/* ==========================================================================
   观客云 · 品牌视觉层 v6
   观客云橙 × 墨蓝 × 暖白：有产品感、有光影、有色彩，不做模板化性冷淡风
   ========================================================================== */
:root {
  --ink: #121b2d;
  --ink-2: #27364d;
  --muted: #697588;
  --muted-2: #98a1af;
  --navy: #0b1324;
  --navy-2: #142139;
  --brand: #f16a32;
  --brand-2: #d9511d;
  --brand-soft: #fff1e9;
  --gold: #f16a32;
  --gold-soft: #fff1e9;
  --blue: #3b76f6;
  --teal: #16a394;
  --bone: #f7f5f2;
  --bone-2: #efebe5;
  --line: #e9e5df;
  --line-strong: #dcd6cd;
  --bg: #ffffff;
  --soft: #faf8f6;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 10px rgba(17, 27, 45, .04);
  --shadow-md: 0 20px 50px rgba(17, 27, 45, .10);
  --wrap: 1180px;
}

/* ---------- 基础 ---------- */
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, "Helvetica Neue", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", system-ui, sans-serif;
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body :where(p) { color: var(--muted); }
a { color: inherit; text-decoration: none; transition: color .2s ease, border-color .2s ease, background-color .2s ease, transform .2s ease, box-shadow .2s ease; }
img { max-width: 100%; height: auto; }
.wrap { width: min(var(--wrap), calc(100% - 64px)); margin-inline: auto; }
.skip { position: absolute; left: -9999px; top: 8px; z-index: 100; }
.skip:focus { left: 16px; padding: 10px 16px; background: #fff; border: 1px solid var(--line-strong); }

/* ---------- 头部 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: rgba(11, 19, 36, .96);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  color: #fff;
  backdrop-filter: blur(18px);
}
.nav-row { height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: flex; align-items: center; gap: 11px; color: #fff; font-size: 18px; font-weight: 700; letter-spacing: -.02em; line-height: 1.15; }
.brand-mark { width: 32px; height: 32px; }
.brand small { display: block; margin-top: 5px; color: rgba(255, 255, 255, .42); font-size: 7.5px; font-weight: 500; letter-spacing: .2em; }
.nav-links { display: flex; align-items: center; gap: clamp(10px, 1.5vw, 26px); font-size: 13px; font-weight: 500; }
.nav-links > a, .nav-menu > summary { color: rgba(255, 255, 255, .72); white-space: nowrap; }
.nav-links > a:hover, .nav-menu > summary:hover, .nav-links > a.active, .nav-menu.active > summary { color: #fff; }
.nav-links > a.active:after { content: ""; display: block; width: 16px; height: 2px; margin: 5px auto -7px; border-radius: 2px; background: var(--brand); }
.nav-menu > summary:after { color: var(--brand); }
.nav-panel {
  left: -16px;
  top: calc(100% + 14px);
  min-width: 210px;
  padding: 8px;
  gap: 0;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: 14px;
  background: #fff;
  box-shadow: 0 24px 60px rgba(11, 19, 36, .18);
}
.nav-panel a { padding: 11px 13px; border-radius: 8px; color: var(--ink-2); font-size: 13px; letter-spacing: 0; }
.nav-panel a:hover { background: var(--brand-soft); color: var(--brand-2); }
.nav-cta {
  padding: 11px 20px;
  border: 0;
  border-radius: 10px;
  background: linear-gradient(135deg, #ff8248, var(--brand));
  color: #fff;
  font-size: 12.5px;
  font-weight: 650;
  box-shadow: 0 8px 22px rgba(241, 106, 50, .28);
}
.nav-cta:hover { background: linear-gradient(135deg, #ff935f, #f77a42); color: #fff; transform: translateY(-1px); box-shadow: 0 12px 26px rgba(241, 106, 50, .36); }
.nav-cta svg { width: 14px; height: 14px; }
.menu-toggle { display: none; border: 1px solid rgba(255, 255, 255, .2); border-radius: 9px; padding: 8px; background: transparent; color: #fff; }

/* ---------- 按钮 ---------- */
.btn, .btn-light {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 50px;
  padding: 0 27px;
  border-radius: 11px;
  border: 1px solid transparent;
  font-size: 14px;
  font-weight: 650;
  cursor: pointer;
  transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}
.btn { background: linear-gradient(135deg, #ff8045, var(--brand)); color: #fff; box-shadow: 0 12px 28px rgba(241, 106, 50, .24); }
.btn:hover { background: linear-gradient(135deg, #ff925d, #f5773f); color: #fff; transform: translateY(-2px); box-shadow: 0 16px 34px rgba(241, 106, 50, .32); }
.btn-light { background: #fff; border-color: var(--line-strong); color: var(--ink); box-shadow: var(--shadow-sm); }
.btn-light:hover { border-color: var(--brand); color: var(--brand-2); background: #fff; transform: translateY(-2px); }
.text-link { display: inline-flex; align-items: center; gap: 8px; color: var(--brand-2); font-size: 13px; font-weight: 650; }
.text-link b { font-size: 16px; color: var(--brand); transition: transform .2s ease; }
.text-link:hover { color: var(--brand); }
.text-link:hover b { transform: translateX(4px); }

/* ---------- 页面头图：墨蓝产品氛围 ---------- */
.page-hero {
  position: relative;
  overflow: hidden;
  padding: 30px 0 96px;
  background:
    radial-gradient(circle at 84% 18%, rgba(241, 106, 50, .20), transparent 32%),
    radial-gradient(circle at 12% 100%, rgba(59, 118, 246, .13), transparent 38%),
    linear-gradient(125deg, #0b1324, #111e35 62%, #17243d);
  border-bottom: 0;
  color: #fff;
}
.page-hero:before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .22;
  background-image: linear-gradient(rgba(255,255,255,.055) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: linear-gradient(to right, transparent, #000 70%);
  pointer-events: none;
}
.page-hero:after {
  content: "";
  position: absolute;
  right: 8%;
  top: 20%;
  width: 280px;
  height: 280px;
  border: 1px solid rgba(241, 106, 50, .22);
  border-radius: 50%;
  box-shadow: 0 0 0 52px rgba(241, 106, 50, .035), 0 0 0 104px rgba(241, 106, 50, .02);
  pointer-events: none;
}
.breadcrumbs { position: relative; z-index: 2; display: flex; align-items: center; gap: 10px; color: rgba(255,255,255,.45); font-size: 11px; letter-spacing: .06em; }
.breadcrumbs a:hover { color: #fff; }
.page-hero-copy { position: relative; z-index: 2; max-width: 850px; padding-top: 66px; }
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 22px;
  padding: 6px 12px;
  border: 1px solid rgba(241, 106, 50, .28);
  border-radius: 999px;
  background: rgba(241, 106, 50, .10);
  color: #ffab82;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .08em;
}
.kicker:before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--brand); box-shadow: 0 0 0 4px rgba(241,106,50,.14); }
.page-hero h1, .hero h1 {
  max-width: 900px;
  margin: 0;
  color: #fff;
  font-size: clamp(38px, 4.4vw, 64px);
  font-weight: 750;
  line-height: 1.14;
  letter-spacing: -.045em;
}
.page-lead, .hero-copy { max-width: 680px; margin: 25px 0 34px; color: rgba(255,255,255,.66); font-size: 16px; line-height: 1.95; }
.page-actions { display: flex; gap: 13px; flex-wrap: wrap; }
.page-hero .btn-light { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.2); color: #fff; box-shadow: none; }
.page-hero .btn-light:hover { background: rgba(255,255,255,.13); border-color: rgba(255,255,255,.4); color: #fff; }
.hero-orbit { display: none; }

/* ---------- 板块 ---------- */
.content-section { position: relative; padding: 96px 0; }
.content-section:nth-of-type(even) { background: var(--soft); }
.content-section.section-tint { background: var(--soft); }
.section-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 42px;
}
.section-heading .kicker, .section-head .kicker, .directory-heading .kicker {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--brand-2);
  font-size: 11px;
  letter-spacing: .12em;
  text-transform: uppercase;
}
.section-heading .kicker:before, .section-head .kicker:before, .directory-heading .kicker:before { box-shadow: none; }
.section-heading h2, .directory-heading h2 {
  max-width: 780px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(29px, 3vw, 42px);
  font-weight: 750;
  line-height: 1.24;
  letter-spacing: -.04em;
}
.section-heading .kicker { margin-bottom: 15px; }
.section-head, .section-head h2 { color: var(--ink); }
.section-head h2 { margin: 0; font-size: clamp(29px, 3vw, 42px); font-weight: 750; line-height: 1.24; letter-spacing: -.04em; }
.section-head p:last-child { color: var(--muted); font-size: 15px; }
.section { padding: 96px 0; }
.section-white { background: var(--soft); }

/* ---------- 卡片：柔和、有色彩、有 hover 生命感 ---------- */
.portal-card, .article-card, .case-card, .detail-panel, .feature-card, .capability, .credential-grid > div,
.pricing-grid article, .contact-large, .topic-intro, .timeline-item, .journey-card, .contact-item, .faq-item {
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--shadow-sm);
  border-radius: var(--radius);
}
.portal-card, .article-card, .case-card, .feature-card {
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.portal-card:hover, .article-card:hover, .case-card:hover, .feature-card:hover {
  border-color: rgba(241, 106, 50, .38);
  background: #fff;
  transform: translateY(-5px);
  box-shadow: 0 22px 48px rgba(25, 35, 52, .10);
}
.portal-card { position: relative; overflow: hidden; min-height: 230px; padding: 32px 30px; background: #fff; }
.portal-card:before { content: ""; position: absolute; left: 0; top: 0; width: 100%; height: 3px; background: linear-gradient(90deg, var(--brand), #ffb18a); transform: scaleX(0); transform-origin: left; transition: transform .25s ease; }
.portal-card:hover:before { transform: scaleX(1); }
.portal-card-kicker { color: var(--brand-2); font-size: 10.5px; font-weight: 650; letter-spacing: .12em; text-transform: uppercase; }
.portal-card h3 { margin: 17px 0 11px; color: var(--ink); font-size: 20px; font-weight: 700; letter-spacing: -.02em; line-height: 1.45; }
.portal-card p { color: var(--muted); font-size: 14px; line-height: 1.9; }
.portal-card-arrow { margin-top: 20px; padding-top: 17px; border-top: 1px solid var(--line); color: var(--brand-2); font-size: 12px; font-weight: 650; }
.article-card { position: relative; min-height: 240px; padding: 30px 28px; }
.article-meta { display: flex; align-items: center; gap: 12px; color: var(--muted-2); font-size: 11px; font-weight: 500; }
.article-meta span { padding: 4px 9px; border-radius: 999px; background: var(--brand-soft); color: var(--brand-2); font-weight: 650; }
.article-card h3 { margin: 18px 0 11px; color: var(--ink); font-size: 18px; font-weight: 700; line-height: 1.55; letter-spacing: -.02em; }
.article-card h3 a { color: var(--ink); }
.article-card h3 a:hover { color: var(--brand-2); }
.article-card p { color: var(--muted); font-size: 14px; line-height: 1.9; }
.article-card .text-link { margin-top: 8px; }

/* ---------- 详情面板 / 标注 / 标签 ---------- */
.detail-panel { padding: 32px; }
.detail-panel-warm { background: var(--soft); }
.detail-panel h3 { color: var(--ink); font-size: 19px; font-weight: 700; }
.callout {
  position: relative;
  overflow: hidden;
  border: 0;
  border-radius: 22px;
  background:
    radial-gradient(circle at 88% 10%, rgba(241,106,50,.22), transparent 35%),
    linear-gradient(120deg, #0c1527, #16243d);
  box-shadow: 0 24px 55px rgba(11,19,36,.16);
  padding: 48px;
  color: #fff;
}
.callout h2 { color: #fff; font-size: clamp(26px, 2.6vw, 36px); font-weight: 750; letter-spacing: -.035em; }
.callout p { color: rgba(255,255,255,.66); }
.journey-card { background: #fff; border-color: var(--line); }
.journey-card span { color: var(--brand); font-size: 11px; letter-spacing: .12em; }
.journey-card b { color: var(--ink); font-weight: 700; }
.tag-cloud span { border-color: var(--line); background: #fff; color: var(--muted); border-radius: 999px; font-size: 12px; }
.tag-cloud span:hover { border-color: var(--brand); color: var(--brand-2); background: var(--brand-soft); }
.timeline-item { border-top: 3px solid var(--brand); border-radius: 0 0 14px 14px; }
.timeline-item b { color: var(--brand-2); font-size: 12px; letter-spacing: .1em; }

/* ---------- 文章正文 ---------- */
.article-reading { max-width: 720px; }
.article-reading > section { margin: 42px 0; }
.article-reading h2 { position: relative; margin: 0 0 18px; padding-left: 18px; color: var(--ink); font-size: 25px; font-weight: 750; line-height: 1.45; letter-spacing: -.025em; }
.article-reading h2:before { content: ""; position: absolute; left: 0; top: .28em; width: 4px; height: 1em; border-radius: 4px; background: linear-gradient(var(--brand), #ffac83); }
.article-reading h3 { margin: 32px 0 12px; color: var(--ink); font-size: 19px; font-weight: 700; }
.article-reading p { margin: 0 0 19px; color: #4c586a; font-size: 16px; line-height: 2.05; }
.article-reading ul, .article-reading ol { margin: 0 0 22px; padding-left: 22px; color: #4c586a; }
.article-reading li { margin: 9px 0; font-size: 15.5px; line-height: 1.95; }
.article-reading li::marker { color: var(--brand); }
.article-reading blockquote { margin: 28px 0; padding: 20px 24px; border: 0; border-left: 4px solid var(--brand); border-radius: 0 12px 12px 0; background: var(--brand-soft); color: var(--ink-2); }
.article-reading table { width: 100%; margin: 26px 0; border-collapse: separate; border-spacing: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; font-size: 14px; }
.article-reading th, .article-reading td { padding: 13px 15px; border-bottom: 1px solid var(--line); text-align: left; }
.article-reading th { background: var(--soft); color: var(--ink); font-weight: 650; }
.article-reading img { border-radius: 14px; box-shadow: var(--shadow-md); }
.article-summary { color: var(--ink-2) !important; font-size: 18px !important; line-height: 1.95 !important; font-weight: 500; }
.article-disclaimer { margin: 34px 0; padding: 18px 20px; border: 1px solid #f2ded2; border-radius: 12px; background: #fff8f4; color: var(--muted); font-size: 12.5px; line-height: 1.9; }

/* ---------- FAQ ---------- */
.faq-grid { gap: 56px; }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border: 0; border-bottom: 1px solid var(--line); border-radius: 0; box-shadow: none; }
.faq-item summary { color: var(--ink); font-size: 16px; font-weight: 600; padding: 23px 52px 23px 0; letter-spacing: -.01em; }
.faq-item summary:after { background: var(--brand-soft); border: 0; border-radius: 50%; color: var(--brand-2); }
.faq-answer { color: var(--muted); font-size: 14px; line-height: 1.95; }
.faq-tools input { border: 1px solid var(--line-strong); border-radius: 11px; background: #fff; }
.faq-tools input:focus { border-color: var(--brand); outline: 3px solid rgba(241,106,50,.10); }
.filter-chip { border: 1px solid var(--line); border-radius: 999px; background: #fff; color: var(--muted); font-size: 12px; }
.filter-chip:hover { border-color: var(--brand); color: var(--brand-2); }
.filter-chip.active { border-color: var(--brand); background: var(--brand); color: #fff; box-shadow: 0 7px 18px rgba(241,106,50,.20); }
.filter-chip.active small { color: rgba(255, 255, 255, .72); }

/* ---------- 联系 / 目录 / 页脚 ---------- */
.contact-panel { border: 0; border-radius: 22px; background: var(--soft); box-shadow: none; }
.contact-panel:after { content: none; }
.contact-copy h2 { color: var(--ink); font-weight: 750; letter-spacing: -.03em; }
.contact-item { border-color: var(--line); background: #fff; border-radius: 14px; }
.contact-item small { color: var(--muted-2); font-size: 10.5px; letter-spacing: .1em; text-transform: uppercase; }
.contact-item a:hover { color: var(--brand-2); }
.contact-large { border-radius: 16px; }
.contact-large b { color: var(--ink); font-weight: 700; }
.contact-large span { color: var(--brand); }
.site-directory { background: var(--soft); border-top: 1px solid var(--line); }
.directory-links a { border: 1px solid var(--line); border-radius: 12px; background: #fff; box-shadow: var(--shadow-sm); }
.directory-links a:hover { border-color: var(--brand); color: var(--brand-2); transform: translateY(-2px); }
.directory-links b { color: var(--brand); }
.fine-print { color: var(--muted-2); font-size: 11px; }
.site-footer { position: relative; background: var(--navy); color: #fff; padding: 76px 0 28px; }
.site-footer:before { content: ""; position: absolute; left: 0; right: 0; top: 0; height: 2px; background: linear-gradient(90deg, var(--brand), rgba(241,106,50,0) 60%); }
.footer-top { border-bottom: 1px solid rgba(255, 255, 255, .09); padding-bottom: 40px; }
.footer-tagline { color: rgba(255, 255, 255, .52); }
.footer-columns > div { color: rgba(255, 255, 255, .56); }
.footer-columns b { color: #fff; font-weight: 600; }
.footer-columns a:hover, .footer-links a:hover { color: #ff9a6c; }
.footer-bottom { color: rgba(255, 255, 255, .38); font-size: 11px; }
.footer-legal a { color: rgba(255, 255, 255, .48); }
.footer-note { color: rgba(255, 255, 255, .3); }

/* ---------- 旧版组件统一 ---------- */
.accent { color: var(--brand-2); }
.accent:after { background: var(--brand-soft); }
.eyebrow { background: var(--brand-soft); color: var(--brand-2); border: 0; border-radius: 999px; letter-spacing: .08em; font-size: 11px; }
.eyebrow span { background: var(--brand); }
.quick-strip { background: var(--soft); border-block-color: var(--line); }
.quick-label, .quick-item { color: var(--muted); }
.quick-item svg { color: var(--brand); }
.feature-lead { border: 1px solid var(--line); background: #fff; border-radius: 18px; box-shadow: var(--shadow-sm); }
.feature-lead h3, .feature-card h3, .capability h3, .industry-card h3 { color: var(--ink); font-weight: 700; letter-spacing: -.02em; }
.feature-mark { background: linear-gradient(135deg, #ff8750, var(--brand)); box-shadow: 0 10px 22px rgba(241,106,50,.22); border-radius: 12px; color: #fff; }
.icon-tile { background: var(--brand-soft); border: 0; color: var(--brand-2); border-radius: 12px; }
.event-pill { background: #fff; border: 1px solid var(--line); box-shadow: var(--shadow-sm); border-radius: 12px; }
.event-pill svg, .flow-arrow { color: var(--brand); }
.dark-panel { background: radial-gradient(circle at 90% 0, rgba(241,106,50,.18), transparent 35%), var(--navy); }
.dark-panel:before { border-color: rgba(241, 106, 50, .22); box-shadow: 0 0 0 42px rgba(241, 106, 50, .04), 0 0 0 85px rgba(241, 106, 50, .02); }
.panel-label { color: #ffab82; letter-spacing: .12em; }
.account-card { border: 1px solid rgba(255, 255, 255, .12); background: rgba(255,255,255,.035); border-radius: 14px; }
.account-card:first-child { border-color: rgba(241, 106, 50, .4); background: rgba(241, 106, 50, .09); }
.account-card svg { color: #ff9a6c; }
.check-list svg, .check-list li:before { color: var(--brand); }
.industry-card { border: 1px solid var(--line); background: #fff; border-radius: 16px; }
.industry-illustration { background: linear-gradient(135deg, #17243d, #0b1324); box-shadow: none; border-radius: 12px; }
.compliance-banner { border: 1px solid var(--line); background: var(--soft); border-radius: 16px; }
.compliance-symbol { background: var(--brand-soft); border: 0; color: var(--brand-2); border-radius: 12px; }

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .nav-links { gap: 13px; font-size: 12px; }
  .page-hero:after { display: none; }
}
@media (max-width: 860px) {
  .wrap { width: calc(100% - 40px); }
  .page-hero { padding: 20px 0 68px; }
  .page-hero-copy { padding-top: 44px; }
  .page-lead, .hero-copy { font-size: 15px; }
  .content-section, .section { padding: 68px 0; }
  .section-heading { flex-direction: column; align-items: flex-start; gap: 14px; margin-bottom: 30px; }
  .callout { padding: 30px 24px; }
  .nav-row { height: 66px; }
  .menu-toggle { display: inline-flex; }
  .nav-links {
    display: none;
    position: absolute;
    left: 0;
    right: 0;
    top: 66px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 8px 20px 18px;
    background: var(--navy);
    border-bottom: 1px solid rgba(255, 255, 255, .1);
  }
  .nav-links.open { display: flex; }
  .nav-links > a, .nav-menu > summary { padding: 14px 0; border-bottom: 1px solid rgba(255, 255, 255, .09); color: rgba(255, 255, 255, .8); }
  .nav-links > a.active:after { display: none; }
  .nav-menu > summary { padding-left: 0; }
  .nav-panel { position: static; display: grid; grid-template-columns: 1fr 1fr; gap: 0; margin: 4px 0 12px; padding: 4px 0; border: 0; border-radius: 0; background: transparent; box-shadow: none; }
  .nav-panel a { color: rgba(255, 255, 255, .6); }
  .nav-panel a:hover { background: transparent; color: #fff; }
  .portal-grid, .article-grid, .case-grid, .detail-grid, .contact-page-grid, .credential-grid, .pricing-grid { grid-template-columns: 1fr; }
  .journey-row, .timeline { grid-template-columns: 1fr 1fr; }
  .footer-columns { grid-template-columns: 1fr 1fr; }
  .article-reading { max-width: 100%; }
}
@media (max-width: 520px) {
  .page-hero h1, .hero h1 { font-size: 34px; }
  .page-actions .btn { flex: 1 1 auto; padding-inline: 16px; }
  .journey-row, .timeline, .directory-links, .footer-columns { grid-template-columns: 1fr; }
  .article-reading h2 { font-size: 22px; }
  .article-reading p, .article-reading li { font-size: 15.5px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *:before, *:after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}