/* =========================================================
   源筑别墅设计 · 官方网站
   设计系统源自《源筑别墅设计 · 品牌画册》
   米白底 / 墨蓝字 / 金铜线条 / 宋体标题
   ========================================================= */

/* ---------- Design Tokens ---------- */
:root {
  /* 色板 */
  --c-cream:      #f6f2e8;
  --c-cream-2:    #fbf8f1;
  --c-cream-3:    #efe7d5;
  --c-cream-4:    #e6dcc6;
  --c-ink:        #16263f;
  --c-ink-2:      #223350;
  --c-ink-3:      #33445f;
  --c-body:       #45505f;
  --c-muted:      #767c86;
  --c-gold:       #a98b58;
  --c-gold-2:     #c0a46b;
  --c-gold-soft:  #e8dcc2;
  --c-white:      #ffffff;
  --c-line:       rgba(22, 38, 63, .13);
  --c-line-gold:  rgba(169, 139, 88, .34);

  /* 字体 */
  --f-serif: "Noto Serif SC", "Source Han Serif SC", "Source Han Serif CN",
             "Songti SC", "STSong", "SimSun", Georgia, serif;
  --f-sans:  "Noto Sans SC", "Source Han Sans SC", "PingFang SC",
             "Microsoft YaHei", "Hiragino Sans GB", -apple-system,
             "Segoe UI", Roboto, sans-serif;

  /* 版式 */
  --w-page:   1240px;
  --w-narrow: 960px;
  --pad-x:    clamp(20px, 4.4vw, 64px);
  --sec-y:    clamp(44px, 4.6vw, 76px);

  --radius:   4px;
  --radius-lg:8px;
  --shadow-sm: 0 1px 2px rgba(22,38,63,.05), 0 6px 18px -10px rgba(22,38,63,.16);
  --shadow-md: 0 2px 6px rgba(22,38,63,.05), 0 22px 48px -22px rgba(22,38,63,.26);
  --shadow-lg: 0 30px 70px -30px rgba(22,38,63,.36);

  --ease: cubic-bezier(.22,.61,.36,1);
  --dur:  .55s;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--c-cream);
  color: var(--c-body);
  font-family: var(--f-sans);
  font-size: 16px;
  line-height: 1.85;
  letter-spacing: .015em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4 { font-family: var(--f-serif); color: var(--c-ink); font-weight: 600; margin: 0; line-height: 1.28; letter-spacing: .01em; }
p { margin: 0 0 1.05em; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
:focus-visible { outline: 2px solid var(--c-gold); outline-offset: 3px; border-radius: 2px; }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--w-page); margin-inline: auto; padding-inline: var(--pad-x); }
.wrap--narrow { max-width: var(--w-narrow); }
.section { padding-block: var(--sec-y); position: relative; }
.section--cream2 { background: var(--c-cream-2); }
.section--cream3 { background: var(--c-cream-3); }
.section--ink    { background: var(--c-ink); color: rgba(255,255,255,.76); }
.section--ink h2, .section--ink h3, .section--ink h4 { color: #fff; }
.section--tight { padding-block: clamp(48px, 5.5vw, 88px); }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 999;
  background: var(--c-ink); color: #fff; padding: 10px 18px; border-radius: 4px;
  transition: top .2s var(--ease);
}
.skip-link:focus { top: 14px; }

/* ---------- Section heading ---------- */
.eyebrow {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--f-sans);
  font-size: 12.5px; font-weight: 500; letter-spacing: .3em;
  text-transform: uppercase; color: var(--c-gold);
  margin-bottom: 20px;
}
.eyebrow .num {
  font-family: var(--f-serif); font-size: 15px; letter-spacing: .08em;
  color: var(--c-gold); opacity: .95;
}
.eyebrow::after {
  content: ""; flex: 1; max-width: 76px; height: 1px;
  background: linear-gradient(90deg, var(--c-line-gold), transparent);
}
.section--ink .eyebrow, .section--ink .eyebrow .num { color: var(--c-gold-2); }

.sec-title { font-size: clamp(28px, 3.5vw, 46px); letter-spacing: .01em; }
.sec-title--xl { font-size: clamp(32px, 4.4vw, 58px); }
.sec-sub {
  margin-top: 18px; font-size: clamp(15px, 1.25vw, 17px);
  color: var(--c-muted); max-width: 62ch; line-height: 1.95;
}
.section--ink .sec-sub { color: rgba(255,255,255,.62); }
.sec-lead {
  margin-top: 22px; font-size: clamp(15px, 1.3vw, 18px);
  color: var(--c-muted); max-width: 64ch; line-height: 1.95;
}
.rule {
  width: 54px; height: 2px; background: var(--c-gold);
  margin-top: 26px; border-radius: 2px;
}
.head-block { margin-bottom: clamp(28px, 3vw, 44px); }
.head-block--center { text-align: center; }
.head-block--center .eyebrow { justify-content: center; }
.head-block--center .rule { margin-inline: auto; }
.head-block--center .sec-sub { margin-inline: auto; }

.label-en {
  font-family: var(--f-sans); font-size: 11.5px; font-weight: 500;
  letter-spacing: .26em; text-transform: uppercase; color: var(--c-gold);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 30px; border-radius: 3px;
  font-size: 15px; font-weight: 500; letter-spacing: .06em;
  transition: all .32s var(--ease); white-space: nowrap; position: relative;
}
.btn svg { width: 17px; height: 17px; flex: none; }
.btn--primary { background: var(--c-ink); color: #fff; box-shadow: var(--shadow-sm); }
.btn--primary:hover { background: var(--c-ink-2); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--gold { background: var(--c-gold); color: #fff; }
.btn--gold:hover { background: #977a4c; transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--ghost { border: 1px solid var(--c-line); color: var(--c-ink); background: transparent; }
.btn--ghost:hover { border-color: var(--c-gold); color: var(--c-gold); transform: translateY(-2px); }
.btn--light { background: #fff; color: var(--c-ink); }
.btn--light:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn--outline-light { border: 1px solid rgba(255,255,255,.34); color: #fff; }
.btn--outline-light:hover { border-color: var(--c-gold-2); color: var(--c-gold-2); transform: translateY(-2px); }
.btn--block { width: 100%; }

.txt-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 14.5px; font-weight: 500; letter-spacing: .06em;
  color: var(--c-ink); border-bottom: 1px solid var(--c-line-gold);
  padding-bottom: 3px; transition: all .3s var(--ease);
}
.txt-link:hover { color: var(--c-gold); gap: 13px; }
.txt-link svg { width: 15px; height: 15px; }

/* =========================================================
   Header
   ========================================================= */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 130;
  padding-block: 18px; transition: all .4s var(--ease);
}
.site-header::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: rgba(251,248,241,.96);
  border-bottom: 1px solid var(--c-line);
  transition: all .4s var(--ease);
}
.site-header.is-stuck { padding-block: 11px; }
.site-header.is-stuck::before {
  background: rgba(251,248,241,.94);
  backdrop-filter: saturate(150%) blur(14px);
  border-bottom-color: var(--c-line);
}
.header-inner { display: flex; align-items: center; gap: 26px; }
.brand { display: flex; align-items: center; flex: none; position: relative; z-index: 140; }
.brand img { height: 46px; width: auto; transition: height .4s var(--ease); }
.site-header.is-stuck .brand img { height: 38px; }

.nav { margin-left: auto; display: flex; align-items: center; gap: 2px; }
.nav a {
  position: relative; padding: 9px 12px; font-size: 14.5px; font-weight: 500;
  color: var(--c-ink-3); letter-spacing: .05em; transition: color .28s var(--ease);
  white-space: nowrap;
}
.nav a::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: 2px; height: 1.5px;
  background: var(--c-gold); transform: scaleX(0); transform-origin: left;
  transition: transform .34s var(--ease);
}
.nav a:hover, .nav a.is-active { color: var(--c-ink); }
.nav a:hover::after, .nav a.is-active::after { transform: scaleX(1); }

.header-tel {
  display: inline-flex; align-items: center; gap: 9px; flex: none;
  padding: 10px 18px; border: 1px solid var(--c-line-gold); border-radius: 3px;
  font-size: 14.5px; font-weight: 600; color: var(--c-ink); letter-spacing: .04em;
  transition: all .3s var(--ease); background: rgba(255,255,255,.55);
  position: relative; z-index: 140;
}
.header-tel svg { width: 16px; height: 16px; color: var(--c-gold); }
.header-tel:hover { background: var(--c-ink); color: #fff; border-color: var(--c-ink); }
.header-tel:hover svg { color: var(--c-gold-2); }
.header-tel small { font-size: 10.5px; letter-spacing: .18em; color: var(--c-gold); display: block; line-height: 1; margin-bottom: 2px; }

.nav-toggle {
  display: none; width: 44px; height: 44px; margin-left: auto;
  border: 1px solid var(--c-line); border-radius: 3px; position: relative;
  background: rgba(255,255,255,.55); z-index: 140;
}
.nav-toggle span {
  position: absolute; left: 12px; right: 12px; height: 1.6px; background: var(--c-ink);
  transition: all .3s var(--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-toggle.is-open span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* =========================================================
   Hero
   ========================================================= */
/* 高度由内容决定：左侧文字块与右侧图片自动等高，图片不再撑满整屏 */
.hero { position: relative; display: flex; align-items: stretch; background: var(--c-cream-2); overflow: hidden; }
.hero__grid { display: grid; grid-template-columns: 1.1fr 1fr 0.3fr; width: 100%; align-items: stretch; }
.hero__panel {
  position: relative; display: flex; flex-direction: column; justify-content: center;
  padding: 136px var(--pad-x) 60px max(var(--pad-x), calc((100vw - var(--w-page)) / 2 + var(--pad-x)));
}
.hero__bgmark {
  position: absolute; right: -6%; top: 52%; transform: translateY(-50%);
  font-family: var(--f-serif); font-size: clamp(220px, 27vw, 420px); font-weight: 700;
  color: var(--c-ink); opacity: .022; line-height: 1; pointer-events: none; user-select: none; z-index: 0;
}
.hero__panel > * { position: relative; z-index: 1; }
.hero__panel > .hero__bgmark { position: absolute; z-index: 0; }
.hero__tag {
  display: inline-flex; align-items: center; gap: 10px; align-self: flex-start;
  padding: 9px 18px; border: 1px solid rgba(169,139,88,.5); border-radius: 100px;
  font-size: 13px; letter-spacing: .14em; color: #7d6435; font-weight: 600;
  background: rgba(255,255,255,.72); margin-bottom: 18px;
}
.hero__tag i { width: 6px; height: 6px; border-radius: 50%; background: var(--c-gold); display: block; flex: none; }
.hero h1 {
  font-size: clamp(34px, 4vw, 58px); line-height: 1.16; letter-spacing: .03em;
  color: var(--c-ink); font-weight: 700; margin-bottom: 22px;
}
.hero h1 .gold { color: var(--c-gold); }
.hero__en {
  font-family: var(--f-sans); font-size: clamp(10.5px, 1vw, 12.5px); font-weight: 500;
  letter-spacing: .3em; text-transform: uppercase; color: var(--c-gold);
  margin-bottom: 30px; line-height: 1.9;
}
.hero__desc {
  font-size: clamp(15.5px, 1.35vw, 18px); color: var(--c-body);
  max-width: 44ch; line-height: 2; margin-bottom: 24px;
}
.hero__desc strong { color: var(--c-ink); font-weight: 600; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 26px; }
/* Hero 优势：放大为徽章式标签 */
.hero__meta {
  display: flex; flex-wrap: wrap; gap: 12px; padding-top: 20px;
  border-top: 1px solid var(--c-line);
}
.hero__meta span {
  display: inline-flex; align-items: center; gap: 11px;
  padding: 12px 20px 12px 14px; border-radius: 100px;
  background: rgba(255,255,255,.72); border: 1px solid var(--c-line);
  font-size: clamp(14.5px, 1.05vw, 16px); font-weight: 600; color: var(--c-ink);
  letter-spacing: .02em; line-height: 1.25;
  transition: all .32s var(--ease);
}
.hero__meta span:hover {
  border-color: var(--c-line-gold); background: #fff;
  transform: translateY(-2px); box-shadow: var(--shadow-sm);
}
.hero__meta svg {
  width: 15px; height: 15px; padding: 5px; box-sizing: content-box;
  border-radius: 50%; background: rgba(169,139,88,.16); color: var(--c-gold); flex: none;
}

/* 图片上下填满文字区（和文字等高，边界对齐），图片内容填充整个矩形，不变形 */
.hero__media {
  position: relative; overflow: hidden;
  align-self: stretch;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}
.hero__media img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: 50% 46%;
}
.hero__media::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(246,242,232,.55) 0%, rgba(246,242,232,0) 22%);
  pointer-events: none;
}
.hero__badge {
  position: absolute; left: 0; bottom: 0; z-index: 2;
  background: rgba(16,28,48,.96); backdrop-filter: blur(6px);
  color: #fff; padding: 22px 30px; max-width: 320px;
  border-top-right-radius: var(--radius-lg);
  box-shadow: 0 8px 30px rgba(16,28,48,.35);
}
.hero__badge b {
  font-family: var(--f-serif); font-size: 38px; display: block; line-height: 1;
  color: #e9c987; text-shadow: 0 1px 12px rgba(233,201,135,.35);
}
.hero__badge span { font-size: 13px; letter-spacing: .08em; color: #f7eeda; font-weight: 600; display: block; margin-top: 8px; }

.scroll-hint {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%); z-index: 3;
  display: flex; flex-direction: column; align-items: center; gap: 9px;
  font-size: 10px; letter-spacing: .28em; text-transform: uppercase; color: var(--c-gold);
}
.scroll-hint i { display: block; width: 1px; height: 40px; background: linear-gradient(180deg, var(--c-gold), transparent); animation: sh 2.1s var(--ease) infinite; }
@keyframes sh { 0%,100% { opacity: .35; transform: scaleY(.6); } 50% { opacity: 1; transform: scaleY(1); } }

/* =========================================================
   Trust bar
   ========================================================= */
.trustbar { background: var(--c-ink); color: rgba(255,255,255,.8); }
.trustbar__grid {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 1px; background: rgba(255,255,255,.09);
}
.trustbar__item {
  background: var(--c-ink); padding: 30px 26px; text-align: center; transition: background .35s var(--ease);
}
.trustbar__item:hover { background: var(--c-ink-2); }
.trustbar__item b {
  font-family: var(--f-serif); font-size: clamp(26px, 2.7vw, 36px); color: #fff;
  display: block; line-height: 1; letter-spacing: .01em;
}
.trustbar__item b em { font-style: normal; font-size: .55em; color: var(--c-gold-2); margin-left: 2px; }
.trustbar__item span { display: block; font-size: 12.5px; letter-spacing: .1em; margin-top: 11px; opacity: .66; }

/* =========================================================
   Split (text + image)
   ========================================================= */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(38px, 5.5vw, 92px); align-items: center; }
.split--reverse .split__media { order: -1; }
.split__media { position: relative; }
.split__media img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-md); position: relative; z-index: 1; }
.split__media--frame::before {
  content: ""; position: absolute; inset: 22px -22px -22px 22px;
  border: 1px solid var(--c-line-gold); border-radius: var(--radius); z-index: 0;
}
.split__media--badge .badge-float {
  position: absolute; z-index: 3; bottom: -20px; left: -20px;
  background: var(--c-cream-2); border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 18px 24px; box-shadow: var(--shadow-md);
}
.split__media--badge .badge-float b { font-family: var(--f-serif); font-size: 28px; color: var(--c-ink); display: block; line-height: 1; }
.split__media--badge .badge-float span { font-size: 12px; color: var(--c-gold); letter-spacing: .12em; }

/* 源 / 筑 / 家 */
.char-list { display: grid; gap: 2px; margin-top: 34px; }
.char-item {
  display: grid; grid-template-columns: 76px 1fr; gap: 20px; align-items: center;
  padding: 20px 0; border-top: 1px solid var(--c-line);
}
.char-item:last-child { border-bottom: 1px solid var(--c-line); }
.char-item__ch {
  font-family: var(--f-serif); font-size: 40px; font-weight: 700; color: var(--c-ink);
  line-height: 1; text-align: center; letter-spacing: 0;
}
.char-item__body h4 { font-size: 15.5px; margin-bottom: 4px; letter-spacing: .05em; }
.char-item__body p { font-size: 14.5px; color: var(--c-muted); margin: 0; line-height: 1.8; }

/* =========================================================
   Cards
   ========================================================= */
.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--c-cream-2); border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: 34px 30px; transition: all .4s var(--ease); position: relative; overflow: hidden;
}
.card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 3px; height: 0;
  background: var(--c-gold); transition: height .45s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--c-line-gold); }
.card:hover::before { height: 100%; }
.card__num {
  font-family: var(--f-serif); font-size: 13px; letter-spacing: .2em; color: var(--c-gold);
  display: block; margin-bottom: 16px;
}
.card h3 { font-size: 19px; margin-bottom: 10px; letter-spacing: .03em; }
.card p { font-size: 14.5px; color: var(--c-muted); margin: 0; line-height: 1.85; }
.card--ink { background: rgba(255,255,255,.04); border-color: rgba(255,255,255,.13); }
.card--ink p { color: rgba(255,255,255,.6); }

.card--media { padding: 0; overflow: hidden; }
.card--media .card__img { position: relative; height: 180px; overflow: hidden; }
.card--media .card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.card--media:hover .card__img img { transform: scale(1.06); }
.card--media .card__body { padding: 26px 26px 30px; }

/* 业务卡片 · 可点击进入详情 */
.card--link { display: block; color: inherit; }
.card__more {
  display: inline-flex; align-items: center; gap: 7px; margin-top: 20px;
  font-size: 13.5px; font-weight: 600; letter-spacing: .08em; color: var(--c-ink);
  border-bottom: 1px solid var(--c-line-gold); padding-bottom: 4px;
  transition: all .32s var(--ease);
}
.card__more svg { width: 14px; height: 14px; transition: transform .32s var(--ease); }
.card--link:hover .card__more { color: var(--c-gold); }
.card--link:hover .card__more svg { transform: translateX(3px); }

/* 三根支柱 */
.pillar { position: relative; padding: 40px 32px 44px; border: 1px solid var(--c-line); background: var(--c-cream-2); transition: all .4s var(--ease); }
.pillar__no {
  font-family: var(--f-serif); font-size: 15px; font-weight: 600; letter-spacing: .18em;
  color: var(--c-gold); display: block; margin-bottom: 22px;
}
.pillar h3 { font-size: 22px; margin-bottom: 12px; }
.pillar h3 small { display: block; font-family: var(--f-sans); font-size: 11px; letter-spacing: .24em; text-transform: uppercase; color: var(--c-gold); margin-top: 8px; font-weight: 500; }
.pillar p { font-size: 14.5px; color: var(--c-muted); margin: 0; }
.pillar:hover { background: var(--c-ink); border-color: var(--c-ink); transform: translateY(-5px); box-shadow: var(--shadow-md); }
.pillar:hover h3, .pillar:hover .pillar__no { color: #fff; }
.pillar:hover p { color: rgba(255,255,255,.66); }

/* 价值观 */
.value { padding: 34px 28px 36px; border-top: 2px solid var(--c-ink); transition: all .4s var(--ease); background: transparent; }
.value:hover { background: var(--c-cream-2); box-shadow: var(--shadow-sm); }
.value h3 { font-size: 30px; letter-spacing: .08em; margin-bottom: 6px; }
.value .en { font-size: 10.5px; letter-spacing: .26em; text-transform: uppercase; color: var(--c-gold); display: block; margin-bottom: 18px; }
.value p { font-size: 14.5px; color: var(--c-muted); margin: 0; }
.section--ink .value { border-top-color: var(--c-gold); }
.section--ink .value p { color: rgba(255,255,255,.62); }
.section--ink .value .en { color: var(--c-gold-2); }
.section--ink .value:hover { background: rgba(255,255,255,.045); box-shadow: none; }

/* 价值观 · 并入口碑见证版块 */
.values-row { margin-top: clamp(46px, 5.2vw, 76px); }
.values-row__head { text-align: center; margin-bottom: clamp(30px, 3.4vw, 48px); }
.values-row__head h3 { font-size: clamp(20px, 2.2vw, 27px); letter-spacing: .03em; }
.values-row__head .label-en { display: block; margin-top: 10px; }
.values-note {
  margin: clamp(36px, 4.2vw, 58px) 0 0; text-align: center;
  font-family: var(--f-serif); font-size: clamp(16px, 1.7vw, 21px);
  color: #fff; letter-spacing: .05em; line-height: 1.7;
}

/* 承诺 / 特色 */
.promise { display: grid; grid-template-columns: 54px 1fr; gap: 20px; padding: 26px 0; border-bottom: 1px solid var(--c-line); transition: padding .35s var(--ease); }
.promise:first-child { border-top: 1px solid var(--c-line); }
.promise:hover { padding-left: 12px; }
.promise__no { font-family: var(--f-serif); font-size: 26px; font-weight: 600; color: var(--c-gold-soft); line-height: 1; transition: color .35s var(--ease); }
.promise:hover .promise__no { color: var(--c-gold); }
.promise h4 { font-size: 17px; margin-bottom: 6px; letter-spacing: .03em; }
.promise p { font-size: 14.5px; color: var(--c-muted); margin: 0; }

/* 六步流程 */
.steps { display: grid; grid-template-columns: repeat(6, 1fr); gap: 0; counter-reset: s; }
.step { position: relative; padding: 30px 20px 30px 0; }
.step::before {
  content: ""; position: absolute; left: 0; top: 42px; width: 100%; height: 1px; background: var(--c-line); z-index: 0;
}
.step:last-child::before { width: 0; }
.step__dot {
  position: relative; z-index: 1; width: 34px; height: 34px; border-radius: 50%;
  background: var(--c-cream); border: 1px solid var(--c-line-gold);
  display: grid; place-items: center; font-family: var(--f-serif); font-size: 13px;
  color: var(--c-gold); font-weight: 600; margin-bottom: 20px; transition: all .35s var(--ease);
}
.step:hover .step__dot { background: var(--c-ink); color: #fff; border-color: var(--c-ink); }
.step h4 { font-size: 15.5px; margin-bottom: 6px; }
.step p { font-size: 13px; color: var(--c-muted); margin: 0; line-height: 1.7; }
.section--cream2 .step__dot { background: var(--c-cream-2); }
.section--ink .step__dot { background: var(--c-ink); }
.section--ink .step::before { background: rgba(255,255,255,.14); }
.section--ink .step p { color: rgba(255,255,255,.55); }
.section--ink .step h4 { color: #fff; }

/* 触点 */
.touch { display: flex; align-items: center; gap: 22px; padding: 22px 0; border-bottom: 1px solid var(--c-line); }
.touch:first-child { border-top: 1px solid var(--c-line); }
.touch__no { font-family: var(--f-serif); font-size: 15px; letter-spacing: .1em; color: var(--c-gold); flex: none; width: 34px; }
.touch__name { font-family: var(--f-serif); font-size: 17px; color: var(--c-ink); font-weight: 600; flex: none; min-width: 108px; }
.touch__line { flex: 1; height: 1px; background: var(--c-line); }
.touch__tag {
  flex: none; font-size: 13px; letter-spacing: .12em; color: var(--c-gold);
  border: 1px solid var(--c-line-gold); border-radius: 100px; padding: 5px 15px;
}
.section--ink .touch__name { color: #fff; }
.section--ink .touch { border-color: rgba(255,255,255,.13); }
.section--ink .touch__line { background: rgba(255,255,255,.14); }

/* 陷阱 */
.trap { padding: 30px 28px; background: rgba(22,38,63,.045); border-left: 2px solid var(--c-gold); border-radius: 0 var(--radius) var(--radius) 0; }
.trap__no { font-family: var(--f-serif); font-size: 13px; letter-spacing: .2em; color: var(--c-gold); display: block; margin-bottom: 12px; }
.trap h3 { font-size: 19px; margin-bottom: 10px; }
.trap p { font-size: 14.5px; color: var(--c-muted); margin: 0; }
.trap strong { color: var(--c-ink); }

/* 报价 */
.price {
  border: 1px solid var(--c-line); border-radius: var(--radius); background: var(--c-cream-2);
  padding: 32px 30px 34px; display: grid; grid-template-columns: 120px 1fr; gap: 26px; align-items: center;
  transition: all .4s var(--ease);
}
.price:hover { border-color: var(--c-line-gold); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.price__diagram { background: rgba(22,38,63,.03); border-radius: var(--radius); padding: 12px; }
.price__diagram img { width: 100%; height: auto; }
.price h3 { font-size: 21px; margin-bottom: 8px; }
.price__amount { font-family: var(--f-serif); color: var(--c-gold); font-size: clamp(26px, 2.6vw, 34px); font-weight: 600; letter-spacing: .01em; line-height: 1; margin-bottom: 12px; }
.price__amount small { font-family: var(--f-sans); font-size: 13px; color: var(--c-muted); letter-spacing: .08em; margin-left: 6px; font-weight: 400; }
.price p { font-size: 14px; color: var(--c-muted); margin: 0; }
.price-note { display: flex; flex-direction: column; gap: 18px; }
.price-note__item { padding-left: 18px; border-left: 2px solid var(--c-gold); }
.price-note__item b { display: block; font-family: var(--f-serif); font-size: 16px; color: var(--c-ink); margin-bottom: 3px; }
.price-note__item span { font-size: 13px; color: var(--c-muted); }

/* =========================================================
   区域 (关中网络)
   ========================================================= */
.area { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(36px, 5vw, 84px); align-items: center; }
.area__map { position: relative; }
.area__map svg { width: 100%; height: auto; }
.area-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 26px; }
.area-list span {
  padding: 8px 18px; border: 1px solid var(--c-line); border-radius: 100px;
  font-size: 14px; color: var(--c-ink-3); letter-spacing: .06em; transition: all .3s var(--ease);
}
.area-list span:hover { border-color: var(--c-gold); color: var(--c-gold); }
.cred-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; margin-top: 34px; }
.cred {
  background: var(--c-cream-2); padding: 24px 22px; border: 1px solid var(--c-line);
  transition: all .35s var(--ease);
}
.cred:hover { border-color: var(--c-line-gold); background: #fff; }
.cred b { display: block; font-family: var(--f-serif); font-size: 16px; color: var(--c-ink); margin-bottom: 5px; }
.cred span { font-size: 13.5px; color: var(--c-muted); }

/* =========================================================
   团队
   ========================================================= */
.team { display: grid; grid-template-columns: 360px 1fr; gap: clamp(34px, 4.5vw, 70px); align-items: start; }
.founder { position: relative; margin: 0; }
/* 3:4 人像比例：比 4:5 略放宽取景，展示更多人物与场景 */
.founder img {
  width: 100%; aspect-ratio: 3 / 4; object-fit: cover; object-position: 50% 8%;
  border-radius: var(--radius); box-shadow: var(--shadow-md);
}
.team__side { display: grid; gap: clamp(26px, 3vw, 40px); align-content: start; }
.founder__cap { padding-left: 20px; border-left: 2px solid var(--c-gold); }
.founder__cap b { display: block; font-family: var(--f-serif); font-size: 26px; color: var(--c-ink); letter-spacing: .08em; }
.founder__cap .en { font-size: 10.5px; letter-spacing: .24em; text-transform: uppercase; color: var(--c-gold); display: block; margin: 6px 0 16px; }
.founder__cap ul { display: grid; gap: 10px; }
.founder__cap li { font-size: 15px; color: var(--c-body); padding-left: 18px; position: relative; line-height: 1.8; }
.founder__cap li::before { content: ""; position: absolute; left: 0; top: .72em; width: 8px; height: 1px; background: var(--c-gold); }

.groups { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2px; }
.group { background: var(--c-cream-2); border: 1px solid var(--c-line); padding: 26px 24px; transition: all .35s var(--ease); }
.group:hover { border-color: var(--c-line-gold); background: #fff; }
.group b { display: block; font-family: var(--f-serif); font-size: 16.5px; color: var(--c-ink); margin-bottom: 8px; }
.group p { font-size: 13.5px; color: var(--c-muted); margin: 0; line-height: 1.8; }

.craft-media { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: clamp(38px, 4vw, 58px); }
.craft-item { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); margin: 0; }
.craft-item img { width: 100%; height: 320px; object-fit: cover; transition: transform .8s var(--ease); }
.craft-item:hover img { transform: scale(1.05); }
.craft-item figcaption {
  position: absolute; inset: auto 0 0 0; padding: 34px 22px 20px;
  background: linear-gradient(0deg, rgba(22,38,63,.9), transparent);
  color: #fff; font-size: 14.5px; letter-spacing: .06em;
}
.craft-item figcaption small { display: block; font-size: 10.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--c-gold-2); margin-bottom: 5px; }

/* =========================================================
   案例
   ========================================================= */
.case-grid { display: grid; grid-template-columns: 1.4fr 1fr; grid-template-rows: repeat(2, minmax(300px, auto)); gap: 22px; }
.case { position: relative; border-radius: var(--radius); overflow: hidden; min-height: 300px; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--c-line); }
.case img { position: relative; width: 100%; height: 240px; object-fit: cover; flex: none; transition: transform .9s var(--ease); }
.case:hover img { transform: scale(1.04); }
.case::after { display: none; }
.case__body { position: relative; z-index: 2; padding: 22px 26px 24px; display: flex; flex-direction: column; justify-content: flex-start; height: auto; flex: 1; color: var(--c-ink); }
.case__tag { font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: var(--c-gold); margin-bottom: 12px; }
.case__body h3 { color: var(--c-ink); font-size: 22px; margin-bottom: 10px; letter-spacing: .04em; }
.case__body p { font-size: 13.5px; color: var(--c-muted); margin: 0; line-height: 1.8; }
.case__spec { font-size: 13px; color: var(--c-gold-2); margin-top: 12px; letter-spacing: .06em; }
.case--tall { grid-row: 1 / span 2; min-height: 0; }
.case__more {
  margin-top: 16px;
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 18px; border-radius: 100px;
  background: var(--c-ink); color: #fff;
  font-size: 13px; font-weight: 600; letter-spacing: .04em;
  transition: all .3s var(--ease);
}
.case__more svg { width: 13px; height: 13px; }
.case:hover .case__more { background: var(--c-gold); color: #fff; }

/* 精装修 */
.style-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.style-card { position: relative; border-radius: var(--radius); overflow: hidden; }
.style-card img { width: 100%; height: 420px; object-fit: cover; transition: transform .9s var(--ease); }
.style-card:hover img { transform: scale(1.05); }
.style-card__body { position: absolute; inset: auto 0 0 0; padding: 40px 28px 26px; background: linear-gradient(0deg, rgba(15,25,40,.88), transparent); color: #fff; }
.style-card__body small { font-size: 11px; letter-spacing: .22em; text-transform: uppercase; color: var(--c-gold-2); }
.style-card__body h3 { color: #fff; font-size: 21px; margin: 8px 0 8px; }
.style-card__body p { font-size: 13.5px; color: rgba(255,255,255,.76); margin: 0; }

/* =========================================================
   口碑
   ========================================================= */
.quote { text-align: center; }
.quote__mark { font-family: var(--f-serif); font-size: 84px; line-height: .6; color: var(--c-gold); opacity: .5; display: block; margin-bottom: 26px; }
.quote p { font-family: var(--f-serif); font-size: clamp(22px, 2.7vw, 34px); color: #fff; line-height: 1.7; margin-bottom: 22px; letter-spacing: .03em; }
.quote .en { font-size: 11px; letter-spacing: .28em; text-transform: uppercase; color: var(--c-gold-2); }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: rgba(255,255,255,.1); margin-top: clamp(48px, 5vw, 78px); }
.stat { background: var(--c-ink); padding: 40px 26px; text-align: center; transition: background .35s var(--ease); }
.stat:hover { background: var(--c-ink-2); }
.stat b { font-family: var(--f-serif); font-size: clamp(38px, 4.4vw, 56px); color: #fff; display: block; line-height: 1; }
.stat b em { font-style: normal; font-size: .5em; color: var(--c-gold-2); }
.stat span { display: block; font-size: 13.5px; letter-spacing: .1em; color: rgba(255,255,255,.6); margin-top: 14px; }

.family-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 20px; }
.family { position: relative; border-radius: var(--radius); overflow: hidden; }
.family img { width: 100%; height: 260px; object-fit: cover; object-position: 50% 35%; }
.family figcaption { padding: 16px 4px 0; font-size: 14px; color: var(--c-ink-3); letter-spacing: .04em; }
.family figcaption small { display: block; font-size: 12px; color: var(--c-muted); margin-top: 4px; letter-spacing: .06em; }

/* =========================================================
   预约 / 联系
   ========================================================= */
.book { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(36px, 5vw, 80px); align-items: center; }
.benefit { display: grid; grid-template-columns: 60px 1fr; gap: 22px; padding: 26px 0; border-bottom: 1px solid var(--c-line); }
.benefit:first-child { border-top: 1px solid var(--c-line); }
.benefit__no { font-family: var(--f-serif); font-size: 30px; font-weight: 600; color: var(--c-gold-soft); line-height: 1; }
.benefit h4 { font-size: 18px; margin-bottom: 6px; }
.benefit p { font-size: 14.5px; color: var(--c-muted); margin: 0; }
.section--ink .benefit { border-color: rgba(255,255,255,.13); }
.section--ink .benefit p { color: rgba(255,255,255,.6); }

.contact-card {
  background: var(--c-cream-2); border: 1px solid var(--c-line); border-radius: var(--radius);
  padding: clamp(30px, 3.4vw, 48px); box-shadow: var(--shadow-md);
}
.contact-card__tel {
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding-bottom: 26px; border-bottom: 1px solid var(--c-line); margin-bottom: 26px; flex-wrap: wrap;
}
.contact-card__tel .lbl { font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--c-gold); display: block; margin-bottom: 8px; }
.contact-card__tel a { font-family: var(--f-serif); font-size: clamp(28px, 3.4vw, 42px); color: var(--c-ink); font-weight: 600; letter-spacing: .02em; transition: color .3s var(--ease); }
.contact-card__tel a:hover { color: var(--c-gold); }
.info-list { display: grid; gap: 18px; }
.info { display: grid; grid-template-columns: 24px 1fr; gap: 14px; align-items: start; }
.info svg { width: 18px; height: 18px; color: var(--c-gold); margin-top: 5px; }
.info b { display: block; font-size: 12px; letter-spacing: .16em; text-transform: uppercase; color: var(--c-muted); margin-bottom: 3px; font-weight: 500; }
.info span { font-size: 15px; color: var(--c-ink); line-height: 1.7; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }

/* =========================================================
   Footer
   ========================================================= */
.site-footer { background: #101c30; color: rgba(255,255,255,.6); padding-top: clamp(56px, 6vw, 88px); }
.footer__top { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: clamp(30px, 4vw, 60px); padding-bottom: 52px; border-bottom: 1px solid rgba(255,255,255,.1); }
.footer__brand img { height: 44px; width: auto; margin-bottom: 22px; }
.footer__brand p { font-family: var(--f-serif); font-size: 19px; color: #fff; letter-spacing: .12em; margin-bottom: 10px; }
.footer__brand .en { font-size: 10px; letter-spacing: .26em; text-transform: uppercase; color: var(--c-gold-2); margin-bottom: 18px; }
.footer__brand span.desc { font-size: 13.5px; line-height: 1.9; }
.footer__col h4 { font-family: var(--f-sans); font-size: 13px; letter-spacing: .18em; text-transform: uppercase; color: #fff; margin-bottom: 20px; font-weight: 600; }
.footer__col ul { display: grid; gap: 11px; }
.footer__col a, .footer__col li { font-size: 14px; transition: color .3s var(--ease); }
.footer__col a:hover { color: var(--c-gold-2); }
.footer__col .f-tel { font-family: var(--f-serif); font-size: 21px; color: #fff; letter-spacing: .04em; }
.footer__bottom { display: flex; flex-wrap: wrap; gap: 12px 26px; align-items: center; justify-content: space-between; padding-block: 26px; font-size: 12.5px; }
.footer__bottom .lic { color: rgba(255,255,255,.42); }
.footer__bottom nav { display: flex; flex-wrap: wrap; gap: 20px; }

/* Back to top */
.to-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 90;
  width: 46px; height: 46px; border-radius: 50%; background: var(--c-ink); color: #fff;
  display: grid; place-items: center; box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden; transform: translateY(14px); transition: all .4s var(--ease);
}
.to-top.is-show { opacity: 1; visibility: visible; transform: none; }
.to-top:hover { background: var(--c-gold); }
.to-top svg { width: 18px; height: 18px; }

/* =========================================================
   动效
   ========================================================= */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .85s var(--ease), transform .85s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-d="1"] { transition-delay: .09s; }
.reveal[data-d="2"] { transition-delay: .18s; }
.reveal[data-d="3"] { transition-delay: .27s; }
.reveal[data-d="4"] { transition-delay: .36s; }
.reveal[data-d="5"] { transition-delay: .45s; }

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 1120px) {
  .nav { display: none; }
  .nav-toggle { display: block; }
  .header-tel { margin-left: auto; }
  .nav-toggle { margin-left: 12px; }
}
@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero__gap { display: none; }
  .hero__panel { padding: 124px var(--pad-x) 64px; }
  .hero__media { width: 100%; max-width: 440px; margin-inline: auto; height: auto; aspect-ratio: 3 / 4; margin-block: 0; }
  .hero__media::after { background: linear-gradient(0deg, rgba(246,242,232,.5), rgba(246,242,232,0) 30%); }
  .hero__badge { left: auto; right: 0; border-radius: var(--radius-lg) 0 0 0; }
  .scroll-hint { display: none; }
  .trustbar__grid { grid-template-columns: repeat(3, 1fr); }
  .trustbar__item:last-child { grid-column: span 3; }
  .split { grid-template-columns: 1fr; gap: 40px; }
  .split--reverse .split__media { order: 0; }
  .split__media--frame::before { display: none; }
  .split__media--badge .badge-float { left: auto; right: 16px; }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); }
  .step:nth-child(3)::before { width: 0; }
  .step:nth-child(n+4) { padding-top: 8px; }
  .area, .team, .book { grid-template-columns: 1fr; gap: 42px; }
  .team { gap: 36px; }
  .founder { max-width: 400px; }
  .case-grid { grid-template-columns: 1fr; grid-template-rows: none; }
  .case--tall { grid-row: auto; min-height: 380px; }
  .case--tall .case__body { min-height: 380px; }
  .craft-media { grid-template-columns: 1fr 1fr; }
  .craft-item:last-child { grid-column: span 2; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 36px; }
  .footer__brand { grid-column: span 2; }
}
@media (max-width: 680px) {
  body { font-size: 15.5px; }
  .site-header { padding-block: 12px; }
  .site-header.is-stuck { padding-block: 9px; }
  .header-inner { gap: 10px; }
  .brand img { height: 30px; }
  .site-header.is-stuck .brand img { height: 26px; }
  .header-tel { padding: 8px 11px; font-size: 12.5px; gap: 6px; }
  .header-tel small { display: none; }
  .header-tel span { white-space: nowrap; }
  .header-tel svg { width: 14px; height: 14px; }
  .nav-toggle { width: 40px; height: 40px; flex: none; }
  .nav-toggle span { left: 11px; right: 11px; }
  .nav-toggle span:nth-child(1) { top: 13px; }
  .nav-toggle span:nth-child(2) { top: 19px; }
  .nav-toggle span:nth-child(3) { top: 25px; }
  .nav-toggle.is-open span:nth-child(1),
  .nav-toggle.is-open span:nth-child(3) { top: 19px; }
  .trustbar__grid { grid-template-columns: repeat(2, 1fr); }
  .trustbar__item:last-child { grid-column: span 2; }
  .grid--4, .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .step:nth-child(2n)::before { width: 0; }
  .step:nth-child(3)::before { width: 100%; }
  .style-grid { grid-template-columns: 1fr; }
  .style-card img { height: 300px; }
  .craft-media { grid-template-columns: 1fr; }
  .craft-item:last-child { grid-column: auto; }
  .craft-item img { height: 220px; }
  .family-grid { grid-template-columns: 1fr; }
  .stat-row { grid-template-columns: 1fr; }
  .cred-grid, .groups { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .footer__brand { grid-column: auto; }
  .price { grid-template-columns: 1fr; gap: 18px; }
  .price__diagram { max-width: 150px; }
  .char-item { grid-template-columns: 60px 1fr; gap: 16px; }
  .char-item__ch { font-size: 34px; }
  .hero__badge { padding: 18px 22px; max-width: 240px; }
  .hero__badge b { font-size: 28px; }
  .touch__name { min-width: auto; }
  .touch__line { display: none; }
}

/* 移动端导航面板 */
@media (max-width: 1120px) {
  .nav.is-open {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: fixed; inset: 0 0 0 auto; width: min(84vw, 360px); z-index: 120;
    background: var(--c-cream-2); padding: 104px 26px 40px; box-shadow: -20px 0 60px -20px rgba(22,38,63,.3);
    margin: 0; overflow-y: auto;
  }
  .nav.is-open a { padding: 16px 4px; font-size: 17px; border-bottom: 1px solid var(--c-line); }
  .nav.is-open a::after { display: none; }
  .nav-backdrop {
    position: fixed; inset: 0; z-index: 110; background: rgba(16,28,48,.42);
    opacity: 0; visibility: hidden; transition: all .35s var(--ease);
  }
  .nav-backdrop.is-show { opacity: 1; visibility: visible; }
  /* 注意：此处不能用 backdrop-filter —— 它会成为内部 position:fixed 元素的包含块，导致抽屉高度失效 */
  .site-header, .site-header.is-stuck { background: var(--c-cream-2); box-shadow: 0 1px 0 var(--c-line); }
  .site-header::before { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .001ms !important; transition-duration: .001ms !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* 打印 */
@media print {
  .site-header, .to-top, .scroll-hint, .nav-backdrop { display: none !important; }
  body { background: #fff; }
  .section { padding-block: 28px; }
}

/* =========================================================
   业务详情页（四大业务单页）
   ========================================================= */
.page-hero { background: var(--c-cream-2); padding: 168px 0 80px; position: relative; overflow: hidden; }
.page-hero__grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(34px, 5vw, 84px); align-items: center; }
.crumbs {
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
  font-size: 13px; color: var(--c-muted); letter-spacing: .05em; margin-bottom: 28px;
}
.crumbs a { color: var(--c-gold); }
.crumbs a:hover { text-decoration: underline; }
.crumbs .sep { opacity: .5; }
.page-hero h1 { font-size: clamp(34px, 4.6vw, 58px); line-height: 1.2; letter-spacing: .02em; }
.page-hero h1 .case-h1-sub { font-size: .68em; font-weight: 500; letter-spacing: .01em; }
.page-hero .lede { margin-top: 22px; font-size: clamp(15px, 1.3vw, 17.5px); color: var(--c-body); max-width: 58ch; line-height: 2; }
.page-hero .tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 28px; }
.page-hero .tags span { padding: 8px 17px; border: 1px solid var(--c-line-gold); border-radius: 100px; font-size: 13.5px; color: var(--c-gold); letter-spacing: .04em; }
.page-hero__media { position: relative; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-md); }
.page-hero__media img { width: 100%; height: clamp(280px, 34vw, 430px); object-fit: cover; }

.prose-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(34px, 4.5vw, 72px); align-items: start; }
.prose { font-size: 15.5px; color: var(--c-body); line-height: 2.05; }
.prose > h3 { font-size: 21px; margin: 0 0 16px; letter-spacing: .03em; }
.prose > h3:not(:first-child) { margin-top: 34px; }
.prose p { margin-bottom: 1.15em; }
.prose ul { display: grid; gap: 12px; margin: 0 0 1.25em; }
.prose ul li { padding-left: 22px; position: relative; }
.prose ul li::before { content: ""; position: absolute; left: 0; top: .78em; width: 10px; height: 1.5px; background: var(--c-gold); }
.prose strong { color: var(--c-ink); font-weight: 600; }

.spec-strip { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--c-line); }
.spec-strip .fact { background: var(--c-cream-2); padding: 30px 24px; }
.spec-strip .fact b { font-family: var(--f-serif); font-size: clamp(24px, 2.5vw, 34px); color: var(--c-ink); display: block; line-height: 1.1; }
.spec-strip .fact span { font-size: 13px; color: var(--c-muted); display: block; margin-top: 8px; letter-spacing: .03em; }

.biz-cta { background: var(--c-ink); color: rgba(255,255,255,.82); border-radius: var(--radius-lg); padding: clamp(34px, 4vw, 56px); display: flex; flex-wrap: wrap; gap: 24px; align-items: center; justify-content: space-between; }
.biz-cta h3 { color: #fff; font-size: clamp(21px, 2.4vw, 30px); margin-bottom: 10px; }
.biz-cta p { margin: 0; color: rgba(255,255,255,.66); }
.biz-cta .cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.biz-nav { display: flex; flex-wrap: wrap; gap: 14px; justify-content: space-between; align-items: center; padding-top: 34px; border-top: 1px solid var(--c-line); margin-top: 8px; }
.biz-nav a { display: inline-flex; align-items: center; gap: 8px; font-size: 14.5px; font-weight: 500; color: var(--c-ink); transition: color .3s var(--ease); }
.biz-nav a:hover { color: var(--c-gold); }
.biz-nav a svg { width: 15px; height: 15px; }

@media (max-width: 980px) {
  .page-hero__grid { grid-template-columns: 1fr; }
  .page-hero { padding: 132px 0 64px; }
  .prose-grid { grid-template-columns: 1fr; }
  .spec-strip { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 680px) {
  .spec-strip { grid-template-columns: 1fr; }
  .biz-cta { padding: 30px 26px; }
}

/* =========================================================
   服务特色 · 两列对齐网格（123 | 456 逐行对齐）
   ========================================================= */
.promise-grid { display: grid; grid-template-columns: 1fr 1fr; column-gap: clamp(40px, 5vw, 88px); }
.promise-grid .promise { border-top: 1px solid var(--c-line); border-bottom: 0; }
.promise-grid .promise:nth-last-child(-n+2) { border-bottom: 1px solid var(--c-line); }
@media (max-width: 680px) {
  .promise-grid { grid-template-columns: 1fr; column-gap: 0; }
  .promise-grid .promise:nth-last-child(-n+2) { border-bottom: 0; }
  .promise-grid .promise:last-child { border-bottom: 1px solid var(--c-line); }
}

/* =========================================================
   结构卡片（透明报价 · 三结构等高，可点击）
   ========================================================= */
.card__img--diagram { background: var(--c-cream-3); }
.card__img--diagram img { object-fit: contain; padding: 22px; }
.card--link .price__amount {
  font-family: var(--f-serif); color: var(--c-gold);
  font-size: clamp(24px, 2.3vw, 30px); font-weight: 600; line-height: 1;
  margin: 12px 0 14px; display: block;
}
.card--link .price__amount small { font-family: var(--f-sans); font-size: 13px; color: var(--c-muted); letter-spacing: .06em; margin-left: 4px; font-weight: 400; }

/* =========================================================
   企业微信二维码占位
   ========================================================= */
.qr-box {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px;
  width: 148px; height: 148px; margin: 26px auto 4px;
  border: 1.5px dashed var(--c-line-gold); border-radius: var(--radius);
  background: rgba(169,139,88,.05); color: var(--c-muted);
  text-align: center; padding: 16px;
}
.qr-box svg { width: 30px; height: 30px; color: var(--c-gold); opacity: .7; }
.qr-box span { font-size: 12.5px; letter-spacing: .04em; line-height: 1.6; }
.qr-box--real { border-style: solid; background: #fff; gap: 9px; padding: 10px 10px 8px; }
.qr-box--real img { width: 108px; height: 108px; display: block; image-rendering: pixelated; }
.qr-box--real span { color: var(--c-ink-3); font-weight: 500; }

/* 结构示意图：等比不裁剪，浅底居中 */
.page-hero__media--diagram img { object-fit: contain; background: var(--c-cream-3); padding: 30px; }

/* =========================================================
   四轮重构 · 新增组件
   ========================================================= */
/* 标题：品牌前缀（去数字） */
.eyebrow { letter-spacing: .14em; }

/* Hero 免费服务 */
.hero__free { margin-bottom: 18px; }
.hero__free-head {
  display: inline-flex; align-items: center; gap: 9px;
  font-size: 13px; font-weight: 600; letter-spacing: .22em; color: var(--c-gold);
  margin-bottom: 12px;
}
.hero__free-head::before { content: ""; width: 18px; height: 2px; background: var(--c-gold); }
.hero__free-list { display: flex; flex-wrap: wrap; gap: 10px; }
.hero__free-list a {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 10px 16px; border: 1px solid var(--c-line-gold); border-radius: 100px;
  background: rgba(255,255,255,.72); font-size: 14.5px; font-weight: 600;
  color: var(--c-ink); letter-spacing: .02em; white-space: nowrap;
  transition: all .3s var(--ease);
}
.hero__free-list a:hover { border-color: var(--c-gold); background: #fff; transform: translateY(-2px); box-shadow: var(--shadow-sm); }
.hero__free-list a svg { width: 16px; height: 16px; color: var(--c-gold); flex: none; }

/* 案例轮播 */
.carousel { position: relative; }
.carousel__viewport { overflow: hidden; border-radius: var(--radius); box-shadow: var(--shadow-md); }
.carousel__slides { display: flex; transition: transform .6s var(--ease); }
.carousel__slide { flex: 0 0 100%; position: relative; display: block; height: clamp(340px, 40vw, 500px); }
.carousel__slide img { width: 100%; height: 100%; object-fit: cover; }
.carousel__cap { position: absolute; left: 0; right: 0; bottom: 0; padding: 48px 40px 30px; background: linear-gradient(0deg, rgba(15,25,40,.92) 0%, rgba(15,25,40,.45) 55%, rgba(15,25,40,0) 100%); color: #fff; }
.carousel__cap span { font-size: 12px; letter-spacing: .22em; text-transform: uppercase; color: var(--c-gold-2); }
.carousel__cap h3 { color: #fff; font-size: clamp(24px, 2.6vw, 34px); margin: 8px 0 8px; }
.carousel__cap p { font-size: 14.5px; color: rgba(255,255,255,.82); margin: 0; }
.carousel__btn {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 3;
  width: 48px; height: 48px; border-radius: 50%; background: rgba(255,255,255,.85);
  color: var(--c-ink); display: grid; place-items: center; box-shadow: var(--shadow-sm);
  transition: all .3s var(--ease); font-size: 22px; line-height: 1;
}
.carousel__btn:hover { background: var(--c-gold); color: #fff; }
.carousel__btn--prev { left: 20px; }
.carousel__btn--next { right: 20px; }
.carousel__dots { position: absolute; left: 50%; transform: translateX(-50%); bottom: 20px; z-index: 3; display: flex; gap: 8px; }
.carousel__dot { width: 8px; height: 8px; border-radius: 50%; background: rgba(255,255,255,.5); transition: all .3s var(--ease); padding: 0; }
.carousel__dot.is-active { background: #fff; width: 22px; border-radius: 4px; }
@media (max-width: 680px) {
  .carousel__slide { height: 56vw; min-height: 300px; }
  .carousel__cap { padding: 40px 22px 22px; }
  .carousel__btn { width: 40px; height: 40px; }
  .carousel__btn--prev { left: 10px; }
  .carousel__btn--next { right: 10px; }
}

/* 公司动态 · 新闻卡片 */
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news-card { display: block; background: var(--c-cream-2); border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; transition: all .4s var(--ease); color: inherit; }
.news-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--c-line-gold); }
.news-card__img { height: 190px; overflow: hidden; }
.news-card__img img { width: 100%; height: 100%; object-fit: cover; transition: transform .8s var(--ease); }
.news-card:hover .news-card__img img { transform: scale(1.06); }
.news-card__body { padding: 22px 22px 24px; }
.news-card__body time { font-size: 12px; color: var(--c-gold); letter-spacing: .08em; }
.news-card__body h3 { font-size: 17px; margin: 10px 0 10px; line-height: 1.5; }
.news-card__body p { font-size: 14px; color: var(--c-muted); margin: 0; line-height: 1.8; }
@media (max-width: 980px) { .news-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 680px) { .news-grid { grid-template-columns: 1fr; } }

/* 视频占位 */
.video-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.video-card { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--c-cream-3); aspect-ratio: 3 / 4; display: grid; place-items: center; color: var(--c-muted); }
.video-card .play { width: 54px; height: 54px; border-radius: 50%; background: rgba(22,38,63,.85); color: #fff; display: grid; place-items: center; }
.video-card .play svg { width: 22px; height: 22px; }
.video-card figcaption { position: absolute; left: 0; right: 0; bottom: 0; padding: 14px; font-size: 13.5px; color: var(--c-ink); background: rgba(255,255,255,.75); text-align: center; }
@media (max-width: 980px) { .video-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 680px) { .video-grid { grid-template-columns: 1fr; } }

/* 视频分类入口卡 */
.video-cats { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.video-cat { position: relative; display: block; border-radius: var(--radius); overflow: hidden; aspect-ratio: 16/9; background: var(--c-cream-3); }
.video-cat img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s var(--ease); }
.video-cat:hover img { transform: scale(1.04); }
.video-cat .play { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); width: 58px; height: 58px; border-radius: 50%; background: rgba(22,38,63,.85); color: #fff; display: grid; place-items: center; transition: background .3s var(--ease); }
.video-cat:hover .play { background: var(--c-gold); }
.video-cat .play svg { width: 24px; height: 24px; }
.video-cat__bar { position: absolute; left: 0; right: 0; bottom: 0; display: flex; align-items: baseline; justify-content: space-between; gap: 12px; padding: 14px 18px; background: rgba(255,255,255,.8); backdrop-filter: blur(4px); }
.video-cat__bar h3 { font-size: 17px; }
.video-cat__bar p { font-size: 13px; color: var(--c-muted); white-space: nowrap; }
@media (max-width: 680px) { .video-cats { grid-template-columns: 1fr; } }

/* 常见问题 */
.faq-list { display: grid; gap: 14px; max-width: 860px; margin-inline: auto; }
.faq-item { background: var(--c-cream-2); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 26px 30px; transition: all .3s var(--ease); }
.faq-item:hover { border-color: var(--c-line-gold); }
.faq-item h3 { font-size: 17px; margin-bottom: 8px; display: flex; align-items: center; gap: 10px; }
.faq-item h3::before { content: "问"; flex: none; width: 22px; height: 22px; border-radius: 50%; background: var(--c-gold); color: #fff; font-size: 12px; display: grid; place-items: center; font-weight: 600; }
.faq-item p { font-size: 14.5px; color: var(--c-muted); margin: 0; line-height: 1.9; }

/* 首页公司动态 · 精简横条 */
.news-strip { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.news-strip .head-block { margin-bottom: 0; }

/* 内部页（无 banner）顶部留白，避开固定导航 */
.page-gap { height: 104px; }

/* =========================================================
   关于我们 · 参考排版新增
   ========================================================= */
.name-mean { margin-top: 26px; padding: 18px 22px; border-left: 3px solid var(--c-gold); background: rgba(255,255,255,.6); font-family: var(--f-serif); font-size: 15.5px; letter-spacing: .06em; color: var(--c-ink); }
.founder-letter { max-width: 880px; margin: 0 auto; }
.founder-letter article p { font-size: 15.5px; line-height: 2.1; color: var(--c-body); margin-bottom: 20px; text-align: left; }
.founder-letter article p:first-of-type::first-letter { font-family: var(--f-serif); font-size: 30px; color: var(--c-gold); font-weight: 700; }
.founder-letter .echo { font-family: var(--f-serif); font-size: 19px; color: var(--c-ink); text-align: left; margin: 40px 0 8px; letter-spacing: .05em; }
.founder-letter .sign { text-align: left; font-size: 13.5px; color: var(--c-muted); margin-bottom: 40px; }
.resume { background: var(--c-cream-2); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 30px 34px; }
.resume h3 { margin-bottom: 14px; padding-bottom: 12px; border-bottom: 1px solid var(--c-line); font-size: 19px; }
.resume li { position: relative; padding: 6px 0 6px 22px; font-size: 14.5px; color: var(--c-body); line-height: 1.8; }
.resume li::before { content: ""; position: absolute; left: 4px; top: 17px; width: 7px; height: 7px; border-radius: 50%; background: var(--c-gold); }
.resume .motto { margin-top: 16px; padding-top: 14px; border-top: 1px dashed var(--c-line); font-family: var(--f-serif); font-size: 16px; color: var(--c-ink); }
.svc-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 38px 0 48px; }
.svc { background: var(--c-cream-2); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 18px 14px; text-align: center; transition: .25s; }
.svc:hover { transform: translateY(-3px); border-color: var(--c-line-gold); }
.svc .no { font-family: var(--f-serif); font-size: 12px; color: var(--c-gold); letter-spacing: .18em; display: block; margin-bottom: 6px; }
.svc .t { font-size: 14.5px; color: var(--c-ink); letter-spacing: .05em; }
.price-table { width: 100%; border-collapse: collapse; background: var(--c-cream-2); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow-sm); }
.price-table th { background: var(--c-ink); color: #fff; font-family: var(--f-serif); font-size: 14.5px; padding: 13px 20px; text-align: left; letter-spacing: .05em; }
.price-table td { padding: 13px 20px; font-size: 14.5px; border-top: 1px solid var(--c-line); color: var(--c-body); }
.price-table td.price { font-family: var(--f-serif); color: var(--c-gold); font-weight: 600; white-space: nowrap; }
.close-deal { padding: 16px 20px; border: 1px dashed var(--c-line-gold); border-radius: var(--radius); background: rgba(255,255,255,.6); margin-bottom: 20px; }
.close-deal .t { font-family: var(--f-serif); font-size: 16px; color: var(--c-ink); }
.close-deal .d { font-size: 13px; color: var(--c-muted); margin-top: 4px; }
@media (max-width: 980px) { .svc-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 680px) { .svc-grid { grid-template-columns: 1fr; } }

/* 置顶角标 */
.news-card__pin { display: inline-block; font-size: 11px; letter-spacing: .08em; color: #fff; background: var(--c-gold); border-radius: 3px; padding: 2px 9px; margin-right: 8px; vertical-align: middle; }
.pin-badge { display: inline-block; font-size: 11px; letter-spacing: .08em; color: #fff; background: var(--c-gold); border-radius: 3px; padding: 2px 8px; margin-right: 8px; vertical-align: middle; }

/* 内部页 · 纯标题头部 */
.page-title { padding: 148px 0 10px; text-align: center; }
.page-title h1 { font-size: clamp(28px, 4vw, 48px); line-height: 1.5; letter-spacing: .04em; }

/* 两列案例（2 个案例时） */
.case-grid--2 { grid-template-columns: 1fr 1fr; grid-template-rows: none; }
.case-grid--2 .case { min-height: 420px; }

/* =========================================================
   案例卡（施工案例详情 · 结构化卡片）
   ========================================================= */
.case-card { background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); }
.case-card__head { padding: clamp(30px, 4vw, 52px) clamp(24px, 4vw, 52px) clamp(24px, 3vw, 36px); border-bottom: 1px solid var(--c-line); }
.case-card__tag { display: inline-block; font-size: 11.5px; letter-spacing: .22em; text-transform: uppercase; color: var(--c-gold); margin-bottom: 16px; }
.case-card__head h2 { font-size: clamp(26px, 3.2vw, 40px); letter-spacing: .02em; }
.case-card__sub { margin: 14px 0 0; font-size: 15px; color: var(--c-muted); letter-spacing: .04em; }
.case-card__facts { display: grid; grid-template-columns: repeat(4, 1fr); }
.case-card__facts .fact { padding: clamp(22px, 3vw, 34px) clamp(16px, 2vw, 28px); border-right: 1px solid var(--c-line); }
.case-card__facts .fact:last-child { border-right: 0; }
.case-card__facts .fact b { font-family: var(--f-serif); font-size: clamp(22px, 2.4vw, 30px); color: var(--c-ink); display: block; line-height: 1.15; }
.case-card__facts .fact span { font-size: 13px; color: var(--c-muted); display: block; margin-top: 8px; letter-spacing: .03em; }

/* 项目节奏 · 时间线 */
.case-timeline { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.case-timeline .tl { position: relative; background: var(--c-cream-2); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 22px 22px 20px; }
.case-timeline .tl::before { content: ""; position: absolute; left: 22px; top: -16px; width: 9px; height: 9px; border-radius: 50%; background: var(--c-gold); }
.case-timeline .tl b { font-family: var(--f-serif); font-size: 16.5px; color: var(--c-ink); display: block; }
.case-timeline .tl span { font-size: 13.5px; color: var(--c-muted); display: block; margin-top: 6px; line-height: 1.7; }

/* 功能亮点 */
.case-features { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; }
.case-features .feat { display: flex; gap: 14px; align-items: flex-start; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); padding: 20px 22px; }
.case-features .feat i { flex: none; width: 26px; height: 26px; border-radius: 50%; background: var(--c-ink); color: #fff; font-style: normal; font-size: 13px; display: grid; place-items: center; margin-top: 2px; }
.case-features .feat b { font-size: 15px; color: var(--c-ink); display: block; }
.case-features .feat span { font-size: 13.5px; color: var(--c-muted); display: block; margin-top: 4px; line-height: 1.7; }

/* 户型线稿图 */
.case-plan { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; align-items: stretch; }
.case-plan figure { margin: 0; display: flex; flex-direction: column; background: #fff; border: 1px solid var(--c-line); border-radius: var(--radius); overflow: hidden; }
.case-plan figure img { width: 100%; height: 340px; object-fit: contain; display: block; }
.case-plan figcaption { padding: 16px 20px; margin-top: auto; font-size: 14px; color: var(--c-ink); text-align: center; letter-spacing: .04em; border-top: 1px solid var(--c-line); background: var(--c-cream-2); }

@media (max-width: 900px) {
  .case-card__facts { grid-template-columns: repeat(2, 1fr); }
  .case-card__facts .fact:nth-child(2) { border-right: 0; }
  .case-card__facts .fact:nth-child(-n+2) { border-bottom: 1px solid var(--c-line); }
  .case-timeline { grid-template-columns: 1fr; }
  .case-features { grid-template-columns: 1fr; }
  .case-plan { grid-template-columns: 1fr; }
}

/* 施工档案 · 四个数据 icon */
.case-icons { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-top: 30px; }
.case-icons .cicon { display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; background: rgba(255,255,255,.72); border: 1px solid var(--c-line); border-radius: var(--radius); padding: 16px 14px; min-height: 76px; }
.case-icons .cicon span { font-size: 12.5px; color: var(--c-muted); display: block; letter-spacing: .03em; }
.case-icons .cicon b { font-size: 18px; color: var(--c-ink); display: block; line-height: 1.2; letter-spacing: .01em; margin-top: 7px; font-family: var(--f-serif); }
@media (max-width: 980px) { .case-icons { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .case-icons { grid-template-columns: 1fr 1fr; } }

/* 了解更多施工案例 · 底部入口横条 */
.more-cases { text-align: center; padding: 26px 0 70px; }
.more-cases a {
  display: inline-flex; align-items: center; justify-content: center; gap: 12px;
  background: #e6e6e6; color: var(--c-ink);
  padding: 16px 40px; border-radius: var(--radius);
  font-size: 16px; font-weight: 600; letter-spacing: .03em;
  transition: all .3s var(--ease);
}
.more-cases a:hover { background: var(--c-ink); color: #fff; }
.more-cases a svg { width: 18px; height: 18px; }

/* 底部导航中间「了解更多」按钮 */
.biz-nav__more { background: #e6e6e6; padding: 13px 30px; border-radius: var(--radius); font-weight: 600; letter-spacing: .03em; }
.biz-nav__more:hover { background: var(--c-ink); color: #fff; }

/* 轮播「了解更多施工案例」按钮 */
.carousel__more {
  margin-top: 14px;
  display: inline-flex; align-items: center; gap: 6px;
  padding: 9px 18px; border-radius: 100px;
  background: rgba(255,255,255,.94); color: var(--c-ink);
  font-size: 13px; font-weight: 600; letter-spacing: .03em;
  transition: all .3s var(--ease);
}
.carousel__slide:hover .carousel__more { background: var(--c-gold); color: #fff; }
.carousel__more svg { width: 14px; height: 14px; }

/* 文章详情页（源筑观察） */
.article-hero { padding: 148px 0 8px; text-align: center; }
.article-hero h1 { font-family: var(--f-serif); font-size: clamp(26px, 3.4vw, 40px); font-weight: 600; line-height: 1.55; letter-spacing: .03em; max-width: 920px; margin: 16px auto 0; color: var(--c-ink); }
.article-hero .article-meta { margin-top: 18px; font-size: 13.5px; color: var(--c-muted); letter-spacing: .06em; }
.article-hero .news-card__pin { margin-right: 10px; vertical-align: 1px; }
.article-body { max-width: 820px; margin: 40px auto 0; font-size: 16px; line-height: 2.05; color: var(--c-body); }
.article-body h2 { font-family: var(--f-serif); color: var(--c-ink); font-size: clamp(19px, 2vw, 23px); font-weight: 600; letter-spacing: .03em; margin: 42px 0 14px; }
.article-body p { margin: 0 0 16px; }
.article-body ol, .article-body ul { margin: 0 0 18px; padding-left: 1.5em; }
.article-body li { margin-bottom: 8px; }
.article-body strong { color: var(--c-ink); font-weight: 600; }
.article-body blockquote { margin: 0 0 20px; padding: 14px 20px; border-left: 3px solid var(--c-gold); background: var(--c-cream-2); color: var(--c-ink-3); font-size: 15px; border-radius: 0 var(--radius) var(--radius) 0; }
.article-body h3 { font-family: var(--f-serif); color: var(--c-ink); font-size: clamp(17px, 1.7vw, 20px); font-weight: 600; letter-spacing: .02em; margin: 32px 0 12px; }
.article-body em { font-style: italic; }
.article-body img { display: block; max-width: 100%; height: auto; margin: 22px auto; border-radius: var(--radius); }
.article-body figure { margin: 22px 0; text-align: center; }
.article-body figure img { margin: 0 auto 10px; }
.article-body figcaption { font-size: 13.5px; color: var(--c-muted); }
.article-nav { max-width: 820px; margin: 46px auto 0; padding-top: 22px; border-top: 1px solid var(--c-line); display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.article-nav a { font-size: 14.5px; color: var(--c-ink-2); text-decoration: none; }
.article-nav a:hover { color: var(--c-gold); }

/* ---------- 源筑观察列表（更多文章，无图纯文字） ---------- */
.article-list { list-style: none; margin: 0; padding: 0; max-width: var(--w-page, 1080px); }
.article-list__item { border-bottom: 1px solid var(--c-line); }
.article-list__item:last-child { border-bottom: none; }
.article-list__item a { display: block; padding: 24px 6px; text-decoration: none; color: inherit; transition: background-color .2s ease; }
.article-list__item a:hover { background-color: rgba(152, 126, 86, .06); }
.article-list__title { font-family: var(--f-serif); font-size: 1.22rem; line-height: 1.4; margin: 0 0 10px; color: var(--c-ink); font-weight: 600; }
.article-list__item a:hover .article-list__title { color: var(--c-gold); }
.article-list__summary { margin: 0 0 12px; color: var(--c-muted); line-height: 1.75; font-size: 15.5px; }
.article-list__date { display: block; font-size: 13.5px; color: var(--c-muted); letter-spacing: .03em; }


.video-card { text-decoration: none; color: inherit; display: block; overflow: hidden; }
.video-card > img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: 50% 22%; }
.video-card__pin { position: absolute; top: 10px; left: 10px; z-index: 3; font-size: 11px; letter-spacing: .08em; color: #fff; background: var(--c-gold); border-radius: 3px; padding: 3px 9px; box-shadow: 0 2px 8px rgba(0,0,0,.18); }
.video-card .play { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); z-index: 2; width: 54px; height: 54px; border-radius: 50%; background: rgba(22, 38, 63, .85); color: #fff; display: grid; place-items: center; transition: background .3s var(--ease); }
.video-card:hover .play { background: var(--c-gold); }
.video-card__bar { position: absolute; left: 0; right: 0; bottom: 0; z-index: 2; padding: 14px 16px; background: rgba(255, 255, 255, .82); }
.video-card__bar h3 { font-family: var(--f-serif); font-size: 16px; margin: 0; color: var(--c-ink); }
.video-card__bar p { font-size: 12.5px; color: var(--c-muted); margin: 4px 0 0; }
.video-player { max-width: 560px; margin: 34px auto 0; }
.vplayer { width: 100%; aspect-ratio: 3 / 4; background: #000; border-radius: var(--radius); display: block; object-fit: cover; }
.vplayer-embed { position: relative; width: 100%; aspect-ratio: 3 / 4; border-radius: var(--radius); overflow: hidden; background: #000; }
.vplayer-embed iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.vplayer-link { position: relative; width: 100%; aspect-ratio: 3 / 4; border-radius: var(--radius); overflow: hidden; }
.vplayer-link > img { width: 100%; height: 100%; object-fit: cover; }
.vplayer-link__mask { position: absolute; inset: 0; display: grid; place-items: center; background: rgba(22, 38, 63, .45); }
.empty-state { text-align: center; padding: 60px 20px; color: var(--c-muted); }
.empty-state p { font-size: 15px; }