/* =============================================
   🎨 火元素配色系统 — 修改颜色在这里
   ============================================= */
:root {
  --bg:       #0C0905;   /* 主背景 - 深熔岩暗棕 */
  --surface:  #171009;   /* 卡片底色 */
  --surface2: #221810;   /* hover 底色 */
  --fire:     #FF5E00;   /* 主色 - 烈焰橙 */
  --ember:    #FF8C00;   /* 辅色 - 琥珀橙 */
  --glow:     #FFA84C;   /* 发光橙 */
  --white:    #FFF4EC;   /* 暖白 / 文字 */
  --muted:    #7A6555;   /* 次要文字 */
  --border:   #2C1E14;   /* 边框线 */

  --font-display: 'Bebas Neue', sans-serif;
  --font-body:    'Outfit', sans-serif;
  --font-mono:    'Space Mono', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--white);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}
::selection { background: var(--fire); color: var(--white); }
img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* ── CUSTOM CURSOR ── */
.cursor {
  width: 10px; height: 10px;
  background: var(--fire);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9999;
  mix-blend-mode: screen;
  transition: transform .12s ease;
}
.cursor-ring {
  width: 32px; height: 32px;
  border: 1px solid rgba(255,94,0,.35);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9998;
  transition: transform .25s ease, opacity .2s;
}

/* ══════════════════════════════════════
   NAV
══════════════════════════════════════ */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 200;
  padding: 1.2rem 4rem;
  display: flex; justify-content: space-between; align-items: center;
  background: rgba(12,9,5,.85);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  transition: transform .3s ease;
}
.nav-logo {
  font-family: var(--font-display);
  font-size: 1.65rem;
  letter-spacing: .1em;
  color: var(--white);
}
/* ✏️ 修改品牌名颜色 */
.nav-logo span { color: var(--fire); }

.nav-links { display: flex; gap: 2.5rem; list-style: none; align-items: center; }
.nav-links a {
  font-size: .78rem; font-weight: 500;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--muted); transition: color .2s;
}
.nav-links a:hover { color: var(--white); }
.nav-cta {
  background: var(--fire) !important;
  color: var(--white) !important;
  padding: .45rem 1.25rem !important;
  border-radius: 3px;
  font-family: var(--font-mono) !important;
  font-size: .7rem !important;
  letter-spacing: .08em !important;
  transition: opacity .2s !important;
}
.nav-cta:hover { opacity: .85 !important; }

/* ══════════════════════════════════════
   HERO 首页
══════════════════════════════════════ */
#home {
  min-height: 100vh;
  display: flex; flex-direction: column; justify-content: flex-end;
  padding: 0 4rem 5.5rem;
  position: relative; overflow: hidden;
}
.hero-fire-bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(255,94,0,.13) 0%, transparent 65%),
    radial-gradient(ellipse 40% 40% at 20% 80%, rgba(255,140,0,.08) 0%, transparent 60%);
}
.hero-grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255,94,0,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,94,0,.04) 1px, transparent 1px);
  background-size: 64px 64px;
}
.hero-tag {
  font-family: var(--font-mono);
  font-size: .7rem; color: var(--fire);
  letter-spacing: .22em; text-transform: uppercase;
  display: flex; align-items: center; gap: .8rem;
  margin-bottom: 1.8rem; position: relative; z-index: 1;
}
.hero-tag::before {
  content: ''; display: block;
  width: 28px; height: 1px; background: var(--fire);
}
/* ✏️ 修改主标题文字 */
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(4.5rem, 11vw, 10rem);
  line-height: .9; letter-spacing: -.01em;
  position: relative; z-index: 1;
}
.hero-title .fire    { color: var(--fire); }
.hero-title .ember   { color: var(--ember); }
.hero-title .outline {
  -webkit-text-stroke: 1.5px rgba(255,244,236,.25);
  color: transparent;
}

.hero-bottom {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-top: 3rem; position: relative; z-index: 1;
}
/* ✏️ 修改副标题文字 */
.hero-desc {
  max-width: 400px; font-size: .95rem;
  color: var(--muted); line-height: 1.8;
}
.hero-desc strong { color: var(--white); font-weight: 500; }

.hero-stats { display: flex; gap: 3rem; }
.stat-item { text-align: right; }
/* ✏️ 修改统计数字 */
.stat-number {
  font-family: var(--font-display);
  font-size: 3rem; color: var(--fire);
  line-height: 1; display: block;
}
.stat-label {
  font-size: .68rem; color: var(--muted);
  letter-spacing: .14em; text-transform: uppercase;
  font-family: var(--font-mono);
}

.hero-scroll {
  position: absolute; bottom: 2rem; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: .5rem;
  opacity: .3; pointer-events: none;
}
.hero-scroll span { font-family: var(--font-mono); font-size: .6rem; letter-spacing: .2em; }
.scroll-line {
  width: 1px; height: 38px;
  background: linear-gradient(to bottom, var(--fire), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%,100% { opacity: .3 } 50% { opacity: 1 }
}

/* ══════════════════════════════════════
   MARQUEE 跑马灯
══════════════════════════════════════ */
.marquee-wrap {
  overflow: hidden; padding: .9rem 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}
.marquee-track {
  display: flex; white-space: nowrap;
  animation: marqueeRun 22s linear infinite;
}
.marquee-item {
  font-family: var(--font-display);
  font-size: 1rem; letter-spacing: .14em;
  color: var(--muted); padding: 0 2.5rem;
  display: flex; align-items: center; gap: 1.5rem;
}
/* ✏️ 修改跑马灯文字颜色 */
.marquee-item .dot { color: var(--fire); font-size: .55rem; }
@keyframes marqueeRun {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ══════════════════════════════════════
   SECTION BASE
══════════════════════════════════════ */
section.page-section { padding: 8rem 4rem; }
.sec-label {
  font-family: var(--font-mono); font-size: .68rem;
  color: var(--fire); letter-spacing: .22em; text-transform: uppercase;
  display: flex; align-items: center; gap: .75rem;
  margin-bottom: 1.5rem;
}
.sec-label::before {
  content: ''; display: block;
  width: 22px; height: 1px; background: var(--fire);
}
.sec-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5.5rem);
  line-height: .92; letter-spacing: .01em;
  color: var(--white); margin-bottom: 3rem;
}
.sec-title .fire    { color: var(--fire); }
.sec-title .ember   { color: var(--ember); }
.sec-title .outline {
  -webkit-text-stroke: 1px rgba(255,244,236,.3);
  color: transparent;
}

/* ══════════════════════════════════════
   SERVICES 服务
══════════════════════════════════════ */
#services { background: var(--bg); }
.services-header {
  display: flex; justify-content: space-between; align-items: flex-end;
  margin-bottom: 4rem;
}
/* ✏️ 修改服务简介 */
.services-intro {
  max-width: 340px; font-size: .9rem;
  color: var(--muted); line-height: 1.8;
}

.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px; background: var(--border);
  border: 1px solid var(--border);
}
.svc-card {
  background: var(--bg); padding: 2.5rem 2rem;
  position: relative; overflow: hidden;
  transition: background .3s; cursor: default;
}
.svc-card:hover { background: var(--surface2); }
.svc-card::after {
  content: ''; position: absolute;
  bottom: 0; left: 0; width: 0; height: 2px;
  background: linear-gradient(90deg, var(--fire), var(--ember));
  transition: width .4s ease;
}
.svc-card:hover::after { width: 100%; }

.svc-num {
  font-family: var(--font-mono); font-size: .62rem;
  color: var(--fire); letter-spacing: .2em; opacity: .7;
  margin-bottom: 1.8rem;
}
.svc-icon { font-size: 2rem; margin-bottom: 1rem; display: block; }
/* ✏️ 修改服务标题 */
.svc-title {
  font-family: var(--font-display);
  font-size: 1.55rem; letter-spacing: .04em;
  color: var(--white); margin-bottom: .3rem; line-height: 1.1;
}
.svc-en {
  font-size: .68rem; color: var(--muted);
  letter-spacing: .12em; text-transform: uppercase;
  font-family: var(--font-mono); margin-bottom: 1rem;
}
/* ✏️ 修改服务描述 */
.svc-desc { font-size: .88rem; color: var(--muted); line-height: 1.75; }
.svc-tag {
  display: inline-block; margin-top: 1.2rem;
  font-family: var(--font-mono); font-size: .62rem;
  color: var(--ember); border: 1px solid rgba(255,140,0,.3);
  padding: .22rem .6rem; border-radius: 2px; letter-spacing: .1em;
}
/* CTA card inside grid */
.svc-cta-card {
  background: var(--surface) !important;
  display: flex; flex-direction: column;
  justify-content: center; align-items: center;
  text-align: center; gap: 1.5rem; padding: 3rem 2rem;
}
.svc-cta-card p {
  font-family: var(--font-display);
  font-size: 1.5rem; color: var(--muted);
  letter-spacing: .04em; line-height: 1.3;
}
.svc-cta-card p span { color: var(--white); }

/* ══════════════════════════════════════
   PORTFOLIO 作品
══════════════════════════════════════ */
#portfolio { background: var(--surface); }
.port-tabs {
  display: flex; gap: 0;
  border: 1px solid var(--border);
  width: fit-content; margin-bottom: 3.5rem;
  overflow: hidden; border-radius: 3px;
}
.tab-btn {
  font-family: var(--font-mono); font-size: .72rem;
  letter-spacing: .12em; text-transform: uppercase;
  padding: .65rem 1.8rem;
  background: transparent; color: var(--muted);
  border: none; border-right: 1px solid var(--border);
  cursor: pointer; transition: background .2s, color .2s;
}
.tab-btn:last-child { border-right: none; }
.tab-btn.active { background: var(--fire); color: var(--white); }
.tab-btn:hover:not(.active) { background: var(--surface2); color: var(--white); }

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ═══════════════════════════════════════════════════════
   🎬 VIDEO SHOWCASE — Clean Mixed Layout
═══════════════════════════════════════════════════════ */

/* Section label */
.vsec-label {
  font-family: var(--font-mono);
  font-size: .68rem; letter-spacing: .2em;
  color: var(--fire); text-transform: uppercase;
  margin-bottom: 1rem;
  display: flex; align-items: center; gap: .6rem;
}
.vsec-label::before {
  content:''; display:block;
  width:20px; height:1px; background:var(--fire);
}

/* ── 16:9 grid: always 3 equal columns ── */
.land-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
}
.land-card {
  position: relative;
  border-radius: 8px; overflow: hidden;
  background: #000;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color .2s, transform .22s, box-shadow .22s;
}
.land-card:hover {
  border-color: var(--fire);
  transform: translateY(-4px);
  box-shadow: 0 8px 28px rgba(255,94,0,0.2);
}
.land-card video {
  width: 100%; aspect-ratio: 16/9;
  display: block; background: #000;
  pointer-events: none;
}

/* Gradient meta overlay */
.v-meta-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 2.5rem 1rem .85rem;
  background: linear-gradient(to top, rgba(0,0,0,.9) 0%, transparent 100%);
  pointer-events: none;
}
.v-meta-overlay .v-tag {
  display: inline-block;
  background: var(--fire); color: #fff;
  font-family: var(--font-mono); font-size: .58rem;
  letter-spacing: .14em; padding: .18rem .6rem;
  border-radius: 2px; margin-bottom: .4rem;
  text-transform: uppercase;
}
.v-meta-overlay h4 {
  font-family: var(--font-display);
  font-size: .95rem; color: #fff;
  letter-spacing: .04em; margin: 0;
}

/* Play icon overlay */
.v-play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,94,0,.85);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; transition: opacity .18s;
  pointer-events: none;
}
.v-play-btn svg { width: 16px; height: 16px; fill: #fff; }
.land-card:hover .v-play-btn,
.port-card:hover .v-play-btn { opacity: 1; }

/* ── 9:16 portrait horizontal scroll ── */
.vsec-header {
  display: flex; align-items: center;
  justify-content: space-between;
  margin-bottom: .9rem;
}
.port-arrows { display: flex; gap: .4rem; }
.port-arrow {
  width: 32px; height: 32px; border-radius: 4px;
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--white); font-size: 1.1rem;
  cursor: pointer; display: flex;
  align-items: center; justify-content: center;
  transition: background .2s, border-color .2s;
  line-height: 1;
}
.port-arrow:hover { background: var(--fire); border-color: var(--fire); }

.port-scroll-wrap {
  overflow-x: auto; overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: var(--fire) var(--surface2);
  padding-bottom: .6rem;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
}
.port-scroll-wrap::-webkit-scrollbar { height: 3px; }
.port-scroll-wrap::-webkit-scrollbar-track { background: var(--surface2); border-radius: 2px; }
.port-scroll-wrap::-webkit-scrollbar-thumb { background: var(--fire); border-radius: 2px; }

.port-scroll {
  display: flex; gap: 1rem;
  width: max-content;
  padding: .25rem .25rem .25rem;
}

.port-card {
  flex: 0 0 auto;
  width: 180px;
  position: relative;
  border-radius: 10px; overflow: hidden;
  background: #000;
  border: 1px solid var(--border);
  cursor: pointer;
  scroll-snap-align: start;
  transition: border-color .2s, transform .22s, box-shadow .22s;
}
.port-card:hover {
  border-color: var(--fire);
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(255,94,0,0.18);
}
.port-card video {
  width: 100%; aspect-ratio: 9/16;
  display: block; background: #000;
  object-fit: cover; pointer-events: none;
}
.port-card .v-meta-overlay { padding: 3rem .8rem .8rem; }
.port-card .v-meta-overlay h4 { font-size: .78rem; }
.port-card .v-meta-overlay .v-tag { font-size: .54rem; }

/* ── Lightbox ── */
.vbox {
  display: none; position: fixed; inset: 0;
  z-index: 9999;
  background: rgba(0,0,0,.95);
  align-items: center; justify-content: center;
  padding: 1.5rem;
}
.vbox.open { display: flex; }
.vbox-inner {
  position: relative;
  max-width: 960px; width: 100%;
  max-height: 92vh;
  display: flex; flex-direction: column; align-items: center;
}
.vbox-inner video {
  width: 100%; max-height: 84vh;
  border-radius: 10px; background: #000; outline: none;
}
.vbox-close {
  position: absolute; top: -2.6rem; right: 0;
  background: none; border: none;
  color: rgba(255,255,255,.7); font-size: 2rem;
  cursor: pointer; line-height: 1;
  transition: color .2s;
}
.vbox-close:hover { color: var(--fire); }
.vbox-meta {
  margin-top: .75rem; text-align: center;
}
.vbox-meta .vbox-tag {
  font-family: var(--font-mono); font-size: .62rem;
  letter-spacing: .16em; color: var(--fire);
  text-transform: uppercase; margin-bottom: .25rem;
}
.vbox-meta h4 {
  font-family: var(--font-display);
  font-size: 1.1rem; color: var(--white);
  letter-spacing: .04em;
}

/* Responsive */
@media (max-width: 860px) {
  .land-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .land-grid { grid-template-columns: 1fr; }
  .port-card { width: 145px; }
}

/* ─── 设计图作品 ─── */
/* 📸 在下方 HTML 里替换 img src 路径即可 */
.design-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.25rem;
}
.design-item {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 4px; overflow: hidden;
  position: relative; cursor: pointer;
}
.design-item img {
  width: 100%; aspect-ratio: 4/3;
  object-fit: cover; display: block;
  transition: transform .4s ease;
  background: var(--surface2);
}
.design-item:hover img { transform: scale(1.04); }
.design-overlay {
  position: absolute; inset: 0;
  background: rgba(12,9,5,.82);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  opacity: 0; transition: opacity .3s;
  gap: .5rem;
}
.design-item:hover .design-overlay { opacity: 1; }
/* ✏️ 修改设计图标题 */
.design-overlay h4 {
  font-family: var(--font-display);
  font-size: 1.3rem; letter-spacing: .06em;
  color: var(--white);
}
.design-overlay span {
  font-size: .7rem; color: var(--fire);
  font-family: var(--font-mono); letter-spacing: .12em;
}
/* placeholder image */
.img-placeholder {
  width: 100%; aspect-ratio: 4/3;
  background: var(--surface2);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: .75rem;
}
.img-placeholder .ph-icon { font-size: 2rem; opacity: .35; }
.img-placeholder span { font-size: .72rem; color: var(--muted); font-family: var(--font-mono); }

/* ─── 落地页作品 ─── */
/* 🖥️ 在下方 HTML 里替换截图 img src 和预览链接 href 即可 */
.lp-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.lp-item {
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 4px; overflow: hidden;
}
.lp-browser {
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  padding: .5rem .75rem;
  display: flex; align-items: center; gap: .4rem;
}
.lp-dot {
  width: 7px; height: 7px; border-radius: 50%;
}
.lp-dot:nth-child(1) { background: #FF5F56; }
.lp-dot:nth-child(2) { background: #FFBD2E; }
.lp-dot:nth-child(3) { background: #27C93F; }
.lp-url {
  flex: 1; margin-left: .5rem;
  font-family: var(--font-mono); font-size: .62rem;
  color: var(--muted); letter-spacing: .04em;
  background: var(--bg); border-radius: 2px;
  padding: .2rem .6rem; border: 1px solid var(--border);
}
.lp-item img {
  width: 100%; aspect-ratio: 16/10; object-fit: cover;
  display: block; background: var(--surface);
}
.lp-meta {
  padding: 1rem 1.1rem;
  display: flex; justify-content: space-between; align-items: center;
}
/* ✏️ 修改落地页标题和链接 */
.lp-meta h4 {
  font-family: var(--font-display);
  font-size: 1.1rem; letter-spacing: .04em; color: var(--white);
}
.lp-preview {
  font-family: var(--font-mono); font-size: .65rem;
  color: var(--fire); letter-spacing: .1em; border: 1px solid rgba(255,94,0,.35);
  padding: .25rem .7rem; border-radius: 2px;
  transition: background .2s;
}
.lp-preview:hover { background: rgba(255,94,0,.15); }


/* ─── 落地页 iframe 展示 ─── */
#tab-lp { padding-top: 1rem; }
.lp-showcase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem 2rem;
}
.lp-phone-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}
.lp-phone {
  width: 100%;
  max-width: 220px;
  background: #111;
  border-radius: 28px;
  border: 2px solid rgba(255,94,0,.35);
  box-shadow: 0 0 0 6px #1a1a1a, 0 0 30px rgba(255,94,0,.15), 0 20px 50px rgba(0,0,0,.5);
  overflow: hidden;
  position: relative;
  aspect-ratio: 9/16;
}
/* 手机刘海 */
.lp-phone::before {
  content: '';
  position: absolute;
  top: 8px; left: 50%;
  transform: translateX(-50%);
  width: 55px; height: 6px;
  background: #222;
  border-radius: 99px;
  z-index: 10;
}
.lp-phone iframe {
  width: 375px;
  height: 812px;
  border: none;
  transform-origin: top left;
  transform: scale(calc(100% / 375px));
  pointer-events: none; /* 禁止在iframe内点击，防止直接跳走 */
}
.lp-phone-label {
  font-size: .75rem;
  letter-spacing: .1em;
  color: var(--muted);
  text-transform: uppercase;
  text-align: center;
}
.lp-phone-title {
  font-family: var(--font-display);
  font-size: 1rem;
  color: var(--white);
  text-align: center;
  margin-bottom: .2rem;
}
.lp-tag-row {
  display: flex; gap: .5rem; flex-wrap: wrap; justify-content: center;
}
.lp-style-tag {
  font-size: .6rem; letter-spacing: .08em;
  color: var(--fire); border: 1px solid rgba(255,94,0,.35);
  padding: .15rem .5rem; border-radius: 2px;
  font-family: var(--font-mono);
}
@media (max-width: 860px) {
  .lp-showcase-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem 1.5rem; }
}
@media (max-width: 540px) {
  .lp-showcase-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem 1rem; }
  .lp-phone { max-width: 150px; }
}

/* ─── 防下载保护 ─── */
#tab-lp {
  user-select: none;
  -webkit-user-select: none;
}

/* ══════════════════════════════════════
   PROCESS 流程
══════════════════════════════════════ */
#process { background: var(--bg); }
.process-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border);
  margin-top: 4rem;
}
.proc-step {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--border);
  position: relative;
}
.proc-step:last-child { border-right: none; }
.proc-num {
  font-family: var(--font-display);
  font-size: 4.5rem; color: var(--fire);
  text-shadow: 0 0 22px rgba(255,94,0,.28);
  line-height: 1; margin-bottom: 1.5rem;
  display: block; pointer-events: none;
}
/* ✏️ 修改流程标题和描述 */
.proc-title {
  font-family: var(--font-display);
  font-size: 1.35rem; letter-spacing: .04em;
  color: var(--white); margin-bottom: .75rem; line-height: 1.1;
}
.proc-desc { font-size: .85rem; color: var(--muted); line-height: 1.75; }
.proc-step::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px; background: transparent;
  transition: background .3s;
}
.proc-step:hover::before {
  background: linear-gradient(90deg, var(--fire), var(--ember));
}

/* ══════════════════════════════════════
   WHY 为什么选我们
══════════════════════════════════════ */
#why {
  padding: 8rem 4rem;
  background: linear-gradient(135deg, #1A0D05 0%, #0F0906 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  position: relative; overflow: hidden;
}
.why-fire-blob {
  position: absolute; top: -20%; right: -10%;
  width: 500px; height: 500px; border-radius: 50%;
  background: radial-gradient(ellipse, rgba(255,94,0,.1) 0%, transparent 70%);
  pointer-events: none;
}
.why-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2rem; margin-top: 3.5rem;
  position: relative; z-index: 1;
}
.why-item {
  border-top: 1px solid var(--border); padding-top: 1.5rem;
  transition: border-color .3s;
}
.why-item:hover { border-top-color: var(--fire); }
/* ✏️ 修改优势标题和描述 */
.why-item h3 {
  font-family: var(--font-display);
  font-size: 1.4rem; color: var(--white);
  letter-spacing: .04em; margin-bottom: .5rem;
  display: flex; align-items: center; gap: .5rem;
}
.why-item p { font-size: .88rem; color: var(--muted); line-height: 1.75; }

/* ══════════════════════════════════════
   CONTACT 联系方式
══════════════════════════════════════ */
#contact {
  background: var(--bg); padding: 10rem 4rem;
  text-align: center; position: relative; overflow: hidden;
}
.contact-fire-glow {
  position: absolute; bottom: -30%; left: 50%;
  transform: translateX(-50%);
  width: 700px; height: 400px; border-radius: 50%;
  background: radial-gradient(ellipse, rgba(255,94,0,.12) 0%, transparent 70%);
  pointer-events: none;
}
.contact-bg-text {
  position: absolute;
  font-family: var(--font-display);
  font-size: 20vw; color: rgba(255,94,0,.03);
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  white-space: nowrap; pointer-events: none;
  letter-spacing: -.02em;
}
/* ✏️ 修改联系页标题 */
.contact-title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 9vw, 8rem);
  line-height: .93; color: var(--white);
  margin-bottom: 1.5rem;
  position: relative; z-index: 1;
}
.contact-title span { color: var(--fire); }
/* ✏️ 修改联系页副标题 */
.contact-sub {
  font-size: .95rem; color: var(--muted);
  max-width: 440px; margin: 0 auto 3.5rem;
  position: relative; z-index: 1; line-height: 1.8;
}
.contact-buttons {
  display: flex; justify-content: center; gap: 1.5rem;
  flex-wrap: wrap; position: relative; z-index: 1;
}
/* ✏️ 替换 WhatsApp 链接 href="https://wa.me/601113014518" */
.btn-wa {
  display: inline-flex; align-items: center; gap: .75rem;
  background: #25D366; color: #fff;
  font-family: var(--font-mono); font-size: .8rem;
  font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: 1.1rem 2.5rem; border-radius: 3px;
  transition: opacity .2s; text-decoration: none;
}
.btn-wa:hover { opacity: .88; }
/* ✏️ 替换 Telegram 链接 href="https://t.me/ahnicky59" */
.btn-tg {
  display: inline-flex; align-items: center; gap: .75rem;
  background: var(--fire); color: var(--white);
  font-family: var(--font-mono); font-size: .8rem;
  font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  padding: 1.1rem 2.5rem; border-radius: 3px;
  border: none; transition: opacity .2s; text-decoration: none;
}
.btn-tg:hover { opacity: .85; }
.btn-icon { width: 22px; height: 22px; }

/* ══════════════════════════════════════
   TRUST & FAQ
══════════════════════════════════════ */
#faq { background: var(--surface); position: relative; overflow: hidden; }
.faq-fire-blob {
  position: absolute; top: -10%; left: -5%;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(ellipse, rgba(255,94,0,.07) 0%, transparent 70%);
  pointer-events: none;
}
.faq-layout {
  display: grid; grid-template-columns: 1fr 1.4fr;
  gap: 5rem; align-items: start;
  position: relative; z-index: 1;
}
/* Left — Trust badges */
.trust-col { position: sticky; top: 8rem; }
.trust-score-box {
  background: var(--bg);
  border: 1px solid var(--border);
  border-left: 3px solid var(--fire);
  padding: 2rem 1.8rem;
  margin-bottom: 1.5rem;
}
.trust-score-label {
  font-family: var(--font-mono); font-size: .65rem;
  color: var(--muted); letter-spacing: .18em; text-transform: uppercase;
  margin-bottom: .5rem;
}
.trust-score-num {
  font-family: var(--font-display); font-size: 3.5rem;
  color: var(--fire); line-height: 1;
}
.trust-score-sub { font-size: .8rem; color: var(--muted); margin-top: .3rem; }
.trust-badges { display: flex; flex-direction: column; gap: 1rem; }
.trust-badge {
  display: flex; align-items: center; gap: 1rem;
  background: var(--bg); border: 1px solid var(--border);
  padding: 1rem 1.25rem;
}
.badge-icon { font-size: 1.4rem; flex-shrink: 0; }
.badge-text { font-size: .85rem; color: var(--muted); line-height: 1.5; }
.badge-text strong { color: var(--white); font-weight: 500; display: block; margin-bottom: .1rem; }

/* Right — FAQ accordion */
.faq-col {}
.faq-item {
  border-top: 1px solid var(--border);
  overflow: hidden;
  transition: border-color .3s;
}
.faq-item:last-child { border-bottom: 1px solid var(--border); }
.faq-item.open { border-top-color: var(--fire); }
.faq-q {
  width: 100%; background: none; border: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.6rem 0; gap: 1rem; text-align: left;
}
.faq-q-text {
  font-family: var(--font-display); font-size: 1.25rem;
  letter-spacing: .03em; color: var(--white); line-height: 1.2;
}
.faq-item.open .faq-q-text { color: var(--fire); }
.faq-arrow {
  width: 28px; height: 28px; flex-shrink: 0;
  border: 1px solid var(--border); border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: .75rem;
  transition: transform .3s, border-color .3s, color .3s;
}
.faq-item.open .faq-arrow {
  transform: rotate(45deg);
  border-color: var(--fire); color: var(--fire);
}
.faq-body {
  max-height: 0; overflow: hidden;
  transition: max-height .45s cubic-bezier(.4,0,.2,1), padding .3s;
}
.faq-item.open .faq-body { max-height: 600px; }
.faq-a {
  padding-bottom: 1.6rem;
  font-size: .9rem; color: var(--muted); line-height: 1.85;
}
.faq-a strong { color: var(--ember); font-weight: 500; }
.faq-a .tag-inline {
  display: inline-block;
  font-family: var(--font-mono); font-size: .62rem;
  color: var(--fire); border: 1px solid rgba(255,94,0,.3);
  padding: .15rem .5rem; border-radius: 2px;
  letter-spacing: .1em; margin: .15rem .1rem;
}

@media (max-width: 960px) {
  .faq-layout { grid-template-columns: 1fr; gap: 3rem; }
  .trust-col { position: static; }
}

/* ══════════════════════════════════════
   FOOTER
══════════════════════════════════════ */
footer {
  background: var(--surface);
  padding: 2.5rem 4rem;
  display: flex; justify-content: space-between; align-items: center;
  border-top: 1px solid var(--border);
}
/* ✏️ 修改页脚品牌名 */
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.3rem; letter-spacing: .1em; color: var(--white);
}
.footer-logo span { color: var(--fire); }
.footer-nav { display: flex; gap: 2rem; list-style: none; }
.footer-nav a {
  font-family: var(--font-mono); font-size: .68rem;
  color: var(--muted); letter-spacing: .1em; text-transform: uppercase;
  transition: color .2s;
}
.footer-nav a:hover { color: var(--white); }
/* ✏️ 修改版权文字 */
.footer-copy {
  font-family: var(--font-mono); font-size: .65rem;
  color: rgba(122,101,85,.5); letter-spacing: .06em;
}

/* ══════════════════════════════════════
   FLOATING BUTTONS 悬浮按钮
══════════════════════════════════════ */
.float-btns {
  position: fixed; bottom: 2rem; right: 2rem;
  display: flex; flex-direction: column; gap: .75rem;
  z-index: 300;
}
/* ✏️ 替换 href 为你的联系链接 */
.float-btn {
  width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(0,0,0,.5);
  transition: transform .2s, box-shadow .2s;
  text-decoration: none; border: none; cursor: pointer;
}
.float-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(0,0,0,.6);
}
.float-btn.wa { background: #25D366; }
.float-btn.tg { background: var(--fire); }
.float-btn svg { width: 24px; height: 24px; fill: #fff; }

/* ══════════════════════════════════════
   UTILITIES
══════════════════════════════════════ */
.fade-up {
  opacity: 0; transform: translateY(28px);
  transition: opacity .7s ease, transform .7s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

.btn-fire {
  display: inline-block;
  font-family: var(--font-mono); font-size: .75rem;
  font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  background: var(--fire); color: var(--white);
  padding: .9rem 2rem; border-radius: 3px;
  border: none; cursor: pointer;
  transition: opacity .2s; text-decoration: none;
}
.btn-fire:hover { opacity: .85; }
.btn-ghost {
  display: inline-block;
  font-family: var(--font-mono); font-size: .75rem;
  font-weight: 700; letter-spacing: .1em; text-transform: uppercase;
  background: transparent; color: var(--white);
  padding: .9rem 2rem; border-radius: 3px;
  border: 1px solid rgba(255,244,236,.2); cursor: pointer;
  transition: border-color .2s; text-decoration: none;
}
.btn-ghost:hover { border-color: var(--white); }

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media (max-width: 960px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links { display: none; }
  #home, section.page-section, #why, #contact { padding-left: 1.5rem; padding-right: 1.5rem; }
  .hero-title { font-size: clamp(3.5rem, 15vw, 7rem); }
  .hero-bottom { flex-direction: column; gap: 2rem; align-items: flex-start; }
  .hero-stats { gap: 1.5rem; }
  .services-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
  .services-grid { grid-template-columns: 1fr; }
  .video-grid, .design-grid, .lp-grid { grid-template-columns: 1fr; }
  .process-grid { grid-template-columns: 1fr 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  footer { flex-direction: column; gap: 1.5rem; text-align: center; }
}

/* ══════════════════════════════════════
   MUSIC PLAYER — fixed bottom bar
══════════════════════════════════════ */
#music-bar {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 9000;
  background: rgba(10,6,3,0.96);
  backdrop-filter: blur(18px);
  border-top: 1px solid rgba(255,94,0,0.25);
  padding: .65rem 2rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
}
#music-bar .song-info {
  display: flex; flex-direction: column; flex: 1;
  min-width: 0;
}
#music-bar .song-title {
  font-family: var(--font-mono);
  font-size: .68rem; letter-spacing: .18em;
  color: var(--white); text-transform: uppercase;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
#music-bar .song-sub {
  font-size: .6rem; color: var(--muted);
  letter-spacing: .12em; font-family: var(--font-mono);
}
/* progress bar */
#music-bar .progress-wrap {
  flex: 2; display: flex; align-items: center; gap: .7rem;
}
#music-bar .prog-time {
  font-family: var(--font-mono); font-size: .6rem;
  color: var(--muted); white-space: nowrap; min-width: 36px;
  text-align: right;
}
#music-bar input[type=range] {
  -webkit-appearance: none; flex: 1; height: 3px;
  background: var(--border); border-radius: 2px; cursor: pointer;
  outline: none;
}
#music-bar input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--fire); cursor: pointer;
}
#music-bar input[type=range]::-webkit-slider-runnable-track {
  height: 3px; border-radius: 2px;
}
/* play button */
#play-btn {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--fire);
  border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: opacity .2s, transform .15s;
  box-shadow: 0 0 14px rgba(255,94,0,0.45);
}
#play-btn:hover { opacity: .85; transform: scale(1.08); }
#play-btn svg { width: 14px; height: 14px; fill: #fff; }
/* volume */
#music-bar .vol-wrap {
  display: flex; align-items: center; gap: .5rem; flex-shrink: 0;
}
#music-bar .vol-icon { font-size: .85rem; color: var(--muted); }
#music-bar input[type=range].vol-slider { flex: none; width: 60px; }
/* push page content above player */
body { padding-bottom: 58px; }
@media (max-width: 600px) {
  #music-bar { padding: .55rem 1rem; gap: .8rem; }
  #music-bar .progress-wrap { display: none; }
  #music-bar .vol-wrap { display: none; }
  #music-bar .song-sub { display: none; }
}



/* ══════════════════════════════════════
   2026 TRUST + LOCAL SEO UPGRADE
══════════════════════════════════════ */
.skip-link {
  position: fixed; left: 1rem; top: -5rem; z-index: 10001;
  background: var(--fire); color: #fff; padding: .7rem 1rem;
  border-radius: 4px; font-family: var(--font-mono); font-size: .72rem;
  transition: top .2s;
}
.skip-link:focus { top: 1rem; }
:focus-visible { outline: 2px solid var(--glow); outline-offset: 4px; }
.hero-copy { max-width: 520px; }
.hero-actions { display: flex; gap: .8rem; flex-wrap: wrap; margin-top: 1.4rem; }
.hero-actions .btn-fire, .hero-actions .btn-ghost { padding: .8rem 1.35rem; }
.hero-location {
  display: inline-flex; align-items: center; gap: .5rem;
  margin-top: 1rem; color: var(--muted); font-size: .72rem;
  font-family: var(--font-mono); letter-spacing: .06em;
}
.hero-location::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--fire); box-shadow: 0 0 12px var(--fire); }
.nav-toggle {
  display: none; width: 42px; height: 42px; border: 1px solid var(--border);
  background: var(--surface); color: var(--white); border-radius: 4px;
  align-items: center; justify-content: center; cursor: pointer;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: ''; display: block; width: 18px; height: 1px; background: currentColor;
  transition: transform .25s, opacity .25s;
}
.nav-toggle { flex-direction: column; gap: 5px; }
.nav-toggle.open span { opacity: 0; }
.nav-toggle.open::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open::after { transform: translateY(-6px) rotate(-45deg); }

#proof { background: var(--bg); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.proof-intro { max-width: 660px; color: var(--muted); line-height: 1.85; margin-top: -1.5rem; margin-bottom: 3rem; }
.proof-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.proof-card {
  background: linear-gradient(145deg, rgba(255,94,0,.06), rgba(255,255,255,.015));
  border: 1px solid var(--border); padding: 2rem; min-height: 310px;
  display: flex; flex-direction: column; position: relative; overflow: hidden;
}
.proof-card::before { content: ''; position: absolute; inset: 0 auto auto 0; width: 100%; height: 2px; background: linear-gradient(90deg,var(--fire),transparent); }
.proof-kicker { font-family: var(--font-mono); color: var(--fire); letter-spacing: .15em; font-size: .62rem; text-transform: uppercase; margin-bottom: 1.2rem; }
.proof-card h3 { font-family: var(--font-display); font-size: 1.65rem; line-height: 1.05; letter-spacing: .03em; margin-bottom: 1rem; }
.proof-card p { color: var(--muted); font-size: .88rem; line-height: 1.8; }
.proof-list { list-style: none; display: grid; gap: .65rem; margin-top: auto; padding-top: 1.6rem; }
.proof-list li { color: var(--white); font-size: .78rem; display: flex; gap: .55rem; align-items: flex-start; }
.proof-list li::before { content: '◆'; color: var(--fire); font-size: .48rem; margin-top: .35rem; }
.trust-score-num { font-size: clamp(2.4rem, 5vw, 3.5rem); }
.trust-note { margin-top: 1.2rem; padding: 1rem 1.15rem; border: 1px solid var(--border); color: var(--muted); font-size: .78rem; line-height: 1.7; }
.footer-stack { display: flex; flex-direction: column; gap: .25rem; }
.footer-position { font-family: var(--font-mono); font-size: .58rem; color: var(--muted); letter-spacing: .08em; text-transform: uppercase; }

@media (max-width: 960px) {
  .nav-toggle { display: flex; }
  .nav-links {
    display: none; position: absolute; top: calc(100% + 1px); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0; padding: .8rem 1.5rem 1.2rem;
    background: rgba(12,9,5,.98); border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-links a { display: block; padding: .85rem 0; }
  .nav-cta { text-align: center; margin-top: .4rem; }
  .proof-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  #home { min-height: auto; padding-top: 9rem; padding-bottom: 5rem; }
  .hero-stats { display: grid; grid-template-columns: repeat(3, 1fr); width: 100%; gap: .6rem; }
  .stat-item { text-align: left; padding: .85rem; border: 1px solid var(--border); background: rgba(23,16,9,.55); }
  .stat-number { font-size: 2rem; }
  .hero-actions { width: 100%; }
  .hero-actions a { flex: 1; text-align: center; }
  .float-btns { right: 1rem; bottom: 4.8rem; }
  .float-btn { width: 46px; height: 46px; }
}
@media (pointer: coarse) {
  .cursor, .cursor-ring { display: none !important; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}


/* ══════════════════════════════════════
   作品 DROPDOWN  (added for multi-page nav)
══════════════════════════════════════ */
.has-dd { position: relative; }
.has-dd > a { display: inline-flex; align-items: center; gap: .32rem; }
.has-dd::after { content: ""; position: absolute; left: 0; right: 0; top: 100%; height: .8rem; }
.dd-caret { font-size: .55rem; transition: transform .2s; display: inline-block; }
.dd-menu {
  position: absolute; top: calc(100% + .55rem); left: 50%;
  transform: translateX(-50%) translateY(6px);
  min-width: 178px; background: rgba(18,12,7,.98);
  border: 1px solid var(--border); border-radius: 6px; padding: .5rem;
  display: flex; flex-direction: column; gap: .1rem; list-style: none;
  opacity: 0; visibility: hidden; transition: opacity .18s ease, transform .18s ease;
  z-index: 300; box-shadow: 0 18px 42px rgba(0,0,0,.55);
}
.has-dd:hover .dd-menu, .has-dd:focus-within .dd-menu {
  opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0);
}
.has-dd:hover .dd-caret, .has-dd:focus-within .dd-caret { transform: rotate(180deg); }
.dd-menu a {
  display: block; padding: .62rem .8rem; border-radius: 4px;
  font-size: .74rem; letter-spacing: .1em; color: var(--muted);
  white-space: nowrap; text-align: left; text-transform: uppercase;
}
.dd-menu a:hover { background: var(--surface2); color: var(--white); }

/* ══════════════════════════════════════
   SUBPAGE LAYOUT (video-cases / landing / ad-creative / seo)
══════════════════════════════════════ */
.subpage-hero { padding: 12rem 4rem 4rem; position: relative; border-bottom: 1px solid var(--border); overflow: hidden; }
.subpage-hero::before {
  content: ""; position: absolute; top: -40%; right: -10%; width: 60%; height: 180%;
  background: radial-gradient(circle, rgba(255,94,0,.16), transparent 62%); pointer-events: none;
}
.breadcrumb { font-family: var(--font-mono); font-size: .66rem; letter-spacing: .12em; color: var(--muted); text-transform: uppercase; margin-bottom: 1.4rem; position: relative; }
.breadcrumb a { color: var(--muted); } .breadcrumb a:hover { color: var(--fire); }
.subpage-hero h1 { font-family: var(--font-display); font-size: clamp(2.8rem, 8vw, 5.6rem); line-height: .95; letter-spacing: .02em; position: relative; }
.subpage-hero h1 .fire { color: var(--fire); }
.subpage-lead { max-width: 640px; margin-top: 1.4rem; color: var(--muted); font-size: 1.02rem; line-height: 1.75; position: relative; }
.subpage-section { padding: 4rem; max-width: 1320px; margin: 0 auto; }
.brand-block { margin-bottom: 3.6rem; }
.brand-head { display: flex; align-items: baseline; gap: .85rem; margin-bottom: .2rem; }
.brand-name { font-family: var(--font-display); font-size: 2rem; letter-spacing: .05em; color: var(--white); }
.brand-count { font-family: var(--font-mono); font-size: .68rem; color: var(--muted); letter-spacing: .1em; }
.brand-rule { height: 1px; background: var(--border); margin: .95rem 0 1.7rem; }
.empty-slot {
  border: 1px dashed var(--border); border-radius: 10px; padding: 3rem 2rem; text-align: center;
  color: var(--muted); font-size: .92rem; line-height: 1.7; background: rgba(23,16,9,.35);
}
.empty-slot strong { color: var(--glow); font-weight: 600; }
.seo-prose { max-width: 760px; }
.seo-prose h2 { font-family: var(--font-display); font-size: clamp(1.8rem,4vw,2.6rem); letter-spacing: .03em; margin: 2.8rem 0 1rem; color: var(--white); }
.seo-prose h2 .fire { color: var(--fire); }
.seo-prose h3 { font-size: 1.15rem; font-weight: 600; margin: 1.8rem 0 .6rem; color: var(--glow); }
.seo-prose p { color: var(--muted); line-height: 1.85; margin-bottom: 1rem; }
.seo-prose ul { color: var(--muted); line-height: 1.85; margin: 0 0 1rem 1.2rem; }
.seo-prose li { margin-bottom: .4rem; }
.seo-prose strong { color: var(--white); font-weight: 600; }
@media (max-width: 960px) {
  .dd-menu { position: static; transform: none; opacity: 1; visibility: visible; box-shadow: none;
    border: none; background: transparent; padding: .1rem 0 .35rem 1rem; min-width: 0; }
  .has-dd::after { display: none; }
  .has-dd:hover .dd-caret, .has-dd:focus-within .dd-caret { transform: none; }
  .dd-caret { display: none; }
  .dd-menu a { padding: .7rem 0; }
}
@media (max-width: 700px) {
  .subpage-hero { padding: 9rem 1.4rem 3rem; }
  .subpage-section { padding: 2.5rem 1.4rem; }
}

/* ══════════════════════════════════════
   VIDEO / MEDIA CATALOG CARD (uniform grid for subpages)
══════════════════════════════════════ */
.vc-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(210px, 1fr)); gap: 1.1rem; }
.vc-card {
  position: relative; aspect-ratio: 3 / 4; border-radius: 12px; overflow: hidden;
  border: 1px solid var(--border); background: var(--surface); cursor: pointer;
  transition: transform .25s ease, border-color .25s ease; outline: none;
}
.vc-card:hover, .vc-card:focus-visible { transform: translateY(-4px); border-color: var(--fire); }
.vc-card video, .vc-card img { width: 100%; height: 100%; object-fit: cover; display: block; }
.vc-card .vc-play {
  position: absolute; inset: 0; margin: auto; width: 54px; height: 54px; border-radius: 50%;
  background: rgba(255,94,0,.9); display: flex; align-items: center; justify-content: center;
  opacity: .92; transition: transform .25s, opacity .25s; pointer-events: none;
}
.vc-card:hover .vc-play { transform: scale(1.08); opacity: 1; }
.vc-card .vc-play svg { width: 20px; height: 20px; fill: #fff; margin-left: 3px; }
.vc-card .vc-info {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 1.4rem .9rem .85rem;
  background: linear-gradient(transparent, rgba(12,9,5,.92)); pointer-events: none;
}
.vc-card .vc-tag { font-family: var(--font-mono); font-size: .58rem; letter-spacing: .12em; text-transform: uppercase; color: var(--glow); margin-bottom: .3rem; }
.vc-card h4 { font-size: .92rem; font-weight: 600; color: var(--white); line-height: 1.25; }
/* image-only cards (广告素材图) keep same frame but no play button */
.vc-card.is-image .vc-play { display: none; }