:root {
  --navy: #0b2f52;
  --blue: #145d82;
  --cyan: #158ba0;
  --orange: #f07a2f;
  --green: #17805e;
  --ink: #172230;
  --muted: #607083;
  --line: #d6e2ec;
  --paper: #ffffff;
  --soft: #f4f8fb;
  --soft-blue: #eaf4f8;
  --shadow: 0 16px 46px rgba(11, 47, 82, .12);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: #eef3f6;
  color: var(--ink);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  line-height: 1.65;
}
a { color: inherit; }
img { display: block; max-width: 100%; }
button, input { font: inherit; }

.site-header {
  position: sticky;
  z-index: 20;
  top: 0;
  border-bottom: 1px solid rgba(255,255,255,.12);
  background: rgba(7, 37, 65, .96);
  color: #fff;
  backdrop-filter: blur(12px);
}
.nav-wrap {
  width: min(1180px, calc(100% - 32px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}
.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: linear-gradient(135deg, #1da0af, #f07a2f);
  font-weight: 900;
}
.brand-logo {
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  border-radius: 12px;
  background: #fff;
  object-fit: contain;
  padding: 2px;
}
.brand strong { display: block; font-size: 18px; }
.brand small { display: block; color: #bcd2df; font-size: 11px; }
.nav-links { display: flex; align-items: center; gap: 24px; }
.nav-links a {
  color: #d8e8ef;
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
}
.nav-links a:hover { color: #fff; }
.nav-cta {
  padding: 9px 14px;
  border: 1px solid rgba(255,255,255,.3);
  border-radius: 8px;
}

.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 10% 10%, rgba(21,139,160,.28), transparent 35%),
    linear-gradient(135deg, #071f38 0%, #0d3f64 58%, #0d6674 100%);
  color: #fff;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: .13;
  background-image:
    linear-gradient(rgba(255,255,255,.2) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.2) 1px, transparent 1px);
  background-size: 36px 36px;
}
.hero-inner {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 74px 0 64px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(380px, .9fr);
  gap: 54px;
  align-items: center;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 11px;
  border: 1px solid rgba(255,255,255,.25);
  border-radius: 999px;
  color: #d9eef3;
  font-size: 13px;
  font-weight: 800;
}
.hero h1 {
  max-width: 720px;
  margin: 18px 0 18px;
  font-size: clamp(38px, 5vw, 64px);
  line-height: 1.08;
  letter-spacing: -.03em;
}
.hero h1 span { color: #ffab68; }
.hero-lead {
  max-width: 690px;
  margin: 0;
  color: #d9e8ef;
  font-size: 18px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.btn {
  min-height: 46px;
  padding: 11px 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 900;
}
.btn-primary { background: var(--orange); color: #fff; }
.btn-secondary { border-color: rgba(255,255,255,.35); color: #fff; }
.hero-proof {
  display: flex;
  flex-wrap: wrap;
  gap: 22px;
  margin-top: 30px;
  color: #c9dce5;
  font-size: 13px;
}
.hero-proof strong { display: block; color: #fff; font-size: 21px; }
.hero-visual {
  position: relative;
  border: 1px solid rgba(255,255,255,.2);
  border-radius: 18px;
  padding: 10px;
  background: rgba(255,255,255,.08);
  box-shadow: 0 24px 60px rgba(0,0,0,.22);
}
.hero-visual img {
  width: 100%;
  max-height: 470px;
  border-radius: 12px;
  object-fit: cover;
  object-position: center top;
}
.visual-note {
  position: absolute;
  right: -12px;
  bottom: 22px;
  width: min(280px, 75%);
  padding: 14px 16px;
  border-radius: 10px;
  background: #fff;
  color: var(--ink);
  box-shadow: var(--shadow);
  font-size: 13px;
}
.visual-note strong { display: block; color: var(--navy); font-size: 15px; }

.featured-tool-showcase {
  scroll-margin-top: 88px;
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid #cbdce7;
  background:
    radial-gradient(circle at 12% 18%, rgba(21,139,160,.12), transparent 31%),
    linear-gradient(180deg, #fff 0%, #edf6fa 100%);
}
.featured-tool-showcase::after {
  content: "";
  position: absolute;
  right: -160px;
  bottom: -240px;
  width: 520px;
  height: 520px;
  border: 80px solid rgba(20,93,130,.045);
  border-radius: 50%;
  pointer-events: none;
}
.featured-tool-inner {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 68px 0 72px;
  display: grid;
  grid-template-columns: minmax(0, .82fr) minmax(520px, 1.18fr);
  gap: 54px;
  align-items: center;
}
.featured-tool-copy h2 {
  max-width: 600px;
  margin: 0;
  color: var(--navy);
  font-size: clamp(36px, 4vw, 52px);
  line-height: 1.13;
  letter-spacing: -.035em;
  scroll-margin-top: 88px;
}
.featured-tool-lead {
  max-width: 590px;
  margin: 22px 0 0;
  color: #465c70;
  font-size: 16px;
  line-height: 1.85;
}
.featured-tool-lead strong { display: block; margin-bottom: 5px; color: var(--blue); font-size: 17px; }
.featured-tool-capabilities {
  margin: 26px 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 24px;
  list-style: none;
}
.featured-tool-capabilities li {
  position: relative;
  padding: 11px 0 11px 17px;
  border-top: 1px solid #ccdae4;
  color: #263b4d;
  font-size: 14px;
  font-weight: 800;
}
.featured-tool-capabilities li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--orange);
  box-shadow: 0 0 0 4px rgba(240,122,47,.12);
  transform: translateY(-50%);
}
.featured-tool-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 28px; }
.featured-tool-secondary {
  min-height: 46px;
  padding: 10px 17px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #9cb6c9;
  border-radius: 8px;
  color: var(--blue);
  background: rgba(255,255,255,.62);
  text-decoration: none;
  font-weight: 900;
}
.featured-tool-secondary:hover { border-color: var(--blue); background: #fff; }
.featured-tool-boundary {
  max-width: 590px;
  margin: 22px 0 0;
  padding-left: 13px;
  border-left: 3px solid var(--orange);
  color: #68798a;
  font-size: 12px;
  line-height: 1.7;
}
.featured-tool-media {
  min-width: 0;
  overflow: hidden;
  border: 9px solid #0a2946;
  border-radius: 22px;
  background: #0a2946;
  color: #fff;
  text-decoration: none;
  box-shadow: 0 28px 64px rgba(11,47,82,.23);
  transition: transform .22s ease, box-shadow .22s ease;
}
.featured-tool-media:hover { transform: translateY(-4px); box-shadow: 0 34px 72px rgba(11,47,82,.29); }
.featured-tool-framebar {
  min-height: 42px;
  padding: 8px 13px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: #fff;
}
.featured-tool-framebar strong { font-size: 13px; }
.featured-tool-framebar small { color: #b8d1df; font-size: 11px; }
.featured-tool-screen {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border-radius: 13px;
  background: #f4f7fa;
}
.featured-tool-screen img { width: 100%; height: 100%; object-fit: cover; object-position: left top; }

.section {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0 0;
}
.section-head {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: end;
  margin-bottom: 26px;
}
.section-kicker {
  color: var(--cyan);
  font-size: 13px;
  font-weight: 900;
  letter-spacing: .08em;
}
.section h2 {
  margin: 5px 0 0;
  color: var(--navy);
  font-size: clamp(28px, 4vw, 40px);
  line-height: 1.2;
}
.section-head p {
  max-width: 530px;
  margin: 0;
  color: var(--muted);
}

.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.tool-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  align-items: center;
  margin: -8px 0 20px;
}

.tool-filter {
  padding: 8px 13px;
  border: 1px solid #c9d9e1;
  border-radius: 999px;
  background: #fff;
  color: #315063;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
}

.tool-filter:hover,
.tool-filter.active {
  border-color: var(--blue);
  background: var(--blue);
  color: #fff;
}

.filter-count {
  margin-left: auto;
  color: var(--muted);
  font-size: 13px;
}

.tool-card[hidden] { display: none; }
.tool-card {
  position: relative;
  min-height: 284px;
  padding: 24px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--paper);
  box-shadow: 0 8px 26px rgba(11,47,82,.06);
  text-decoration: none;
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.tool-card:hover {
  transform: translateY(-4px);
  border-color: #91bbce;
  box-shadow: var(--shadow);
}
.tool-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.tool-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: var(--soft-blue);
  color: var(--navy);
  font-weight: 900;
}
.tag {
  padding: 5px 9px;
  border-radius: 999px;
  background: #eef5f8;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
}
.tag.orange { background: #fff1e5; color: #b95616; }
.tag.green { background: #e8f6f0; color: #146d51; }
.tool-card h3 {
  margin: 20px 0 9px;
  color: var(--navy);
  font-size: 21px;
  line-height: 1.35;
}
.tool-card p { margin: 0; color: var(--muted); font-size: 14px; }
.tool-meta {
  margin-top: auto;
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  color: var(--blue);
  font-size: 13px;
  font-weight: 800;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.tool-search {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  margin: 24px 0 16px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}
.tool-search label { color: var(--navy); font-weight: 900; }
.tool-search input {
  width: 100%;
  padding: 13px 15px;
  border: 1px solid #b9ccd6;
  border-radius: 8px;
  color: var(--ink);
  font: inherit;
}
.tool-search input:focus { outline: 3px solid rgba(45,155,169,.14); border-color: var(--cyan); }
.catalog-block { margin-bottom: 18px; }
.catalog-title { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; }
.catalog-title h3 { margin: 0; color: var(--navy); }
.catalog-title span { color: var(--muted); font-size: 13px; }
.hot-links { display: grid; grid-template-columns: repeat(6,minmax(0,1fr)); gap: 9px; margin-top: 12px; }
.hot-links a {
  padding: 12px 10px;
  border-radius: 9px;
  background: linear-gradient(145deg,#0a5274,#0c7185);
  color: #fff;
  font-size: 13px;
  font-weight: 800;
  text-align: center;
  text-decoration: none;
}
.hot-links a:hover { background: var(--orange); transform: translateY(-1px); }
.tool-empty { padding: 28px; border: 1px dashed var(--line); border-radius: 12px; color: var(--muted); text-align: center; }
.scene-grid { display: grid; grid-template-columns: repeat(5,minmax(0,1fr)); gap: 14px; }
.scene-grid button {
  min-height: 118px;
  padding: 19px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  color: var(--navy);
  font: inherit;
  font-size: 17px;
  font-weight: 900;
  text-align: left;
  cursor: pointer;
}
.scene-grid button:hover { border-color: var(--cyan); box-shadow: 0 10px 28px rgba(8,47,77,.09); }
.scene-grid small { display: block; margin-top: 9px; color: var(--muted); font-size: 12px; font-weight: 500; line-height: 1.55; }
.quick-card {
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
}
.quick-card h3 { margin: 0 0 8px; color: var(--navy); }
.quick-card p { margin: 0 0 14px; color: var(--muted); font-size: 14px; }
.quick-card a { color: var(--blue); font-weight: 900; }

.cooperation {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr);
  gap: 32px;
  padding: 34px;
  border-radius: 18px;
  background: linear-gradient(135deg, #0b3153, #126c78);
  color: #fff;
}
.cooperation h2 { color: #fff; }
.cooperation p { color: #d8e9ee; }
.service-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 22px;
}
.service-item {
  padding: 14px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 10px;
  background: rgba(255,255,255,.07);
}
.service-item strong { display: block; }
.service-item small { color: #c9dce4; }
.qr-panel {
  display: grid;
  place-items: center;
  align-content: center;
  padding: 24px;
  border-radius: 14px;
  background: #fff;
  color: var(--ink);
  text-align: center;
}
.qr-panel img { width: 190px; height: 190px; }
.qr-panel strong { margin-top: 12px; color: var(--navy); }
.qr-panel small { color: var(--muted); }
.qr-panel small a { color: var(--blue); }
.cooperation-contact {
  margin-top: 22px;
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 14px;
  border: 1px solid rgba(255,255,255,.18);
  border-radius: 12px;
  background: rgba(255,255,255,.08);
}
.cooperation-contact img { width: 88px; height: 88px; border-radius: 8px; }
.cooperation-contact strong { display: block; margin-bottom: 5px; }
.cooperation-contact small { color: #c9dce4; line-height: 1.7; }
.cooperation-contact a { color: #fff; }
.lead-panel {
  padding: 24px;
  border-radius: 14px;
  background: #fff;
  color: var(--ink);
}
.lead-panel-head span { color: var(--orange); font-size: 12px; font-weight: 900; }
.lead-panel-head h3 { margin: 4px 0 6px; color: var(--navy); font-size: 24px; }
.lead-panel .lead-panel-head p { margin: 0 0 18px; color: var(--muted); font-size: 13px; }
.lead-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}
.lead-panel label {
  display: grid;
  gap: 5px;
  color: #3d5364;
  font-size: 13px;
  font-weight: 800;
}
.lead-panel input,
.lead-panel select,
.lead-panel textarea {
  width: 100%;
  padding: 10px 11px;
  border: 1px solid #c4d3dd;
  border-radius: 7px;
  background: #fff;
  color: var(--ink);
  font: inherit;
}
.lead-panel input:focus,
.lead-panel select:focus,
.lead-panel textarea:focus {
  outline: 2px solid rgba(20,93,130,.18);
  border-color: var(--blue);
}
.lead-form-grid .full { grid-column: 1 / -1; }
.equipment-fields {
  margin: 16px 0;
  padding: 14px;
  border: 1px solid #d8e4eb;
  border-radius: 9px;
  background: #f6f9fb;
}
.equipment-fields legend { padding: 0 6px; color: var(--navy); font-size: 13px; font-weight: 900; }
.lead-message { margin-top: 14px; }
.lead-message textarea { min-height: 112px; resize: vertical; }
.lead-consent {
  display: flex !important;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: 8px !important;
  margin: 13px 0;
  font-weight: 500 !important;
  line-height: 1.55;
}
.lead-consent input { width: auto; margin-top: 3px; }
.lead-consent a { color: var(--blue); }
.lead-honeypot { position: absolute !important; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.lead-submit { width: 100%; border: 0; cursor: pointer; }
.lead-submit:disabled { opacity: .58; cursor: wait; }
.lead-form-status { min-height: 22px; margin: 10px 0 0 !important; font-size: 13px; }
.lead-form-status.pending { color: var(--muted); }
.lead-form-status.success { color: #147153; }
.lead-form-status.error { color: #a62f24; }

.ad-slot {
  min-height: 128px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  padding: 24px 28px;
  border: 1px dashed #9db6c8;
  border-radius: 14px;
  background:
    linear-gradient(120deg, rgba(20,93,130,.04), rgba(240,122,47,.06)),
    #fff;
}
.ad-slot span {
  display: inline-block;
  margin-bottom: 5px;
  color: var(--orange);
  font-size: 12px;
  font-weight: 900;
}
.ad-slot h3 { margin: 0 0 5px; color: var(--navy); }
.ad-slot p { margin: 0; color: var(--muted); font-size: 14px; }
.ad-slot a {
  white-space: nowrap;
  color: var(--blue);
  font-weight: 900;
}

.site-footer {
  margin-top: 72px;
  padding: 34px 0;
  background: #091f35;
  color: #b9ced9;
}
.footer-inner {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}
.footer-inner strong { display: block; color: #fff; }
.footer-links { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-links a { color: #d9e7ed; text-decoration: none; }
.legal { margin-top: 7px; font-size: 12px; }

@media (max-width: 920px) {
  .nav-links a:not(.nav-cta) { display: none; }
  .hero-inner { grid-template-columns: 1fr; padding-top: 54px; }
  .hero-visual { max-width: 620px; }
  .tool-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .quick-grid { grid-template-columns: 1fr; }
  .cooperation { grid-template-columns: 1fr; }
  .hot-links { grid-template-columns: repeat(3,minmax(0,1fr)); }
  .scene-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .featured-tool-inner { grid-template-columns: 1fr; gap: 38px; }
  .featured-tool-copy { max-width: 720px; }
  .featured-tool-media { width: 100%; }
}

@media (max-width: 620px) {
  .nav-wrap { width: min(100% - 22px, 1180px); }
  .brand small { display: none; }
  .nav-cta { font-size: 12px; }
  .hero-inner, .section { width: min(100% - 22px, 1180px); }
  .hero-inner { padding: 44px 0 48px; }
  .hero h1 { font-size: 38px; }
  .hero-lead { font-size: 16px; }
  .hero-proof { gap: 14px; }
  .visual-note { right: 8px; }
  .section { padding-top: 54px; }
  .section-head { display: block; }
  .section-head p { margin-top: 12px; }
  .filter-count { width: 100%; margin-left: 0; }
  .tool-grid { grid-template-columns: 1fr; }
  .tool-card { min-height: 250px; }
  .service-list { grid-template-columns: 1fr; }
  .cooperation { padding: 24px 18px; }
  .lead-form-grid { grid-template-columns: 1fr; }
  .lead-form-grid .full { grid-column: auto; }
  .lead-panel { padding: 18px; }
  .cooperation-contact img { width: 72px; height: 72px; }
  .ad-slot { grid-template-columns: 1fr; padding: 22px; }
  .footer-inner { display: block; }
  .footer-links { margin-top: 18px; }
  .tool-search { grid-template-columns: 1fr; }
  .catalog-title { display: block; }
  .catalog-title span { display: block; margin-top: 5px; }
  .hot-links { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .scene-grid { grid-template-columns: 1fr; }
  .featured-tool-inner { width: min(100% - 22px, 1180px); padding: 48px 0 52px; gap: 30px; }
  .featured-tool-copy h2 { font-size: 34px; }
  .featured-tool-lead { margin-top: 18px; font-size: 15px; }
  .featured-tool-capabilities { margin-top: 22px; grid-template-columns: 1fr 1fr; gap: 0 12px; }
  .featured-tool-capabilities li { padding-left: 15px; font-size: 12px; }
  .featured-tool-actions { display: grid; grid-template-columns: 1fr; }
  .featured-tool-actions a { width: 100%; }
  .featured-tool-media { border-width: 6px; border-radius: 16px; }
  .featured-tool-framebar { min-height: 38px; padding: 7px 9px; }
  .featured-tool-framebar strong { font-size: 11px; }
  .featured-tool-framebar small { font-size: 9px; }
  .featured-tool-screen { aspect-ratio: 4 / 3; border-radius: 10px; }
}

@media (prefers-reduced-motion: reduce) {
  .featured-tool-media { transition: none; }
}


/* 首页重点计算轮播 */
.hero-carousel {
  position: relative;
  min-height: 520px;
  border: 1px solid rgba(255,255,255,.22);
  border-radius: 24px;
  padding: 10px;
  background: rgba(255,255,255,.08);
  box-shadow: 0 28px 70px rgba(0,0,0,.28);
  overflow: visible;
}
.hero-carousel-track {
  position: relative;
  height: 520px;
  overflow: hidden;
  border-radius: 18px;
  background: #061f35;
}
.hero-slide {
  position: absolute;
  inset: 0;
  display: block;
  color: #fff;
  text-decoration: none;
  opacity: 0;
  transform: scale(1.018);
  transition: opacity .58s ease, transform .78s ease;
  pointer-events: none;
}
.hero-slide.is-active {
  opacity: 1;
  transform: scale(1);
  pointer-events: auto;
}
.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.slide-copy {
  position: absolute;
  left: 28px;
  right: 28px;
  bottom: 28px;
  display: grid;
  gap: 5px;
  max-width: 520px;
  color: #fff;
  text-shadow: 0 2px 12px rgba(0,0,0,.45);
}
.slide-copy small {
  width: max-content;
  padding: 5px 10px;
  border: 1px solid rgba(255,255,255,.28);
  border-radius: 999px;
  background: rgba(255,255,255,.12);
  font-size: 12px;
  font-style: normal;
  font-weight: 900;
}
.slide-copy strong {
  font-size: clamp(28px, 3.2vw, 46px);
  line-height: 1.08;
  letter-spacing: -.03em;
}
.slide-copy em {
  max-width: 500px;
  color: #dceef4;
  font-size: 16px;
  font-style: normal;
  line-height: 1.55;
}
.slide-copy b {
  width: max-content;
  margin-top: 8px;
  padding: 9px 14px;
  border-radius: 999px;
  background: var(--orange);
  color: #fff;
  font-size: 14px;
  box-shadow: 0 10px 24px rgba(240,122,47,.32);
}
.carousel-control {
  position: absolute;
  top: 50%;
  z-index: 4;
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border: 1px solid rgba(255,255,255,.36);
  border-radius: 50%;
  background: rgba(6,31,53,.66);
  color: #fff;
  font-size: 32px;
  line-height: 1;
  cursor: pointer;
  transform: translateY(-50%);
  backdrop-filter: blur(8px);
}
.carousel-control:hover { background: rgba(240,122,47,.92); }
.carousel-prev { left: 22px; }
.carousel-next { right: 22px; }
.hero-carousel-dots {
  position: absolute;
  z-index: 5;
  left: 28px;
  top: 28px;
  display: flex;
  gap: 7px;
  padding: 8px;
  border-radius: 999px;
  background: rgba(6,31,53,.48);
  backdrop-filter: blur(8px);
}
.carousel-dot {
  width: 9px;
  height: 9px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(255,255,255,.45);
  cursor: pointer;
  transition: width .25s ease, background .25s ease;
}
.carousel-dot.is-active {
  width: 28px;
  background: var(--orange);
}
@media (max-width: 920px) {
  .hero-carousel { max-width: 680px; min-height: 430px; }
  .hero-carousel-track { height: 430px; }
}
@media (max-width: 620px) {
  .hero-carousel { min-height: 390px; padding: 7px; border-radius: 18px; }
  .hero-carousel-track { height: 390px; border-radius: 13px; }
  .slide-copy { left: 18px; right: 18px; bottom: 24px; }
  .slide-copy strong { font-size: 30px; }
  .slide-copy em { font-size: 14px; }
  .carousel-control { display: none; }
  .hero-carousel-dots { left: 16px; top: 16px; }}


/* 站点级优化：移动导航、虚拟目录、轮播可访问性 */
.nav-toggle {
  display: none;
  width: 46px;
  height: 42px;
  align-items: center;
  justify-content: center;
  gap: 4px;
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 10px;
  background: rgba(255,255,255,.08);
  color: #fff;
  cursor: pointer;
}
.nav-toggle span {
  width: 18px;
  height: 2px;
  display: block;
  border-radius: 999px;
  background: currentColor;
}
.nav-toggle em {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}
.mobile-quick-nav { display: none; }
.tool-grid.is-virtualized {
  align-items: start;
  contain: layout style paint;
}
.tool-grid.is-virtualized .tool-card {
  height: 284px;
  overflow: hidden;
}
.virtual-note {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
}
.hero-slide[aria-hidden="true"] { visibility: hidden; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero-slide, .carousel-dot, .tool-card { transition: none !important; }
}
@media (max-width: 920px) {
  .nav-wrap { position: relative; }
  .nav-toggle { display: inline-flex; flex-direction: column; flex-shrink: 0; }
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    left: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid rgba(255,255,255,.18);
    border-radius: 14px;
    background: rgba(7,37,65,.98);
    box-shadow: 0 18px 46px rgba(0,0,0,.25);
  }
  .nav-links.is-open { display: flex; }
  .nav-links a,
  .nav-links a:not(.nav-cta) {
    display: flex;
    padding: 12px 14px;
    border-radius: 10px;
  }
  .nav-links a:hover { background: rgba(255,255,255,.08); }
  .nav-cta { border-color: rgba(255,255,255,.26); }
  .mobile-quick-nav {
    position: fixed;
    z-index: 30;
    left: 10px;
    right: 10px;
    bottom: 10px;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
    padding: 7px;
    border: 1px solid rgba(10,60,90,.18);
    border-radius: 16px;
    background: rgba(255,255,255,.94);
    box-shadow: 0 10px 32px rgba(11,47,82,.18);
    backdrop-filter: blur(10px);
  }
  .mobile-quick-nav a {
    padding: 8px 4px;
    border-radius: 11px;
    color: var(--navy);
    font-size: 13px;
    font-weight: 900;
    text-align: center;
    text-decoration: none;
  }
  .mobile-quick-nav a:hover { background: #eaf4f8; }
  body { padding-bottom: 70px; }
}
@media (max-width: 620px) {
  .tool-grid.is-virtualized .tool-card { height: 262px; }
}