:root {
  --red: #b5121b;
  --red-deep: #70060e;
  --red-soft: #f7e9ea;
  --ink: #111215;
  --ink-2: #26272b;
  --muted: #6f7279;
  --line: #e4e6ea;
  --soft: #f4f5f7;
  --paper: #ffffff;
  --cream: #f8f6f1;
  --project-accent: var(--red);
  --shadow: 0 24px 70px rgba(12, 13, 16, 0.12);
  --radius: 14px;
  --max: 1200px;
  --sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", Arial, sans-serif;
  --serif: "Songti SC", "STSong", "SimSun", Georgia, serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  color: var(--ink);
  background: var(--paper);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

::selection {
  background: var(--red);
  color: #fff;
}

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

button,
input,
textarea {
  font: inherit;
}

button {
  color: inherit;
}

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

.container {
  width: min(calc(100% - 48px), var(--max));
  margin-inline: auto;
}

.announcement {
  position: relative;
  z-index: 80;
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(circle at 68% 0%, rgba(255, 76, 88, 0.38), transparent 28%),
    linear-gradient(90deg, #2b0007, #65000e 56%, #260005);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.announcement-inner {
  min-height: 58px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 24px;
}

.announcement-mark {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.16em;
}

.announcement-mark::before {
  content: "";
  width: 28px;
  height: 1px;
  background: #fff;
  opacity: 0.55;
}

.announcement-copy {
  text-align: center;
  font-size: 18px;
  font-weight: 650;
  letter-spacing: 0.18em;
}

.announcement-copy small {
  margin-left: 20px;
  color: rgba(255, 255, 255, 0.65);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
}

.announcement-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  color: #2b0007;
  background: #fff;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 70;
  height: 76px;
  display: flex;
  align-items: center;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: box-shadow 0.3s ease;
}

.site-nav.is-scrolled {
  box-shadow: 0 10px 30px rgba(10, 11, 14, 0.07);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 900;
  letter-spacing: 0.02em;
}

.brand-glyph {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--ink);
  border-radius: 50%;
  font-family: var(--serif);
  font-size: 17px;
  font-weight: 900;
}

.brand-dot {
  color: var(--red);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-links a {
  position: relative;
  padding: 8px 0;
  color: #404147;
  font-size: 14px;
  font-weight: 650;
}

.nav-links a:not(.nav-cta)::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 2px;
  left: 0;
  height: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.28s ease;
}

.nav-links a:hover::after,
.nav-links a.is-active::after {
  transform: scaleX(1);
  transform-origin: left;
}

.nav-cta {
  padding: 10px 18px !important;
  color: #fff !important;
  background: var(--red);
  border-radius: 7px;
  transition: transform 0.25s ease, background 0.25s ease;
}

.nav-cta:hover {
  background: var(--red-deep);
  transform: translateY(-2px);
}

.menu-toggle {
  width: 44px;
  height: 44px;
  display: none;
  place-items: center;
  background: transparent;
  border: 0;
  cursor: pointer;
}

.menu-toggle span,
.menu-toggle::before,
.menu-toggle::after {
  content: "";
  width: 24px;
  height: 2px;
  display: block;
  background: var(--ink);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.menu-toggle span {
  margin: 5px 0;
}

.menu-toggle.is-open::before {
  transform: translateY(7px) rotate(45deg);
}

.menu-toggle.is-open span {
  opacity: 0;
}

.menu-toggle.is-open::after {
  transform: translateY(-7px) rotate(-45deg);
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--ink);
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  transform: scale(1.035);
  animation: hero-in 1.2s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(10, 11, 13, 0.82) 0%, rgba(10, 11, 13, 0.48) 46%, rgba(10, 11, 13, 0.12) 82%);
}

.hero-copy {
  position: relative;
  z-index: 2;
  width: 100%;
  color: #fff;
}

.hero-copy-inner {
  width: min(100% - 48px, 620px);
  margin-left: max(24px, calc((100vw - var(--max)) / 2));
  padding: 84px 42px 88px 0;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 38px;
  height: 2px;
  background: #fff;
}

.hero h1 {
  max-width: 680px;
  font-size: clamp(48px, 5vw, 78px);
  line-height: 1.08;
  letter-spacing: -0.05em;
}

.hero h1 .serif {
  display: block;
  margin-top: 8px;
  color: #ffd4d0;
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: 0.02em;
}

.hero-lead {
  max-width: 520px;
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 17px;
  line-height: 1.85;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 38px;
}

.button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 22px;
  border: 1px solid transparent;
  border-radius: 7px;
  font-size: 14px;
  font-weight: 750;
  transition: transform 0.25s ease, color 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

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

.button-light {
  color: var(--red-deep);
  background: #fff;
}

.button-ghost {
  color: #fff;
  background: transparent;
  border-color: rgba(255, 255, 255, 0.38);
}

.button-dark {
  color: #fff;
  background: var(--ink);
}

.button-red {
  color: #fff;
  background: var(--red);
}

@keyframes hero-in {
  to { transform: scale(1); }
}

.problem-section {
  padding: 82px 0 86px;
  background: #fff;
}

.problem-heading {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
}

.problem-heading h2 {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1.25;
  letter-spacing: -0.04em;
}

.problem-heading p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 16px;
}

.problem-pills {
  max-width: 1120px;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin: 42px auto 0;
}

.problem-pill {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  color: #3d3e42;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 14px;
  box-shadow: 0 8px 24px rgba(12, 13, 16, 0.03);
}

.problem-pill span {
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--red);
  border-radius: 4px;
  font-size: 12px;
  font-weight: 800;
}

.section {
  padding: 110px 0;
}

.section-soft {
  background: var(--soft);
}

.section-ink {
  color: #fff;
  background: var(--ink);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 46px;
}

.section-kicker {
  display: block;
  margin-bottom: 10px;
  color: var(--red);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.section-ink .section-kicker {
  color: #ff6b72;
}

.section-title {
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1.15;
  letter-spacing: -0.045em;
}

.section-desc {
  max-width: 500px;
  color: var(--muted);
  font-size: 15px;
}

.section-ink .section-desc {
  color: rgba(255, 255, 255, 0.58);
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 0 0 36px;
}

.filters button {
  padding: 9px 16px;
  color: #5b5d63;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  transition: 0.25s ease;
}

.filters button:hover,
.filters button.is-active {
  color: #fff;
  background: var(--ink);
  border-color: var(--ink);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 22px;
}

.project-card {
  grid-column: span 4;
  min-width: 0;
  overflow: hidden;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.45s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.45s ease, border-color 0.3s ease;
}

.project-card.featured {
  grid-column: span 8;
}

.project-card:hover {
  border-color: rgba(0, 0, 0, 0.14);
  box-shadow: var(--shadow);
  transform: translateY(-7px);
}

.project-cover {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: #e9eaed;
}

.project-card.featured .project-cover {
  aspect-ratio: 16 / 9;
}

.project-cover::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 54%, rgba(0, 0, 0, 0.5));
  opacity: 0.55;
  transition: opacity 0.4s ease;
}

.project-card:hover .project-cover::after {
  opacity: 0.28;
}

.project-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.75s cubic-bezier(0.16, 1, 0.3, 1);
}

.project-card:hover .project-cover img {
  transform: scale(1.045);
}

.project-number {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  min-width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  color: #fff;
  background: rgba(10, 11, 14, 0.72);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 50%;
  font-family: Georgia, serif;
  font-size: 13px;
  font-style: italic;
  backdrop-filter: blur(10px);
}

.project-tags {
  position: absolute;
  right: 14px;
  bottom: 14px;
  left: 14px;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tags span {
  padding: 5px 9px;
  color: #fff;
  background: rgba(0, 0, 0, 0.5);
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 999px;
  font-size: 10px;
  letter-spacing: 0.05em;
  backdrop-filter: blur(8px);
}

.project-info {
  min-height: 215px;
  display: flex;
  flex-direction: column;
  padding: 24px 24px 22px;
}

.project-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  color: var(--red);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.project-meta time {
  color: #a4a6ad;
  font-family: Georgia, serif;
  font-style: italic;
  letter-spacing: 0;
}

.project-info h3 {
  margin-top: 12px;
  font-size: 23px;
  line-height: 1.35;
  letter-spacing: -0.025em;
}

.project-info p {
  margin-top: 9px;
  color: var(--muted);
  font-size: 14px;
}

.project-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 18px;
  color: var(--ink);
  border-top: 1px solid var(--line);
  font-size: 13px;
  font-weight: 800;
}

.project-link span:last-child {
  width: 30px;
  height: 30px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--ink);
  border-radius: 50%;
  transition: transform 0.3s ease, background 0.3s ease;
}

.project-card:hover .project-link span:last-child {
  background: var(--red);
  transform: translateX(3px);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.capability-card {
  min-height: 174px;
  padding: 25px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.capability-card:hover {
  box-shadow: 0 20px 45px rgba(15, 16, 18, 0.09);
  transform: translateY(-4px);
}

.capability-icon {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--red);
  border-radius: 7px;
  font-size: 13px;
  font-weight: 900;
}

.capability-card h3 {
  margin-top: 18px;
  font-size: 17px;
}

.capability-card p {
  margin-top: 7px;
  color: var(--muted);
  font-size: 13px;
}

.service-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.service-item {
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 28px;
  text-align: center;
  background: #fff;
  border-radius: 10px;
}

.service-item .service-icon {
  color: var(--red);
  font-size: 28px;
  line-height: 1;
}

.service-item strong {
  display: block;
  font-size: 22px;
  line-height: 1.2;
}

.service-item span {
  display: block;
  margin-top: 4px;
  color: var(--muted);
  font-size: 12px;
}

.about-layout {
  display: grid;
  grid-template-columns: 0.86fr 1.14fr;
  gap: 70px;
  align-items: center;
}

.portrait-frame {
  position: relative;
  min-height: 590px;
  overflow: hidden;
  background: #e8e8e8;
  border-radius: 12px;
}

.portrait-frame::before {
  content: "";
  position: absolute;
  inset: 20px;
  z-index: 2;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 8px;
  pointer-events: none;
}

.portrait-frame img {
  width: 100%;
  height: 100%;
  min-height: 590px;
  object-fit: cover;
  object-position: center 22%;
}

.portrait-label {
  position: absolute;
  right: 20px;
  bottom: 20px;
  left: 20px;
  z-index: 3;
  padding: 18px 20px;
  color: #fff;
  background: rgba(15, 16, 18, 0.78);
  border-radius: 8px;
  backdrop-filter: blur(12px);
}

.portrait-label strong {
  font-size: 18px;
}

.portrait-label span {
  display: block;
  margin-top: 4px;
  color: rgba(255, 255, 255, 0.62);
  font-size: 12px;
}

.about-copy h2 {
  max-width: 680px;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.2;
  letter-spacing: -0.045em;
}

.about-copy h2 span {
  color: var(--red);
  font-family: var(--serif);
  font-weight: 400;
}

.about-copy > p {
  max-width: 680px;
  margin-top: 24px;
  color: #4e5056;
  font-size: 17px;
  line-height: 1.9;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 38px;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}

.about-stat {
  min-height: 122px;
  padding: 22px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-stat strong {
  font-family: Georgia, serif;
  font-size: 40px;
  line-height: 1;
}

.about-stat strong em {
  color: var(--red);
  font-size: 20px;
  font-style: normal;
}

.about-stat span {
  display: block;
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
}

.marquee-section {
  padding: 68px 0 0;
  overflow: hidden;
  background: #fff;
}

.marquee-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 40px;
  margin-bottom: 28px;
}

.marquee-head h2 {
  font-size: clamp(28px, 3vw, 42px);
  letter-spacing: -0.04em;
}

.marquee-head p {
  color: var(--muted);
  font-size: 13px;
}

.marquee-window {
  overflow: hidden;
  padding-bottom: 22px;
}

.marquee-track {
  width: max-content;
  display: flex;
  gap: 14px;
  padding-left: 14px;
  animation: marquee-scroll 42s linear infinite;
  will-change: transform;
}

.marquee-window:hover .marquee-track {
  animation-play-state: paused;
}

.marquee-item {
  position: relative;
  width: 330px;
  aspect-ratio: 16 / 10;
  flex: 0 0 auto;
  overflow: hidden;
  background: #e9eaed;
  border-radius: 9px;
}

.marquee-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.5s ease;
}

.marquee-item:hover img {
  transform: scale(1.05);
}

.marquee-item span {
  position: absolute;
  right: 12px;
  bottom: 12px;
  left: 12px;
  padding: 8px 11px;
  overflow: hidden;
  color: #fff;
  background: rgba(0, 0, 0, 0.64);
  border-radius: 6px;
  font-size: 12px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
  backdrop-filter: blur(8px);
}

@keyframes marquee-scroll {
  to { transform: translateX(calc(-50% - 7px)); }
}

.cta-band {
  padding: 84px 0;
  color: #fff;
  background:
    radial-gradient(circle at 82% 12%, rgba(255, 105, 114, 0.28), transparent 28%),
    linear-gradient(120deg, #8a0811, #430005);
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
}

.cta-copy h2 {
  max-width: 760px;
  font-size: clamp(34px, 4vw, 58px);
  line-height: 1.2;
  letter-spacing: -0.045em;
}

.cta-copy h2 span {
  color: #ffb1b5;
  font-family: var(--serif);
  font-weight: 400;
}

.cta-copy p {
  max-width: 620px;
  margin-top: 16px;
  color: rgba(255, 255, 255, 0.64);
}

.site-footer {
  padding: 68px 0 26px;
  color: #fff;
  background: #101114;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr 0.9fr 0.9fr 1fr;
  gap: 42px;
  padding-bottom: 50px;
}

.footer-brand .brand {
  color: #fff;
}

.footer-brand .brand-glyph {
  color: var(--ink);
  background: #fff;
}

.footer-brand p {
  max-width: 300px;
  margin-top: 20px;
  color: rgba(255, 255, 255, 0.48);
  font-size: 13px;
}

.footer-col h3 {
  color: rgba(255, 255, 255, 0.45);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.footer-col ul {
  margin-top: 16px;
  list-style: none;
}

.footer-col li + li {
  margin-top: 8px;
}

.footer-col a,
.footer-col span {
  color: rgba(255, 255, 255, 0.82);
  font-size: 13px;
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: #ff7279;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 24px;
  color: rgba(255, 255, 255, 0.38);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 11px;
}

.back-top {
  color: rgba(255, 255, 255, 0.7);
}

/* Project detail page */
.project-page .announcement {
  background: linear-gradient(90deg, #111215, #2a2b31);
}

.project-hero {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: #111215;
}

.project-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(8, 9, 11, 0.95) 0%, rgba(8, 9, 11, 0.78) 42%, rgba(8, 9, 11, 0.18) 78%),
    linear-gradient(0deg, rgba(8, 9, 11, 0.7), transparent 50%);
}

.project-hero-image {
  position: absolute;
  inset: 0;
}

.project-hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: saturate(0.9) brightness(0.8);
}

.project-hero-inner {
  position: relative;
  z-index: 2;
  min-height: 690px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding-top: 120px;
  padding-bottom: 72px;
}

.project-back {
  position: absolute;
  top: 42px;
  left: 0;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: rgba(255, 255, 255, 0.74);
  font-size: 13px;
  font-weight: 700;
}

.project-back:hover {
  color: #fff;
}

.project-hero-kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.project-hero-kicker span {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--project-accent);
  border-radius: 50%;
  font-family: Georgia, serif;
  font-size: 12px;
  font-style: italic;
}

.project-hero h1 {
  max-width: 860px;
  font-size: clamp(46px, 7vw, 92px);
  line-height: 1.05;
  letter-spacing: -0.055em;
}

.project-hero-en {
  max-width: 760px;
  margin-top: 14px;
  color: rgba(255, 255, 255, 0.56);
  font-family: Georgia, serif;
  font-size: clamp(18px, 2vw, 28px);
  font-style: italic;
}

.project-hero-deck {
  max-width: 720px;
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.78);
  font-size: 17px;
  line-height: 1.8;
}

.project-meta-bar {
  position: relative;
  z-index: 3;
  margin-top: -1px;
  color: #fff;
  background: var(--project-accent);
}

.project-meta-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.project-meta-item {
  min-height: 112px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 22px 26px;
  border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.project-meta-item:first-child {
  border-left: 1px solid rgba(255, 255, 255, 0.2);
}

.project-meta-item small {
  color: rgba(255, 255, 255, 0.58);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.project-meta-item strong {
  margin-top: 6px;
  font-size: 15px;
  line-height: 1.4;
}

.project-story {
  padding: 110px 0;
}

.story-intro {
  display: grid;
  grid-template-columns: 0.62fr 1.38fr;
  gap: 70px;
  align-items: start;
}

.story-index {
  position: sticky;
  top: 110px;
}

.story-index span {
  display: block;
  color: var(--project-accent);
  font-family: Georgia, serif;
  font-size: 14px;
  font-style: italic;
}

.story-index h2 {
  margin-top: 10px;
  font-size: clamp(32px, 4vw, 50px);
  line-height: 1.2;
  letter-spacing: -0.045em;
}

.story-copy .lead {
  color: #2d2f34;
  font-size: clamp(21px, 2.3vw, 30px);
  line-height: 1.7;
  letter-spacing: -0.02em;
}

.story-columns {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 34px;
  margin-top: 42px;
  padding-top: 38px;
  border-top: 1px solid var(--line);
}

.story-block small {
  color: var(--project-accent);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.story-block h3 {
  margin-top: 9px;
  font-size: 20px;
}

.story-block p {
  margin-top: 10px;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.85;
}

.project-stats {
  padding: 82px 0;
  background: var(--soft);
}

.project-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.project-stat {
  min-height: 170px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.project-stat strong {
  color: var(--project-accent);
  font-family: Georgia, var(--serif);
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1;
}

.project-stat span {
  margin-top: 12px;
  color: var(--muted);
  font-size: 13px;
}

.principle-section {
  padding: 100px 0;
  color: #fff;
  background: #111215;
}

.principle-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 46px;
  background: rgba(255, 255, 255, 0.13);
  border: 1px solid rgba(255, 255, 255, 0.13);
}

.principle-card {
  min-height: 240px;
  padding: 32px;
  background: #111215;
}

.principle-card span {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--project-accent);
  border-radius: 50%;
  font-family: Georgia, serif;
  font-style: italic;
}

.principle-card h3 {
  margin-top: 28px;
  font-size: 22px;
}

.principle-card p {
  margin-top: 10px;
  color: rgba(255, 255, 255, 0.54);
  font-size: 14px;
}

.gallery-section {
  padding: 110px 0;
  background: #efeff1;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: 20px;
  align-items: start;
}

.gallery-item {
  grid-column: span 6;
  overflow: hidden;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 8px 28px rgba(10, 11, 14, 0.06);
}

.gallery-item.full {
  grid-column: span 12;
}

.gallery-item.wide {
  grid-column: span 8;
}

.gallery-item.portrait {
  grid-column: span 4;
}

.gallery-item.third {
  grid-column: span 4;
}

.gallery-item.long {
  grid-column: span 6;
}

.gallery-item.small {
  grid-column: span 4;
}

.gallery-image-wrap {
  overflow: hidden;
  background:
    linear-gradient(45deg, #f2f2f3 25%, transparent 25%),
    linear-gradient(-45deg, #f2f2f3 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #f2f2f3 75%),
    linear-gradient(-45deg, transparent 75%, #f2f2f3 75%);
  background-color: #fafafa;
  background-size: 28px 28px;
  background-position: 0 0, 0 14px, 14px -14px, -14px 0;
}

.gallery-image-wrap img,
.gallery-image-wrap video {
  width: 100%;
  height: auto;
}

.gallery-item:not(.long) .gallery-image-wrap {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
}

.gallery-item.full .gallery-image-wrap,
.gallery-item.wide .gallery-image-wrap {
  aspect-ratio: 16 / 9;
}

.gallery-item.portrait .gallery-image-wrap,
.gallery-item.third .gallery-image-wrap {
  aspect-ratio: 4 / 5;
}

.gallery-item.small .gallery-image-wrap {
  aspect-ratio: 16 / 9;
}

.gallery-item:not(.long) .gallery-image-wrap img,
.gallery-item:not(.long) .gallery-image-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.gallery-caption {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 17px;
  color: #55575d;
  border-top: 1px solid var(--line);
  font-size: 12px;
}

.gallery-caption em {
  color: #a2a4aa;
  font-family: Georgia, serif;
  font-style: italic;
}

.next-project {
  position: relative;
  overflow: hidden;
  color: #fff;
  background: #1c1d21;
}

.next-project a {
  min-height: 360px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 70px 24px;
  text-align: center;
}

.next-project small {
  color: rgba(255, 255, 255, 0.48);
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.next-project h2 {
  margin-top: 18px;
  font-size: clamp(36px, 5vw, 70px);
  line-height: 1.15;
  letter-spacing: -0.05em;
}

.next-project span {
  width: 56px;
  height: 56px;
  display: grid;
  place-items: center;
  margin-top: 30px;
  color: var(--ink);
  background: #fff;
  border-radius: 50%;
  font-size: 22px;
  transition: transform 0.3s ease, background 0.3s ease;
}

.next-project a:hover span {
  background: var(--project-accent);
  transform: translateX(6px);
}

.reveal {
  opacity: 1;
  transform: none;
}

.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.72s cubic-bezier(0.16, 1, 0.3, 1), transform 0.72s cubic-bezier(0.16, 1, 0.3, 1);
}

.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 999;
  padding: 10px 14px;
  color: #fff;
  background: var(--ink);
  border-radius: 6px;
  transform: translateY(-150%);
}

.skip-link:focus {
  transform: none;
}

@media (max-width: 1020px) {
  .announcement-copy {
    font-size: 15px;
  }

  .hero-copy-inner {
    width: min(calc(100% - 48px), 860px);
    margin-inline: auto;
    padding: 92px 0;
  }

  .project-card,
  .project-card.featured {
    grid-column: span 6;
  }

  .project-card.featured .project-cover {
    aspect-ratio: 4 / 3;
  }

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

  .project-hero-inner {
    min-height: 620px;
  }

  .story-intro {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .story-index {
    position: static;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 32px), var(--max));
  }

  .announcement-inner {
    min-height: 48px;
    grid-template-columns: 1fr auto;
    gap: 10px;
  }

  .announcement-mark {
    display: none;
  }

  .announcement-copy {
    overflow: hidden;
    text-align: left;
    font-size: 12px;
    letter-spacing: 0.08em;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  .announcement-copy small {
    display: none;
  }

  .announcement-link {
    padding: 6px 10px;
    font-size: 10px;
  }

  .site-nav {
    height: 66px;
  }

  .brand {
    font-size: 18px;
  }

  .brand-glyph {
    width: 31px;
    height: 31px;
  }

  .menu-toggle {
    display: grid;
    position: relative;
    z-index: 2;
  }

  .nav-links {
    position: fixed;
    top: 66px;
    right: 0;
    bottom: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 38px 24px;
    background: rgba(255, 255, 255, 0.98);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-18px);
    transition: opacity 0.28s ease, transform 0.42s cubic-bezier(0.16, 1, 0.3, 1), visibility 0s linear 0.42s;
  }

  .nav-links.is-open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    transition-delay: 0s;
  }

  .nav-links a {
    padding: 17px 0;
    border-bottom: 1px solid var(--line);
    font-size: 22px;
  }

  .nav-cta {
    margin-top: 24px;
    padding: 14px 18px !important;
    text-align: center;
    border-bottom: 0 !important;
    font-size: 16px !important;
  }

  .hero {
    min-height: 100svh;
  }

  .hero-copy-inner {
    width: calc(100% - 32px);
    padding: 76px 0 72px;
  }

  .hero h1 {
    font-size: clamp(44px, 13vw, 62px);
  }

  .hero-lead {
    font-size: 15px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .button {
    width: 100%;
  }

  .problem-section,
  .section,
  .project-story,
  .gallery-section {
    padding: 78px 0;
  }

  .problem-pills {
    align-items: stretch;
    flex-direction: column;
  }

  .problem-pill {
    width: 100%;
    border-radius: 10px;
  }

  .section-head,
  .marquee-head,
  .cta-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .project-grid {
    grid-template-columns: 1fr;
  }

  .project-card,
  .project-card.featured {
    grid-column: auto;
  }

  .project-info {
    min-height: auto;
  }

  .project-link {
    margin-top: 20px;
  }

  .capability-grid,
  .service-strip,
  .project-stat-grid,
  .principle-grid {
    grid-template-columns: 1fr;
  }

  .about-layout {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .portrait-frame,
  .portrait-frame img {
    min-height: 470px;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
  }

  .marquee-item {
    width: 260px;
  }

  .cta-band {
    padding: 66px 0;
  }

  .cta-inner .button {
    width: 100%;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
  }

  .project-hero-inner {
    min-height: 610px;
    padding-bottom: 52px;
  }

  .project-back {
    top: 28px;
  }

  .project-hero h1 {
    font-size: clamp(42px, 13vw, 64px);
  }

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

  .project-meta-item:nth-child(odd) {
    border-left: 1px solid rgba(255, 255, 255, 0.2);
  }

  .project-meta-item:nth-child(-n+2) {
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
  }

  .story-columns {
    grid-template-columns: 1fr;
  }

  .project-stats,
  .principle-section {
    padding: 72px 0;
  }

  .principle-card {
    min-height: auto;
  }

  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .gallery-item,
  .gallery-item.full,
  .gallery-item.wide,
  .gallery-item.portrait,
  .gallery-item.third,
  .gallery-item.long,
  .gallery-item.small {
    grid-column: auto;
  }

  .gallery-item.portrait .gallery-image-wrap,
  .gallery-item.third .gallery-image-wrap {
    aspect-ratio: 4 / 5;
  }

  .next-project a {
    min-height: 300px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .marquee-track {
    width: auto;
    overflow-x: auto;
  }
}

/* ============ 微信二维码弹窗 ============ */
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.qr-modal{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:24px;background:rgba(10,11,13,.62);backdrop-filter:blur(6px)}
.qr-modal[hidden]{display:none}
.qr-modal-box{position:relative;width:min(340px,100%);padding:32px 28px;text-align:center;background:#fff;border-radius:14px;box-shadow:var(--shadow);animation:qr-pop .32s cubic-bezier(.16,1,.3,1)}
@keyframes qr-pop{from{transform:scale(.92) translateY(12px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}
.qr-modal-box h3{font-size:20px;font-weight:800}
.qr-modal-box img{width:220px;max-width:100%;margin:20px auto 0;border-radius:8px}
.qr-modal-box p{margin-top:16px;color:var(--muted);font-size:13px}
.qr-modal-close{position:absolute;top:12px;right:14px;width:32px;height:32px;border:0;background:transparent;font-size:22px;line-height:1;color:var(--muted);cursor:pointer;border-radius:50%}
.qr-modal-close:hover{background:var(--soft);color:var(--ink)}

/* ============ 鼠标特效 ============ */
.cursor-dot,.cursor-ring{position:fixed;top:0;left:0;pointer-events:none;z-index:9999;transform:translate(-50%,-50%);opacity:0;will-change:transform}
.cursor-dot{width:6px;height:6px;background:var(--red);border-radius:50%}
.cursor-ring{width:24px;height:24px;border:1.5px solid var(--red);border-radius:50%;transition:width .25s,height .25s,border-color .25s,background .25s}
.cursor-ring.hover{width:42px;height:42px;background:rgba(181,18,27,.10);border-color:var(--red-deep)}
.glow{position:fixed;top:0;left:0;width:140px;height:140px;border-radius:50%;pointer-events:none;z-index:9996;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(181,18,27,.14),transparent 70%);opacity:0}
.fx-canvas{position:fixed;inset:0;pointer-events:none;z-index:9997}
@media(hover:hover) and (pointer:fine){body{cursor:none}a,button,.button,.project-card,.capability-card,.marquee-item{cursor:none}}
@media(hover:none),(pointer:coarse){.cursor-dot,.cursor-ring,.glow,.fx-canvas{display:none}}

/* ============ 手机端补充优化 ============ */
@media (max-width: 760px) {
  .hero-overlay {
    background: linear-gradient(180deg, rgba(10, 11, 13, 0.78) 0%, rgba(10, 11, 13, 0.42) 38%, rgba(10, 11, 13, 0.32) 68%, rgba(10, 11, 13, 0.6) 100%);
  }
  .hero-bg {
    object-position: center 28%;
  }
  .hero h1 {
    font-size: clamp(34px, 10.5vw, 46px);
  }
  .resume-section {
    padding: 64px 0;
  }
  .resume-grid {
    gap: 32px;
  }
  .verify-modal-box {
    padding: 24px 18px 20px;
  }
  .verify-report-scroll {
    max-height: 46vh;
  }
}

/* ============ 个人简历 ============ */
.resume-section{padding:96px 0;background:#fff}
.resume-grid{display:grid;grid-template-columns:0.9fr 1.5fr;gap:64px;margin-top:56px}
.resume-aside .resume-block{margin-bottom:40px}
.resume-block h3,.resume-main-title{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--red);font-weight:700;margin-bottom:18px}
.resume-list{list-style:none}
.resume-list li{display:flex;justify-content:space-between;align-items:center;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px}
.resume-list li span{color:var(--muted)}
.resume-list li strong{font-weight:700}
.resume-edu-time{font-size:13px;color:var(--muted)}
.resume-edu strong{display:block;margin-top:8px;font-size:17px}
.resume-edu p{margin-top:4px;color:var(--muted);font-size:14px}
.resume-skills{display:flex;flex-wrap:wrap;gap:8px}
.resume-skills span{border:1px solid var(--line);border-radius:100px;padding:6px 14px;font-size:13px;color:var(--ink);transition:.2s}
.resume-skills span:hover{border-color:var(--red);color:var(--red)}
.resume-timeline{position:relative}
.resume-item{position:relative;padding-left:28px;padding-bottom:36px;border-left:2px solid var(--line)}
.resume-item:last-child{padding-bottom:0;border-left-color:transparent}
.resume-item::before{content:"";position:absolute;left:-7px;top:5px;width:12px;height:12px;background:var(--red);border-radius:50%;box-shadow:0 0 0 4px #fff}
.resume-year{font-size:13px;color:var(--red);font-weight:700}
.resume-item h4{margin-top:4px;font-size:19px;font-weight:700}
.resume-role{display:inline-block;margin-top:2px;font-size:13px;color:var(--muted)}
.resume-item ul{margin-top:12px;list-style:none}
.resume-item ul li{position:relative;padding-left:16px;margin-top:6px;font-size:14px;color:#404147;line-height:1.75}
.resume-item ul li strong{color:var(--red);font-weight:700}
.resume-item ul li strong::after,.resume-strengths li strong::after{content:"";display:inline-block;width:1px;height:11px;background:#c9cbd0;margin:0 9px;vertical-align:-1px}
.resume-name{font-size:32px;font-weight:800;letter-spacing:.01em;line-height:1.2}
.resume-title{margin-top:10px;font-size:15px;font-weight:600;color:var(--ink)}
.resume-meta{margin-top:5px;font-size:13px;color:var(--muted)}
.resume-bio{margin-top:4px;font-size:13px;line-height:1.85;color:#404147}
.resume-strengths{list-style:none}
.resume-strengths li{margin-top:9px;font-size:13px;line-height:1.7;color:#404147}
.resume-strengths li strong{color:var(--red);font-weight:700}
.resume-summary{margin-top:10px;padding:12px 14px;font-size:13px;line-height:1.75;color:#404147;background:#f7f7f8;border-left:3px solid var(--red);border-radius:4px}
.skill-groups{display:flex;flex-direction:column;gap:15px}
.skill-head{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--ink)}
.skill-icon{width:15px;height:15px;color:var(--red);flex-shrink:0;opacity:.85}
.skill-items{margin-top:4px;font-size:13px;color:#404147;line-height:1.7}
.resume-item ul li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;background:var(--red);border-radius:50%}
@media(max-width:760px){.resume-grid{grid-template-columns:1fr;gap:40px}}

/* ============ 学历在线验证 ============ */
.verify-link{display:inline-flex;align-items:center;gap:8px;margin-top:16px;padding:9px 18px;border:none;border-radius:7px;color:#fff;background:var(--red);font-size:14px;font-weight:700;cursor:pointer;font-family:var(--sans);transition:.25s;box-shadow:0 4px 14px -4px rgba(181,18,27,.45)}
.verify-link:hover{background:var(--red-deep);transform:translateY(-2px);box-shadow:0 8px 20px -6px rgba(181,18,27,.55)}
.verify-icon{display:inline-flex;align-items:center;justify-content:center;width:18px;height:18px;border-radius:50%;background:#fff;color:var(--red);font-size:11px;font-weight:800}
.verify-arrow{font-size:15px;transition:transform .25s}
.verify-link:hover .verify-arrow{transform:translate(2px,-2px)}
.verify-modal{position:fixed;inset:0;z-index:1000;display:grid;place-items:center;padding:24px;background:rgba(10,11,13,.62);backdrop-filter:blur(6px)}
.verify-modal[hidden]{display:none}
.verify-modal-box{position:relative;width:min(420px,100%);max-height:90vh;display:flex;flex-direction:column;padding:28px 26px 26px;text-align:center;background:#fff;border-radius:14px;box-shadow:var(--shadow);animation:qr-pop .32s cubic-bezier(.16,1,.3,1)}
.verify-modal-box h3{font-size:20px;font-weight:800}
.verify-report-scroll{max-height:52vh;overflow-y:auto;margin-top:18px;border:1px solid var(--line);border-radius:8px}
.verify-report-img{width:100%;display:block}
.verify-code{margin-top:16px;font-size:14px;color:var(--ink)}
.verify-code strong{color:var(--red);letter-spacing:.05em}
.verify-tip{margin-top:6px;font-size:12px;color:var(--muted)}
.verify-jump{margin-top:18px;width:100%;text-decoration:none}
.verify-modal-close{position:absolute;top:12px;right:14px;width:32px;height:32px;border:0;background:transparent;font-size:22px;line-height:1;color:var(--muted);cursor:pointer;border-radius:50%}
.verify-modal-close:hover{background:var(--soft);color:var(--ink)}