:root {
  --bg: #f4f4f4;
  --shell: #ffffff;
  --ink: #2a2a2a;
  --muted: #5d6a78;
  --line: #d8d8d8;
  --gold: #f2bf14;
  --gold-deep: #d69d00;
  --shadow: 0 18px 38px rgba(0, 0, 0, 0.12);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: #e8e8e8;
}

body {
  color: var(--ink);
  font-family: "Avenir Next", "Trebuchet MS", "Futura", "PingFang SC", "Microsoft YaHei", sans-serif;
  background:
    linear-gradient(180deg, #eeeeee, #e3e3e3);
}

.masthead {
  position: sticky;
  top: 0;
  z-index: 40;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.18);
}

.utility-row {
  background: #1c1c1c;
  border-bottom: 1px solid #2f2f2f;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  width: min(1200px, 100%);
  margin: 0 auto;
}

.utility-box {
  padding: 8px 10px;
  text-align: center;
  color: #d8d8d8;
  border-right: 1px solid #2e2e2e;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.utility-box:last-child {
  border-right: 0;
}

.brand-row {
  background: #f7f7f7;
  border-bottom: 1px solid #d5d5d5;
  width: min(1200px, 100%);
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}

.brand {
  text-decoration: none;
  color: #182f51;
  font-weight: 900;
  letter-spacing: 0.08em;
  font-size: 18px;
}

.brand-sub {
  margin: 0;
  color: #697b8f;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.segment-nav {
  width: min(1200px, 100%);
  margin: 0 auto;
  background: #2f2f2f;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.seg {
  text-decoration: none;
  color: #fff;
  text-align: center;
  padding: 8px 8px 10px;
  display: grid;
  gap: 2px;
  border-right: 1px solid rgba(255, 255, 255, 0.18);
  border-bottom: 4px solid transparent;
}

.seg:last-child {
  border-right: 0;
}

.seg span {
  font-size: 13px;
  font-weight: 800;
}

.seg small {
  font-size: 11px;
  opacity: 0.92;
}

.seg-red { border-bottom-color: #e53935; }
.seg-orange { border-bottom-color: #fb8c00; }
.seg-yellow { border-bottom-color: #fdd835; }
.seg-green { border-bottom-color: #43a047; }
.seg-blue { border-bottom-color: #1e88e5; }

.site {
  width: min(1200px, calc(100% - 20px));
  margin: 16px auto 38px;
  display: grid;
  gap: 14px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.85fr;
  gap: 14px;
}

.spotlight,
.info-tile,
.quick-card,
.panel {
  background: var(--shell);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.spotlight:hover,
.info-tile:hover,
.quick-card:hover,
.panel:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 42px rgba(0, 0, 0, 0.16);
}

.spotlight {
  overflow: hidden;
}

.media-slot {
  position: relative;
  overflow: hidden;
  border: 2px solid #ccb877;
  border-radius: 8px;
  background: #f8e7b0;
  color: #7e6320;
  display: block;
  text-align: left;
  padding: 0;
  font-weight: 800;
}

.slot-img {
  width: 100%;
  height: 100%;
  min-height: 100%;
  display: block;
  object-fit: cover;
  transform: scale(1.01);
}

.media-slot figcaption {
  position: absolute;
  left: 10px;
  bottom: 10px;
  padding: 5px 8px;
  border-radius: 999px;
  background: rgba(15, 23, 38, 0.68);
  color: #fff;
  font-size: 11px;
  letter-spacing: 0.06em;
  border: 1px solid rgba(255, 255, 255, 0.22);
}

.hero-slot {
  min-height: 290px;
  margin: 14px;
}

.spotlight-body {
  padding: 14px 16px 16px;
  background: linear-gradient(140deg, #f8d865, #f0bc18);
  border-top: 1px solid #d7ab25;
}

.eyebrow {
  margin: 0;
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.06em;
  color: #5a4202;
}

.spotlight-body h1 {
  margin: 8px 0;
  font-size: clamp(30px, 4.2vw, 52px);
  line-height: 0.95;
  letter-spacing: -0.02em;
  color: #172c4b;
}

.spotlight-body .zh {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
  color: #1f2f46;
}

.spotlight-body .en {
  margin: 6px 0 0;
  font-size: 12px;
  color: #455a76;
}

.side-tiles {
  display: grid;
  gap: 14px;
}

.info-tile {
  overflow: hidden;
}

.info-tile .media-slot {
  margin: 12px;
  min-height: 110px;
}

.tile-slot {
  min-height: 132px;
}

.tile-body {
  padding: 11px 12px 13px;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
}

.tile-body h3 {
  margin: 0 0 6px;
  color: #fff;
  font-size: 18px;
}

.tile-body p {
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: 13px;
}

.tile-blue { background: linear-gradient(140deg, #1f4f8f, #174379); }
.tile-gold { background: linear-gradient(140deg, #d9a915, #bd8d07); }

.quick-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.quick-card {
  padding: 14px;
}

.quick-card h3 {
  margin: 0;
  color: #15345a;
  font-size: 24px;
}

.quick-card .sub {
  margin: 4px 0 8px;
  color: #6f88a3;
  font-size: 12px;
  font-weight: 700;
}

.quick-card p {
  margin: 0;
  color: #5f6b78;
}

.panel {
  padding: 14px;
}

.panel-head {
  border-bottom: 1px solid #dbdbdb;
  padding-bottom: 8px;
  margin-bottom: 10px;
}

.panel-head h2 {
  margin: 0;
  color: #15345a;
  font-size: clamp(26px, 3.5vw, 42px);
}

.panel-head small {
  color: #73859b;
  font-size: 14px;
}

.dual-text {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin-bottom: 10px;
}

.dual-text p {
  margin: 0;
  padding: 10px;
  border: 1px solid #e4e4e4;
  border-radius: 8px;
  background: #fdfdfd;
}

.dual-text .zh {
  color: #2e3f53;
  font-weight: 700;
}

.dual-text .en {
  color: #6a7c91;
}

.story-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.story-card {
  border: 1px solid #e1e1e1;
  border-radius: 8px;
  overflow: hidden;
  background: #fff;
}

.story-card .media-slot {
  border: 0;
  border-bottom: 1px solid #ddc77f;
  border-radius: 0;
  min-height: 130px;
}

.story-body {
  padding: 10px;
}

.story-body h3 {
  margin: 0;
  color: #203b5f;
  font-size: 19px;
}

.story-body .en {
  margin: 2px 0 8px;
  color: #7890a8;
  font-size: 12px;
  font-weight: 700;
}

.story-body p {
  margin: 0;
  color: #637285;
  font-size: 13px;
}

.feature-stream {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.stream-card {
  border: 1px solid #e2e2e2;
  border-radius: 8px;
  overflow: hidden;
}

.stream-card .media-slot {
  border: 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  border-radius: 0;
  min-height: 150px;
}

.stream-body {
  padding: 10px;
}

.stream-body h3 {
  margin: 0 0 4px;
  color: #fff;
  font-size: 17px;
}

.stream-body p {
  margin: 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: 13px;
}

.stream-orange { background: #db6f2e; }
.stream-blue { background: #2e6da9; }
.stream-green { background: #3d8c57; }

.showcase {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 10px;
}

.show-main {
  min-height: 310px;
}

.show-right {
  display: grid;
  gap: 10px;
}

.show-right .media-slot {
  min-height: 150px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 10px;
}

.contact-card {
  border: 1px solid #e4e4e4;
  border-radius: 8px;
  padding: 10px;
  background: #fcfcfc;
}

.contact-card p {
  margin: 0 0 10px;
  color: #57687e;
}

.contact-card a {
  color: #214873;
}

.lead-form {
  border: 1px solid #e4e4e4;
  border-radius: 8px;
  background: #fff;
  padding: 10px;
  display: grid;
  gap: 8px;
}

.lead-form label {
  display: grid;
  gap: 4px;
}

.lead-form span {
  font-size: 13px;
  color: #5f7086;
  font-weight: 700;
}

.lead-form input,
.lead-form textarea {
  width: 100%;
  border: 1px solid #d4d4d4;
  border-radius: 6px;
  padding: 9px;
  font-family: inherit;
  color: #253649;
}

.lead-form input:focus,
.lead-form textarea:focus {
  outline: none;
  border-color: #cc9f19;
  box-shadow: 0 0 0 2px rgba(204, 159, 25, 0.2);
}

.btn {
  border-radius: 8px;
  border: 1px solid #b78906;
  padding: 9px 12px;
  font-size: 13px;
  font-weight: 900;
}

.btn-main {
  background: linear-gradient(120deg, var(--gold), var(--gold-deep));
  color: #3d2a00;
}

.lead-feedback {
  margin: 0;
  min-height: 18px;
  color: #6f8198;
  font-size: 13px;
}

.lead-feedback.error {
  color: #b42318;
}

.footer {
  text-align: center;
  color: #7d8896;
  font-size: 12px;
  padding: 0 0 20px;
}

.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.45s ease, transform 0.45s ease;
}

.reveal.show {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 980px) {
  .hero-grid,
  .quick-band,
  .dual-text,
  .story-grid,
  .feature-stream,
  .showcase,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .segment-nav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 680px) {
  .utility-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}