/* kit.css —— 共用版式库的结构样式（doc/37 §6.3）。所有皮共用，皮的 skin.css 在它后面加载，只改变量与气质。
   **每个版式的手机排法写在它自己旁边**：电脑与手机都要好看、不错乱（doc/37 §14.1 第 13 条）。
   断点：1024（平板，吸顶讲解关掉、四列变两列）· 900（页头收成菜单按钮）· 640（手机，一列；小卡片两列）。
   「先藏后动」的样式一律挂在 .fx 下面：脚本没跑时什么都不藏（内容不靠脚本出现）。 */

:root {
  --surface: color-mix(in oklab, var(--paper) 92%, var(--ink));
  --surface-2: color-mix(in oklab, var(--paper) 96%, var(--ink));
  --on-brand: #ffffff;
  --radius: 14px;
  --radius-s: 8px;
  --sec-pad: clamp(56px, 6.5vw, 96px);
  --gap: clamp(18px, 2.2vw, 30px);
  --h1: clamp(34px, 5vw, 64px);
  --h2: clamp(26px, 2.8vw, 38px);
  --h3: clamp(18px, 1.45vw, 21px);
  --top-h: 68px;
  --font-num: var(--font-display);
  --card-bg: var(--paper);
  --card-bd: 1px solid var(--line);
  --shadow: 0 1px 2px color-mix(in oklab, var(--ink) 6%, transparent);
  --shadow-lift: 0 14px 34px -14px color-mix(in oklab, var(--ink) 30%, transparent);
  --wrap: 1180px;
}

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--top-h) + 12px); }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } *, *::before, *::after { transition: none !important; animation: none !important; } }

.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: var(--ink); color: var(--paper); padding: 10px 16px; border-radius: var(--radius-s); }
.skip:focus { left: 12px; }

/* ── 按钮与链接 ── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .4em;
  min-height: 44px; padding: 0 22px; border-radius: 999px;
  border: 1.5px solid var(--ink); color: var(--ink); background: transparent;
  font-size: 15px; font-weight: 600; letter-spacing: .02em; white-space: nowrap; cursor: pointer;
  transition: background .2s, color .2s, transform .2s, box-shadow .2s;
}
.btn:hover { color: var(--ink); background: color-mix(in oklab, var(--ink) 6%, transparent); }
.btn-solid { background: var(--brand); border-color: var(--brand); color: var(--on-brand); }
.btn-solid:hover { background: color-mix(in oklab, var(--brand) 86%, var(--ink)); color: var(--on-brand); transform: translateY(-1px); box-shadow: var(--shadow-lift); }
.btn-lg { min-height: 52px; padding: 0 30px; font-size: 16px; }
.more { display: inline-flex; align-items: center; min-height: 44px; font-weight: 600; color: var(--brand); }
.more::after { content: "→"; margin-left: .35em; transition: transform .2s; }
.more:hover { color: var(--brand); }
.more:hover::after { transform: translateX(3px); }
.eyebrow { margin: 0 0 6px; font-size: 13px; letter-spacing: .08em; color: var(--brand); font-weight: 600; }

/* ── 页头 ── */
.top { position: sticky; top: 0; z-index: 50; background: color-mix(in oklab, var(--paper) 88%, transparent);
  -webkit-backdrop-filter: saturate(1.4) blur(12px); backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid transparent; transition: border-color .2s, box-shadow .2s; }
.top.scrolled { border-bottom-color: var(--line); box-shadow: 0 6px 20px -16px color-mix(in oklab, var(--ink) 40%, transparent); }
.top-in { display: flex; align-items: center; gap: 24px; min-height: var(--top-h); }
.brand { display: flex; align-items: center; flex: 0 1 auto; min-width: 0; min-height: 44px; }
.brand { gap: 10px; }
.brand-logo { max-height: 36px; width: auto; }
.brand-logo.mark { height: 34px; width: 34px; object-fit: contain; border-radius: 8px; }
.brand-name { font-size: 20px; font-weight: 700; letter-spacing: .04em; min-width: 0; overflow-wrap: anywhere; }
/* 名字再长也不撑宽页头：手机上缩一号、最多两行 */
@media (max-width: 640px) {
  .brand-name { font-size: 17px; line-height: 1.25; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
  .fx .menu-btn { flex: none; }
}
.nav { flex: 1; display: flex; align-items: center; justify-content: flex-end; gap: 20px; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-link { display: inline-flex; align-items: center; min-height: 44px; padding: 0 12px; border-radius: var(--radius-s); font-size: 15px; cursor: pointer; }
.nav-link:hover, .nav-link[aria-current] { color: var(--brand); }
.nav-parent::after { content: ""; width: 6px; height: 6px; margin-left: 6px; border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor; transform: rotate(45deg) translateY(-2px); opacity: .6; }
.has-sub { position: relative; }
.sub { position: absolute; top: 100%; left: 50%; min-width: 220px; max-width: 360px; padding: 8px; margin-top: 4px;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-lift);
  transform: translateX(-50%) translateY(6px); opacity: 0; visibility: hidden; transition: opacity .18s, transform .18s, visibility .18s; }
.has-sub:hover > .sub, .has-sub:focus-within > .sub { opacity: 1; visibility: visible; transform: translateX(-50%); }
.sub a { display: block; padding: 10px 12px; border-radius: var(--radius-s); font-size: 15px; line-height: 1.4; }
.sub a:hover { background: var(--surface-2); }
.sub-group { padding: 10px 12px 4px; font-size: 12px; color: var(--ink-soft); letter-spacing: .08em; }
.menu-btn { display: none; }

@media (max-width: 900px) {
  .top-in { flex-wrap: wrap; gap: 0 12px; }
  /* 脚本没跑：菜单不收，整排挂在页头下面，下拉直接展开 */
  .no-fx .nav { flex-basis: 100%; flex-wrap: wrap; justify-content: flex-start; padding-bottom: 10px; }
  .no-fx .nav-list { flex-wrap: wrap; }
  .no-fx .sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; padding: 0 0 0 12px; display: flex; flex-wrap: wrap; }
  .no-fx .nav-parent::after { display: none; }
  /* 脚本在：按钮 + 抽屉。页头的毛玻璃要去掉：带 backdrop-filter 的元素会成为 fixed 子元素的定位框，
     抽屉的 inset 就算在 68px 高的页头里，打开只露出一行（真站手机上撞过） */
  .fx .top { -webkit-backdrop-filter: none; backdrop-filter: none; background: var(--paper); }
  .fx .menu-btn { display: inline-flex; align-items: center; gap: 8px; margin-left: auto; min-height: 44px; padding: 0 14px;
    border: 1px solid var(--line); border-radius: 999px; background: var(--paper); color: var(--ink); font: inherit; font-size: 15px; cursor: pointer; }
  .menu-icon, .menu-icon::before, .menu-icon::after { display: block; width: 16px; height: 1.5px; background: currentColor; transition: transform .2s, opacity .2s; }
  .menu-icon { position: relative; }
  .menu-icon::before, .menu-icon::after { content: ""; position: absolute; left: 0; }
  .menu-icon::before { top: -5px; } .menu-icon::after { top: 5px; }
  .menu-open .menu-icon { background: transparent; }
  .menu-open .menu-icon::before { transform: translateY(5px) rotate(45deg); }
  .menu-open .menu-icon::after { transform: translateY(-5px) rotate(-45deg); }
  .fx .nav { position: fixed; inset: var(--top-h) 0 0 0; z-index: 49; display: block; overflow-y: auto; overscroll-behavior: contain;
    padding: 12px var(--gutter) 40px; background: var(--paper); border-top: 1px solid var(--line);
    opacity: 0; visibility: hidden; transform: translateY(-8px); transition: opacity .2s, transform .2s, visibility .2s; }
  .fx.menu-open .nav { opacity: 1; visibility: visible; transform: none; }
  .fx.menu-open body { overflow: hidden; }
  .fx .nav-list { display: block; }
  .fx .nav-item { border-bottom: 1px solid var(--line); }
  .fx .nav-link { display: flex; min-height: 54px; padding: 0 4px; font-size: 17px; }
  .fx .nav-parent { color: var(--ink-soft); font-size: 14px; min-height: 44px; }
  .fx .nav-parent::after { display: none; }
  .fx .sub { position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none; border: 0; margin: 0 0 8px; padding: 0; min-width: 0; max-width: none; }
  .fx .sub a { padding: 12px 4px; font-size: 17px; }
  .fx .nav-action { display: flex; width: 100%; margin-top: 20px; min-height: 52px; }
}

/* ── 节与节头 ── */
.sec { padding-block: var(--sec-pad); }
.sec.alt { background: var(--surface-2); }
.sec-head { max-width: 46em; margin-bottom: clamp(28px, 4vw, 52px); }
.sec-head.center { margin-inline: auto; text-align: center; }
.sec-title { font-size: var(--h2); line-height: 1.25; }
.sec-intro { margin: 14px 0 0; color: var(--ink-soft); font-size: clamp(16px, 1.25vw, 18px); }
.split-head { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(24px, 5vw, 80px); align-items: start; }
.split-head > .sec-head { margin-bottom: 0; position: sticky; top: calc(var(--top-h) + 24px); }
.narrow { max-width: 860px; }
.page-head { padding-block: clamp(48px, 7vw, 96px) clamp(16px, 3vw, 32px); }
.page-title { font-size: var(--h1); line-height: 1.2; max-width: 18em; }
.page-sub { margin: 18px 0 0; max-width: 36em; font-size: clamp(17px, 1.4vw, 20px); color: var(--ink-soft); }
.crumbs { margin-bottom: 20px; }
@media (max-width: 900px) {
  .split-head { grid-template-columns: minmax(0, 1fr); }
  .split-head > .sec-head { position: static; margin-bottom: 8px; }
}

/* ── 格子：一行几列由条目数算（page.grid_class） ── */
.grid { display: grid; gap: var(--gap); }
.c-1 { grid-template-columns: minmax(0, 1fr); max-width: 760px; }
.c-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.c-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.c-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 1024px) { .c-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 760px) { .c-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .c-3 > :last-child:nth-child(odd) { grid-column: 1 / -1; } }
@media (max-width: 640px) {
  .c-2, .c-3, .c-4 { grid-template-columns: minmax(0, 1fr); }
  .c-3 > :last-child:nth-child(odd) { grid-column: auto; }
  .keep2.c-3, .keep2.c-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ── 卡片 ── */
.card { position: relative; display: flex; flex-direction: column; gap: 10px; min-width: 0;
  padding: clamp(20px, 2.2vw, 28px); background: var(--card-bg); border: var(--card-bd); border-radius: var(--radius); box-shadow: var(--shadow); }
.card-title { font-size: var(--h3); line-height: 1.4; }
.card-body { margin: 0; color: var(--ink-soft); }
.card-media { margin: calc(-1 * clamp(20px, 2.2vw, 28px)) calc(-1 * clamp(20px, 2.2vw, 28px)) 8px; overflow: hidden; border-radius: var(--radius) var(--radius) 0 0; }
.card-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.card-media.shot img { aspect-ratio: auto; object-fit: contain; background: var(--surface-2); }
.card .more { margin-top: auto; }
.linked { transition: transform .2s, box-shadow .2s, border-color .2s; }
.linked:hover { transform: translateY(-3px); box-shadow: var(--shadow-lift); border-color: color-mix(in oklab, var(--brand) 40%, var(--line)); }
.stretched::after { content: ""; position: absolute; inset: 0; border-radius: inherit; }
.ticks li { position: relative; padding-left: 1.5em; margin: 6px 0; }
.ticks li::before { content: ""; position: absolute; left: 2px; top: .62em; width: .7em; height: .38em; border-left: 2px solid var(--brand); border-bottom: 2px solid var(--brand); transform: rotate(-45deg); }

/* 编号：条目自己的序号由样式数，不写在文案里 */
.numbered { counter-reset: n; }
.numbered > li { counter-increment: n; }
.numbered > li::before { content: counter(n, decimal-leading-zero); font-family: var(--font-num); font-size: 15px; font-weight: 700; color: var(--brand); letter-spacing: .06em; }
.big-num > li::before { font-size: clamp(30px, 3vw, 44px); line-height: 1; }

/* 行：标题一栏、说明一栏，手机上上下排 */
.rows > .row { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 8px 28px; padding: 20px 0; border-top: 1px solid var(--line); }
.rows > .row:last-child { border-bottom: 1px solid var(--line); }
.rows.numbered > .row { grid-template-columns: 3em minmax(0, 5fr) minmax(0, 7fr); }
.row-title { font-size: var(--h3); }
.row-body { margin: 0; color: var(--ink-soft); }
.rows.compact { margin-top: 28px; }
@media (max-width: 640px) {
  .rows > .row, .rows.numbered > .row { grid-template-columns: minmax(0, 1fr); gap: 4px; }
}

/* ── 首屏（它自己管上下留白，外面那一节不再加一遍） ── */
.sec.s-hero { padding-block: 0; }
.hero { padding-block: clamp(48px, 7vw, 104px); }
.hero-title { font-size: var(--h1); line-height: 1.16; letter-spacing: .01em; }
.hero-sub { margin: 22px 0 0; max-width: 34em; font-size: clamp(17px, 1.5vw, 21px); line-height: 1.75; color: var(--ink-soft); }
.hero-act { margin: 32px 0 0; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-split { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 6fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero-media { margin: 0; }
/* 首屏图按原比例放（界面截图不能裁），只限一个最大高度 */
.hero-media img { width: 100%; max-height: 72vh; object-fit: cover; border-radius: var(--radius); box-shadow: var(--shadow-lift); }
.hero-statement { text-align: left; }
.hero-statement .hero-title { max-width: 14em; font-size: clamp(38px, 6.4vw, 84px); }
.hero-cover { position: relative; isolation: isolate; min-height: clamp(460px, 72vh, 760px); display: flex; align-items: flex-end; color: #fff; padding-block: 0; }
.hero-bg { position: absolute; inset: 0; z-index: -1; overflow: hidden; }
.hero-bg img { width: 100%; height: 115%; object-fit: cover; }
.hero-bg::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(0,0,0,.25), rgba(0,0,0,.65)); }
.hero-cover .hero-text { width: 100%; padding-block: clamp(48px, 8vw, 104px); }
.hero-cover .hero-sub { color: rgba(255,255,255,.88); }
.hero-cover .hero-title { color: #fff; text-shadow: 0 2px 18px rgba(0,0,0,.25); max-width: 15em; }
@media (max-width: 900px) {
  .hero-split { grid-template-columns: minmax(0, 1fr); }
}
@media (max-width: 640px) {
  .hero { padding-block: 44px 52px; }
  .hero-act .btn { flex: 1 1 auto; }
  .hero-cover { min-height: 70vh; }
}

/* ── 图文交替 ── */
.zigzag { display: grid; gap: clamp(40px, 6vw, 88px); }
.zz { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.zz:nth-child(even) .zz-media { order: 2; }
.zz.no-img { grid-template-columns: minmax(0, 1fr); max-width: 760px; }
.zz-media { margin: 0; }
/* 单张大图按原比例放（截图、竖图都不裁坏），只限最大高度；整排卡片里的图才统一裁切 */
.zz-media img { width: 100%; max-height: 560px; object-fit: cover; border-radius: var(--radius); }
.zz-title { font-size: clamp(22px, 2.2vw, 30px); margin-bottom: 12px; }
.zz-body { color: var(--ink-soft); font-size: 17px; }
@media (max-width: 900px) {
  .zz { grid-template-columns: minmax(0, 1fr); }
  .zz:nth-child(even) .zz-media { order: 0; }
}

/* 界面截图：整张显示、不裁，带一圈边与影子 */
.shot img { aspect-ratio: auto !important; object-fit: contain; background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-lift); }

/* ── 选项卡 ── */
.tabs { display: grid; gap: 28px; }
.tab-list { display: flex; justify-content: center; gap: 8px; flex-wrap: wrap; }
.tab-btn { min-height: 44px; padding: 0 20px; border-radius: 999px; border: 1px solid var(--line); background: var(--paper); color: var(--ink-soft);
  font: inherit; font-size: 15px; font-weight: 600; cursor: pointer; white-space: nowrap; transition: background .2s, color .2s, border-color .2s; }
.tab-btn:hover { color: var(--ink); }
.tab-btn[aria-selected="true"] { background: var(--ink); border-color: var(--ink); color: var(--paper); }
.tab-panel { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: clamp(24px, 4vw, 56px); align-items: center; }
.tab-title { font-size: clamp(22px, 2.2vw, 28px); margin-bottom: 12px; }
.tab-text p { color: var(--ink-soft); }
.tab-media { margin: 0; }
.tabs.ready > .tab-panel:not(.on) { display: none; }
.no-fx .tab-panel + .tab-panel { padding-top: 40px; border-top: 1px solid var(--line); }
@media (max-width: 900px) {
  .tab-list { flex-wrap: nowrap; justify-content: flex-start; overflow-x: auto; scrollbar-width: none; margin-inline: calc(-1 * var(--gutter)); padding-inline: var(--gutter); scroll-snap-type: x proximity; }
  .tab-list::-webkit-scrollbar { display: none; }
  .tab-btn { scroll-snap-align: start; }
  .tab-panel { grid-template-columns: minmax(0, 1fr); }
}

/* ── 吸顶讲解：只在电脑上开（1025px 以上、脚本在） ── */
.story-stage { display: none; }
.story-steps { display: grid; gap: 48px; }
.story-step h3 { font-size: clamp(22px, 2.2vw, 30px); margin-bottom: 12px; }
.story-step p { color: var(--ink-soft); }
.story-inline { margin: 20px 0 0; }
@media (min-width: 1025px) {
  .fx .story { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 64px; align-items: start; }
  .fx .story-steps { gap: 0; }
  .fx .story-step { min-height: 72vh; display: flex; flex-direction: column; justify-content: center; opacity: .35; transition: opacity .35s; }
  .fx .story-step.on { opacity: 1; }
  .fx .story-inline { display: none; }
  .fx .story-stage { display: block; position: sticky; top: calc(var(--top-h) + 6vh); height: 70vh; }
  .fx .story-shot { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; opacity: 0; transform: scale(.98); transition: opacity .45s, transform .45s; }
  .fx .story-shot.on { opacity: 1; transform: none; }
  .fx .story-stage.shot img { border: 0; box-shadow: none; background: transparent; }
}

/* ── 几步走 ── */
.flow { counter-reset: step; display: grid; grid-auto-flow: column; grid-auto-columns: minmax(0, 1fr); gap: 24px; position: relative; }
.flow::before { content: ""; position: absolute; top: 22px; left: 22px; right: 22px; height: 2px; background: var(--line); }
.flow-step { position: relative; counter-increment: step; padding-top: 64px; }
.flow-step::before { content: counter(step); position: absolute; top: 0; left: 0; width: 46px; height: 46px; display: grid; place-items: center;
  border-radius: 50%; background: var(--brand); color: var(--on-brand); font-family: var(--font-num); font-size: 18px; font-weight: 700; box-shadow: 0 0 0 6px var(--paper); }
.sec.alt .flow-step::before { box-shadow: 0 0 0 6px var(--surface-2); }
.flow-title { font-size: var(--h3); margin-bottom: 8px; }
.flow-body { color: var(--ink-soft); margin: 0; }
@media (max-width: 900px) {
  .flow { grid-auto-flow: row; gap: 28px; }
  .flow::before { top: 22px; bottom: 22px; left: 22px; right: auto; width: 2px; height: auto; }
  .flow-step { padding: 6px 0 0 70px; min-height: 46px; }
}

/* ── 数字条 ── */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); gap: var(--gap); }
.stat { padding: 8px 0 0; border-top: 2px solid var(--ink); }
.stat-fig { margin: 12px 0 6px; display: flex; align-items: baseline; gap: 2px; font-family: var(--font-num); line-height: 1; }
.stat-fig .num { font-size: clamp(40px, 4.6vw, 64px); font-weight: 700; letter-spacing: -.01em; }
.stat-fig .unit { font-size: clamp(16px, 1.4vw, 20px); font-weight: 600; margin-left: 4px; }
.stat-label { margin: 0; font-weight: 600; }
.stat-note { margin: 4px 0 0; font-size: 14px; color: var(--ink-soft); }
/* 手机：数字条按个数排，不剩一个孤零零的——三个就一行三个（字缩一号），其余两列 */
@media (max-width: 640px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px 16px; }
  .stats.n-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px 12px; }
  .stats.n-3 .stat-fig .num { font-size: 34px; }
  .stats.n-3 .stat-label { font-size: 14px; }
  .stats.n-1 { grid-template-columns: minmax(0, 1fr); }
  .stats.n-5 > :last-child, .stats.n-7 > :last-child { grid-column: 1 / -1; }
}

/* ── 轮播：脚本没跑时就是一排能横划的卡片 ── */
.carousel { position: relative; }
.no-fx .carousel .swiper-wrapper { display: flex; gap: var(--gap); overflow-x: auto; scroll-snap-type: x mandatory; padding-bottom: 12px; }
.no-fx .carousel .swiper-slide { flex: 0 0 min(86%, 360px); scroll-snap-align: start; }
.carousel .swiper { overflow: hidden; padding: 4px 2px 8px; margin: -4px -2px -8px; }
.carousel .swiper-slide { height: auto; }
.carousel-ctl { display: none; }
.carousel.ready .carousel-ctl { display: flex; align-items: center; justify-content: center; gap: 16px; margin-top: 28px; }
.carousel-prev, .carousel-next { width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: var(--paper); color: var(--ink); cursor: pointer; display: grid; place-items: center; }
.carousel-prev::before, .carousel-next::before { content: ""; width: 9px; height: 9px; border-left: 2px solid currentColor; border-bottom: 2px solid currentColor; transform: translateX(2px) rotate(45deg); }
.carousel-next::before { transform: translateX(-2px) rotate(-135deg); }
.carousel-prev:hover, .carousel-next:hover { border-color: var(--ink); }
.carousel-prev.swiper-button-disabled, .carousel-next.swiper-button-disabled { opacity: .35; cursor: default; }
.carousel-dots { display: flex; gap: 8px; width: auto !important; }
.carousel-dots .swiper-pagination-bullet { width: 8px; height: 8px; margin: 0 !important; background: var(--ink); opacity: .2; }
.carousel-dots .swiper-pagination-bullet-active { opacity: 1; width: 22px; border-radius: 4px; }

/* 案例卡 */
.case-card { justify-content: flex-start; }
.case-who { margin: 0; font-size: 14px; font-weight: 600; color: var(--ink-soft); }
.case-who span { display: block; font-weight: 400; font-size: 13px; }
.case-result { font-size: clamp(18px, 1.6vw, 22px); line-height: 1.45; }

/* 客户评价 */
.quote { margin: 0; display: flex; flex-direction: column; gap: 16px; height: 100%; }
.quote blockquote { margin: 0; font-size: clamp(17px, 1.5vw, 20px); line-height: 1.75; }
.quote blockquote::before { content: "“"; display: block; font-family: var(--font-display); font-size: 56px; line-height: .6; color: var(--brand); margin-bottom: 8px; }
.quote figcaption { margin-top: auto; font-size: 14px; color: var(--ink-soft); }
.carousel .quote { padding: clamp(24px, 3vw, 36px); background: var(--card-bg); border: var(--card-bd); border-radius: var(--radius); }
.quote.big blockquote { font-family: var(--font-display); font-size: clamp(24px, 3vw, 38px); line-height: 1.55; }
.quote.big { text-align: center; align-items: center; }

/* 案例详情：右栏吸顶 → 手机上移到最前 */
.case { display: grid; grid-template-columns: minmax(0, 8fr) minmax(0, 4fr); gap: clamp(28px, 5vw, 72px); align-items: start; }
.case-side { order: 2; position: sticky; top: calc(var(--top-h) + 24px); padding: 24px; border-radius: var(--radius); background: var(--surface-2); }
.case-side .case-who { font-size: 18px; color: var(--ink); margin-bottom: 16px; }
.case-metrics { margin: 0; display: grid; gap: 16px; }
.case-metrics dt { font-size: 14px; color: var(--ink-soft); }
.case-metrics dd { margin: 2px 0 0; font-family: var(--font-num); font-size: clamp(22px, 2.2vw, 30px); font-weight: 700; line-height: 1.25; }
.case-title { font-size: var(--h2); margin-bottom: 24px; }
.case-media { margin: 0 0 32px; }
.case-media img { width: 100%; border-radius: var(--radius); }
.case-part { margin-top: 28px; }
.case-part h3 { font-size: 15px; letter-spacing: .08em; color: var(--brand); margin-bottom: 10px; }
.case-part p { font-size: 17px; }
@media (max-width: 900px) {
  .case { grid-template-columns: minmax(0, 1fr); }
  .case-side { order: 0; position: static; }
  .case-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* 资质、团队、联系：小卡片 */
.badge { display: flex; flex-direction: column; gap: 6px; padding: 18px; border: 1px solid var(--line); border-radius: var(--radius-s); background: var(--card-bg); }
.badge img { max-height: 72px; width: auto; object-fit: contain; }
.badge b { font-size: 16px; }
.badge span { font-size: 14px; color: var(--ink-soft); }
.person { display: flex; flex-direction: column; gap: 4px; }
.person-photo { width: 100%; aspect-ratio: 4 / 5; object-fit: cover; border-radius: var(--radius); margin-bottom: 12px; }
.person-mono { width: 64px; height: 64px; display: grid; place-items: center; border-radius: 50%; background: color-mix(in oklab, var(--brand) 14%, var(--paper)); color: var(--brand); font-size: 26px; font-weight: 700; margin-bottom: 12px; }
.person-name { font-size: var(--h3); }
.person-role { margin: 0; font-size: 14px; color: var(--brand); }
.person-bio { margin: 4px 0 0; font-size: 15px; color: var(--ink-soft); }
.contact > div dt { font-size: 13px; color: var(--ink-soft); letter-spacing: .06em; }
.contact > div dd { margin: 4px 0 0; font-size: 17px; font-weight: 600; overflow-wrap: anywhere; }

/* 关于我们 */
.about.has-img { display: grid; grid-template-columns: minmax(0, 7fr) minmax(0, 5fr); gap: clamp(28px, 5vw, 72px); align-items: center; }
.about-text { max-width: 40em; }
.about-text .sec-title { margin-bottom: 24px; }
.about-text p { font-size: 17px; }
.about-text .lead { font-size: clamp(19px, 1.6vw, 22px); line-height: 1.7; }
.about-media { margin: 0; }
.about-media img { width: 100%; max-height: 640px; object-fit: cover; border-radius: var(--radius); }
@media (max-width: 900px) { .about.has-img { grid-template-columns: minmax(0, 1fr); } }

/* 发展历程 */
.annals li { display: grid; grid-template-columns: 8em minmax(0, 1fr); gap: 20px; padding: 18px 0; border-top: 1px solid var(--line); }
.annals li:last-child { border-bottom: 1px solid var(--line); }
.annals-when { margin: 0; font-family: var(--font-num); font-weight: 700; color: var(--brand); }
.annals h3 { font-size: 17px; }
.annals p { margin: 4px 0 0; color: var(--ink-soft); font-size: 15px; }
@media (max-width: 640px) { .annals li { grid-template-columns: minmax(0, 1fr); gap: 2px; } }

/* 价格 */
.plan { align-items: flex-start; }
.plan-name { font-size: 18px; }
.plan-price { margin: 4px 0; font-family: var(--font-num); font-size: clamp(26px, 2.6vw, 34px); font-weight: 700; line-height: 1.2; }
.plan-note { margin: 0; color: var(--ink-soft); font-size: 15px; }
.plan.featured { border: 2px solid var(--brand); box-shadow: var(--shadow-lift); }
@media (min-width: 761px) { .plan.featured { transform: translateY(-8px); } }

/* 常见问题：原生展开收起 */
.qa details { border-top: 1px solid var(--line); }
.qa details:last-of-type { border-bottom: 1px solid var(--line); }
.qa summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; min-height: 60px; padding: 14px 0;
  cursor: pointer; list-style: none; font-size: 17px; font-weight: 600; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "+"; flex: none; width: 28px; height: 28px; display: grid; place-items: center; border-radius: 50%; border: 1px solid var(--line); font-weight: 400; transition: transform .2s; }
.qa details[open] summary::after { transform: rotate(45deg); }
.qa details p { margin: 0 0 18px; color: var(--ink-soft); max-width: 48em; }
.qa .more { margin-top: 16px; }

/* 规格参数 */
.specs { margin: 0; }
.specs > div { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 8fr); gap: 20px; padding: 14px 0; border-top: 1px solid var(--line); }
.specs > div:last-child { border-bottom: 1px solid var(--line); }
.specs dt { color: var(--ink-soft); }
.specs dd { margin: 0; overflow-wrap: anywhere; }
@media (max-width: 640px) { .specs > div { grid-template-columns: minmax(0, 1fr); gap: 2px; } }

/* 行动号召 */
.cta { text-align: center; padding-block: clamp(48px, 6vw, 80px); border-radius: calc(var(--radius) * 1.6); background: var(--brand); color: var(--on-brand); }
.cta-title { max-width: 20em; margin: 0 auto; font-size: var(--h2); color: var(--on-brand); }
.cta-body { margin: 14px auto 0; max-width: 36em; opacity: .88; }
.cta-act { margin: 28px 0 0; }
.cta .btn-solid { background: var(--on-brand); border-color: var(--on-brand); color: var(--brand); }
.cta .btn-solid:hover { background: color-mix(in oklab, var(--on-brand) 90%, var(--brand)); color: var(--brand); }
@media (max-width: 640px) { .cta { border-radius: var(--radius); padding-inline: 20px; } }

/* ── 页脚 ── */
.foot { padding-top: clamp(48px, 6vw, 72px); background: var(--surface-2); border-top: 1px solid var(--line); }
.foot-in { display: grid; grid-template-columns: minmax(0, 4fr) minmax(0, 5fr) minmax(0, 3fr); gap: 32px; }
.foot-name { margin: 0; font-size: 20px; font-weight: 700; }
.foot-tag { margin: 8px 0 0; color: var(--ink-soft); }
.foot-nav { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 4px 24px; align-content: start; }
.foot-nav a { display: inline-flex; align-items: center; min-height: 40px; color: var(--ink-soft); font-size: 15px; }
.foot-nav a:hover { color: var(--brand); }
.foot-contact { margin: 0; display: grid; gap: 10px; align-content: start; }
.foot-contact dt { font-size: 13px; color: var(--ink-soft); }
.foot-contact dd { margin: 0; font-size: 15px; overflow-wrap: anywhere; }
.foot-base { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 24px; margin-top: 40px; padding-block: 20px 28px; border-top: 1px solid var(--line); font-size: 13px; color: var(--ink-soft); }
.foot-base p { margin: 0; }
@media (max-width: 900px) { .foot-in { grid-template-columns: minmax(0, 1fr); gap: 28px; } }

/* ── 文章页 ── */
.post-cover { width: 100%; border-radius: var(--radius); margin-bottom: 36px; }
.post .prose { max-width: none; font-size: 17px; }
.post .prose .lead { font-size: clamp(18px, 1.5vw, 20px); }
.post .prose .muted { color: var(--ink-soft); font-size: 15px; }
.related { margin-top: 48px; padding-top: 24px; border-top: 1px solid var(--line); }
.related ul { display: flex; flex-wrap: wrap; gap: 4px 24px; }