/* RiseUp 官网样式（浅色版）
   布局思路：浅蓝白底、大幅视觉图、圆角白卡片，区块用中英双标题。
   蓝色是主色，品牌橙只用在主按钮和强调数字上。每个图片位在图片缺失时
   显示占位说明，图片放进 assets/img 后自动盖住占位。 */

:root {
  --bg: #F4F7FD;
  --surface: #FFFFFF;
  --ink: #0F2447;
  --body: #4D5D78;
  --muted: #8491A8;
  --line: #E1E8F4;
  --blue: #2563EB;
  --blue-deep: #1746B8;
  --blue-soft: #E9F0FF;
  --navy: #0B1E42;
  --orange-a: #FB9B1F;
  --orange-b: #FC6E19;
  --orange-c: #E3180F;
  --grad: linear-gradient(100deg, var(--orange-a), var(--orange-b) 50%, var(--orange-c));
  --pen: #E5391B;
  --green: #12805A;
  --green-soft: #E2F5EC;
  --amber: #9A6200;
  --amber-soft: #FFF2D6;
  --shadow: 0 10px 30px rgba(20, 50, 110, .08);
  --shadow-lg: 0 24px 60px rgba(20, 50, 110, .14);

  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-num: "DIN Alternate", "Helvetica Neue", Arial, "PingFang SC", sans-serif;
  --font-mono: "SF Mono", Menlo, Consolas, "Courier New", monospace;

  --wrap: 1240px;
  --radius: 18px;
  --header-h: 62px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); font-size: 16px; line-height: 1.75; color: var(--body); background: var(--bg); -webkit-font-smoothing: antialiased; }
h1, h2, h3, h4, p, ul, ol, figure, blockquote, dl, dd { margin: 0; }
ul, ol { padding: 0; list-style: none; }
img, svg, video { max-width: 100%; display: block; }
[hidden] { display: none !important; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { color: var(--ink); line-height: 1.3; font-weight: 700; text-wrap: balance; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; border-radius: 6px; }
.num { font-family: var(--font-num); font-variant-numeric: tabular-nums; }

.wrap { max-width: var(--wrap); margin-inline: auto; padding-left: max(16px, env(safe-area-inset-left, 0px)); padding-right: max(16px, env(safe-area-inset-right, 0px)); }
.skip { position: absolute; left: -999px; top: 0; background: #fff; padding: 8px 12px; z-index: 100; }
.skip:focus { left: 8px; top: 8px; }

/* ---------- 按钮 ---------- */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 26px; font: inherit; font-weight: 600; font-size: 16px; line-height: 1.2; border-radius: 99px; border: 1px solid transparent; cursor: pointer; text-decoration: none; transition: transform .15s, box-shadow .2s, background-color .15s, color .15s; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--grad); color: #fff; box-shadow: 0 8px 22px rgba(252, 110, 25, .32); }
.btn-blue { background: var(--blue); color: #fff; box-shadow: 0 8px 22px rgba(37, 99, 235, .28); }
.btn-ghost { background: #fff; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); }
.btn-sm { min-height: 40px; padding: 0 20px; font-size: 14px; }
.btn[disabled] { opacity: .6; cursor: default; transform: none; }

/* ---------- 顶部导航 ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.9); -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
.site-header .wrap { display: flex; align-items: center; gap: 12px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 8px; color: var(--ink); font-weight: 800; font-size: 21px; }
.brand:hover { text-decoration: none; }
.brand img { width: 32px; height: 32px; }
.nav { margin-left: auto; }
.nav ul { display: none; }
.nav a { color: var(--ink); font-size: 15px; }
.header-cta { margin-left: auto; }
.nav-toggle { width: 42px; height: 42px; padding: 0; border: 0; background: none; cursor: pointer; display: grid; place-content: center; gap: 5px; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .2s, opacity .2s; }
.nav-open .nav-toggle span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
.nav-open .nav-toggle span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.nav-open .nav ul { display: flex; flex-direction: column; position: fixed; inset: var(--header-h) 0 0 0; background: #fff; padding: 8px 20px 40px; overflow-y: auto; }
.nav-open .nav li { border-bottom: 1px solid var(--line); }
.nav-open .nav a { display: block; padding: 18px 0; font-size: 18px; }
@media (min-width: 960px) {
  :root { --header-h: 72px; }
  .nav-toggle { display: none; }
  .nav { margin-left: 56px; }
  .nav ul { display: flex; gap: 6px; }
  .nav a { display: block; padding: 8px 16px; border-radius: 99px; transition: background-color .15s, color .15s; }
  .nav a:hover { background: var(--blue-soft); color: var(--blue); text-decoration: none; }
}

/* ---------- 图片位 / 视频位 ---------- */
.shot { position: relative; overflow: hidden; border-radius: var(--radius); background: linear-gradient(135deg, #DCE8FF 0%, #EEF3FF 45%, #FFE9DA 100%); aspect-ratio: 16 / 9; display: grid; place-content: center; text-align: center; }
.shot::before { content: attr(data-label); font-size: 13px; color: #6B7EA6; padding: 0 16px; line-height: 1.5; }
.shot img, .shot video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.shot-43 { aspect-ratio: 4 / 3; }
.play { position: absolute; left: 50%; top: 50%; width: 68px; height: 68px; margin: -34px 0 0 -34px; border-radius: 50%; background: rgba(255,255,255,.92); box-shadow: var(--shadow); display: grid; place-content: center; z-index: 2; }
.play::before { content: ""; border-left: 18px solid var(--blue); border-top: 11px solid transparent; border-bottom: 11px solid transparent; margin-left: 5px; }
.shot-video::before { margin-top: 110px; }

/* ---------- 区块 ---------- */
.section { padding-block: 56px; }
.section-white { background: var(--surface); }
.section-head { margin-bottom: 32px; max-width: 760px; }
.section-head h2 { font-size: 28px; }
.section-head .en { display: block; margin-top: 6px; font-size: 13px; letter-spacing: .14em; color: var(--blue); font-weight: 600; }
.section-head .en::after { content: ""; display: block; width: 36px; height: 3px; border-radius: 2px; background: var(--blue); margin-top: 12px; }
.section-head p { margin-top: 16px; font-size: 16px; }
@media (min-width: 960px) {
  .section { padding-block: 96px; }
  .section-head { margin-bottom: 48px; }
  .section-head h2 { font-size: 38px; }
  .section-head p { font-size: 17px; }
}

.src { display: inline-block; vertical-align: middle; font-style: normal; font-size: 12px; font-weight: 600; line-height: 1; padding: 4px 7px; border-radius: 5px; white-space: nowrap; color: var(--blue); background: var(--blue-soft); }
.src-said { color: var(--amber); background: var(--amber-soft); }
.legend { display: flex; flex-wrap: wrap; gap: 8px 24px; font-size: 14px; color: var(--muted); }
.legend span { display: inline-flex; align-items: center; gap: 8px; }

/* ---------- 首屏 ---------- */
.hero { position: relative; overflow: hidden; background: linear-gradient(160deg, #E6EEFF 0%, #F4F7FD 45%, #FFF1E6 100%); }
.hero-bgimg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; opacity: .9; }
.hero::after { content: ""; position: absolute; right: -120px; top: -160px; width: 620px; height: 620px; border-radius: 50%; background: radial-gradient(circle, rgba(37,99,235,.20), transparent 68%); pointer-events: none; }
.hero .wrap { position: relative; z-index: 1; display: grid; gap: 36px; padding-block: 44px 32px; }
.hero .wrap > * { min-width: 0; }
.hero-tag { display: inline-block; font-size: 14px; font-weight: 600; color: var(--blue); background: #fff; padding: 6px 14px; border-radius: 99px; box-shadow: var(--shadow); margin-bottom: 20px; }
.hero h1 { font-size: 38px; line-height: 1.2; font-weight: 800; }
.hero h1 em { font-style: normal; color: var(--blue); }
.hero-sub { margin-top: 18px; font-size: 18px; max-width: 28em; }
.hero-cta { margin-top: 28px; display: flex; flex-wrap: wrap; gap: 12px; }
.hero-strip { position: relative; z-index: 1; display: grid; gap: 10px; padding-block: 20px 28px; font-size: 14px; color: var(--body); border-top: 1px solid rgba(15,36,71,.08); }
.hero-strip b { color: var(--ink); margin-right: 8px; }
@media (min-width: 960px) {
  .hero .wrap { grid-template-columns: 11fr 10fr; gap: 56px; align-items: center; padding-block: 88px 64px; }
  .hero h1 { font-size: 60px; }
  .hero-sub { font-size: 20px; }
  .hero-strip { grid-template-columns: repeat(3, 1fr); gap: 32px; }
}

/* 首屏右侧：审图结果窗口 */
.sheet { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow-lg); overflow: hidden; }
.sheet-bar { display: flex; align-items: center; gap: 10px; padding: 12px 16px; border-bottom: 1px solid var(--line); font-size: 13px; color: var(--muted); }
.sheet-bar b { color: var(--ink); font-size: 14px; }
.sheet-bar .ok { margin-left: auto; color: var(--green); background: var(--green-soft); padding: 4px 9px; border-radius: 99px; font-weight: 600; font-size: 12px; white-space: nowrap; }
.sheet svg { width: 100%; height: auto; background: #FAFBFE; }
.dwg * { fill: none; stroke: var(--ink); stroke-width: 1.2; vector-effect: non-scaling-stroke; }
.dwg .thin { stroke: #9AA7BF; stroke-width: .8; }
.dwg .hid { stroke: #9AA7BF; stroke-dasharray: 5 4; stroke-width: .9; }
.dim line { stroke: #9AA7BF; stroke-width: .8; vector-effect: non-scaling-stroke; }
.dim .ext { stroke-dasharray: 2 3; }
.dim text { fill: #7C8AA5; font-family: var(--font-mono); font-size: 11px; }
.rev path, .rev line { fill: none; stroke: var(--pen); stroke-width: 1.6; vector-effect: non-scaling-stroke; }
.rev .tag { fill: var(--pen); stroke: none; }
.rev text { fill: #fff; font-family: var(--font-mono); font-size: 12px; font-weight: 700; }
.marks li { display: grid; grid-template-columns: 22px 1fr; gap: 12px; padding: 13px 16px; border-top: 1px solid var(--line); }
.marks b { width: 22px; height: 22px; border-radius: 50%; background: var(--pen); color: #fff; font-family: var(--font-mono); font-size: 12px; display: grid; place-content: center; margin-top: 3px; }
.marks p { font-size: 14.5px; line-height: 1.6; color: var(--body); }
.marks strong { color: var(--pen); }
.sheet-cap { padding: 10px 16px; font-size: 12.5px; color: var(--muted); border-top: 1px solid var(--line); background: #FAFBFE; }
@media (prefers-reduced-motion: no-preference) {
  .rev path { stroke-dasharray: 600; stroke-dashoffset: 600; animation: draw 1.1s ease-out .5s forwards; }
  .rev path:nth-of-type(2) { animation-delay: 1.5s; }
}
@keyframes draw { to { stroke-dashoffset: 0; } }

/* ---------- 公司简介 ---------- */
.about { display: grid; gap: 32px; }
.about > * { min-width: 0; }
.about-lead { background: var(--blue-soft); border-radius: 14px; padding: 18px 20px; color: var(--ink); font-weight: 600; font-size: 17px; }
.about p + p { margin-top: 14px; }
.about-text > p { margin-top: 18px; }
.badges { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 32px; }
.badge { background: #fff; border: 1px solid var(--line); border-radius: 14px; padding: 14px 16px; font-weight: 600; color: var(--ink); font-size: 15px; display: flex; align-items: center; gap: 10px; box-shadow: var(--shadow); }
.badge::before { content: ""; width: 10px; height: 10px; border-radius: 3px; background: var(--blue); flex: none; }
@media (min-width: 960px) { .about { grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; } .badges { grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 48px; } }

/* ---------- 数字带 ---------- */
.stats-band { background: linear-gradient(120deg, #123A9C, #2563EB 60%, #3B82F6); border-radius: 24px; padding: 28px 22px; color: #D9E5FF; display: grid; gap: 24px; box-shadow: var(--shadow-lg); }
.stats-band h3 { color: #fff; font-size: 22px; }
.stats-band h3 + p { margin-top: 6px; font-size: 14px; color: #C5D6FF; }
.stats { display: grid; grid-template-columns: 1fr 1fr; gap: 22px 16px; }
.stat b { display: block; font-family: var(--font-num); font-size: 40px; line-height: 1.05; color: #fff; font-weight: 700; }
.stat b small { font-family: var(--font); font-size: 15px; font-weight: 500; margin-left: 4px; }
.stat p { margin-top: 6px; font-size: 14px; line-height: 1.5; }
@media (min-width: 960px) { .stats-band { grid-template-columns: 3fr 9fr; gap: 48px; padding: 48px 52px; align-items: center; } .stats { grid-template-columns: repeat(4, 1fr); gap: 32px; } .stat b { font-size: 54px; } }

/* ---------- 业务卡片 ---------- */
.services { display: grid; gap: 18px; }
.service { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column; transition: transform .2s, box-shadow .2s; }
.service:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service .shot { border-radius: 0; }
.service-body { padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.service h3 { font-size: 20px; }
.service p { font-size: 15px; }
.service-foot { margin-top: auto; padding-top: 14px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px 12px; font-size: 13px; color: var(--muted); }
.st { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 600; padding: 4px 10px; border-radius: 99px; color: var(--amber); background: var(--amber-soft); }
.st-on { color: var(--green); background: var(--green-soft); }
.st::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
@media (min-width: 640px) { .services { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1080px) { .services { grid-template-columns: repeat(3, 1fr); gap: 24px; } }

/* ---------- 首页案例大图 ---------- */
.case-tile { position: relative; border-radius: 24px; overflow: hidden; background: var(--navy); color: #D5E0F5; box-shadow: var(--shadow-lg); }
.case-tile .shot { position: absolute; inset: 0; border-radius: 0; aspect-ratio: auto; background: linear-gradient(135deg, #0B1E42, #17408F); }
.case-tile .shot::before { position: absolute; right: 20px; bottom: 16px; color: rgba(255,255,255,.4); }
.case-tile::after { content: ""; position: absolute; inset: 0; background: linear-gradient(90deg, rgba(8,22,52,.94) 0%, rgba(8,22,52,.78) 55%, rgba(8,22,52,.35) 100%); }
.case-inner { position: relative; z-index: 1; padding: 32px 22px; max-width: 760px; }
.case-inner .kicker { font-size: 14px; color: #9DB7F5; font-weight: 600; }
.case-inner h3 { margin-top: 10px; color: #fff; font-size: 26px; line-height: 1.4; }
.case-inner > p { margin-top: 14px; font-size: 16px; }
.case-nums { margin-top: 26px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.case-nums b { display: block; font-family: var(--font-num); font-size: 32px; line-height: 1.1; color: #fff; }
.case-nums b small { font-family: var(--font); font-size: .45em; font-weight: 500; margin-left: 3px; }
.case-nums span { display: block; margin-top: 6px; font-size: 13px; line-height: 1.45; color: #B6C6E6; }
.case-inner .btn { margin-top: 30px; }
@media (min-width: 960px) { .case-inner { padding: 64px 60px; } .case-inner h3 { font-size: 36px; } .case-nums b { font-size: 48px; } }

/* 小图块（深色叠字） */
.tiles { display: grid; gap: 18px; margin-top: 18px; }
.tile { position: relative; border-radius: var(--radius); overflow: hidden; background: var(--navy); color: #CBD8F0; min-height: 220px; display: flex; }
.tile .shot { position: absolute; inset: 0; border-radius: 0; aspect-ratio: auto; background: linear-gradient(135deg, #0F2A5E, #1B4DB0); }
.tile .shot::before { position: absolute; right: 16px; top: 14px; color: rgba(255,255,255,.35); }
.tile::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(8,22,52,.25), rgba(8,22,52,.9)); }
.tile-body { position: relative; z-index: 1; padding: 24px; margin-top: auto; }
.tile h3 { color: #fff; font-size: 20px; }
.tile p { margin-top: 8px; font-size: 14.5px; }
@media (min-width: 760px) { .tiles { grid-template-columns: repeat(3, 1fr); gap: 24px; margin-top: 24px; } .tile { min-height: 280px; } }

/* ---------- 流程 ---------- */
.steps { display: grid; gap: 18px; }
.step { background: #fff; border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow); position: relative; }
.step-no { display: inline-grid; place-content: center; width: 44px; height: 44px; border-radius: 12px; background: var(--blue-soft); color: var(--blue); font-family: var(--font-num); font-size: 20px; font-weight: 700; }
.step h3 { margin-top: 16px; font-size: 21px; }
.step h3 span { font-size: 14px; font-weight: 500; color: var(--muted); margin-left: 8px; }
.step p { margin-top: 10px; font-size: 15px; }
.pledge { margin-top: 20px; padding: 20px 24px; border-radius: var(--radius); background: #FFF4EA; border: 1px solid #FFD9BC; color: var(--ink); font-size: 17px; font-weight: 600; }
@media (min-width: 900px) { .steps { grid-template-columns: repeat(3, 1fr); gap: 24px; } }

/* ---------- 文章 ---------- */
.posts { display: grid; gap: 18px; }
.post { background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); display: flex; flex-direction: column; }
.post img { width: 100%; aspect-ratio: 5 / 2; object-fit: cover; }
.post-body { padding: 18px 20px 22px; display: grid; gap: 8px; }
.post h3 { font-size: 17px; line-height: 1.5; }
.post p { font-size: 14px; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
@media (min-width: 640px) { .posts { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1080px) { .posts { grid-template-columns: repeat(4, 1fr); gap: 24px; } }

/* ---------- FAQ ---------- */
.faq-layout { display: grid; gap: 8px; }
.faq-layout > * { min-width: 0; }
.faq { display: grid; gap: 12px; }
.faq details { background: #fff; border-radius: 14px; box-shadow: var(--shadow); padding: 0 22px; }
.faq summary { list-style: none; cursor: pointer; display: flex; align-items: center; gap: 16px; padding: 20px 0; font-size: 17px; font-weight: 600; color: var(--ink); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; margin-left: auto; flex: none; width: 28px; height: 28px; border-radius: 50%; background: var(--blue-soft); color: var(--blue); display: grid; place-content: center; font-size: 18px; font-weight: 400; }
.faq details[open] summary::after { content: "–"; background: var(--blue); color: #fff; }
.faq details p { padding: 0 0 22px; max-width: 44em; font-size: 15.5px; }
@media (min-width: 960px) { .faq-layout { grid-template-columns: 4fr 8fr; gap: 64px; } }

/* ---------- 预约 / 联系 ---------- */
.book-band { background: linear-gradient(135deg, #0B1E42, #17408F); border-radius: 24px; padding: 28px 20px; color: #C9D7F2; display: grid; gap: 32px; box-shadow: var(--shadow-lg); }
.book-band > * { min-width: 0; }
.book-info h2 { font-size: 28px; color: #fff; }
.book-info p { margin-top: 14px; font-size: 16px; }
.book-info ul { margin-top: 20px; display: grid; gap: 10px; color: #fff; font-size: 15px; }
.book-info li { padding-left: 24px; position: relative; }
.book-info li::before { content: ""; position: absolute; left: 0; top: .55em; width: 10px; height: 6px; border-left: 2px solid var(--orange-a); border-bottom: 2px solid var(--orange-a); transform: rotate(-45deg); }
.qr { margin-top: 28px; display: flex; align-items: center; gap: 14px; font-size: 14px; }
.qr-box { width: 96px; height: 96px; flex: none; border: 1px dashed rgba(255,255,255,.4); border-radius: 12px; display: grid; place-content: center; text-align: center; font-size: 12px; line-height: 1.4; padding: 6px; }
.form { background: #fff; border-radius: var(--radius); padding: 24px 20px; display: grid; gap: 16px; min-width: 0; color: var(--body); }
.form-row { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; min-width: 0; }
.field label { font-size: 14px; font-weight: 600; color: var(--ink); }
.field label i { font-style: normal; color: var(--pen); margin-left: 3px; }
.field label small { font-weight: 400; color: var(--muted); }
.field input, .field select, .field textarea { width: 100%; font: inherit; font-size: 16px; color: var(--ink); padding: 11px 13px; border: 1px solid #CBD5E6; border-radius: 10px; background: #fff; }
.field textarea { resize: vertical; min-height: 88px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--blue); box-shadow: 0 0 0 3px rgba(37,99,235,.16); }
.field.invalid input, .field.invalid select { border-color: var(--pen); }
.err { font-size: 13px; color: var(--pen); }
.agree { display: flex; align-items: flex-start; gap: 10px; font-size: 14px; }
.field .agree input { width: 18px; height: 18px; margin-top: 4px; flex: none; padding: 0; }
.form .btn { width: 100%; }
.form-ok { text-align: center; padding: 48px 12px; }
.form-ok h3 { font-size: 22px; }
.form-ok p { margin-top: 10px; }
@media (min-width: 640px) { .form { padding: 32px; } .form-row { grid-template-columns: 1fr 1fr; } }
@media (min-width: 960px) { .book-band { grid-template-columns: 5fr 6fr; gap: 56px; padding: 56px; align-items: start; } .book-info h2 { font-size: 36px; } }

/* ---------- 页脚 ---------- */
.site-footer { background: #fff; border-top: 1px solid var(--line); font-size: 14px; color: var(--body); margin-top: 0; }
.site-footer .wrap { padding-block: 44px 24px; display: grid; gap: 28px; }
.footer-brand { display: flex; align-items: center; gap: 10px; color: var(--ink); font-size: 20px; font-weight: 800; }
.footer-brand img { width: 32px; height: 32px; }
.footer-slogan { margin-top: 12px; color: var(--ink); font-size: 17px; font-weight: 600; }
.footer-slogan span { display: block; font-size: 14px; font-weight: 400; color: var(--muted); }
.footer-col h4 { font-size: 15px; margin-bottom: 12px; }
.footer-col ul { display: grid; gap: 8px; }
.footer-col a { color: var(--body); }
.todo { color: var(--muted); border-bottom: 1px dashed #C3CDE0; }
.footer-qr { display: flex; gap: 12px; }
.footer-qr .qr-box { border-color: #C3CDE0; color: var(--muted); width: 84px; height: 84px; }
.footer-base { padding-top: 20px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; gap: 6px 20px; font-size: 13px; color: var(--muted); }
@media (min-width: 900px) { .site-footer .wrap { grid-template-columns: 4fr 2fr 3fr 3fr; gap: 40px; } .footer-base { grid-column: 1 / -1; } }

/* ====================== 案例详情页 ====================== */
.case-hero { position: relative; background: linear-gradient(160deg, #E6EEFF 0%, #F4F7FD 60%, #FFF1E6 100%); }
.case-hero .wrap { padding-block: 36px 48px; }
.crumb { font-size: 14px; color: var(--muted); margin-bottom: 20px; }
.crumb a { color: var(--body); }
.case-hero h1 { font-size: 32px; font-weight: 800; max-width: 18em; }
.case-hero .lede { margin-top: 16px; font-size: 18px; max-width: 38em; }
.case-meta { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.chip { font-size: 13px; font-weight: 600; padding: 6px 12px; border-radius: 99px; background: #fff; color: var(--blue); box-shadow: var(--shadow); }
.case-cover { margin-top: 32px; box-shadow: var(--shadow-lg); aspect-ratio: 21 / 9; }
.headline-result { margin-top: 28px; display: grid; gap: 16px; }
.headline-result > div { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.headline-result b { display: block; font-family: var(--font-num); font-size: 46px; line-height: 1.05; color: var(--blue); font-weight: 700; }
.headline-result b small { font-family: var(--font); font-size: 16px; margin-left: 5px; font-weight: 500; color: var(--body); }
.headline-result p { margin-top: 10px; font-size: 15px; }
.headline-result .src { margin-top: 12px; }
@media (min-width: 760px) { .headline-result { grid-template-columns: repeat(3, 1fr); gap: 24px; } }
@media (min-width: 960px) { .case-hero .wrap { padding-block: 64px 72px; } .case-hero h1 { font-size: 52px; } .headline-result b { font-size: 64px; } }

.case-page .section:nth-of-type(even) { background: var(--surface); }
.prose { max-width: 760px; font-size: 17px; }
.prose p + p { margin-top: 16px; }
.prose strong { color: var(--ink); }
.facts { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 32px; }
.fact { background: var(--bg); border-radius: 14px; padding: 20px; }
.fact b { display: block; font-family: var(--font-num); font-size: 34px; color: var(--ink); line-height: 1.15; }
.fact span { display: block; margin-top: 4px; font-size: 14px; line-height: 1.5; }
@media (min-width: 900px) { .facts { grid-template-columns: repeat(4, 1fr); gap: 20px; } .fact { padding: 26px; } .fact b { font-size: 44px; } }

.before-list { display: grid; gap: 14px; }
.before { background: #fff; border-radius: var(--radius); padding: 22px; display: grid; gap: 12px; box-shadow: var(--shadow); }
.before-num { font-family: var(--font-num); font-size: 42px; font-weight: 700; line-height: 1; color: var(--orange-b); }
.before-num small { font-family: var(--font); font-size: 15px; font-weight: 600; margin-left: 4px; color: var(--body); }
.before h3 { font-size: 19px; }
.before p { margin-top: 6px; font-size: 15.5px; }
.before .src { margin-top: 12px; }
@media (min-width: 760px) { .before { grid-template-columns: 200px 1fr; gap: 28px; padding: 28px 32px; align-items: start; } .before-num { font-size: 52px; } }

.quote { margin-top: 36px; padding: 28px 24px; border-radius: var(--radius); background: linear-gradient(135deg, #0B1E42, #17408F); color: #fff; }
.quote p { font-size: 20px; line-height: 1.6; font-weight: 600; }
.quote cite { display: block; margin-top: 14px; font-style: normal; font-size: 14px; color: #B6C6E6; }
@media (min-width: 960px) { .quote { padding: 44px 48px; } .quote p { font-size: 28px; } }

.timeline { display: grid; border-left: 2px solid #CFDBF2; margin-left: 6px; }
.tl { position: relative; padding: 0 0 30px 26px; }
.tl:last-child { padding-bottom: 0; }
.tl::before { content: ""; position: absolute; left: -8px; top: 7px; width: 14px; height: 14px; border-radius: 50%; background: #fff; border: 3px solid var(--blue); }
.tl.key::before { border-color: var(--orange-b); background: var(--orange-b); box-shadow: 0 0 0 5px rgba(252,110,25,.18); }
.tl time { font-family: var(--font-num); font-size: 14px; font-weight: 700; color: var(--blue); }
.tl h3 { margin-top: 2px; font-size: 19px; }
.tl p { margin-top: 6px; font-size: 15.5px; max-width: 44em; }
@media (min-width: 900px) { .timeline { margin-left: 170px; } .tl { padding-left: 40px; padding-bottom: 40px; } .tl time { position: absolute; left: -180px; top: 3px; width: 150px; text-align: right; } }

.finds { display: grid; gap: 16px; }
.find { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); }
.find-head { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--muted); }
.sev { width: 24px; height: 24px; border-radius: 50%; display: grid; place-content: center; font-family: var(--font-mono); font-weight: 700; font-size: 12px; flex: none; background: var(--pen); color: #fff; }
.find h3 { margin-top: 14px; font-size: 20px; }
.find p { margin-top: 8px; font-size: 15.5px; }
.find .after { margin-top: 12px; padding-top: 12px; border-top: 1px dashed var(--line); color: var(--ink); }
@media (min-width: 900px) { .finds { grid-template-columns: repeat(3, 1fr); gap: 24px; } }

.table-scroll { overflow-x: auto; background: #fff; border-radius: var(--radius); box-shadow: var(--shadow); }
.compare { width: 100%; min-width: 720px; border-collapse: collapse; font-size: 15.5px; }
.compare th, .compare td { text-align: left; vertical-align: top; padding: 18px 22px; border-bottom: 1px solid var(--line); }
.compare thead th { font-size: 13px; color: var(--muted); background: var(--blue-soft); font-weight: 600; }
.compare tbody th { width: 130px; color: var(--ink); }
.compare td:nth-child(2) { width: 32%; }
.compare td:nth-child(3) { color: var(--ink); }
.compare tr:last-child th, .compare tr:last-child td { border-bottom: 0; }
.compare b { font-family: var(--font-num); font-size: 18px; color: var(--blue); }
.compare .state { display: flex; align-items: center; gap: 8px; margin-top: 10px; font-size: 13px; color: var(--muted); }
.note { margin-top: 18px; font-size: 14px; color: var(--muted); max-width: 56em; }

.misses { display: grid; gap: 16px; }
.miss { background: #fff; border-radius: var(--radius); padding: 24px; box-shadow: var(--shadow); border-top: 4px solid var(--orange-a); }
.miss h3 { font-size: 19px; }
.miss p { margin-top: 8px; font-size: 15.5px; }
.miss p b { color: var(--ink); }
@media (min-width: 760px) { .misses { grid-template-columns: 1fr 1fr; gap: 24px; } .miss { padding: 28px; } }

.cta-band { text-align: center; background: linear-gradient(135deg, #0B1E42, #17408F); border-radius: 24px; padding: 44px 20px; color: #C9D7F2; }
.cta-band h2 { font-size: 28px; color: #fff; }
.cta-band p { margin: 14px auto 0; max-width: 32em; }
.cta-band .btn { margin-top: 26px; }
@media (min-width: 960px) { .cta-band { padding: 72px 40px; } .cta-band h2 { font-size: 40px; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* 首屏底部信息条：覆盖 .hero .wrap 的两栏网格 */
.hero .wrap.hero-strip { display: grid; grid-template-columns: 1fr; gap: 10px; padding-block: 20px 28px; align-items: start; }
@media (min-width: 960px) { .hero .wrap.hero-strip { grid-template-columns: repeat(3, 1fr); gap: 32px; padding-block: 24px 36px; } }

/* ---------- 反馈闭环 ---------- */
.loop { display: grid; gap: 14px; counter-reset: none; }
.loop-step { position: relative; background: #fff; border-radius: var(--radius); padding: 24px 22px; box-shadow: var(--shadow); min-width: 0; }
.loop-no { display: inline-grid; place-content: center; width: 40px; height: 40px; border-radius: 50%; background: var(--blue); color: #fff; font-family: var(--font-num); font-size: 18px; font-weight: 700; }
.loop-step h3 { margin-top: 14px; font-size: 19px; }
.loop-step p { margin-top: 8px; font-size: 15px; }
.loop-data { margin-top: 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.loop-data > div { background: var(--navy); border-radius: var(--radius); padding: 22px 20px; color: #B6C6E6; min-width: 0; }
.loop-data b { display: block; font-family: var(--font-num); font-size: 38px; line-height: 1.1; color: #fff; }
.loop-data b small { font-family: var(--font); font-size: 15px; font-weight: 500; margin-left: 4px; }
.loop-data p { margin-top: 8px; font-size: 14px; line-height: 1.55; }
.loop-note { margin-top: 18px; padding: 18px 22px; border-radius: var(--radius); background: #fff; border: 1px dashed #B9C8E6; font-size: 15px; }
.loop-note b { color: var(--ink); }
@media (min-width: 900px) {
  .loop { grid-template-columns: repeat(4, 1fr); gap: 28px; }
  .loop-step:not(:last-child)::after { content: ""; position: absolute; right: -22px; top: 44px; width: 16px; height: 2px; background: var(--blue); box-shadow: 4px 0 0 -0 var(--blue); }
  .loop-step:not(:last-child)::before { content: ""; position: absolute; right: -24px; top: 40px; border-left: 8px solid var(--blue); border-top: 5px solid transparent; border-bottom: 5px solid transparent; }
  .loop-data { grid-template-columns: repeat(4, 1fr); gap: 28px; margin-top: 28px; }
  .loop-data b { font-size: 50px; }
}