/* fde.cash 全站样式 —— 品牌蓝 + 系统字体，不依赖任何外部资源 */

:root {
  --blue-900: #12324f;
  --blue-800: #1f4e79;
  --blue-600: #2e74b5;
  --blue-400: #7fb3e6;
  --blue-100: #deeaf6;
  --blue-50: #f2f7fc;
  --ink: #1b2430;
  --ink-2: #3b4655;
  --muted: #5b6675;
  --line: #e3e8ef;
  --bg: #ffffff;
  --bg-soft: #f6f8fb;
  --green: #2f8a57;
  --green-bg: #e7f4ec;
  --yellow: #a86c00;
  --yellow-bg: #fdf3dc;
  --red: #b3392f;
  --red-bg: #fbe9e7;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 2px rgba(18, 50, 79, .06), 0 6px 24px rgba(18, 50, 79, .07);
  --container: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
[id] { scroll-margin-top: 84px; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; height: auto; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { color: var(--blue-900); line-height: 1.35; margin: 0 0 .6em; font-weight: 700; }
h1 { font-size: clamp(30px, 4.6vw, 48px); letter-spacing: -.01em; }
h2 { font-size: clamp(24px, 3vw, 32px); }
h3 { font-size: 19px; }
h4 { font-size: 16px; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.3em; }
strong { color: var(--blue-800); }
small, .fine { font-size: 13px; color: var(--muted); line-height: 1.6; }
.muted { color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.skip-link { position: absolute; left: -9999px; top: 8px; background: var(--blue-800); color: #fff; padding: 8px 14px; border-radius: 6px; z-index: 100; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--blue-400); outline-offset: 2px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 20px; }
.narrow { max-width: 780px; }
.section { padding: 72px 0; }
.section-sm { padding: 48px 0; }
.section-soft { background: var(--bg-soft); }
.section-blue { background: var(--blue-50); }
.section-head { max-width: 760px; margin-bottom: 36px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { color: var(--ink-2); font-size: 17px; }
.eyebrow { display: inline-block; font-size: 13px; font-weight: 700; letter-spacing: .08em; color: var(--blue-600); margin-bottom: 10px; }
.lead { font-size: 18px; color: var(--ink-2); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font: inherit; font-weight: 600; font-size: 16px; line-height: 1.2;
  padding: 13px 22px; border-radius: 999px; border: 1.5px solid transparent;
  cursor: pointer; text-decoration: none; transition: background .15s, color .15s, border-color .15s, transform .15s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:disabled { opacity: .45; cursor: not-allowed; transform: none; }
.btn-primary { background: var(--blue-800); color: #fff; }
.btn-primary:hover { background: var(--blue-900); }
.btn-secondary { background: #fff; color: var(--blue-800); border-color: var(--blue-800); }
.btn-secondary:hover { background: var(--blue-50); }
.btn-light { background: #fff; color: var(--blue-800); }
.btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.6); }
.btn-ghost-light:hover { background: rgba(255,255,255,.1); }
.btn-sm { padding: 9px 16px; font-size: 14px; }
.btn-block { width: 100%; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.link-button { background: none; border: 0; padding: 0; font: inherit; color: inherit; cursor: pointer; }
.link-button:hover { text-decoration: underline; }
.text-link { font-weight: 600; }
.text-link::after { content: " →"; }

/* ---------- 页头 ---------- */
.site-header { position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.94); backdrop-filter: saturate(160%) blur(8px); border-bottom: 1px solid var(--line); }
.header-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { display: inline-flex; align-items: center; gap: 10px; color: var(--blue-900); }
.brand:hover { text-decoration: none; }
.brand-mark { width: 36px; height: 36px; flex: none; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-text strong { font-size: 19px; letter-spacing: .04em; color: inherit; }
.brand-text span { font-size: 12px; color: var(--muted); }
.brand-light { color: #fff; }
.brand-light .brand-text span { color: rgba(255,255,255,.7); }
.site-nav { display: flex; align-items: center; gap: 4px; }
.site-nav a { color: var(--ink-2); padding: 8px 12px; border-radius: 8px; font-size: 15px; }
.site-nav a:hover { color: var(--blue-800); background: var(--blue-50); text-decoration: none; }
.site-nav a[aria-current="page"] { color: var(--blue-800); font-weight: 700; background: var(--blue-50); }
.site-nav .btn { margin-left: 10px; }
.nav-toggle { display: none; width: 44px; height: 44px; border: 0; background: transparent; cursor: pointer; position: relative; }
.nav-toggle-bar, .nav-toggle-bar::before, .nav-toggle-bar::after { position: absolute; left: 11px; width: 22px; height: 2px; background: var(--blue-900); border-radius: 2px; transition: transform .2s; content: ""; }
.nav-toggle-bar { top: 21px; }
.nav-toggle-bar::before { left: 0; top: -7px; }
.nav-toggle-bar::after { left: 0; top: 7px; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar::after { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 1120px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: absolute; top: 68px; left: 0; right: 0; display: none;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line); padding: 8px 20px 20px; box-shadow: var(--shadow);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 13px 4px; border-radius: 0; border-bottom: 1px solid var(--line); font-size: 16px; }
  .site-nav a[aria-current="page"] { background: transparent; }
  .site-nav .btn { margin: 16px 0 0; }
}

/* ---------- 首屏 ---------- */
.hero { background: linear-gradient(160deg, var(--blue-900) 0%, var(--blue-800) 55%, #275f93 100%); color: #fff; padding: 88px 0 80px; position: relative; overflow: hidden; }
.hero::after { content: ""; position: absolute; right: -120px; top: -80px; width: 460px; height: 460px; border-radius: 50%; background: radial-gradient(circle, rgba(127,179,230,.28), rgba(127,179,230,0) 70%); pointer-events: none; }
.hero h1 { color: #fff; max-width: 820px; }
.hero .lead { color: rgba(255,255,255,.86); max-width: 720px; font-size: 19px; }
.hero .eyebrow { color: var(--blue-400); }
.hero .btn-row { margin-top: 28px; }
.hero-note { margin-top: 22px; font-size: 14px; color: rgba(255,255,255,.7); }
.page-hero { background: var(--blue-50); padding: 64px 0 48px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(28px, 4vw, 42px); }
.page-hero .lead { max-width: 760px; }
.breadcrumb { font-size: 13px; color: var(--muted); margin-bottom: 12px; }
.breadcrumb a { color: var(--muted); }

/* ---------- 栅格与卡片 ---------- */
.grid { display: grid; gap: 20px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 900px) { .grid-3, .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 640px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); } }

.card { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; }
.card-shadow { box-shadow: var(--shadow); border-color: transparent; }
.card h3 { margin-bottom: .45em; }
.card p:last-child, .card ul:last-child { margin-bottom: 0; }
.card-link { display: flex; flex-direction: column; color: inherit; transition: border-color .15s, box-shadow .15s, transform .15s; }
.card-link:hover { text-decoration: none; border-color: var(--blue-400); box-shadow: var(--shadow); transform: translateY(-2px); }
.card-link .text-link { margin-top: auto; padding-top: 12px; color: var(--blue-600); }
.card-icon { width: 44px; height: 44px; border-radius: 10px; background: var(--blue-100); color: var(--blue-800); display: grid; place-items: center; font-weight: 800; font-size: 18px; margin-bottom: 16px; }
.card-accent { border-top: 4px solid var(--blue-600); }

.path-card { padding: 30px 26px; }
.path-card .who { font-size: 13px; color: var(--muted); margin-bottom: 6px; }

/* 数据信号 */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 900px) { .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .stats { grid-template-columns: minmax(0, 1fr); } }
.stat { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; }
.stat-num { font-size: 34px; font-weight: 800; color: var(--blue-800); line-height: 1.1; font-variant-numeric: tabular-nums; }
.stat-label { margin: 8px 0 10px; color: var(--ink-2); font-size: 15px; }
.stat-src { font-size: 12px; color: var(--muted); }

/* 三根支柱 */
.pillars { display: grid; gap: 16px; }
.pillar-roof { background: var(--blue-800); color: #fff; border-radius: var(--radius); padding: 22px 26px; text-align: center; }
.pillar-roof strong { color: #fff; font-size: 20px; display: block; }
.pillar-roof span { color: rgba(255,255,255,.8); font-size: 15px; }
.pillar-base { background: var(--blue-100); border-radius: var(--radius); padding: 16px 22px; text-align: center; color: var(--blue-900); font-weight: 600; }

/* 五个环节 */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 14px; counter-reset: step; }
@media (max-width: 960px) { .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .steps { grid-template-columns: minmax(0, 1fr); } }
.steps li { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; position: relative; counter-increment: step; }
.steps li::before { content: counter(step, decimal-leading-zero); display: block; font-size: 13px; font-weight: 800; color: var(--blue-600); margin-bottom: 6px; letter-spacing: .06em; }
.steps h3 { font-size: 17px; margin-bottom: 6px; }
.steps p { font-size: 14px; color: var(--ink-2); margin: 0; }
.steps .lesson { display: block; margin-top: 10px; font-size: 12px; color: var(--muted); }

/* 流程链 */
.chain { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 0; padding: 0; list-style: none; }
.chain li { background: #fff; border: 1px solid var(--blue-100); color: var(--blue-900); font-weight: 600; padding: 10px 16px; border-radius: 999px; font-size: 15px; }
.chain li + li::before { content: "→"; color: var(--blue-400); margin: 0 10px 0 -2px; font-weight: 400; }

/* ---------- 表格 ---------- */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--line); border-radius: var(--radius); background: #fff; }
table { width: 100%; border-collapse: collapse; font-size: 15px; min-width: 560px; }
th, td { text-align: left; vertical-align: top; padding: 14px 16px; border-bottom: 1px solid var(--line); }
th { background: var(--blue-100); color: var(--blue-900); font-weight: 700; white-space: nowrap; }
tr:last-child td { border-bottom: 0; }
td strong { color: var(--blue-800); }
.table-note { font-size: 13px; color: var(--muted); margin-top: 10px; }

/* ---------- 标签 ---------- */
.tag { display: inline-block; font-size: 12px; font-weight: 600; line-height: 1; padding: 6px 9px; border-radius: 999px; background: var(--blue-100); color: var(--blue-800); }
.tag-gray { background: #eef1f5; color: var(--ink-2); }
.tag-green { background: var(--green-bg); color: var(--green); }
.tag-yellow { background: var(--yellow-bg); color: var(--yellow); }
.tag-red { background: var(--red-bg); color: var(--red); }
.tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }

/* 红黄绿 */
.rgy { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
@media (max-width: 760px) { .rgy { grid-template-columns: minmax(0, 1fr); } }
.rgy .card { border-top-width: 5px; }
.rgy .is-green { border-top-color: var(--green); }
.rgy .is-yellow { border-top-color: #e0a100; }
.rgy .is-red { border-top-color: var(--red); }
.rgy h3 { display: flex; align-items: center; gap: 8px; }
.dot { width: 12px; height: 12px; border-radius: 50%; display: inline-block; }
.dot-green { background: var(--green); } .dot-yellow { background: #e0a100; } .dot-red { background: var(--red); }

/* ---------- 案例 ---------- */
.filters { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.filter-btn { font: inherit; font-size: 14px; padding: 8px 16px; border-radius: 999px; border: 1px solid var(--line); background: #fff; color: var(--ink-2); cursor: pointer; }
.filter-btn:hover { border-color: var(--blue-400); }
.filter-btn[aria-pressed="true"] { background: var(--blue-800); border-color: var(--blue-800); color: #fff; }
.case-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px; }
@media (max-width: 760px) { .case-grid { grid-template-columns: minmax(0, 1fr); } }
.case-card { display: flex; flex-direction: column; }
.case-card[hidden] { display: none; }
.case-card h3 { font-size: 20px; }
.case-key { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 4px 0 14px; padding: 14px 16px; background: var(--blue-50); border-radius: var(--radius-sm); }
.case-key div { min-width: 120px; }
.case-key b { display: block; font-size: 22px; color: var(--blue-800); line-height: 1.2; }
.case-key span { font-size: 13px; color: var(--muted); }
.case-six { margin: 0; }
.case-six dt { font-weight: 700; color: var(--blue-900); font-size: 14px; margin-top: 10px; }
.case-six dd { margin: 2px 0 0; color: var(--ink-2); font-size: 15px; }
.case-source { margin-top: auto; padding-top: 14px; font-size: 12px; color: var(--muted); border-top: 1px dashed var(--line); }
details.more { margin-top: 6px; }
details.more summary { cursor: pointer; color: var(--blue-600); font-weight: 600; font-size: 15px; list-style: none; padding: 6px 0; }
details.more summary::-webkit-details-marker { display: none; }
details.more summary::after { content: " ＋"; }
details.more[open] summary::after { content: " －"; }

/* ---------- FAQ ---------- */
.faq details { border-bottom: 1px solid var(--line); padding: 4px 0; }
.faq summary { cursor: pointer; list-style: none; padding: 16px 32px 16px 0; font-weight: 700; color: var(--blue-900); position: relative; font-size: 17px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 4px; top: 12px; font-size: 24px; color: var(--blue-600); font-weight: 400; }
.faq details[open] summary::after { content: "−"; }
.faq .answer { padding: 0 0 18px; color: var(--ink-2); }

/* ---------- 正文排版（知识库等长文） ---------- */
.prose h2 { margin-top: 2em; padding-top: .2em; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { margin-top: 1.6em; }
.prose p, .prose li { color: var(--ink-2); }
.definition { border-left: 5px solid var(--blue-600); background: var(--blue-50); padding: 20px 24px; border-radius: 0 var(--radius) var(--radius) 0; font-size: 18px; color: var(--blue-900); margin: 0 0 28px; }
.definition strong { color: var(--blue-900); }
.callout { background: var(--yellow-bg); border: 1px solid #f0dca8; border-radius: var(--radius); padding: 18px 22px; color: #5d4300; font-size: 15px; }
.callout strong { color: #5d4300; }
.toc { background: var(--bg-soft); border-radius: var(--radius); padding: 20px 24px; font-size: 15px; }
.toc ol { margin: 0; }
.toc a { color: var(--ink-2); }
.with-aside { display: grid; grid-template-columns: minmax(0, 1fr) 260px; gap: 48px; align-items: start; }
.with-aside aside { position: sticky; top: 92px; }
@media (max-width: 960px) { .with-aside { grid-template-columns: minmax(0, 1fr); } .with-aside aside { position: static; order: -1; } }
.sources { font-size: 14px; }
.sources li { margin-bottom: 6px; }
.updated { font-size: 13px; color: var(--muted); }

/* ---------- 课程 ---------- */
.lessons { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; counter-reset: lesson; }
@media (max-width: 760px) { .lessons { grid-template-columns: minmax(0, 1fr); } }
.lesson { display: grid; grid-template-columns: 52px minmax(0, 1fr); gap: 14px; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 18px; }
.lesson-no { width: 52px; height: 52px; border-radius: 12px; background: var(--blue-800); color: #fff; display: grid; place-items: center; font-weight: 800; font-size: 18px; }
.lesson h3 { font-size: 17px; margin: 2px 0 4px; }
.lesson p { margin: 0; font-size: 14px; color: var(--ink-2); }
.lesson .out { display: block; margin-top: 6px; font-size: 13px; color: var(--blue-600); font-weight: 600; }
.deliverables { list-style: none; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; counter-reset: d; }
@media (max-width: 560px) { .deliverables { grid-template-columns: minmax(0, 1fr); } }
.deliverables li { counter-increment: d; background: #fff; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 12px 14px; font-weight: 600; color: var(--blue-900); }
.deliverables li::before { content: counter(d, decimal-leading-zero); color: var(--blue-600); margin-right: 10px; font-weight: 800; }
.prices { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; }
@media (max-width: 900px) { .prices { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 480px) { .prices { grid-template-columns: minmax(0, 1fr); } }
.price { background: #fff; border: 1.5px solid var(--line); border-radius: var(--radius); padding: 22px; position: relative; }
.price h3 { font-size: 16px; color: var(--ink-2); margin-bottom: 6px; }
.price .amount { font-size: 30px; font-weight: 800; color: var(--blue-900); line-height: 1.2; }
.price .amount small { font-size: 14px; font-weight: 500; color: var(--muted); }
.price .when { font-size: 14px; color: var(--muted); margin: 6px 0 0; }
.price.is-current { border-color: var(--blue-600); box-shadow: 0 0 0 3px var(--blue-100); }
.price.is-current::before { content: "当前价格"; position: absolute; top: -11px; left: 18px; background: var(--blue-600); color: #fff; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.price.is-past { opacity: .5; }
.price.is-past::before { content: "已截止"; position: absolute; top: -11px; left: 18px; background: #8a94a3; color: #fff; font-size: 12px; font-weight: 700; padding: 3px 10px; border-radius: 999px; }
.info-list { list-style: none; padding: 0; margin: 0; }
.info-list li { display: grid; grid-template-columns: 96px minmax(0, 1fr); gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--line); }
.info-list li:last-child { border-bottom: 0; }
.info-list b { color: var(--blue-900); }

/* ---------- 服务 ---------- */
.ladder { display: grid; gap: 14px; }
.rung { display: grid; grid-template-columns: 200px minmax(0, 1fr) 170px; gap: 20px; align-items: start; background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 22px 24px; }
@media (max-width: 820px) { .rung { grid-template-columns: minmax(0, 1fr); gap: 8px; } }
.rung h3 { margin: 0; font-size: 19px; }
.rung .meta { font-size: 13px; color: var(--muted); }
.rung p { margin: 0; color: var(--ink-2); font-size: 15px; }
.rung .fee { font-weight: 800; color: var(--blue-800); font-size: 18px; text-align: right; }
@media (max-width: 820px) { .rung .fee { text-align: left; } }
.rung.is-entry { border: 1.5px solid var(--blue-600); box-shadow: 0 0 0 3px var(--blue-100); }

/* ---------- 团队 ---------- */
.person { display: grid; grid-template-columns: 88px minmax(0, 1fr); gap: 18px; align-items: start; }
.avatar { width: 88px; height: 88px; border-radius: 50%; background: var(--blue-100); color: var(--blue-800); display: grid; place-items: center; font-weight: 800; font-size: 22px; }
.person h3 { margin: 4px 0 2px; font-size: 19px; }
.person .role { font-size: 14px; color: var(--blue-600); font-weight: 600; margin-bottom: 8px; }
.person p { font-size: 15px; color: var(--ink-2); }

/* ---------- 自测 ---------- */
.selftest { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow); }
.st-progress { height: 6px; background: var(--blue-100); border-radius: 999px; overflow: hidden; margin: 8px 0 24px; }
.st-progress span { display: block; height: 100%; width: 0; background: var(--blue-600); transition: width .2s; }
.st-stage { font-size: 13px; font-weight: 700; color: var(--blue-600); letter-spacing: .06em; }
.st-question { font-size: 19px; font-weight: 700; color: var(--blue-900); margin: 8px 0 18px; min-height: 2.6em; }
.st-options { display: grid; gap: 10px; }
.st-option { font: inherit; text-align: left; padding: 14px 18px; border: 1.5px solid var(--line); border-radius: var(--radius-sm); background: #fff; cursor: pointer; color: var(--ink); }
.st-option:hover { border-color: var(--blue-400); background: var(--blue-50); }
.st-option[aria-pressed="true"] { border-color: var(--blue-600); background: var(--blue-50); font-weight: 600; }
.st-nav { display: flex; justify-content: space-between; margin-top: 20px; }
.st-result h3 { margin-top: 0; }
.st-bars { display: grid; gap: 12px; margin: 18px 0 24px; }
.st-bar { display: grid; grid-template-columns: 120px minmax(0, 1fr) 48px; gap: 12px; align-items: center; font-size: 15px; }
@media (max-width: 480px) { .st-bar { grid-template-columns: 96px minmax(0, 1fr) 40px; font-size: 14px; } }
.st-track { height: 12px; background: #eef1f5; border-radius: 999px; overflow: hidden; }
.st-fill { height: 100%; border-radius: 999px; background: var(--blue-600); }
.st-fill.is-weak { background: var(--red); }
.st-bar.is-weak .st-name, .st-bar.is-weak .st-score { color: var(--red); font-weight: 700; }
.st-bar.is-weak .st-track { box-shadow: inset 0 0 0 1.5px var(--red); background: var(--red-bg); }
.st-score { text-align: right; font-variant-numeric: tabular-nums; color: var(--muted); }
.st-weak { background: var(--red-bg); border-radius: var(--radius); padding: 18px 20px; margin-bottom: 18px; }
.st-weak h4 { color: var(--red); margin-bottom: 6px; }
.st-weak p { margin: 0; color: var(--ink-2); }

/* ---------- 下载 ---------- */
.download-card { display: grid; grid-template-columns: 56px minmax(0, 1fr); gap: 16px; align-items: start; }
.file-icon { width: 56px; height: 68px; border-radius: 8px; background: var(--blue-100); color: var(--blue-800); display: grid; place-items: center; font-weight: 800; font-size: 13px; }

/* ---------- 行动条 ---------- */
.cta-band { background: var(--blue-800); color: #fff; border-radius: 18px; padding: 44px; display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 24px; align-items: center; }
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: rgba(255,255,255,.82); margin: 0; }
@media (max-width: 760px) { .cta-band { grid-template-columns: minmax(0, 1fr); padding: 32px 24px; } }

.quote { border-left: 4px solid var(--blue-600); padding: 6px 0 6px 20px; margin: 0; font-size: 18px; color: var(--blue-900); }
.quote cite { display: block; margin-top: 8px; font-size: 14px; font-style: normal; color: var(--muted); }

/* ---------- 页脚 ---------- */
.site-footer { background: var(--blue-900); color: rgba(255,255,255,.78); padding: 56px 0 28px; margin-top: 0; font-size: 15px; }
.site-footer a, .site-footer .link-button { color: rgba(255,255,255,.86); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.2fr); gap: 32px; }
@media (max-width: 860px) { .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: minmax(0, 1fr); } }
.footer-brand p { margin-top: 14px; }
.footer-title { color: #fff; font-size: 15px; margin-bottom: 12px; }
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.14); margin-top: 40px; padding-top: 20px; }
.footer-bottom p { margin: 0 0 6px; }
.site-footer .fine { color: rgba(255,255,255,.55); }
.qr { display: block; border-radius: 10px; background: #fff; padding: 6px; border: 1px solid var(--line); }
.qr-sm { width: 112px; height: 112px; margin-bottom: 10px; }

/* ---------- 弹窗表单 ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: grid; place-items: center; padding: 16px; }
.modal[hidden] { display: none; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(18, 50, 79, .55); }
.modal-panel { position: relative; background: #fff; border-radius: 16px; width: 100%; max-width: 560px; max-height: calc(100vh - 32px); overflow-y: auto; padding: 32px 28px 28px; box-shadow: 0 24px 64px rgba(0,0,0,.25); }
.modal-panel h2 { font-size: 24px; }
.modal-close { position: absolute; right: 12px; top: 10px; width: 40px; height: 40px; border: 0; background: transparent; font-size: 28px; line-height: 1; color: var(--muted); cursor: pointer; border-radius: 8px; }
.modal-close:hover { background: var(--bg-soft); }
.lead-step .qr { margin: 12px 0 0; }
.download-list { background: var(--blue-50); border-radius: var(--radius-sm); padding: 14px 18px; margin-bottom: 16px; }
.download-list ul { margin: 0; }
body.modal-open { overflow: hidden; }

form label { display: block; font-size: 14px; font-weight: 600; color: var(--ink-2); margin-bottom: 14px; }
.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0 14px; }
@media (max-width: 520px) { .form-grid { grid-template-columns: minmax(0, 1fr); } }
input, select, textarea {
  display: block; width: 100%; margin-top: 6px; font: inherit; font-size: 16px; font-weight: 400; color: var(--ink);
  padding: 11px 13px; border: 1.5px solid var(--line); border-radius: var(--radius-sm); background: #fff;
}
input:focus, select:focus, textarea:focus { border-color: var(--blue-600); outline: none; box-shadow: 0 0 0 3px var(--blue-100); }
textarea { resize: vertical; }
.req { color: var(--red); margin-left: 2px; }
.consent { display: flex !important; gap: 10px; align-items: flex-start; font-weight: 400 !important; font-size: 13px !important; color: var(--muted) !important; }
.consent input { width: auto; margin-top: 4px; flex: none; }
.form-error { color: var(--red); font-size: 14px; margin: -4px 0 12px; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field-invalid { border-color: var(--red) !important; }

/* ---------- 杂项 ---------- */
.two-col { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 48px; align-items: center; }
@media (max-width: 860px) { .two-col { grid-template-columns: minmax(0, 1fr); gap: 28px; } }
.check-list { list-style: none; padding: 0; }
.check-list li { padding-left: 28px; position: relative; margin-bottom: 10px; color: var(--ink-2); }
.check-list li::before { content: ""; position: absolute; left: 2px; top: 8px; width: 14px; height: 8px; border-left: 2.5px solid var(--blue-600); border-bottom: 2.5px solid var(--blue-600); transform: rotate(-45deg); }
.x-list { list-style: none; padding: 0; }
.x-list li { padding-left: 28px; position: relative; margin-bottom: 10px; color: var(--ink-2); }
.x-list li::before { content: "×"; position: absolute; left: 3px; top: -1px; color: var(--red); font-weight: 800; font-size: 18px; }
.center { text-align: center; }
.mt-0 { margin-top: 0; } .mt-1 { margin-top: 12px; } .mt-2 { margin-top: 24px; } .mt-3 { margin-top: 40px; }
.mb-0 { margin-bottom: 0; }
.notfound { padding: 120px 0; text-align: center; }
.nowrap { white-space: nowrap; }

/* ---------- 资讯与文章 ---------- */
a.filter-btn { display: inline-block; text-decoration: none; }
.filter-btn[aria-current="page"] { background: var(--blue-800); border-color: var(--blue-800); color: #fff; }
.news-list { border-top: 1px solid var(--line); }
.news-item { display: grid; grid-template-columns: 112px minmax(0, 1fr); gap: 16px; padding: 16px 4px; border-bottom: 1px solid var(--line); color: var(--ink); }
.news-item:hover { background: var(--blue-50); text-decoration: none; }
.news-date { color: var(--muted); font-size: 14px; font-variant-numeric: tabular-nums; padding-top: 2px; }
.news-body strong { color: var(--blue-900); font-weight: 700; margin: 0 6px; }
.news-body .news-source { display: inline; margin-left: 4px; }
@media (max-width: 560px) { .news-item { grid-template-columns: minmax(0, 1fr); gap: 4px; } }
.news-feed { display: grid; gap: 0; }
.news-card { padding: 24px 0; border-bottom: 1px solid var(--line); }
.news-card h2 { font-size: 20px; margin: 10px 0 8px; }
.news-card h2 a { color: var(--blue-900); }
.news-card p { color: var(--ink-2); margin-bottom: 8px; }
.news-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }
.news-source { font-size: 13px; color: var(--muted); }
.article-card { padding-top: 0; overflow: hidden; }
.article-card .tags { margin-top: 22px; }
.article-cover { display: block; width: calc(100% + 52px); max-width: none; margin: 0 -26px; aspect-ratio: 1200 / 630; object-fit: cover; }
.article-hero-img { width: 100%; border-radius: var(--radius); margin-bottom: 28px; }
.article-body img { border-radius: var(--radius-sm); }
.article-body blockquote { margin: 1.2em 0; padding: 4px 0 4px 18px; border-left: 4px solid var(--blue-400); color: var(--ink-2); }
.article-body pre { background: var(--bg-soft); padding: 14px 16px; border-radius: var(--radius-sm); overflow-x: auto; }
.article-body .table-wrap { margin: 1.2em 0; }
.pagination { display: flex; align-items: center; justify-content: center; gap: 16px; margin-top: 32px; }
.callout p:last-child { margin-bottom: 0; }
img.avatar { display: block; object-fit: cover; background: var(--blue-100); border: 3px solid #fff; box-shadow: 0 0 0 1px var(--line); }