/* ============================================================
   ClipForge 官网 — 「深夜橱窗」设计系统
   概念:凌晨的电商直播间,深紫夜色里只亮着三样东西:
   商品、红价签、黄色的「点击购买」。
   品牌紫 = 锻造的光;电商三原色(价签红/小黄车黄/合规绿)只在
   该出现的地方出现。标签与时间码走等宽字体,像后台数据一样可信。
   ============================================================ */
* { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --ink: #0a0714;          /* 深紫夜,直播间关灯后的底色 */
  --ink-2: #120c22;        /* 抬升一层的面板 */
  --ink-3: #191230;        /* 再抬升(控制台窗口) */
  --line: rgba(190, 170, 255, 0.10);
  --line-2: rgba(190, 170, 255, 0.20);
  --paper: #f2eefc;
  --dim: #a396c6;
  --faint: #6c6090;
  --brand: #7c5cff;
  --brand-2: #b79cff;
  --forge: linear-gradient(92deg, #6357ff, #9a5cff 55%, #e26bf5);
  --tag-red: #ff3b5c;      /* 价签红:只给价格与「爆单」 */
  --cart-yellow: #ffd23f;  /* 小黄车黄:只给购买动作 */
  --ok-green: #3ddc84;     /* 合规绿:只给「不踩坑」 */
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Code", Menlo, Consolas, monospace;
  --sans: "PingFang SC", "Hiragino Sans GB", "Source Han Sans SC", "Microsoft YaHei", -apple-system, "Segoe UI", sans-serif;
}

html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--ink);
  color: var(--paper);
  line-height: 1.75;
  overflow-x: hidden;
}
::selection { background: rgba(124, 92, 255, 0.45); }
a { color: var(--brand-2); text-decoration: none; }
a:hover { text-decoration: underline; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* 顶部一条锻造光带:全页唯一的常亮光源之一 */
.forgeline {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 60;
  background: var(--forge);
}

/* ---------- 顶栏 ---------- */
nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; gap: 18px;
  padding: 14px 0;
  background: rgba(10, 7, 20, 0.84);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
nav img { width: 30px; height: 30px; border-radius: 8px; }
nav .name { font-weight: 800; font-size: 18px; color: var(--paper); letter-spacing: 0.2px; }
nav .name em {
  font-style: normal; font-family: var(--mono); font-size: 11px; font-weight: 600;
  color: var(--brand-2); border: 1px solid rgba(124, 92, 255, 0.5); border-radius: 4px;
  padding: 2px 6px; margin-left: 8px; vertical-align: 2px; letter-spacing: 1px;
}
nav .spacer { flex: 1; }
nav a.plain { color: var(--dim); font-size: 14px; }
nav a.plain:hover { color: var(--paper); text-decoration: none; }

/* ---------- 首屏 ---------- */
.hero { padding: 68px 0 24px; text-align: center; position: relative; }
.hero::before {
  /* 唯一的环境光:从流水线上方渗出的一点品牌紫 */
  content: ""; position: absolute; inset: auto 0 -80px 0; height: 460px; pointer-events: none;
  background: radial-gradient(560px 300px at 50% 100%, rgba(124, 92, 255, 0.16), transparent 70%);
}
.hero .kicker {
  font-family: var(--mono); font-size: 12px; letter-spacing: 2.5px; color: var(--dim);
  display: inline-flex; align-items: center; gap: 10px; margin-bottom: 26px;
}
.hero .kicker::before, .hero .kicker::after { content: ""; width: 36px; height: 1px; background: var(--line-2); }
.hero .kicker .live { color: var(--tag-red); animation: blink 1.6s steps(2, start) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero h1 {
  font-size: clamp(34px, 5.6vw, 62px); line-height: 1.22; font-weight: 900; letter-spacing: 0.5px;
  text-wrap: balance;
}
.hero h1 .hl {
  background: var(--forge);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  text-shadow: 0 0 44px rgba(150, 92, 255, 0.35);
}
.hero .sub { margin: 22px auto 0; max-width: 730px; color: var(--dim); font-size: 17px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; margin: 28px 0 30px; }
.chip {
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.5px;
  padding: 6px 14px; border-radius: 4px; color: var(--dim);
  border: 1px solid var(--line-2); background: var(--ink-2);
}
.chip.gold { color: var(--cart-yellow); border-color: rgba(255, 210, 63, 0.4); }
.chip.green { color: var(--ok-green); border-color: rgba(61, 220, 132, 0.38); }
.cta { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn { display: inline-block; padding: 15px 32px; border-radius: 8px; font-size: 16.5px; font-weight: 700; letter-spacing: 0.3px; }
.btn-primary {
  background: var(--forge); color: #fff;
  box-shadow: 0 6px 30px rgba(124, 92, 255, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn-primary:hover { text-decoration: none; filter: brightness(1.1); }
.btn-ghost { border: 1px solid var(--line-2); color: var(--paper); background: transparent; }
.btn-ghost:hover { text-decoration: none; border-color: var(--brand); }
.hero .note { margin-top: 16px; font-size: 13px; color: var(--faint); font-family: var(--mono); letter-spacing: 0.5px; }

/* ============================================================
   签名元素:锻造流水线 — 一张商品图从左边进炉,
   经过 卖点 → 脚本 → 配音字幕 三站,右边出一条挂车成片。
   ============================================================ */
.demo {
  position: relative; margin: 56px auto 0; max-width: 1080px;
  display: grid; grid-template-columns: 1fr 204px; gap: 40px; align-items: stretch;
  text-align: left;
}

/* — 左:锻造控制台 — */
.forge-console {
  background: var(--ink-2); border: 1px solid var(--line); border-radius: 12px;
  display: flex; flex-direction: column; overflow: hidden; min-width: 0;
}
.console-bar {
  display: flex; align-items: center; gap: 12px; padding: 12px 16px;
  border-bottom: 1px solid var(--line); font-family: var(--mono); font-size: 12px; color: var(--dim);
}
.console-bar .dots { display: flex; gap: 6px; }
.console-bar .dots i { width: 9px; height: 9px; border-radius: 50%; background: var(--line-2); }
.console-bar .file { color: var(--paper); }
.console-bar .scan { margin-left: auto; color: var(--brand-2); }
.console-bar .scan::before { content: "●"; margin-right: 6px; animation: blink 1.2s steps(2, start) infinite; }

.belt { position: relative; flex: 1; display: flex; align-items: center; gap: 14px; padding: 40px 22px 34px; }
.belt::before {
  /* 传送带导轨 */
  content: ""; position: absolute; left: 24px; right: 24px; top: 50%; height: 1px;
  background: var(--line-2);
}
.belt .spark {
  /* 沿导轨移动的锻造火花 */
  position: absolute; top: 50%; left: 24px; width: 9px; height: 9px; margin-top: -4.5px;
  border-radius: 50%; background: var(--forge);
  box-shadow: 0 0 14px rgba(150, 92, 255, 0.9);
  animation: convey 6s linear infinite;
}
@keyframes convey { from { left: 3%; } to { left: 96%; } }

.sku {
  position: relative; z-index: 1; flex: 0 0 108px; text-align: center;
  background: var(--ink-3); border: 1px solid var(--line-2); border-radius: 10px; padding: 12px 10px 10px;
}
.sku .pic {
  width: 72px; height: 72px; margin: 0 auto 8px; border-radius: 8px;
  background:
    radial-gradient(30px 42px at 50% 46%, #e8cfa8, #d9b98c 70%, transparent 72%),
    linear-gradient(165deg, #f6ead9, #e5d0ba);
  border: 1px solid rgba(255, 255, 255, 0.25);
}
.sku .sku-name { font-size: 12px; font-weight: 700; color: var(--paper); line-height: 1.4; }
.sku .sku-tag { font-family: var(--mono); font-size: 9.5px; color: var(--faint); letter-spacing: 0.5px; white-space: nowrap; }

.station {
  position: relative; z-index: 1; flex: 1; min-width: 0;
  background: var(--ink-3); border: 1px solid var(--line); border-radius: 10px; padding: 14px 14px 12px;
}
.station .st-tag {
  display: inline-block; font-family: var(--mono); font-size: 9.5px; font-weight: 700; letter-spacing: 1.5px;
  color: var(--brand-2); border: 1px solid rgba(124, 92, 255, 0.45); border-radius: 3px;
  padding: 1px 6px; margin-bottom: 8px;
}
.station h4 { font-size: 14px; font-weight: 800; line-height: 1.4; }
.station p { font-family: var(--mono); font-size: 10.5px; color: var(--faint); margin-top: 5px; line-height: 1.6; }
.station p b { color: var(--ok-green); font-weight: 400; }

.console-foot {
  border-top: 1px solid var(--line); padding: 10px 16px;
  font-family: var(--mono); font-size: 11.5px; color: var(--faint); letter-spacing: 0.5px;
  display: flex; gap: 18px; flex-wrap: wrap;
}
.console-foot .ok { color: var(--ok-green); }

/* — 中:出片口 — */
.demo .cut {
  position: absolute; left: calc(100% - 204px - 40px); top: 50%;
  width: 40px; text-align: center; transform: translateY(-50%);
  font-family: var(--mono); color: var(--brand-2); font-size: 16px;
}
.demo .cut::before {
  content: ""; position: absolute; left: 4px; right: 4px; top: 50%; height: 1px;
  background: repeating-linear-gradient(90deg, var(--brand) 0 5px, transparent 5px 10px);
}
.demo .cut span { position: relative; background: var(--ink); padding: 0 2px; }

/* — 右:9:16 挂车成片 — */
.phone {
  width: 204px; border-radius: 26px; border: 1px solid var(--line-2);
  background: #000; padding: 8px;
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6), 0 0 50px rgba(124, 92, 255, 0.12);
}
.screen {
  position: relative; border-radius: 19px; overflow: hidden; aspect-ratio: 9 / 16;
  background:
    radial-gradient(120px 90px at 62% 40%, rgba(255, 240, 210, 0.85), transparent 75%),
    linear-gradient(168deg, #f3e6d3, #e2cbb2 55%, #cfb193);
  display: flex; flex-direction: column;
}
.screen .price {
  position: absolute; top: 10px; left: 10px;
  font-family: var(--mono); font-size: 13px; font-weight: 800;
  color: #fff; background: var(--tag-red); border-radius: 6px; padding: 3px 8px;
  box-shadow: 0 4px 14px rgba(255, 59, 92, 0.45);
}
.screen .safe {
  position: absolute; top: 12px; right: 10px;
  font-family: var(--mono); font-size: 9px; font-weight: 700; letter-spacing: 0.5px;
  color: #0b3d23; background: var(--ok-green); border-radius: 4px; padding: 2px 6px;
}
.screen .hook {
  margin: 44px 10px 0; text-align: center;
  font-size: 16px; font-weight: 900; line-height: 1.45; letter-spacing: 0.5px;
  color: #fff; -webkit-text-stroke: 3.5px rgba(0, 0, 0, 0.8); paint-order: stroke fill;
}
.screen .hook em { font-style: normal; color: var(--cart-yellow); -webkit-text-stroke: 3.5px rgba(0, 0, 0, 0.8); }
.screen .bottle {
  /* 商品保真出镜:同一瓶,和左边输入的是同一件 */
  width: 46px; height: 78px; margin: 14px auto 0; border-radius: 10px 10px 8px 8px;
  background: linear-gradient(175deg, #f9efe0 20%, #e6cfae 70%, #d9bd97);
  border: 1px solid rgba(120, 80, 30, 0.25);
  box-shadow: 0 10px 24px rgba(90, 60, 20, 0.3);
  position: relative;
}
.screen .bottle::before {
  content: ""; position: absolute; top: -12px; left: 50%; width: 16px; height: 14px;
  transform: translateX(-50%); border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, #caa670, #b08a52);
}
.screen .caption {
  margin-top: auto; text-align: center;
  font-size: 14.5px; font-weight: 800; line-height: 1.5;
}
.screen .caption span {
  display: inline-block; padding: 0 1px; color: #fff;
  -webkit-text-stroke: 3px rgba(0, 0, 0, 0.8); paint-order: stroke fill;
  animation: karaoke 4.8s infinite;
}
.screen .caption span:nth-child(1) { animation-delay: 0s; }
.screen .caption span:nth-child(2) { animation-delay: 0.7s; }
.screen .caption span:nth-child(3) { animation-delay: 1.4s; }
.screen .caption span:nth-child(4) { animation-delay: 2.1s; }
@keyframes karaoke {
  0%, 13% { color: #fff; transform: none; }
  15%, 26% { color: var(--cart-yellow); transform: translateY(-2px) scale(1.12); }
  28%, 100% { color: #fff; transform: none; }
}
.screen .goods {
  /* 商品卡贴片:挂车感 */
  margin: 10px 8px 10px; background: rgba(12, 10, 18, 0.82); border-radius: 8px;
  padding: 7px 8px; display: flex; align-items: center; gap: 8px;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.screen .goods .g-pic {
  flex: 0 0 26px; height: 26px; border-radius: 5px;
  background: linear-gradient(165deg, #f6ead9, #d9b98c);
}
.screen .goods .g-info { min-width: 0; }
.screen .goods .g-name { font-size: 9.5px; font-weight: 700; color: #fff; line-height: 1.3; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.screen .goods .g-buy {
  font-size: 9px; font-weight: 800; color: #201500; background: var(--cart-yellow);
  border-radius: 3px; padding: 1px 5px; display: inline-block; margin-top: 2px;
  animation: buypulse 2.4s ease-in-out infinite;
}
@keyframes buypulse { 0%, 100% { transform: none; } 50% { transform: scale(1.06); } }
.screen .fmt {
  position: absolute; bottom: 8px; right: 10px;
  font-family: var(--mono); font-size: 9.5px; color: rgba(60, 40, 20, 0.6); letter-spacing: 1px;
}
.demo-cap { grid-column: 1 / -1; text-align: center; color: var(--faint); font-size: 13.5px; margin-top: 4px; }

/* ---------- 区块骨架 ---------- */
section { padding: 88px 0 0; }
.sec-head { display: flex; align-items: baseline; gap: 22px; margin-bottom: 40px; }
.sec-head .no { font-family: var(--mono); font-size: 12px; color: var(--brand); letter-spacing: 2px; white-space: nowrap; }
.sec-head h2 { font-size: clamp(26px, 3.4vw, 38px); font-weight: 900; letter-spacing: 0.5px; }
.sec-head h2 .hl { color: var(--brand-2); }
.sec-head::after { content: ""; flex: 1; height: 1px; background: var(--line); align-self: center; }
.hl { color: var(--brand-2); }

/* ---------- 三步出片:流水线导轨 ---------- */
.steps { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.steps::before {
  content: ""; position: absolute; top: 27px; left: 4%; right: 4%; height: 1px;
  background: var(--line-2); z-index: 0;
}
.step-card { position: relative; z-index: 1; padding-top: 4px; }
.step-card .tc {
  display: inline-block; font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: 1.5px;
  color: var(--cart-yellow); background: var(--ink-2); border: 1px solid var(--line-2);
  border-radius: 4px; padding: 8px 12px; margin-bottom: 18px;
}
.step-card h3 { font-size: 20px; font-weight: 800; margin-bottom: 8px; }
.step-card p { color: var(--dim); font-size: 15px; }

/* ---------- 特性:便当格 ---------- */
.bento { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; }
.card {
  background: var(--ink-2); border: 1px solid var(--line); border-radius: 12px; padding: 26px;
  transition: border-color 0.25s;
}
.card:hover { border-color: rgba(124, 92, 255, 0.45); }
.bento .card { grid-column: span 2; }
.bento .card.wide { grid-column: span 3; }
.card .tag {
  display: inline-block; font-family: var(--mono); font-size: 10.5px; font-weight: 700;
  letter-spacing: 2px; color: var(--brand-2); margin-bottom: 12px;
  border: 1px solid rgba(124, 92, 255, 0.45); border-radius: 3px; padding: 2px 7px;
}
.card .tag.gold { color: var(--cart-yellow); border-color: rgba(255, 210, 63, 0.4); }
.card .tag.green { color: var(--ok-green); border-color: rgba(61, 220, 132, 0.38); }
.card .tag.red { color: var(--tag-red); border-color: rgba(255, 59, 92, 0.4); }
.card h3 { font-size: 18px; font-weight: 800; margin-bottom: 8px; letter-spacing: 0.3px; }
.card p { color: var(--dim); font-size: 14.5px; }

/* ---------- 截图廊:横向胶片 ---------- */
.filmstrip {
  display: flex; gap: 16px; overflow-x: auto; padding: 6px 2px 18px;
  scroll-snap-type: x mandatory; scrollbar-width: thin; scrollbar-color: var(--brand) transparent;
}
.frame { flex: 0 0 min(620px, 84vw); scroll-snap-align: start; }
.frame img {
  width: 100%; display: block; border-radius: 10px;
  border: 1px solid var(--line-2); box-shadow: 0 18px 50px rgba(0, 0, 0, 0.5);
}
.frame figcaption { margin-top: 10px; font-family: var(--mono); font-size: 12px; color: var(--faint); letter-spacing: 0.5px; }
.frame figcaption b { color: var(--cart-yellow); font-weight: 700; margin-right: 8px; }

/* ---------- 对比表:ClipForge 列是亮的 ---------- */
.tablewrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 12px; background: var(--ink-2); }
table { width: 100%; border-collapse: collapse; font-size: 14.5px; min-width: 680px; }
th, td { padding: 14px 18px; text-align: left; border-bottom: 1px solid var(--line); vertical-align: top; }
thead th { font-family: var(--mono); font-size: 12px; letter-spacing: 1px; color: var(--dim); font-weight: 600; }
thead th:nth-child(2) { color: var(--brand-2); }
tbody tr:last-child td { border-bottom: none; }
td:nth-child(2), th:nth-child(2) {
  background: rgba(124, 92, 255, 0.08);
  border-left: 1px solid rgba(124, 92, 255, 0.35); border-right: 1px solid rgba(124, 92, 255, 0.35);
}
td.win { color: #d7c8ff; font-weight: 700; }
td:first-child, th:first-child { color: var(--faint); white-space: nowrap; font-family: var(--mono); font-size: 12.5px; }
.aftertable { text-align: center; margin-top: 18px; color: var(--dim); font-size: 14.5px; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 820px; margin: 0 auto; }
details { border-bottom: 1px solid var(--line); padding: 20px 4px; }
details summary {
  cursor: pointer; font-weight: 800; font-size: 16.5px; list-style: none;
  display: flex; align-items: center; gap: 14px;
}
details summary::-webkit-details-marker { display: none; }
details summary::before {
  content: "+"; font-family: var(--mono); color: var(--brand); font-size: 18px; font-weight: 400;
  transition: transform 0.2s;
}
details[open] summary::before { transform: rotate(45deg); }
details p { margin-top: 12px; color: var(--dim); font-size: 15px; padding-left: 30px; }

/* ---------- 尾部 CTA + 页脚 ---------- */
.last-call { text-align: center; padding: 96px 0 20px; }
.last-call h2 { font-size: clamp(28px, 4vw, 44px); font-weight: 900; margin-bottom: 14px; }
.last-call h2 .hl { background: var(--forge); -webkit-background-clip: text; background-clip: text; color: transparent; }
.last-call p { color: var(--dim); margin-bottom: 30px; }
footer {
  margin-top: 88px; padding: 34px 0 48px; border-top: 1px solid var(--line);
  color: var(--faint); font-size: 13.5px; text-align: center; font-family: var(--mono);
}
footer a { color: var(--dim); text-decoration: underline; }

/* ---------- 进场动效 ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .demo { grid-template-columns: 1fr; gap: 26px; justify-items: center; }
  .demo .cut { display: none; }
  .phone { width: 192px; }
  .belt { flex-direction: column; align-items: stretch; gap: 12px; padding: 26px 18px; }
  .belt::before { left: 50%; right: auto; top: 26px; bottom: 26px; width: 1px; height: auto; }
  .belt .spark { display: none; }
  .sku { flex-basis: auto; }
  .steps { grid-template-columns: 1fr; gap: 30px; }
  .steps::before { display: none; }
  .bento { grid-template-columns: 1fr; }
  .bento .card, .bento .card.wide { grid-column: 1 / -1; }
  .sec-head { flex-wrap: wrap; gap: 10px; }
  nav { gap: 12px; }
  nav a.plain { font-size: 13px; white-space: nowrap; }
  nav .name em { display: none; }
  .console-bar { font-size: 11px; gap: 8px; }
  .console-bar > span:nth-child(3) { display: none; }
  .console-bar .file { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; }
  .console-bar .scan { white-space: nowrap; }
}

/* ---------- 无障碍:能看清、能不动 ---------- */
a:focus-visible, .btn:focus-visible, summary:focus-visible {
  outline: 2px solid var(--cart-yellow); outline-offset: 3px; border-radius: 4px;
}
@media (prefers-reduced-motion: reduce) {
  .belt .spark, .screen .caption span, .screen .goods .g-buy,
  .hero .kicker .live, .console-bar .scan::before { animation: none !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}