: var(--ink-2); line-height: 1.85; }
.aiwidget-modal__body .aiwidget-modal__tip b { color: var(--ink); }
.aiwidget-modal__frame { position: relative; width: 100%; height: 62vh; min-height: 320px; border: 1px solid var(--line); }
.aiwidget-modal__frame iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }
.aiwidget-modal__open { display: inline-block; margin-top: 12px; font-size: 13px; color: var(--ink-2); }
.aiwidget-modal__open:hover { color: var(--red); }
.aiwidget-modal--wide .aiwidget-modal__panel { max-width: 520px; }

/* ---------- 作品页标签筛选导航（静态链接，无 JS） ---------- */
.wtag { display: flex; flex-wrap: wrap; gap: 10px; margin: 0 0 28px; }
.wtag__item {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 9px 16px; border: 1px solid var(--line);
  background: var(--white); font-size: 13.5px; color: var(--ink-2);
  text-decoration: none; letter-spacing: .03em;
}
.wtag__item:hover { border-color: var(--ink); color: var(--ink); }
.wtag__item.is-active { border-color: var(--ink); color: var(--ink); font-weight: 700; border-bottom: 2px solid var(--red); }
.wtag__n { font-size: 11.5px; color: var(--ink-3); }
.wtag__item.is-active .wtag__n { color: var(--red); }
@media (max-width: 860px) {
  .wtag { gap: 8px; margin-bottom: 20px; }
  .wtag__item { padding: 8px 13px; font-size: 13px; }
}

/* ---------- 预约类型单选框 / 首页清单模块（2026-10 第三期） ---------- */
button.btn { cursor: pointer; font-family: var(--font); }
.radios { display: flex; flex-wrap: wrap; gap: 10px 22px; padding-top: 2px; }
.radio { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--ink); cursor: pointer; }
.radio input { width: 16px; height: 16px; accent-color: var(--red); flex: none; }

.chk-lead {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px;
  border: 1px solid var(--line); background: var(--white);
  padding: 40px 44px; align-items: center;
}
.chk-lead__txt .en { font-size: 11.5px; letter-spacing: .18em; color: var(--red); font-weight: 700; }
.chk-lead__txt h2 { font-size: 24px; margin: 10px 0 12px; }
.chk-lead__txt p { font-size: 14px; line-height: 1.95; color: var(--ink-2); }
.chk-lead__form .field { margin-bottom: 14px; }
.chk-lead__form .form__submit { margin-top: 18px; }
@media (max-width: 960px) {
  .chk-lead { grid-template-columns: 1fr; padding: 26px 20px; gap: 24px; }
  .chk-lead__txt h2 { font-size: 20px; }
}