/* 云翼加 2026：深海银灰企业品牌系统 */
:root {
  --brand-ink: #06111e;
  --brand-ink-2: #0a1a2a;
  --brand-ink-3: #102438;
  --brand-paper: #e9eef0;
  --brand-paper-2: #f5f7f7;
  --brand-silver: #b8c7ce;
  --brand-silver-bright: #e9f0f2;
  --brand-ice: #9ac8d5;
  --brand-ice-soft: #c7dbe1;
  --brand-text: #102031;
  --brand-muted: #5c6a75;
  --brand-line: rgba(195, 211, 219, 0.2);
  --brand-line-dark: rgba(13, 33, 51, 0.17);
  --brand-shell: min(1280px, calc(100vw - 96px));
  --brand-display: "PingFang SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
}

html {
  scroll-behavior: smooth;
  background: var(--brand-ink);
}

body {
  background: var(--brand-paper);
  color: var(--brand-text);
  font-family: var(--brand-display);
  font-size: 16px;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: 0.045;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.44'/%3E%3C/svg%3E");
  mix-blend-mode: soft-light;
}

a,
button,
input,
select,
textarea,
summary {
  -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--brand-ice);
  outline-offset: 4px;
}

.section-shell {
  width: var(--brand-shell);
  max-width: none;
}

.reveal,
.reveal.is-visible {
  opacity: 1 !important;
  transform: none !important;
}

.eyebrow,
.section-index {
  font-family: var(--brand-display);
  font-size: 13px;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.14em;
  text-transform: none;
}

.site-header {
  top: 22px;
  width: var(--brand-shell);
  min-height: 76px;
  padding: 0 20px 0 24px;
  border: 1px solid rgba(200, 215, 223, 0.19);
  border-radius: 4px;
  background: rgba(4, 14, 25, 0.82);
  color: var(--brand-silver-bright);
  box-shadow: 0 16px 54px rgba(0, 5, 12, 0.18);
  backdrop-filter: blur(18px) saturate(110%);
}

.site-header.is-scrolled {
  top: 12px;
  background: rgba(4, 14, 25, 0.94);
  border-color: rgba(200, 215, 223, 0.28);
}

.brand {
  gap: 10px;
  color: inherit;
}

.brand-mark {
  width: 36px;
  height: 32px;
  gap: 4px;
  align-items: end;
}

.brand-mark i {
  width: 7px;
  border-radius: 2px 2px 1px 1px;
  background: linear-gradient(180deg, var(--brand-silver-bright), #8ea7b4) !important;
}

.brand-mark i:nth-child(1) { height: 15px; opacity: 0.78; }
.brand-mark i:nth-child(2) { height: 23px; }
.brand-mark i:nth-child(3) { height: 31px; opacity: 0.9; }

.brand-name {
  font-size: 22px;
  font-weight: 650;
  letter-spacing: -0.03em;
}

.brand-suffix {
  color: var(--brand-silver) !important;
  font-size: 14px;
  font-weight: 500;
}

.desktop-nav {
  gap: clamp(20px, 2.4vw, 38px);
}

.desktop-nav a {
  position: relative;
  color: rgba(232, 239, 242, 0.69);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.desktop-nav a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -10px;
  left: 0;
  height: 1px;
  background: var(--brand-ice);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 180ms ease;
}

.desktop-nav a:hover,
.desktop-nav a[aria-current="page"] {
  color: #fff !important;
}

.desktop-nav a:hover::after,
.desktop-nav a[aria-current="page"]::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  min-height: 46px;
  padding: 0 18px;
  border: 1px solid var(--brand-ice-soft);
  border-radius: 2px;
  background: linear-gradient(135deg, #e8eef0, #aebfc7);
  color: var(--brand-ink);
  font-size: 14px;
  font-weight: 650;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.75);
}

.nav-cta:hover {
  background: #f7fafb;
  transform: translateY(-1px);
}

.button {
  min-height: 54px;
  padding: 0 22px;
  border-radius: 2px;
  font-family: var(--brand-display);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button:hover { transform: translateY(-2px); }

.button-primary,
.editorial-page .button-primary {
  border: 1px solid var(--brand-silver-bright);
  background: linear-gradient(135deg, #f3f6f7 0%, #aebfc7 100%) !important;
  color: var(--brand-ink) !important;
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.88), 0 16px 42px rgba(0, 7, 15, 0.22);
}

.button-primary:hover { background: #fff !important; }

.button-ghost,
.button-light {
  border-color: rgba(222, 233, 238, 0.4);
  background: rgba(255, 255, 255, 0.02);
  color: var(--brand-silver-bright);
}

.button-ghost:hover,
.button-light:hover {
  border-color: rgba(235, 243, 246, 0.75);
  background: rgba(255, 255, 255, 0.07);
}

/* 首页首屏：经营问题与证据链 */
.hero.hero-v5 {
  position: relative;
  min-height: 900px;
  padding: 160px max(48px, calc((100vw - 1340px) / 2)) 92px;
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(460px, 0.94fr);
  gap: clamp(54px, 6vw, 96px);
  align-items: center;
  overflow: hidden;
  background:
    linear-gradient(90deg, transparent 0 66%, rgba(195, 214, 223, 0.08) 66% 66.07%, transparent 66.07%),
    radial-gradient(ellipse at 77% 45%, rgba(114, 158, 177, 0.14), transparent 38%),
    linear-gradient(126deg, #06111e 0%, #071624 52%, #0a1c2c 100%);
  color: var(--brand-silver-bright);
}

.hero.hero-v5::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.035), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 28%, rgba(0, 0, 0, 0.13));
}

.hero-v5 .hero-copy,
.decision-panel {
  position: relative;
  z-index: 1;
}

.hero-v5 .hero-copy {
  width: auto;
  max-width: 750px;
  padding: 0;
}

.hero-v5 .eyebrow {
  margin: 0 0 30px;
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--brand-silver);
}

.eyebrow-dot {
  width: 7px;
  height: 7px;
  border: 1px solid var(--brand-ice);
  border-radius: 50%;
  box-shadow: 0 0 0 4px rgba(154, 200, 213, 0.08);
}

.hero-v5 h1 {
  max-width: 760px;
  margin: 0;
  color: #f5f8f9;
  font-family: var(--brand-display);
  font-size: clamp(66px, 6.2vw, 96px);
  font-weight: 620;
  line-height: 0.99;
  letter-spacing: -0.065em;
}

.hero-v5 h1 span {
  color: var(--brand-silver);
  -webkit-text-stroke: 0;
}

.hero-v5 .hero-lead {
  max-width: 690px;
  margin: 34px 0 0;
  color: rgba(231, 239, 242, 0.73);
  font-size: 17px;
  line-height: 1.88;
}

.hero-v5 .hero-actions {
  margin-top: 36px;
  display: flex;
  gap: 12px;
}

.hero-assurances {
  margin-top: 38px;
  padding-top: 22px;
  border-top: 1px solid var(--brand-line);
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 22px;
}

.hero-assurances span {
  position: relative;
  padding-left: 16px;
  color: rgba(226, 236, 240, 0.62);
  font-size: 13px;
}

.hero-assurances span::before {
  content: "";
  position: absolute;
  top: 0.74em;
  left: 0;
  width: 7px;
  height: 1px;
  background: var(--brand-ice);
}

.decision-panel {
  width: min(100%, 548px);
  min-height: 614px;
  justify-self: end;
  padding: 26px 28px 24px;
  border: 1px solid rgba(200, 217, 225, 0.28);
  border-radius: 4px;
  overflow: hidden;
  background: linear-gradient(145deg, rgba(19, 42, 60, 0.88), rgba(5, 18, 30, 0.8));
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.08), 0 38px 90px rgba(0, 6, 13, 0.3);
}

.decision-panel::before {
  content: "";
  position: absolute;
  top: -190px;
  right: -190px;
  width: 410px;
  height: 410px;
  border: 1px solid rgba(188, 213, 223, 0.16);
  border-radius: 50%;
  box-shadow: 0 0 0 48px rgba(188, 213, 223, 0.018), 0 0 0 96px rgba(188, 213, 223, 0.012);
}

.decision-panel-top,
.decision-panel-foot {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(223, 234, 239, 0.55);
  font-size: 12px;
  letter-spacing: 0.07em;
}

.decision-panel-top b {
  color: var(--brand-ice-soft);
  font-size: 12px;
  font-weight: 600;
}

.decision-question {
  position: relative;
  margin: 58px 0 0;
  padding: 0 0 34px 30px;
  border-left: 1px solid rgba(198, 216, 225, 0.38);
}

.decision-question::before {
  content: "";
  position: absolute;
  top: 4px;
  left: -4px;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--brand-silver-bright);
}

.decision-question small,
.answer-kicker,
.geo-query small {
  color: var(--brand-ice);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.decision-question p {
  margin: 15px 0 0;
  color: #f5f8f9;
  font-size: clamp(30px, 2.5vw, 39px);
  font-weight: 570;
  line-height: 1.25;
  letter-spacing: -0.04em;
}

.decision-sources {
  margin: 0 0 28px 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.decision-sources span {
  padding: 7px 10px;
  border: 1px solid rgba(199, 217, 225, 0.2);
  border-radius: 999px;
  color: rgba(230, 239, 242, 0.65);
  font-size: 12px;
}

.decision-answer {
  position: relative;
  padding: 27px 28px 25px;
  border: 1px solid rgba(201, 219, 227, 0.31);
  border-radius: 3px;
  background: linear-gradient(135deg, rgba(233, 240, 243, 0.12), rgba(233, 240, 243, 0.035));
}

.answer-kicker {
  display: flex;
  align-items: center;
  gap: 9px;
}

.answer-kicker i {
  width: 20px;
  height: 1px;
  background: var(--brand-ice);
}

.decision-answer strong {
  display: block;
  margin-top: 12px;
  color: var(--brand-silver-bright);
  font-size: 25px;
  font-weight: 580;
  letter-spacing: -0.025em;
}

.decision-answer p {
  margin: 11px 0 0;
  color: rgba(227, 237, 241, 0.67);
  font-size: 14px;
  line-height: 1.75;
}

.decision-panel-foot {
  margin-top: 24px;
  justify-content: flex-start;
  gap: 15px;
  flex-wrap: wrap;
}

.decision-panel-foot span:not(:last-child)::after {
  content: "/";
  margin-left: 15px;
  color: rgba(223, 234, 239, 0.22);
}

.hero-signature {
  position: absolute;
  right: max(48px, calc((100vw - 1340px) / 2));
  bottom: 28px;
  color: rgba(223, 234, 239, 0.24);
  font-size: 11px;
  letter-spacing: 0.18em;
}

.answer-strip {
  background: linear-gradient(105deg, #dfe7ea, #b8c8cf);
  color: var(--brand-ink);
}

.answer-grid {
  min-height: 250px;
  padding: 48px 0;
  grid-template-columns: 140px minmax(0, 1fr) 220px;
  gap: 42px;
}

.answer-grid .section-index {
  margin: 6px 0 0;
  color: rgba(6, 17, 30, 0.54);
}

.answer-grid h2 {
  margin: 0 0 14px;
  color: var(--brand-ink);
  font-size: clamp(29px, 2.5vw, 40px);
  font-weight: 610;
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.answer-grid p {
  margin: 0;
  color: rgba(6, 17, 30, 0.72);
  font-size: 16px;
  line-height: 1.8;
}

.text-link {
  min-height: 52px;
  padding: 0 0 8px;
  border-bottom: 1px solid rgba(6, 17, 30, 0.45);
  align-self: end;
  color: var(--brand-ink);
  font-size: 14px;
  font-weight: 600;
}

/* 首页内容节奏 */
.section,
.content-section {
  padding: 118px 0;
}

.section-dark,
.section-ink,
.content-section-dark {
  background: var(--brand-ink);
  color: var(--brand-silver-bright);
}

.section-paper,
.content-section {
  background: var(--brand-paper);
  color: var(--brand-text);
}

.content-section-alt {
  background: #dfe5e8;
}

.section-heading,
.content-heading {
  margin-bottom: 58px;
  grid-template-columns: minmax(0, 1.12fr) minmax(320px, 0.72fr);
  gap: 80px;
  align-items: end;
}

.section-heading > div,
.content-heading > div {
  min-width: 0;
}

.section-heading h2,
.content-heading h2 {
  max-width: 850px;
  margin: 12px 0 0;
  font-family: var(--brand-display);
  font-size: clamp(46px, 4.8vw, 70px);
  font-weight: 610;
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.section-heading > p,
.content-heading > div > p,
.content-heading > p {
  color: rgba(229, 237, 240, 0.66);
  font-size: 16px;
  line-height: 1.85;
}

.heading-dark > p,
.content-section:not(.content-section-dark) .content-heading > div > p,
.content-section:not(.content-section-dark) .content-heading > p {
  color: var(--brand-muted);
}

.section-dark .section-index,
.section-ink .section-index,
.content-section-dark .section-index {
  color: var(--brand-ice);
}

.section-paper .section-index,
.content-section:not(.content-section-dark) .section-index {
  color: #587080;
}

.focus-grid {
  display: grid;
  grid-template-columns: 1.18fr 1fr 1fr;
  border-top: 1px solid var(--brand-line);
  border-left: 1px solid var(--brand-line);
}

.focus-card {
  min-height: 540px;
  padding: 29px 30px 32px;
  border-right: 1px solid var(--brand-line);
  border-bottom: 1px solid var(--brand-line);
  display: grid;
  grid-template-columns: 44px 1fr;
  gap: 18px;
  transition: background 180ms ease;
}

.focus-card:hover {
  background: rgba(255, 255, 255, 0.035);
}

.focus-card-main {
  background: linear-gradient(145deg, rgba(155, 199, 213, 0.09), rgba(255, 255, 255, 0.015));
}

.focus-card-accent {
  background: linear-gradient(180deg, rgba(185, 206, 215, 0.07), transparent 65%);
}

.focus-no {
  color: rgba(231, 239, 242, 0.36);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.focus-body {
  display: flex;
  flex-direction: column;
}

.focus-body small {
  color: var(--brand-ice);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.focus-body h3 {
  margin: 68px 0 22px;
  color: #f2f6f7;
  font-size: clamp(27px, 2.35vw, 36px);
  font-weight: 580;
  line-height: 1.18;
  letter-spacing: -0.04em;
}

.focus-body p {
  margin: 0;
  color: rgba(228, 237, 240, 0.62);
  font-size: 15px;
  line-height: 1.8;
}

.focus-body ul {
  margin: auto 0 24px;
  padding: 24px 0 0;
  list-style: none;
}

.focus-body li {
  padding: 8px 0;
  border-top: 1px solid var(--brand-line);
  color: rgba(233, 240, 243, 0.72);
  font-size: 14px;
}

.focus-body a {
  padding-top: 15px;
  border-top: 1px solid rgba(215, 229, 235, 0.34);
  display: flex;
  justify-content: space-between;
  color: var(--brand-silver-bright);
  font-size: 14px;
  font-weight: 600;
}

.foundation-layout {
  gap: 58px;
}

.foundation-map {
  min-height: 590px;
  padding: 34px;
  border: 1px solid var(--brand-line-dark);
  border-radius: 3px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.65), rgba(199, 213, 219, 0.34)),
    var(--brand-paper-2);
  box-shadow: inset 0 1px #fff;
}

.map-label {
  color: #597080;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.map-row > div,
.map-line span,
.map-output span {
  min-height: 64px;
}

.map-row span,
.map-line span,
.map-output span {
  font-size: 13px;
}

.map-engine {
  min-height: 130px;
  border-radius: 2px;
  background: linear-gradient(135deg, #0a1a2a, #122d42);
}

.map-engine small { font-size: 13px; }
.map-engine strong { font-size: 19px; }

.foundation-item {
  min-height: 178px;
  padding: 26px 0;
}

.foundation-item > span {
  color: #718c9a;
  font-size: 13px;
}

.foundation-item h3 {
  font-size: 25px;
  font-weight: 600;
}

.foundation-item p {
  color: var(--brand-muted);
  font-size: 15px;
  line-height: 1.75;
}

.proof-intro {
  margin-bottom: 58px;
  grid-template-columns: 150px 1fr 230px;
  gap: 42px;
}

.proof-intro h2 {
  max-width: 800px;
  font-size: clamp(44px, 4.7vw, 68px);
  font-weight: 610;
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.proof-link {
  min-height: 52px;
  padding-bottom: 9px;
  border-color: rgba(221, 232, 237, 0.35);
  color: var(--brand-silver-bright);
  font-size: 14px;
}

.case-stack {
  border-top: 1px solid var(--brand-line);
}

.case-row {
  min-height: 250px;
  padding: 30px 0;
  border-color: var(--brand-line);
  grid-template-columns: 54px 1.25fr 0.6fr 0.6fr 1.05fr;
  gap: 26px;
}

.case-number { font-size: 14px; color: var(--brand-ice); }
.case-title small { color: var(--brand-silver); font-size: 13px; }
.case-title h3 { margin-top: 20px; font-size: 27px; font-weight: 580; }
.case-result strong { font-size: 14px; color: var(--brand-ice-soft); }
.case-result span { font-size: 13px; color: rgba(228, 237, 240, 0.58); }
.case-row > p { color: rgba(228, 237, 240, 0.64); font-size: 15px; line-height: 1.75; }

.case-principles {
  margin-top: 34px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--brand-line);
}

.case-principles span {
  min-height: 66px;
  padding: 0 18px;
  border-right: 1px solid var(--brand-line);
  display: flex;
  align-items: center;
  color: rgba(232, 240, 243, 0.72);
  font-size: 13px;
}

.case-principles span:last-child { border-right: 0; }

.section-coral.geo-v5 {
  background: linear-gradient(115deg, #d9e3e7, #a8bdc7);
  color: var(--brand-ink);
}

.geo-layout {
  grid-template-columns: minmax(0, 0.95fr) minmax(440px, 0.75fr);
  gap: clamp(60px, 8vw, 122px);
  align-items: center;
}

.geo-copy .section-index { color: rgba(6, 17, 30, 0.58); }

.geo-copy h2 {
  margin: 17px 0 28px;
  font-size: clamp(46px, 4.6vw, 68px);
  font-weight: 610;
  line-height: 1.08;
  letter-spacing: -0.055em;
}

.geo-copy > p {
  max-width: 650px;
  color: rgba(6, 17, 30, 0.72);
  font-size: 16px;
  line-height: 1.88;
}

.button-dark {
  border: 1px solid var(--brand-ink);
  border-radius: 2px;
  background: var(--brand-ink);
  color: #fff;
}

.geo-answer {
  padding: 34px;
  border: 1px solid rgba(6, 17, 30, 0.35);
  border-radius: 3px;
  background: rgba(242, 246, 247, 0.26);
  box-shadow: inset 0 1px rgba(255, 255, 255, 0.58);
}

.geo-query {
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(6, 17, 30, 0.22);
}

.geo-query small { color: #42687b; }

.geo-query p {
  margin: 15px 0 0;
  color: var(--brand-ink);
  font-size: 30px;
  font-weight: 590;
  line-height: 1.32;
  letter-spacing: -0.035em;
}

.geo-evidence {
  padding: 18px 0;
}

.geo-evidence span {
  min-height: 50px;
  border-bottom: 1px solid rgba(6, 17, 30, 0.15);
  display: flex;
  align-items: center;
  color: rgba(6, 17, 30, 0.76);
  font-size: 14px;
}

.geo-evidence span::before {
  content: "";
  width: 16px;
  height: 1px;
  margin-right: 12px;
  background: #41697c;
}

.geo-note {
  margin: 6px 0 0;
  color: rgba(6, 17, 30, 0.56);
  font-size: 13px;
  line-height: 1.65;
}

.method-list li {
  min-height: 150px;
  padding: 28px 0;
  grid-template-columns: 76px 1fr 100px;
  border-color: var(--brand-line-dark);
}

.method-list > li > span {
  color: #678493;
  font-size: 28px;
}

.method-list h3 { font-size: 25px; font-weight: 600; }
.method-list p { color: var(--brand-muted); font-size: 15px; }
.method-list small { color: #506d7b; font-size: 13px; }

.about-section {
  background: #dfe6e9;
  color: var(--brand-text);
}

.about-layout { gap: clamp(60px, 8vw, 130px); }
.about-statement .section-index { color: #597687; }
.about-statement h2 { font-size: clamp(44px, 4.4vw, 64px); font-weight: 610; line-height: 1.08; }
.about-lead { color: var(--brand-text); font-size: 18px; line-height: 1.85; }
.about-points > div { padding: 22px 0; border-color: var(--brand-line-dark); }
.about-points strong { font-size: 15px; }
.about-points span { color: var(--brand-muted); font-size: 14px; }
.about-links a { font-size: 14px; }

.contact-section,
.page-contact {
  min-height: 650px;
  background:
    linear-gradient(90deg, transparent 0 70%, rgba(188, 209, 218, 0.09) 70% 70.07%, transparent 70.07%),
    linear-gradient(130deg, #06111e, #0b2032);
}

.contact-orbit {
  border-color: rgba(190, 213, 222, 0.16);
  box-shadow: 0 0 0 62px rgba(190, 213, 222, 0.018), 0 0 0 124px rgba(190, 213, 222, 0.01);
}

.contact-inner .section-index { color: var(--brand-ice); }
.contact-inner h2 { color: #f4f7f8; font-size: clamp(52px, 6vw, 86px); font-weight: 610; line-height: 1.01; }
.contact-inner h2 span { color: var(--brand-silver); -webkit-text-stroke: 0; }
.contact-inner > p { color: rgba(229, 238, 241, 0.68); font-size: 17px; }
.contact-meta { font-size: 14px; }

/* 内页：统一克制的编辑式首屏 */
.editorial-page,
.detail-page,
.scenario-page {
  background: var(--brand-paper);
  color: var(--brand-text);
}

.editorial-hero,
.detail-hero,
.scenario-hero {
  min-height: 700px;
  padding: 160px 0 78px;
  border-bottom: 1px solid var(--brand-line);
  overflow: hidden;
  background:
    linear-gradient(90deg, transparent 0 70%, rgba(196, 214, 223, 0.09) 70% 70.07%, transparent 70.07%),
    radial-gradient(ellipse at 78% 43%, rgba(116, 159, 177, 0.12), transparent 34%),
    linear-gradient(128deg, #06111e, #0a1c2c);
  color: var(--brand-silver-bright);
}

.editorial-grid,
.detail-grid {
  opacity: 1;
  background: linear-gradient(118deg, rgba(255, 255, 255, 0.03), transparent 25%);
  mask-image: none;
}

.editorial-grid::before,
.detail-grid::before {
  content: "";
  position: absolute;
  top: 0;
  right: 13%;
  width: 1px;
  height: 100%;
  background: linear-gradient(transparent, rgba(204, 220, 228, 0.34), transparent);
}

.editorial-grid::after,
.detail-grid::after {
  content: "Y+";
  position: absolute;
  right: 3.6%;
  bottom: 36px;
  color: transparent;
  -webkit-text-stroke: 1px rgba(210, 223, 229, 0.12);
  font-size: 112px;
  font-weight: 600;
  line-height: 0.8;
  letter-spacing: -0.08em;
}

.editorial-hero::before,
.detail-hero::before { display: none; }

.editorial-hero-inner,
.scenario-hero-grid {
  min-height: 430px;
  grid-template-columns: minmax(0, 1.14fr) minmax(390px, 0.72fr);
  gap: clamp(58px, 7vw, 112px);
  align-items: center;
}

.editorial-hero .eyebrow,
.detail-hero .eyebrow,
.scenario-hero .eyebrow {
  color: var(--brand-ice) !important;
}

.editorial-hero h1,
.detail-hero h1,
.scenario-hero h1,
.diagnostic-heading h1 {
  max-width: 820px;
  margin: 18px 0 0;
  color: #f3f7f8;
  font-family: var(--brand-display);
  font-size: clamp(56px, 5vw, 74px);
  font-weight: 610;
  line-height: 1.04;
  letter-spacing: -0.055em;
  text-wrap: balance;
}

.editorial-hero h1 span,
.detail-hero h1 span,
.scenario-hero h1 span,
.diagnostic-heading h1 span {
  color: var(--brand-silver);
  -webkit-text-stroke: 0;
}

.editorial-summary,
.scenario-hero-note,
.diagnostic-intro {
  position: relative;
  max-width: 480px;
  padding-top: 27px;
  border-top: 1px solid rgba(204, 220, 228, 0.38);
}

.editorial-summary::before,
.scenario-hero-note::before,
.diagnostic-intro::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  width: 62px;
  height: 1px;
  background: var(--brand-silver-bright);
}

.editorial-summary > p,
.scenario-hero-note > p,
.detail-lead,
.diagnostic-intro p {
  color: rgba(231, 239, 242, 0.72);
  font-size: 16px;
  line-height: 1.88;
}

.editorial-audience { margin-top: 28px; gap: 8px; }
.editorial-audience span,
.scenario-hero-note span {
  padding: 7px 11px;
  border-color: rgba(211, 226, 232, 0.25);
  background: rgba(255, 255, 255, 0.025);
  color: rgba(232, 240, 243, 0.7);
  font-size: 12px;
  letter-spacing: 0.02em;
}

.editorial-actions { margin-top: 30px; }
.editorial-code {
  bottom: 24px;
  color: rgba(225, 235, 240, 0.3);
  font-size: 11px;
  letter-spacing: 0.11em;
}

.truth-band {
  background: linear-gradient(105deg, #dce5e8, #b6c8cf) !important;
  color: var(--brand-ink);
}

.truth-layout {
  min-height: 250px;
  padding: 50px 0;
  grid-template-columns: 150px 1fr;
  gap: 46px;
}

.truth-band .section-index { color: rgba(6, 17, 30, 0.55); }
.truth-answer h2 { font-size: clamp(29px, 2.8vw, 40px); font-weight: 610; }
.truth-answer p { color: rgba(6, 17, 30, 0.72); font-size: 16px; line-height: 1.85; }

.capability-grid,
.edge-grid,
.result-signals {
  border-color: var(--brand-line-dark);
}

.capability-card,
.edge-card,
.signal-card,
.ecosystem-card,
.legacy-column,
.scenario-case,
.answer-card,
.detail-bento article,
.detail-bento-two article {
  border-radius: 2px;
}

.capability-card,
.edge-card {
  min-height: 380px;
  padding: 28px;
}

.capability-card small,
.edge-card small,
.signal-card small,
.legacy-column small,
.ecosystem-card > small {
  color: #587b8d;
  font-size: 12px;
}

.content-section-dark .capability-card small,
.content-section-dark .edge-card small,
.content-section-dark .signal-card small,
.content-section-dark .legacy-column small {
  color: var(--brand-ice);
}

.capability-card h3,
.edge-card h3,
.signal-card h3,
.legacy-column h3,
.ecosystem-card h3 {
  font-family: var(--brand-display);
  font-weight: 590;
  letter-spacing: -0.04em;
}

.capability-card p,
.edge-card p,
.signal-card p,
.legacy-column p,
.ecosystem-card p,
.step-rail p,
.split-answer p,
.answer-card p {
  font-size: 15px;
  line-height: 1.8;
}

.capability-card li,
.legacy-tags span,
.detail-jump a,
.diagnostic-result-actions a {
  font-size: 13px;
}

.legacy-column { min-height: 410px; padding: 30px; }
.legacy-column h3 { font-size: 37px; }
.bridge-core {
  width: 138px;
  height: 138px;
  background: linear-gradient(135deg, #dce7ea, #98b4c0) !important;
  color: var(--brand-ink);
}

.step-rail li { min-height: 140px; }
.step-rail h3 { font-weight: 600; }
.step-rail > li > span { color: #618395; }

.scenario-foundation { background: linear-gradient(105deg, #dce5e8, #b6c8cf); }
.scenario-title small,
.scenario-index small,
.scenario-structure h3,
.scenario-result h3 { font-size: 13px; }
.scenario-title h2 { font-weight: 600; }
.scenario-title > p,
.scenario-structure p,
.scenario-result p,
.privacy-case-note { font-size: 15px; line-height: 1.8; }

.app-detail-heading h2,
.detail-faq-heading h2 {
  font-weight: 610;
  letter-spacing: -0.05em;
}

.app-detail-heading > p,
.flow-table span,
.detail-bento p,
.detail-bento-two p,
.growth-loop p,
.geo-matrix p,
.faq-list p {
  font-size: 15px;
  line-height: 1.8;
}

.faq-list summary {
  min-height: 92px;
  font-size: 17px;
  font-weight: 560;
}

/* 诊断表单 */
.diagnostic-shell {
  padding: 154px 0 98px;
  background:
    linear-gradient(90deg, transparent 0 70%, rgba(196, 214, 223, 0.08) 70% 70.07%, transparent 70.07%),
    linear-gradient(128deg, #06111e, #0a1c2c);
}

.diagnostic-heading {
  grid-template-columns: minmax(0, 1.14fr) minmax(390px, 0.72fr);
  gap: clamp(58px, 7vw, 112px);
  align-items: center;
}

.diagnostic-intro strong { color: var(--brand-ice); font-size: 13px; }
.form-section { grid-template-columns: 200px 1fr; gap: 44px; }
.form-section-title span { color: var(--brand-ice); font-size: 13px; }
.form-section-title h2 { font-weight: 590; }
.field {
  min-height: 96px;
  border-radius: 3px;
  border-color: rgba(211, 226, 232, 0.24);
  background: rgba(255, 255, 255, 0.025);
}
.field > span { color: rgba(233, 240, 243, 0.58); font-size: 13px; }
.field input,
.field select,
.field textarea { color: #fff; font-size: 16px; }
.choice-card { min-height: 154px; border-radius: 3px; }
.choice-card b { font-weight: 580; }
.choice-card small { color: rgba(232, 240, 243, 0.56); font-size: 13px; }
.form-consent { color: rgba(232, 240, 243, 0.62); font-size: 13px; }
.submit-art {
  min-height: 82px;
  border-radius: 3px;
  background: linear-gradient(135deg, #eef3f4, #aac0c9);
  color: var(--brand-ink);
  font-weight: 650;
}
.diagnostic-result { border-radius: 3px; }
.diagnostic-result p { font-size: 15px; }

/* 页脚 */
.site-footer {
  background: #040d17;
  color: var(--brand-silver-bright);
}

.footer-main {
  width: var(--brand-shell);
  padding: 62px 0 46px;
  grid-template-columns: 230px 1fr 1.55fr;
  gap: 56px;
}

.footer-main > p {
  color: rgba(226, 236, 240, 0.55);
  font-size: 14px;
}

.footer-links { gap: 34px; }
.footer-links strong { color: rgba(232, 240, 243, 0.8); font-size: 13px; }
.footer-links a { color: rgba(226, 236, 240, 0.54); font-size: 13px; }
.footer-links a:hover { color: #fff; }
.footer-bottom {
  width: var(--brand-shell);
  color: rgba(226, 236, 240, 0.42);
  font-size: 12px;
}

@media (max-width: 1080px) {
  :root { --brand-shell: min(100% - 56px, 1000px); }
  .desktop-nav { gap: 18px; }
  .desktop-nav a { font-size: 13px; }
  .hero.hero-v5 {
    padding-right: 42px;
    padding-left: 42px;
    grid-template-columns: minmax(0, 1fr) minmax(400px, 0.86fr);
    gap: 42px;
  }
  .hero-v5 h1 { font-size: clamp(60px, 6.6vw, 78px); }
  .focus-grid { grid-template-columns: 1fr 1fr; }
  .focus-card-main { grid-column: 1 / -1; min-height: 440px; }
  .case-row { grid-template-columns: 48px 1.15fr 0.7fr 0.7fr; }
  .case-row > p { grid-column: 2 / -1; }
}

@media (max-width: 900px) {
  :root { --brand-shell: min(100% - 44px, 760px); }
  .site-header { min-height: 70px; }
  .desktop-nav,
  .nav-cta { display: none; }
  .menu-toggle { display: flex; background: transparent !important; }
  .hero.hero-v5 {
    min-height: auto;
    padding: 142px 34px 72px;
    grid-template-columns: 1fr;
    gap: 58px;
  }
  .hero-v5 .hero-copy { max-width: 760px; }
  .decision-panel { justify-self: stretch; width: 100%; min-height: 560px; }
  .answer-grid { grid-template-columns: 110px 1fr; }
  .answer-grid .text-link { grid-column: 2; }
  .section-heading,
  .content-heading,
  .proof-intro { grid-template-columns: 1fr; gap: 22px; }
  .section-heading > p { max-width: 680px; }
  .proof-link { max-width: 260px; }
  .foundation-layout,
  .about-layout,
  .geo-layout { grid-template-columns: 1fr; }
  .geo-answer { max-width: 680px; }
  .case-principles { grid-template-columns: 1fr 1fr; }
  .case-principles span:nth-child(2) { border-right: 0; }
  .case-principles span:nth-child(-n + 2) { border-bottom: 1px solid var(--brand-line); }
  .editorial-hero-inner,
  .scenario-hero-grid,
  .diagnostic-heading { grid-template-columns: 1fr; gap: 42px; }
  .editorial-summary,
  .scenario-hero-note,
  .diagnostic-intro { max-width: 700px; }
  .form-section { grid-template-columns: 1fr; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-links { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  :root { --brand-shell: calc(100% - 34px); }
  body { font-size: 16px; }
  body::before { opacity: 0.028; }
  .site-header,
  .site-header.is-scrolled {
    top: 10px;
    min-height: 62px;
    padding: 0 11px 0 16px;
    border-radius: 3px;
  }
  .brand-mark { width: 29px; height: 27px; gap: 3px; }
  .brand-mark i { width: 6px; }
  .brand-mark i:nth-child(1) { height: 13px; }
  .brand-mark i:nth-child(2) { height: 20px; }
  .brand-mark i:nth-child(3) { height: 27px; }
  .brand-name { font-size: 19px; }
  .brand-suffix { font-size: 12px; }
  .menu-toggle {
    width: 44px;
    height: 44px;
    border: 1px solid rgba(218, 231, 236, 0.28);
    border-radius: 2px;
  }
  .mobile-nav {
    top: 69px;
    right: 0;
    left: 0;
    padding: 14px;
    border: 1px solid rgba(206, 222, 229, 0.22);
    border-radius: 3px;
    background: rgba(4, 14, 25, 0.98);
  }
  .mobile-nav a {
    min-height: 48px;
    padding: 0 8px;
    display: flex;
    align-items: center;
    border-bottom: 1px solid var(--brand-line);
    color: rgba(235, 242, 244, 0.82);
    font-size: 15px;
  }
  .mobile-nav a:last-child {
    margin-top: 8px;
    padding: 0 14px;
    border: 1px solid var(--brand-silver);
    background: linear-gradient(135deg, #e8eef0, #aebfc7) !important;
    color: var(--brand-ink) !important;
  }
  .hero.hero-v5 {
    padding: 116px 20px 58px;
    gap: 46px;
    background:
      linear-gradient(90deg, transparent 0 84%, rgba(195, 214, 223, 0.08) 84% 84.2%, transparent 84.2%),
      radial-gradient(ellipse at 90% 34%, rgba(114, 158, 177, 0.13), transparent 34%),
      linear-gradient(126deg, #06111e 0%, #071624 58%, #0a1c2c 100%);
  }
  .hero-v5 .eyebrow { margin-bottom: 22px; font-size: 12px; letter-spacing: 0.08em; }
  .hero-v5 h1 {
    max-width: 100%;
    font-size: clamp(48px, 14.7vw, 61px);
    line-height: 1.02;
    letter-spacing: -0.06em;
  }
  .hero-v5 .hero-lead { margin-top: 26px; font-size: 16px; line-height: 1.82; }
  .hero-v5 .hero-actions { margin-top: 28px; flex-direction: column; }
  .button { width: 100%; min-height: 54px; justify-content: space-between; }
  .hero-assurances { margin-top: 28px; grid-template-columns: 1fr 1fr; gap: 8px 12px; }
  .hero-assurances span { padding-left: 13px; font-size: 12px; }
  .decision-panel { min-height: 530px; padding: 20px 18px; }
  .decision-panel::before { width: 300px; height: 300px; top: -145px; right: -165px; }
  .decision-question { margin-top: 46px; padding: 0 0 28px 20px; }
  .decision-question p { font-size: 31px; }
  .decision-sources { margin-left: 20px; }
  .decision-answer { padding: 22px 20px; }
  .decision-answer strong { font-size: 22px; }
  .decision-panel-foot { gap: 9px; }
  .decision-panel-foot span:not(:last-child)::after { margin-left: 9px; }
  .hero-signature { display: none; }
  .answer-grid {
    min-height: auto;
    padding: 38px 0;
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .answer-grid .text-link { grid-column: auto; margin-top: 8px; }
  .answer-grid h2 { font-size: 29px; }
  .section,
  .content-section { padding: 82px 0; }
  .section-heading,
  .content-heading,
  .proof-intro { margin-bottom: 38px; }
  .section-heading h2,
  .content-heading h2,
  .proof-intro h2,
  .geo-copy h2,
  .about-statement h2 {
    font-size: clamp(38px, 11.3vw, 48px);
    line-height: 1.08;
  }
  .focus-grid { grid-template-columns: 1fr; border-left: 0; }
  .focus-card,
  .focus-card-main {
    grid-column: auto;
    min-height: 500px;
    padding: 25px 20px 28px;
    border-left: 1px solid var(--brand-line);
  }
  .focus-body h3 { margin-top: 48px; font-size: 31px; }
  .foundation-map { min-height: 530px; padding: 22px 17px; }
  .map-row { grid-template-columns: 1fr 1fr; }
  .map-row > div { min-height: 70px; }
  .map-line,
  .map-output { grid-template-columns: 1fr 1fr; }
  .foundation-item { grid-template-columns: 34px 1fr 20px; gap: 11px; }
  .foundation-item h3 { font-size: 22px; }
  .case-row {
    min-height: auto;
    padding: 28px 0 32px;
    grid-template-columns: 35px 1fr;
    gap: 16px;
  }
  .case-title,
  .case-result,
  .case-row > p { grid-column: 2; }
  .case-title h3 { font-size: 25px; }
  .case-result { min-height: auto; padding: 11px 0; }
  .case-principles { grid-template-columns: 1fr; }
  .case-principles span,
  .case-principles span:nth-child(2) { border-right: 0; border-bottom: 1px solid var(--brand-line); }
  .case-principles span:last-child { border-bottom: 0; }
  .geo-layout { gap: 44px; }
  .geo-answer { padding: 25px 20px; }
  .geo-query p { font-size: 27px; }
  .method-list li { grid-template-columns: 42px 1fr; gap: 13px; }
  .method-list small { grid-column: 2; text-align: left; }
  .about-lead { font-size: 17px; }
  .about-points > div { grid-template-columns: 1fr; gap: 7px; }
  .contact-section,
  .page-contact { min-height: 630px; }
  .contact-inner h2 { font-size: clamp(43px, 12.5vw, 55px); }
  .contact-inner > p { font-size: 16px; }
  .contact-meta { align-items: flex-start; gap: 8px; font-size: 13px; }
  .editorial-hero,
  .detail-hero,
  .scenario-hero { min-height: auto; padding: 122px 0 66px; }
  .editorial-hero-inner,
  .scenario-hero-grid,
  .diagnostic-heading { min-height: auto; gap: 38px; }
  .editorial-hero h1,
  .detail-hero h1,
  .scenario-hero h1,
  .diagnostic-heading h1 {
    font-size: clamp(40px, 11.8vw, 51px);
    line-height: 1.08;
  }
  .editorial-summary > p,
  .scenario-hero-note > p,
  .detail-lead,
  .diagnostic-intro p { font-size: 16px; }
  .editorial-actions { flex-direction: column; }
  .editorial-code { display: none; }
  .truth-layout { padding: 38px 0; grid-template-columns: 1fr; gap: 15px; }
  .truth-answer h2 { font-size: 28px; }
  .capability-grid,
  .edge-grid,
  .result-signals { grid-template-columns: 1fr; }
  .capability-card,
  .edge-card,
  .signal-card { min-height: 320px; padding: 24px 20px; }
  .legacy-ai-bridge { gap: 28px; }
  .legacy-column { min-height: 330px; padding: 24px 20px; }
  .bridge-core { width: 112px; height: 112px; margin: -20px auto; }
  .step-rail li { grid-template-columns: 42px 1fr; gap: 13px; }
  .step-rail p { grid-column: 2; }
  .diagnostic-shell { padding: 122px 0 78px; }
  .form-section { padding: 32px 0; gap: 22px; }
  .field-grid,
  .choice-grid { grid-template-columns: 1fr; }
  .field-wide { grid-column: auto; }
  .field { border-radius: 3px; }
  .choice-card { min-height: 132px; border-radius: 3px; }
  .submit-art { border-radius: 3px; }
  .footer-main { padding: 48px 0 34px; grid-template-columns: 1fr; gap: 28px; }
  .footer-links { grid-column: auto; grid-template-columns: 1fr 1fr; gap: 28px 18px; }
  .footer-bottom { align-items: flex-start; gap: 8px; }
}

@media (max-width: 380px) {
  :root { --brand-shell: calc(100% - 28px); }
  .hero.hero-v5 { padding-right: 16px; padding-left: 16px; }
  .hero-v5 h1 { font-size: 47px; }
  .hero-assurances { grid-template-columns: 1fr; }
  .decision-question p { font-size: 28px; }
  .footer-links { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}