:root {
  --bg: #fbf7f2;
  --surface: #ffffff;
  --surface-alt: #fff3e8;
  --surface-dark: #1f1c1a;
  --text: #181818;
  --text-muted: #69625d;
  --line: rgba(35, 26, 19, 0.08);
  --brand: #ff7a1a;
  --brand-soft: #fff0e3;
  --shadow: 0 22px 60px rgba(35, 18, 6, 0.12);
  --radius-xl: 36px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --container: min(1200px, calc(100vw - 48px));
  --transition: 220ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scrollbar-color: rgba(255, 122, 26, 0.85) rgba(255, 242, 229, 0.92);
  scrollbar-width: thin;
}

body {
  margin: 0;
  font-family: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 122, 26, 0.16), transparent 24%),
    linear-gradient(180deg, #fffefc 0%, var(--bg) 100%);
}

body::-webkit-scrollbar {
  width: 10px;
}

body::-webkit-scrollbar-track {
  background: linear-gradient(180deg, rgba(255, 247, 240, 0.96), rgba(255, 239, 224, 0.92));
}

body::-webkit-scrollbar-thumb {
  border: 2px solid rgba(255, 248, 241, 0.96);
  border-radius: 999px;
  background: linear-gradient(180deg, rgba(255, 154, 71, 0.95), rgba(255, 109, 0, 0.92));
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
  transition: background var(--transition), transform var(--transition);
}

body::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, rgba(255, 170, 92, 0.98), rgba(255, 122, 26, 0.96));
}

body::-webkit-scrollbar-corner {
  background: rgba(255, 247, 240, 0.96);
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: var(--container);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid rgba(255, 255, 255, 0.5);
}

.site-header-solid {
  background: rgba(9, 25, 47, 0.76);
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.brand img {
  width: 72px;
}

.top-nav {
  display: flex;
  gap: 12px;
  align-items: center;
}

.top-nav a {
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  color: #554b42;
  transition: color var(--transition), background var(--transition), box-shadow var(--transition);
}

.top-nav a.active,
.top-nav a:hover {
  color: #fff;
  background: linear-gradient(135deg, #ff8b32, #ff6e00);
  box-shadow: 0 12px 26px rgba(255, 122, 26, 0.28);
}

.hero {
  position: relative;
  overflow: clip;
}

.hero-campus {
  padding: 56px 0 72px;
}

.hero-about {
  min-height: 640px;
  display: grid;
  align-items: center;
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 248, 241, 0.95) 0%, rgba(255, 248, 241, 0.72) 42%, rgba(255, 248, 241, 0.2) 100%);
}

.hero-bg-dark::after {
  background:
    linear-gradient(90deg, rgba(7, 16, 31, 0.86) 0%, rgba(7, 16, 31, 0.72) 34%, rgba(7, 16, 31, 0.28) 100%);
}

.hero-grid {
  position: relative;
  z-index: 1;
  min-height: 460px;
  display: grid;
  align-items: center;
}

.hero-grid-about {
  min-height: 640px;
}

.hero-copy {
  max-width: 620px;
}

.hero-copy-light {
  color: #fff;
}

.eyebrow {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand);
  background: rgba(255, 122, 26, 0.12);
}

.hero-copy-light .eyebrow {
  color: #d8ecff;
  background: rgba(216, 236, 255, 0.12);
}

.hero h1 {
  margin: 0;
  font-size: clamp(42px, 6vw, 68px);
  line-height: 1.06;
}

.hero p {
  margin: 18px 0 0;
  font-size: clamp(18px, 2.3vw, 28px);
  line-height: 1.55;
  color: var(--text-muted);
}

.hero-copy-light p {
  color: rgba(255, 255, 255, 0.86);
}

.hero p span {
  color: var(--brand);
  font-weight: 800;
}

.hero-actions {
  margin-top: 30px;
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 132px;
  padding: 15px 24px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform var(--transition), box-shadow var(--transition);
}

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

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, #ff922f, #ff6b00);
  box-shadow: 0 18px 34px rgba(255, 122, 26, 0.28);
}

.phone-link {
  font-size: clamp(26px, 3.2vw, 38px);
  font-weight: 900;
  letter-spacing: 0.02em;
}

.phone-link-light {
  color: #fff;
}

.hero-mini-nav {
  margin-top: 30px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.hero-mini-nav span,
.download-trigger {
  padding: 10px 16px;
  border: 1px solid rgba(255, 122, 26, 0.16);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.75);
}

.download-menu {
  position: relative;
}

.download-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  transition: border-color var(--transition), background var(--transition), color var(--transition), box-shadow var(--transition);
}

.download-trigger::after {
  content: "";
  width: 7px;
  height: 7px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform var(--transition);
}

.download-trigger:hover,
.download-menu:hover .download-trigger,
.download-menu.open .download-trigger {
  color: #fff;
  background: linear-gradient(135deg, #ff8b32, #ff6e00);
  border-color: rgba(255, 122, 26, 0.24);
  box-shadow: 0 12px 26px rgba(255, 122, 26, 0.18);
}

.download-menu:hover .download-trigger::after,
.download-menu.open .download-trigger::after {
  transform: translateY(1px) rotate(225deg);
}

.download-panel {
  position: absolute;
  top: calc(100% + 10px);
  left: 0;
  min-width: 248px;
  padding: 10px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.98);
  border: 1px solid rgba(255, 122, 26, 0.14);
  box-shadow: 0 20px 40px rgba(35, 18, 6, 0.14);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--transition), transform var(--transition), visibility var(--transition);
}

.download-menu:hover .download-panel,
.download-menu.open .download-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.download-panel a {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--text);
  font-size: 14px;
  font-weight: 700;
  transition: background var(--transition), color var(--transition);
}

.download-panel a:hover {
  color: var(--brand);
  background: rgba(255, 122, 26, 0.08);
}

.download-app {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.download-app::before {
  content: "";
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background:
    radial-gradient(circle at 50% 35%, #fff 0 12%, transparent 13%),
    linear-gradient(135deg, #8ee35f, #57b92f);
  box-shadow: 0 4px 10px rgba(87, 185, 47, 0.25);
}

.download-meta {
  font-size: 12px;
  font-weight: 600;
  color: #8b827b;
}

.quick-points {
  margin-top: -26px;
  position: relative;
  z-index: 2;
}

.quick-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  padding: 18px;
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 28px;
  box-shadow: var(--shadow);
}

.quick-grid article {
  padding: 20px 18px;
  border-radius: 22px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(255, 246, 239, 0.96));
}

.quick-grid strong {
  display: block;
  font-size: 20px;
}

.quick-grid p {
  margin: 10px 0 0;
  color: var(--text-muted);
  line-height: 1.75;
}

.section {
  padding: 104px 0;
}

.section-heading {
  margin-bottom: 40px;
  text-align: center;
}

.section-heading-left {
  text-align: left;
}

.section-heading span {
  display: block;
  margin-bottom: 10px;
  color: rgba(84, 72, 63, 0.28);
  letter-spacing: 0.34em;
  font-size: 14px;
  font-weight: 800;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(32px, 4vw, 48px);
}

.section-scene {
  padding-top: 88px;
}

.scene-slider {
  position: relative;
}

.scene-card {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: 28px;
  padding: 28px;
  border-radius: 36px;
  background: linear-gradient(180deg, #fffefe, #fff8f1);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 122, 26, 0.12);
}

.scene-visual {
  overflow: hidden;
  border-radius: 28px;
  min-height: 420px;
  background: linear-gradient(135deg, #eef8ff, #fff2dd);
}

.scene-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.scene-content {
  display: grid;
  align-content: start;
  gap: 18px;
}

.scene-tag {
  display: inline-flex;
  width: fit-content;
  padding: 10px 18px;
  border-radius: 999px;
  color: var(--brand);
  background: var(--brand-soft);
  font-weight: 800;
}

.scene-content h3 {
  margin: 0;
  font-size: clamp(28px, 3vw, 42px);
}

.scene-slogan {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  color: var(--brand);
}

.scene-features {
  display: grid;
  gap: 16px;
}

.scene-features strong {
  display: block;
  margin-bottom: 8px;
  font-size: 20px;
}

.scene-features p,
.scene-note,
.dilemma-card p,
.advantage-card p,
.culture-card p,
.about-story p,
.timeline p,
.honor-card h3,
.footer-brand p,
.footer-brand small,
.footer-grid a,
.footer-qr p,
.value-list p {
  margin: 0;
  color: var(--text-muted);
  line-height: 1.8;
}

.scene-note {
  padding: 16px 18px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(255, 122, 26, 0.08), rgba(255, 122, 26, 0.02));
}

.scene-arrow {
  position: absolute;
  top: 50%;
  width: 52px;
  height: 52px;
  border: 0;
  border-radius: 999px;
  font-size: 34px;
  color: #786a5f;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 16px 30px rgba(35, 26, 19, 0.14);
  cursor: pointer;
  transform: translateY(-50%);
}

.scene-arrow.prev {
  left: -26px;
}

.scene-arrow.next {
  right: -26px;
}

.scene-dots {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 22px;
}

.scene-dots button {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 0;
  border-radius: 999px;
  background: rgba(122, 111, 104, 0.22);
  cursor: pointer;
}

.scene-dots button.active {
  width: 30px;
  background: linear-gradient(90deg, #ff912f, #ff6d00);
}

.section-dilemma,
.section-honors {
  background: linear-gradient(180deg, #fffdf9, #fff7ef);
}

.dilemma-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.dilemma-card {
  padding: 18px;
  border-radius: 28px;
  background: #fff;
  box-shadow: var(--shadow);
}

.dilemma-card img {
  width: 100%;
  height: 210px;
  object-fit: cover;
  border-radius: 22px;
  margin-bottom: 16px;
}

.dilemma-card h3,
.advantage-card h3,
.culture-card h3,
.honor-card h3 {
  margin: 0 0 10px;
  font-size: 24px;
}

.value-shell {
  padding: 54px;
  border-radius: 42px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.92), rgba(255, 249, 241, 0.92));
  box-shadow: var(--shadow);
}

.value-layout {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 26px;
}

.value-list {
  display: grid;
  gap: 18px;
}

.value-list article {
  padding: 18px 20px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.76);
  border: 1px solid rgba(255, 122, 26, 0.08);
}

.value-list strong {
  display: block;
  margin-bottom: 8px;
  font-size: 18px;
}

.value-wheel img {
  width: min(420px, 32vw);
}

.section-advantages {
  background: linear-gradient(180deg, rgba(255, 240, 228, 0.72), rgba(255, 249, 241, 0.42));
}

.advantages-grid,
.culture-grid,
.honors-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.advantage-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 20px;
  align-items: center;
  padding: 18px;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow);
}

.advantage-card img {
  width: 100%;
  height: 168px;
  object-fit: cover;
  border-radius: 24px;
}

.advantage-card span {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--brand);
  font-size: 32px;
  font-weight: 900;
}

.section-about-intro {
  background: linear-gradient(180deg, #fffefe, #f8fbff);
}

.about-intro-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 24px;
}

.about-story,
.about-metrics {
  padding: 32px;
  border-radius: 30px;
  background: #fff;
  box-shadow: var(--shadow);
}

.about-story {
  background:
    linear-gradient(135deg, rgba(255, 122, 26, 0.07), transparent 56%),
    #fff;
}

.about-story p + p {
  margin-top: 18px;
}

.about-metrics {
  display: grid;
  gap: 18px;
  background:
    linear-gradient(135deg, rgba(7, 53, 104, 0.96), rgba(11, 89, 176, 0.88)),
    url("../images/about-banner.png") center/cover;
  color: #fff;
}

.about-metrics div {
  padding: 22px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(10px);
}

.about-metrics strong {
  display: block;
  font-size: 52px;
  font-weight: 900;
}

.about-metrics span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.82);
  line-height: 1.6;
}

.section-culture {
  background: linear-gradient(180deg, #f6fbff, #ffffff);
}

.culture-grid {
  grid-template-columns: repeat(3, 1fr);
}

.culture-card {
  overflow: hidden;
  border-radius: 30px;
  background: #fff;
  box-shadow: var(--shadow);
}

.culture-card img {
  width: 100%;
  height: 240px;
  object-fit: cover;
}

.culture-card div {
  padding: 26px;
  color: #fff;
  background: linear-gradient(180deg, rgba(10, 21, 37, 0.08), rgba(10, 21, 37, 0.72));
}

.culture-card h3,
.culture-card p {
  color: #fff;
  text-shadow: 0 2px 12px rgba(0, 0, 0, 0.28);
}

.section-timeline {
  background:
    radial-gradient(circle at center, rgba(70, 140, 255, 0.08), transparent 28%),
    #0f1727;
  color: #fff;
}

.section-timeline .section-heading span {
  color: rgba(216, 236, 255, 0.36);
}

.timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 18px;
}

.timeline article {
  position: relative;
  padding: 26px;
  border-radius: 26px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
}

.timeline strong {
  display: block;
  margin-bottom: 14px;
  font-size: 34px;
  color: #7dccff;
}

.timeline p {
  color: rgba(255, 255, 255, 0.78);
}

.honor-card {
  padding: 22px;
  border-radius: 30px;
  background: #fff;
  box-shadow: var(--shadow);
}

.honor-card img {
  width: 100%;
  border-radius: 20px;
  margin-bottom: 16px;
}

.site-footer {
  padding: 48px 0 40px;
  color: #fff;
  background:
    linear-gradient(180deg, rgba(31, 28, 26, 0.96), rgba(20, 18, 17, 0.98)),
    #151210;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.7fr 0.7fr 0.8fr;
  gap: 28px;
}

.footer-brand img {
  width: 72px;
  margin-bottom: 16px;
}

.footer-brand small {
  display: block;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.58);
}

.footer-grid h3 {
  margin: 0 0 14px;
  font-size: 18px;
}

.footer-grid a {
  display: block;
  margin-bottom: 10px;
  color: rgba(255, 255, 255, 0.72);
}

.footer-qr img {
  width: 162px;
  height: 162px;
  object-fit: cover;
  border-radius: 18px;
  background: #fff;
}

.footer-qr p {
  margin-top: 12px;
  color: rgba(255, 255, 255, 0.64);
}

.floating-contact {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 30;
  display: grid;
  gap: 4px;
  padding: 16px 18px;
  min-width: 190px;
  border-radius: 22px;
  color: #fff;
  background: linear-gradient(135deg, #ff8e34, #ff6200);
  box-shadow: 0 18px 36px rgba(255, 98, 0, 0.36);
}

.floating-contact span {
  font-size: 13px;
  opacity: 0.9;
}

.floating-contact strong {
  font-size: 22px;
}

@media (max-width: 1080px) {
  .quick-grid,
  .dilemma-grid,
  .advantages-grid,
  .about-intro-grid,
  .culture-grid,
  .timeline,
  .honors-grid,
  .footer-grid,
  .value-layout,
  .scene-card {
    grid-template-columns: 1fr;
  }

  .scene-arrow {
    display: none;
  }

  .value-wheel img {
    width: min(360px, 75vw);
    margin: 0 auto;
  }

  .advantage-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  :root {
    --container: min(100vw - 28px, 1200px);
  }

  .nav-shell {
    gap: 12px;
    flex-direction: column;
  }

  .top-nav {
    width: 100%;
    justify-content: center;
  }

  .download-panel {
    left: 50%;
    transform: translate(-50%, 8px);
  }

  .download-menu.open .download-panel {
    transform: translate(-50%, 0);
  }

  .hero-campus {
    padding: 34px 0 56px;
  }

  .hero-grid,
  .hero-grid-about {
    min-height: auto;
    padding: 30px 0 40px;
  }

  .hero h1 {
    font-size: 38px;
  }

  .hero p {
    font-size: 17px;
  }

  .phone-link {
    font-size: 24px;
  }

  .section,
  .section-scene {
    padding: 72px 0;
  }

  .scene-card,
  .value-shell,
  .about-story,
  .about-metrics,
  .honor-card,
  .culture-card div {
    padding: 22px;
  }

  .scene-visual {
    min-height: 280px;
  }

  .dilemma-card img,
  .advantage-card img,
  .culture-card img {
    height: 200px;
  }

  .footer-qr img {
    width: 128px;
    height: 128px;
  }

  .floating-contact {
    left: 14px;
    right: 14px;
    bottom: 14px;
    min-width: auto;
  }
}