/* ============================================================
   ZPP PORTFOLIO — 黑白黄主调 + 荧光绿点缀
   ============================================================ */
:root {
  --black: #0b0b0b;
  --panel: #141414;
  --panel-2: #1b1b1b;
  --line: rgba(255, 255, 255, 0.09);
  --white: #f4f3ee;
  --grey: #9b9a94;
  --yellow: #FFE10D;
  --green: #26CE4B;
  --font-cn: "Noto Sans SC", "PingFang SC", sans-serif;
  --font-en: "Archivo", "Space Grotesk", sans-serif;
  --maxw: 1200px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  background: #000;
  color: var(--white);
  font-family: var(--font-cn);
  font-weight: 400;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, video { display: block; max-width: 100%; }
::selection { background: var(--yellow); color: var(--black); }

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 32px; }

/* ============ NAV ============ */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  display: flex; justify-content: space-between; align-items: center;
  padding: 18px 40px;
  transition: background .4s, backdrop-filter .4s, box-shadow .4s;
}
.nav.scrolled {
  background: rgba(11, 11, 11, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 var(--line);
}
.nav-logo {
  font-family: var(--font-en); font-weight: 900; font-size: 26px; letter-spacing: 1px;
  display: inline-flex; align-items: center;
}
.nav-logo i { color: var(--yellow); font-style: normal; }
.nav-logo-img { height: 34px; width: auto; display: block; }
.nav-links { display: flex; gap: 34px; align-items: center; }
.nav-links a {
  font-size: 14px; letter-spacing: 2px; color: var(--grey);
  transition: color .25s; position: relative;
}
.nav-links a:hover { color: var(--white); }
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0;
  background: var(--yellow); transition: width .3s;
}
.nav-links a:hover::after { width: 100%; }
.nav-links .nav-cta {
  color: var(--black); background: var(--yellow);
  padding: 8px 20px; border-radius: 999px; font-weight: 700; letter-spacing: 1px;
}
.nav-links .nav-cta::after { display: none; }
.nav-links .nav-cta:hover { background: var(--yellow); color: var(--black); }
.nav-menu-toggle { display: none; }

/* ============ HERO ============ */
.hero { position: relative; height: 100vh; min-height: 640px; overflow: hidden; }
.hero-media { position: absolute; inset: 0; }
.hero-media video {
  width: 100%; height: 100%; object-fit: cover;
  filter: contrast(1.1) saturate(1.12) brightness(0.94);
}
.hero-shade {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 90% 70% at 50% 45%, transparent 40%, rgba(11,11,11,.55) 100%),
    linear-gradient(180deg, rgba(11,11,11,.6) 0%, rgba(11,11,11,.42) 45%, rgba(11,11,11,.92) 100%);
}
.hero-inner {
  position: relative; z-index: 2; height: 100%;
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center; padding: 0 24px;
  transform: translateY(30px);   /* 整块内容下移，避免压住视频里的人物面部 */
}
.hero-title {
  font-family: var(--font-en); font-weight: 900; line-height: 0.95;
  display: flex; flex-direction: column; gap: 8px;
}
.hero-title .line {
  font-size: clamp(56px, 10vw, 128px); color: var(--white);
  text-shadow: 0 6px 40px rgba(0,0,0,.5); overflow: hidden;
}
.hero-title .line em { font-style: normal; color: var(--yellow); }
.hero-title .line.sub {
  font-size: clamp(20px, 3.6vw, 42px); color: var(--yellow); letter-spacing: 3px;
}
.hero-title .line span { display: inline-block; }

.hero-tag {
  margin-top: 30px; font-family: var(--font-cn); font-size: 16px; font-weight: 500;
  letter-spacing: 5px; color: var(--white);
}

/* ============ HERO 标题字符扰动 ============ */
.sc-ch { display: inline-block; transition: transform .16s ease; }
.sc-ch.sc-y, .sc-ch.sc-w, .sc-ch.sc-g { transform: translateY(-.07em) scale(1.05); }
.sc-ch.sc-y { color: var(--yellow); }
.sc-ch.sc-w { color: #fff; }
.sc-ch.sc-g { color: var(--green); }
.hero-tag i { color: var(--yellow); font-style: normal; }
.tag-rotate { position: relative; display: inline-block; height: 1.6em; min-width: 20em; vertical-align: top; }
.tag-line {
  position: absolute; left: 50%; top: 0; transform: translate(-50%, 12px);
  white-space: nowrap; opacity: 0; filter: blur(6px);
  transition: opacity .55s ease, transform .55s ease, filter .55s ease;
}
.tag-line.is-active { opacity: 1; transform: translate(-50%, 0); filter: blur(0); }
.tag-line.is-leaving { opacity: 0; transform: translate(-50%, -12px); filter: blur(6px); }
.hero-actions { margin-top: 44px; display: flex; gap: 18px; flex-wrap: wrap; justify-content: center; }
.hero-scroll {
  position: absolute; bottom: 28px; left: 50%; transform: translateX(-50%); z-index: 2;
  font-family: var(--font-en); font-size: 11px; letter-spacing: 4px; color: var(--grey);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
}
.hero-scroll span {
  width: 1px; height: 44px; background: linear-gradient(var(--yellow), transparent);
  animation: scrollPulse 1.8s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100% { transform: scaleY(1); opacity: 1; } 50% { transform: scaleY(.5); opacity: .4; } }

/* ============ BUTTONS ============ */
.btn {
  display: inline-block; font-weight: 700; font-size: 15px; letter-spacing: 2px;
  padding: 14px 38px; border-radius: 999px;
  transition: transform .25s, background .25s, box-shadow .25s, color .25s, border-color .25s;
}
.btn-yellow { background: var(--yellow); color: var(--black); box-shadow: 0 8px 30px rgba(255, 225, 13, .25); }
.btn-yellow:hover { background: var(--yellow); transform: translateY(-3px); box-shadow: 0 12px 36px rgba(255, 225, 13, .3); }
.btn-ghost { border: 1px solid rgba(255,255,255,.35); color: var(--white); }
.btn-ghost:hover { border-color: var(--yellow); color: var(--yellow); transform: translateY(-3px); }
.btn-big { padding: 18px 46px; font-size: 16px; }
/* 首屏按钮：线性镂空黄色，hover 黄圆从中心扩散填满（FlowButton 式，保持胶囊形） */
.btn-white {
  position: relative; overflow: hidden;
  background: transparent; color: var(--yellow);
  border: 1px solid var(--yellow);
}
.btn-white::before {
  content: ""; position: absolute; top: 50%; left: 50%;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--yellow);
  transform: translate(-50%, -50%) scale(0);
  transition: transform .8s cubic-bezier(.19, 1, .22, 1);
  z-index: 0;
}
.btn-white:hover { color: var(--black); transform: translateY(-3px); box-shadow: none; }
.btn-white:hover::before { transform: translate(-50%, -50%) scale(18); }
.btn-white:active { transform: scale(.96); }
.btn-white .btn-text {
  position: relative; z-index: 1;
  transform: translateX(-6px);
  transition: transform .8s cubic-bezier(.19, 1, .22, 1);
}
.btn-white:hover .btn-text { transform: translateX(4px); }
.btn-white .btn-arr { position: absolute; top: 50%; z-index: 1; margin-top: -8px; transition: all .8s cubic-bezier(.34, 1.56, .64, 1); }
.btn-white .btn-arr-l { left: -25%; opacity: 0; }
.btn-white .btn-arr-r { right: 16px; opacity: 1; }
.btn-white:hover .btn-arr-l { left: 16px; opacity: 1; }
.btn-white:hover .btn-arr-r { right: -25%; opacity: 0; }
@media (prefers-reduced-motion: reduce) {
  .btn-white::before, .btn-white .btn-text, .btn-white .btn-arr { transition: none; }
  .btn-white::before { transform: translate(-50%, -50%) scale(18); opacity: 0; }
  .btn-white:hover::before { opacity: 1; }
}

/* ============ MARQUEE ============ */
.marquee {
  background: var(--yellow); color: var(--black); overflow: hidden;
  padding: 13px 0;
  border-top: 2px solid var(--black); border-bottom: 2px solid var(--black);
  position: relative; z-index: 3;
}
.marquee-track { display: flex; white-space: nowrap; width: max-content; animation: marquee 26s linear infinite; }
.marquee-track span {
  font-family: var(--font-cn); font-weight: 700; font-size: 13px; letter-spacing: 3px; padding-right: 8px;
}
.marquee-track b { font-family: var(--font-en); font-weight: 500; font-size: 12px; letter-spacing: 2px; opacity: .62; padding-left: 8px; }
.marquee-track i { font-style: normal; font-size: 10px; color: var(--black); opacity: .45; padding: 0 18px; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ============ SECTIONS ============ */
.section { padding: 130px 0; position: relative; }
.eyebrow {
  font-family: var(--font-en); font-size: 13px; letter-spacing: 5px; color: var(--yellow);
  margin-bottom: 22px; display: flex; align-items: center; gap: 14px;
}
.eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--yellow); }
.eyebrow span { color: var(--grey); letter-spacing: 3px; }
.section-title {
  font-size: clamp(34px, 5vw, 60px); font-weight: 900; line-height: 1.25; margin-bottom: 64px;
}
.section-title em { font-style: normal; color: var(--yellow); }

/* ============ ABOUT ============ */
.about { position: relative; overflow: hidden; background: #000; }
/* 关于我底图：一张黑白工作照拼贴，压到极低透明度当肌理，
   不参与正文阅读，只提供「这是我做过的事」的现场感 */
.about-bg {
  position: absolute; left: 0; right: 0; top: -14%; height: 128%;
  background: center center / cover no-repeat;
  filter: grayscale(1) contrast(.88);
  will-change: transform;
  pointer-events: none; z-index: 0;
}
/* 底图懒加载：滚近 ABOUT 时才由 JS 加 .bg-on 触发下载 */
.about-bg.bg-on { background-image: url("assets/about-bg.jpg"); }
/* 遮罩：中段只透出约 9% 的影像，上下沿化进纯黑与前后模块接上，
   左右再压一层暗角，保证任何位置的白字都压得住 */
.about-bg::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, #000 0%, rgba(0,0,0,0) 22%, rgba(0,0,0,0) 78%, #000 100%),
    linear-gradient(90deg, rgba(0,0,0,.55) 0%, rgba(0,0,0,.14) 32%, rgba(0,0,0,.14) 68%, rgba(0,0,0,.55) 100%),
    rgba(0,0,0,.899);
}
.about .wrap { position: relative; z-index: 2; }
.about-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 80px; align-items: start; }
.about-lead p { font-size: 16px; color: #d8d7d1; margin-bottom: 20px; }
.about-lead p:first-child { color: var(--white); font-weight: 500; }
.about-lead .about-proof {
  color: var(--white); font-weight: 500;
  border-left: 3px solid var(--yellow); padding-left: 14px;
}
.about-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 30px; }
.about-tags span {
  font-size: 13px; padding: 7px 16px; border: 1px solid var(--line); border-radius: 999px; color: var(--grey);
  transition: border-color .25s, color .25s;
}
.about-tags span:hover { border-color: var(--yellow); color: var(--yellow); }

.timeline { position: relative; padding-left: 34px; }
.tl-line {
  position: absolute; left: 7px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(var(--yellow), var(--yellow)); transform-origin: top;
}
.tl-item { position: relative; padding-bottom: 36px; }
.tl-item:last-child { padding-bottom: 0; }
.tl-dot {
  position: absolute; left: -34px; top: 7px; width: 16px; height: 16px; border-radius: 50%;
  background: var(--black); border: 3px solid var(--yellow);
}
.tl-dot.dot-current { background: var(--yellow); box-shadow: 0 0 14px rgba(255,225,13,.5); }
.tl-period { font-family: var(--font-en); font-size: 13px; letter-spacing: 3px; color: var(--yellow); margin-bottom: 6px; }
.tl-item h3 { font-size: 22px; font-weight: 900; margin-bottom: 8px; }
.tl-item h3 span { display: block; font-size: 14px; font-weight: 400; color: var(--grey); margin-top: 3px; }
.tl-desc { font-size: 15px; color: #b9b8b2; }
.tl-tags { margin-top: 10px; font-size: 12.5px; letter-spacing: 1px; color: rgba(255,225,13,.58); }
.about-lead .hl { color: var(--yellow); font-weight: 700; }

/* STATS */
.stats {
  margin-top: 100px; display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
}
.stat { padding: 44px 24px; text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: none; }
.stat b {
  display: block; font-family: var(--font-en); font-weight: 900;
  font-size: clamp(44px, 5vw, 68px); color: var(--yellow); line-height: 1;
}
.stat span { display: block; margin-top: 12px; font-size: 13px; letter-spacing: 2px; color: var(--grey); }

/* ============ WORKS ============ */
/* 项目案例区：纯黑底，让封面吸色成为唯一的色彩来源 */
.works { background: #000; }
.section-head { margin-bottom: 64px; }
.section-main-title {
  font-family: var(--font-en); font-size: clamp(40px, 6vw, 72px); font-weight: 900;
  line-height: 1.05; letter-spacing: 4px; text-transform: uppercase; color: var(--white);
}
.section-subtitle {
  font-family: var(--font-en); font-size: 14px; letter-spacing: 5px; color: var(--yellow);
  margin-top: 12px; text-transform: uppercase;
}
.works-filters {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-bottom: 28px;
}
.filter-btn {
  font-family: var(--font-cn); font-size: 12px; letter-spacing: 1px;
  color: var(--grey); background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.1); border-radius: 999px;
  padding: 8px 18px; cursor: pointer;
  transition: color .25s, background .25s, border-color .25s, transform .25s;
}
.filter-btn:hover {
  color: var(--white); background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.2);
}
.filter-btn.active {
  color: #111; background: var(--yellow); border-color: var(--yellow);
  font-weight: 700;
}
.works-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
/* 卡片底色：--tint-bg 由 JS 从封面主色写成一个压暗的实色，
   整卡就是这一块干净的颜色，不叠雾、不加噪点，颜色只当背景。 */
.work-card {
  display: block;
  border: 1px solid rgba(255,255,255,.07);
  border-radius: 18px; overflow: hidden;
  background:
    linear-gradient(180deg, rgba(0,0,0,0) 40%, rgba(0,0,0,.35) 100%),
    var(--tint-bg, #101010);
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
/* 特异性要压过 .reveal.shown（它带 transform:none），否则悬停位移不生效 */
.works-grid .work-card:hover {
  transform: translateY(-2px);
  border-color: rgba(255,255,255,.17);
  box-shadow: 0 30px 60px -46px #000;
}
.work-cover {
  aspect-ratio: 16 / 9; position: relative; overflow: hidden;
  padding: 11px; background: transparent;
}
/* 封面窗口尺寸固定，图只在这个框里放大，多出来的部分被裁掉，留白不动 */
.work-cover-inner {
  position: relative; width: 100%; height: 100%;
  border-radius: 12px; overflow: hidden;
}
.work-cover-inner::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.09); pointer-events: none;
}
.work-cover-inner img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .5s ease-out;
}
.work-card:hover .work-cover-inner img { transform: scale(1.03); }
.work-info { padding: 10px 16px 18px; }
.work-info h3 { font-size: 16px; font-weight: 900; line-height: 1.3; letter-spacing: 1px; }
.work-info p {
  margin-top: 8px; font-size: 11.5px; line-height: 1.55;
  color: #b0afa9; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.work-tags {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px;
}
.work-tags span {
  font-size: 9.5px; font-weight: 500; letter-spacing: .5px;
  color: rgba(255,255,255,.45); background: rgba(255,255,255,.04);
  padding: 4px 8px; border-radius: 999px;
}
@media (max-width: 1200px) {
  .works-grid { grid-template-columns: repeat(3, 1fr); gap: 16px; }
}
@media (max-width: 900px) {
  .works-grid { grid-template-columns: repeat(2, 1fr); gap: 14px; }
  .work-info { padding: 8px 14px 16px; }
  .work-info h3 { font-size: 15px; }
}
@media (max-width: 520px) {
  .works-grid { grid-template-columns: 1fr; gap: 14px; }
}

.works-more { text-align: center; margin-top: 52px; position: relative; }
.works-all-btn { font-size: 13px; letter-spacing: 2px; padding: 14px 34px; background: transparent; }
.works-all-btn span { display: inline-block; }

/* ============ WORK DETAIL MODAL ============ */
.work-modal {
  position: fixed; inset: 0; z-index: 200;
  display: flex; justify-content: center; align-items: flex-start;
  opacity: 0; pointer-events: none;
  transition: opacity .35s ease;
}
.work-modal.open { opacity: 1; pointer-events: auto; }
.work-modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(11, 11, 11, .92);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
}
.work-modal-panel {
  position: relative; z-index: 2;
  width: 100%; max-width: 980px; height: 100vh; margin: 0 auto;
  background: var(--black);
  border-left: 1px solid var(--line); border-right: 1px solid var(--line);
  display: flex; flex-direction: column;
  transform: translateY(40px);
  transition: transform .4s cubic-bezier(.2,.7,.3,1);
}
.work-modal.open .work-modal-panel { transform: translateY(0); }
.work-modal-scroll {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.15) rgba(255,255,255,0.04);
}
.work-modal-scroll::-webkit-scrollbar { width: 6px; }
.work-modal-scroll::-webkit-scrollbar-track { background: rgba(255,255,255,0.04); }
.work-modal-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
.work-modal-scroll::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.28); }
.work-modal-close {
  position: absolute; top: 18px; right: 18px; z-index: 10;
  width: 44px; height: 44px;
  background: transparent; border: none;
  color: var(--yellow); font-size: 32px; line-height: 1;
  cursor: pointer; transition: transform .25s, color .25s;
  display: flex; align-items: center; justify-content: center;
}
.work-modal-close:hover { color: #fff; transform: scale(1.12); }
.work-modal-header { padding: 72px 40px 36px; border-bottom: 1px solid var(--line); }
.work-modal-eyebrow {
  font-family: var(--font-base); font-size: 13px; letter-spacing: 2px;
  color: var(--yellow); margin-bottom: 10px;
}
.work-modal-title { font-size: clamp(28px, 5vw, 46px); font-weight: 900; line-height: 1.15; }
.work-modal-desc { margin-top: 14px; font-size: 15px; line-height: 1.7; color: #b0afa9; max-width: 860px; }
.work-modal-desc p { margin: 0 0 1em 0; }
.work-modal-desc p:last-child { margin-bottom: 0; }
.work-modal-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.work-modal-tags span {
  font-size: 11px; letter-spacing: .5px; padding: 5px 12px; border-radius: 999px;
  background: rgba(255,255,255,.06); color: var(--grey);
}
.work-modal-body { padding: 8px 40px 40px; }
.work-modal-body img {
  width: 100%; display: block; border-radius: 14px; margin-top: 24px;
  background: rgba(255,255,255,.04);
}
.work-modal-footer {
  position: sticky; bottom: 0;
  padding: 18px 40px; background: rgba(11,11,11,.88);
  border-top: 1px solid var(--line);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  display: flex; justify-content: space-between; align-items: center;
}
.work-modal-footer.nav-hidden { justify-content: center; }
.work-modal-nav, .work-modal-back {
  font-family: var(--font-base); font-size: 13px; letter-spacing: 2px;
  background: transparent; border: none; color: var(--white); cursor: pointer;
  padding: 10px 0; transition: color .25s;
}
.work-modal-nav:hover, .work-modal-back:hover { color: var(--yellow); }
.work-modal-nav:disabled { color: var(--grey); cursor: not-allowed; }
.work-modal-back { color: var(--grey); }

@media (max-width: 768px) {
  .work-modal-panel { border: none; }
  .work-modal-header { padding: 62px 20px 28px; }
  .work-modal-body { padding: 8px 20px 28px; }
  .work-modal-footer { padding: 14px 20px; }
  .work-modal-close { top: 10px; right: 10px; width: 40px; height: 40px; font-size: 28px; }
  .work-modal-nav { font-size: 12px; letter-spacing: 1px; }
  .work-modal-back { font-size: 12px; letter-spacing: 1px; }
  .work-modal-title { font-size: 26px; }
  .works-more { margin-top: 42px; }
  .works-filters { gap: 8px; margin-bottom: 22px; }
  .filter-btn { font-size: 11px; padding: 7px 14px; }
  /* 印章：移动端单列布局文字密，全部隐藏，避免压字 */
  .stamp { display: none !important; }
}

/* ============ BEYOND DESIGN ============ */
.beyond { background: #000; }
.beyond .section-head { margin-bottom: 48px; }
.beyond-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.beyond-card {
  position: relative; min-height: 242px; overflow: hidden; border-radius: 14px;
  background: var(--yellow); color: #000;
  display: flex; align-items: stretch;
  transition: transform .3s ease, box-shadow .3s ease;
}
.beyond-card:hover { transform: translateY(-2px); box-shadow: 0 18px 38px -28px rgba(255,225,13,.55); }
.beyond-copy { position: relative; z-index: 2; width: 57%; padding: 18px 12px 18px 14px; display: flex; flex-direction: column; align-items: flex-start; }
.beyond-copy h3 { font-family: var(--font-en); font-size: clamp(29px, 3vw, 43px); line-height: .95; letter-spacing: 1px; font-weight: 900; margin-bottom: 9px; }
.beyond-copy p { max-width: 175px; font-size: 13px; line-height: 1.65; font-weight: 500; }
.beyond-cta { margin-top: auto; display: inline-flex; align-items: center; padding: 8px 18px; border-radius: 999px; background: var(--green); font-family: var(--font-cn); font-size: 12px; letter-spacing: 1px; white-space: nowrap; }
.beyond-card img { position: absolute; z-index: 1; right: -3%; bottom: -9%; width: 57%; height: 88%; object-fit: contain; object-position: right bottom; transition: transform .5s cubic-bezier(.2,.7,.3,1); }
.beyond-card:hover img { transform: scale(1.035); }

/* ============ VISUAL LAB ============ */
.visual-lab { position: relative; background: var(--yellow); color: #111; padding: 120px 0 130px; overflow: hidden; }
.vl-wrap { position: relative; z-index: 2; }
.visual-lab .section-main-title { color: #111; }
.vl-subtitle { color: #111; }

/* 背景装饰大字：同色系深一号黄，滚动时按各自速度横向跟踪 */
.vl-bgwords { position: absolute; inset: 0; z-index: 1; pointer-events: none; }
.vl-word {
  position: absolute; font-family: var(--font-en); font-weight: 900;
  line-height: 1; letter-spacing: 2px;
  color: #FFC708; white-space: nowrap; will-change: transform;
}
.vl-w1 { top: 3%; left: 47%; font-size: clamp(80px, 12vw, 180px); }
.vl-w2 { top: 34%; right: 6%; font-size: clamp(44px, 6.5vw, 96px); }
.vl-w3 { top: 52%; left: -6%; font-size: clamp(88px, 13vw, 200px); }
.vl-w4 { bottom: 2%; right: 10%; font-size: clamp(72px, 10.5vw, 160px); }
.vl-w5 { top: 58%; right: 5%; font-size: clamp(36px, 5vw, 72px); }

/* 播放器 */
.vl-player {
  position: relative; width: min(780px, 100%); margin: 0 auto;
  aspect-ratio: 16 / 9; border-radius: 14px; overflow: hidden;
  background: #111;
}
.vl-player video { width: 100%; height: 100%; object-fit: cover; display: block; }
.vl-progress { position: absolute; left: 12px; right: 12px; bottom: 10px; display: flex; gap: 6px; z-index: 3; }
.vl-progress:empty { display: none; }
.vl-seg { flex: 1; height: 3px; border-radius: 2px; background: rgba(255,255,255,.3); overflow: hidden; }
.vl-seg i { display: block; height: 100%; width: 0; background: var(--yellow); }
.vl-seg.done i { width: 100%; }

@media (max-width: 768px) {
  .visual-lab { padding: 72px 0 80px; }
  .vl-w1 { top: 2%; left: 30%; font-size: clamp(64px, 20vw, 110px); }
  .vl-w2 { top: 30%; right: -10%; font-size: clamp(34px, 11vw, 60px); }
  .vl-w3 { top: 62%; left: -14%; font-size: clamp(70px, 22vw, 120px); }
  .vl-w4 { bottom: 3%; right: -8%; font-size: clamp(56px, 17vw, 96px); }
  .vl-w5 { top: 72%; right: -4%; font-size: clamp(28px, 9vw, 48px); }
  .vl-player { border-radius: 10px; }
}

/* ============ CONTACT ============ */
.contact { background: #000; color: var(--white); padding: 112px 0 118px; overflow: hidden; }
.contact-content { position: relative; }
.contact-head { margin-bottom: clamp(64px, 8vw, 110px); }
.contact-links { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: clamp(18px, 2.4vw, 38px); max-width: 1080px; margin: 0 auto; }
.contact-link { position: relative; overflow: hidden; min-height: 58px; display: inline-flex; align-items: center; justify-content: center; gap: 11px; border: 1.5px solid rgba(255,255,255,.86); border-radius: 999px; color: var(--white); font-family: var(--font-en); font-size: clamp(16px, 1.7vw, 24px); text-decoration: none; transition: color .3s, border-color .3s, transform .3s cubic-bezier(.2,.7,.3,1); }
.contact-link::before { content: ""; position: absolute; top: 50%; left: 50%; width: 10px; height: 10px; border-radius: 50%; background: var(--yellow); transform: translate(-50%, -50%) scale(0); transition: transform .7s cubic-bezier(.19, 1, .22, 1); z-index: 0; }
.contact-link > * { position: relative; z-index: 1; }
.contact-link:hover { color: #000; border-color: var(--yellow); transform: translateY(-3px); }
.contact-link:hover::before { transform: translate(-50%, -50%) scale(24); }
.contact-icon { width: 22px; height: 22px; flex: 0 0 22px; fill: none; stroke: currentColor; stroke-width: 1.7; stroke-linecap: round; stroke-linejoin: round; }
@media (prefers-reduced-motion: reduce) { .contact-link, .contact-link::before { transition: none; } .contact-link::before { transform: translate(-50%,-50%) scale(24); opacity: 0; } .contact-link:hover::before { opacity: 1; } }

/* ============ BACK TO TOP ============ */
.backtop {
  position: fixed; right: clamp(16px, 3vw, 44px); bottom: clamp(16px, 3vw, 40px); z-index: 90;
  width: clamp(64px, 7vw, 96px); padding: 0; border: 0; background: none; cursor: pointer;
  opacity: 0; visibility: hidden; transform: translateY(18px);
  transition: opacity .4s ease, transform .4s cubic-bezier(.2,.7,.3,1), visibility .4s;
}
.backtop.show { opacity: 1; visibility: visible; transform: translateY(0); }
.backtop img { display: block; width: 100%; height: auto; animation: backtopFloat 3.2s ease-in-out infinite; }
.backtop:hover img { animation: none; transform: translateY(-8px); transition: transform .35s cubic-bezier(.34,1.56,.64,1); }
.backtop img { transition: transform .35s cubic-bezier(.34,1.56,.64,1); }
@keyframes backtopFloat { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }
@media (prefers-reduced-motion: reduce) {
  .backtop, .backtop img { transition: none; animation: none; }
}

/* ============ 键盘焦点可见性 ============ */
a:focus-visible, button:focus-visible, [tabindex]:focus-visible {
  outline: 2px solid var(--yellow); outline-offset: 3px; border-radius: 4px;
}

/* ============ WECHAT QR 浮层 ============ */
.wechat-pop { position: fixed; inset: 0; z-index: 10020; display: none; }
.wechat-pop.open { display: block; }
.wechat-pop-backdrop { position: absolute; inset: 0; background: rgba(0,0,0,.72); }
.wechat-pop-card {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%,-50%) scale(.92);
  background: #111; border: 1px solid rgba(255,255,255,.14); border-radius: 20px;
  padding: 26px 26px 18px; text-align: center;
  opacity: 0; transition: opacity .25s ease, transform .3s cubic-bezier(.2,.7,.3,1);
}
.wechat-pop.open .wechat-pop-card { opacity: 1; transform: translate(-50%,-50%) scale(1); }
.wechat-pop-card img { width: 220px; height: auto; border-radius: 10px; display: block; }
.wechat-pop-card p { margin: 14px 0 0; font-size: 13px; color: var(--grey); letter-spacing: 2px; }
.wechat-pop-close {
  position: absolute; top: -15px; right: -15px; width: 32px; height: 32px;
  background: #1a1a1a; border: 1px solid rgba(255,255,255,.2); border-radius: 50%;
  color: var(--grey); font-size: 18px; line-height: 1;
  cursor: pointer; transition: color .2s, border-color .2s, transform .2s;
}
.wechat-pop-close:hover { color: var(--yellow); border-color: var(--yellow); transform: rotate(90deg); }

/* ============ FOOTER ============ */
/* ---- FOOTER（NKD 式：链接组 + 黄色大横幅 + 版权行） ---- */
.footer { background: #000; }

/* NKD 式：左大字坐黑底（字高=色块高），右侧整条大色块，CITY 黑字一行在色块右端 */
.footer-band {
  display: flex; align-items: stretch; overflow: hidden;
  background: #000;
  height: clamp(43px, 5.4vw, 86px);
}
.fb-word {
  display: flex; align-items: center; height: 100%;
  padding: 0 clamp(4px, .7vw, 12px) 0 0;
}
.fb-word svg { height: 100%; display: block; }
.fb-word-text {
  font-family: var(--font-en); font-weight: 900; font-size: 100px; letter-spacing: -7px;
}
#zppStrips image { opacity: 0; transition: opacity .22s ease-out; }
#zppStrips image.on { opacity: 1; }
#zppStrips image.off { opacity: 0; transition: opacity .45s ease-in; }
.fb-block {
  flex: 1; min-width: 0; background: var(--yellow);
  display: flex; align-items: flex-start; justify-content: flex-end;
  padding: clamp(14px, 1.8vw, 28px) clamp(16px, 2.5vw, 40px) 0 0;
  position: relative; overflow: hidden;
}
.fb-city {
  font-family: var(--font-en); font-weight: 900; line-height: .9;
  font-size: clamp(18px, 3.2vw, 48px); letter-spacing: 0;
  color: #111; text-align: right; white-space: nowrap;
  position: relative; z-index: 2; transform: translate(0, -4px);
}
/* 光标经过时浮现的图片条（NKD 横幅动效） */
.fb-strip {
  position: absolute; top: 0; bottom: 0; width: clamp(64px, 8vw, 120px);
  background: url("assets/cap-bg.jpg") 0 50% / auto 100% no-repeat;
  opacity: 0; transform: scaleY(.55);
  transition: opacity .22s ease-out, transform .3s cubic-bezier(.2,.7,.3,1);
  pointer-events: none; z-index: 1;
}
.fb-strip.on { opacity: 1; transform: scaleY(1); }
.fb-strip.off { opacity: 0; transition: opacity .45s ease-in; }

.footer-bottom {
  padding-top: 30px; padding-bottom: 26px; display: flex; justify-content: center;
  align-items: center; flex-wrap: wrap; gap: 10px;
}
.footer-bottom span { font-size: 12px; color: var(--grey); letter-spacing: 1px; }
.footer-bottom .heart { color: #ff4d4f; font-style: normal; }

/* ============ REVEAL ============ */
.reveal { opacity: 0; transform: translateY(36px); }
.no-js .reveal, .reveal.shown { opacity: 1; transform: none; }

/* ============ RESPONSIVE ============ */
@media (max-width: 1024px) {
  .about-grid { grid-template-columns: 1fr; gap: 56px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: none; }
  .stat:nth-child(1), .stat:nth-child(2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 768px) {
  .wrap { padding: 0 20px; }
  .nav { padding: 14px 20px; }
  .nav-logo-img { height: 28px; }
  .nav-links { gap: 18px; }
  .nav-links a { font-size: 12px; letter-spacing: 1px; }
  .section { padding: 90px 0; }
  .works-grid { grid-template-columns: 1fr; }
  .beyond-grid { grid-template-columns: 1fr; gap: 16px; }
  .beyond-card { min-height: 210px; }
  .beyond-copy { width: 58%; padding: 18px 12px 18px 16px; }
  .beyond-card img { width: 57%; height: 92%; right: -2%; bottom: -10%; }
  .beyond-copy p { max-width: 188px; font-size: 14px; line-height: 1.7; }
  .beyond-cta { font-size: 11px; padding: 7px 14px; }
  .section-head { margin-bottom: 36px; }
  .section-main-title { letter-spacing: 2px; }
  .section-subtitle { font-size: 12px; margin-top: 8px; }
  .contact { padding: 72px 0 84px; }
  .contact-head { margin-bottom: 64px; }
  .contact-links { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px 12px; }
  .contact-link { min-height: 48px; gap: 7px; font-size: 15px; }
  .contact-icon { width: 18px; height: 18px; flex-basis: 18px; }
  .hero-title .line.sub { font-size: clamp(14px, 3.8vw, 42px); letter-spacing: 1px; }
  .hero-tag { letter-spacing: 6px; font-size: 13px; }
  .hero-inner { transform: translateY(50px); }   /* 移动端首屏更高，再往下让一点 */
  .contact-row .btn { width: 100%; text-align: center; }
  .footer-band { height: clamp(54px, 14vw, 86px); }
  .fb-word { padding: 0 3px 0 0; }
  .fb-block { padding: 8px 8px 0 0; }
  .fb-city { font-size: clamp(18px, 5vw, 32px); transform: translateY(-2px); }
  .footer-bottom { justify-content: center; text-align: center; padding-top: 22px; padding-bottom: 30px; }
  .footer-bottom span { font-size: 10px; letter-spacing: .5px; }

  /* ---- 关于我：移动端字号层级 ---- */
  .eyebrow { font-size: 12px; letter-spacing: 4px; margin-bottom: 16px; }
  .section-title { font-size: 30px; line-height: 1.3; margin-bottom: 36px; }
  .about-grid { gap: 44px; }
  .about-lead p { font-size: 16px; line-height: 1.75; margin-bottom: 16px; }
  .about-lead .about-proof { margin-top: 22px; }
  .timeline { padding-left: 28px; }
  .tl-dot { left: -28px; width: 14px; height: 14px; }
  .tl-item { padding-bottom: 30px; }
  .tl-period { font-size: 11.5px; letter-spacing: 2px; }
  .tl-item h3 { font-size: 18px; margin-bottom: 6px; }
  .tl-item h3 span { font-size: 12px; margin-top: 2px; }
  .tl-desc { font-size: 13.5px; line-height: 1.7; }
  .tl-tags { font-size: 11.5px; margin-top: 8px; }
  .stats { margin-top: 60px; }
  .stat { padding: 30px 10px; }
  .stat b { font-size: clamp(38px, 11vw, 52px); }
  .stat span { font-size: 12px; letter-spacing: 1px; margin-top: 10px; }
}
@media (max-width: 640px) {
  .nav-links { 
    position: absolute; top: calc(100% + 10px); right: 20px;
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    width: 148px; padding: 8px 0;
    background: rgba(11,11,11,.96); border: 1px solid var(--line);
    opacity: 0; visibility: hidden; transform: translateY(-8px);
    transition: opacity .25s, transform .25s, visibility .25s;
  }
  .nav.nav-open .nav-links { opacity: 1; visibility: visible; transform: translateY(0); }
  .nav-links a, .nav-links a:not(.nav-cta) { display: block; padding: 12px 18px; font-size: 13px; letter-spacing: 1px; }
  .nav-links .nav-cta { margin: 6px 10px; padding: 10px 12px; text-align: center; }
  .nav-links a::after { display: none; }
  .nav-menu-toggle {
    display: inline-flex; flex-direction: column; justify-content: center; gap: 5px;
    width: 38px; height: 38px; padding: 9px 8px;
    background: transparent; border: 1px solid var(--line); color: var(--white); cursor: pointer;
  }
  .nav-menu-toggle span { display: block; width: 20px; height: 1px; background: currentColor; transition: transform .25s; }
  .nav.nav-open .nav-menu-toggle span:first-child { transform: translateY(3px) rotate(45deg); }
  .nav.nav-open .nav-menu-toggle span:last-child { transform: translateY(-3px) rotate(-45deg); }
  .stats { grid-template-columns: 1fr 1fr; }
  .hero-actions .btn { width: 100%; text-align: center; }
}