/* 李发发工作台官网 —— 剪辑台主题
   基调：深蓝灰剪辑间 + 影视调色的琥珀×青双色，时间线是全页主视觉 */

:root {
  --ink: #10141b;
  --panel: #161c26;
  --panel-2: #1b2230;
  --line: #29323f;
  --paper: #ece8df;
  --dim: #8d97a5;
  --amber: #ffae3d;
  --amber-deep: #d98a1a;
  --teal: #46c8b2;
  --teal-soft: #39968a;
  --maxw: 1060px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--paper);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
code {
  font-family: Consolas, "SF Mono", Menlo, monospace;
  font-size: 0.92em;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 4px;
  padding: 0.08em 0.4em;
}

a { color: var(--teal); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--amber); outline-offset: 3px; border-radius: 2px; }

/* ---------- 头部 ---------- */
.site-head {
  display: flex; align-items: baseline; justify-content: space-between; gap: 16px;
  max-width: var(--maxw); margin: 0 auto; padding: 26px 24px 0;
}
.brand { display: flex; align-items: baseline; gap: 12px; }
.brand-cn { font-size: 19px; font-weight: 700; letter-spacing: 0.02em; }
.brand-en {
  font-family: Consolas, "SF Mono", Menlo, monospace;
  font-size: 11px; letter-spacing: 0.22em; color: var(--dim);
}
.site-nav { display: flex; flex-wrap: wrap; gap: 14px 22px; font-size: 14px; }
.site-nav a { color: var(--dim); }
.site-nav a:hover { color: var(--paper); text-decoration: none; }
.site-nav .nav-gh { color: var(--amber); }

/* ---------- Hero ---------- */
.hero { padding: 84px 0 0; }
.hero h1 {
  font-size: clamp(28px, 5.4vw, 58px);
  line-height: 1.28;
  font-weight: 700;
  letter-spacing: 0.01em;
  max-width: 21em;
}
.lede { margin-top: 22px; max-width: 36em; color: var(--dim); font-size: 17px; }
.cta-row { margin-top: 30px; display: flex; gap: 14px; flex-wrap: wrap; }
.btn {
  display: inline-block; padding: 11px 26px; font-size: 15px; border-radius: 3px;
  border: 1px solid transparent;
}
.btn:hover { text-decoration: none; }
.btn-solid { background: var(--amber); color: #20160a; font-weight: 600; }
.btn-solid:hover { background: #ffc061; }
.btn-ghost { border-color: var(--line); color: var(--paper); }
.btn-ghost:hover { border-color: var(--dim); }
.status-line {
  margin-top: 26px; color: var(--dim); font-size: 13px;
  font-family: Consolas, "SF Mono", Menlo, monospace;
  display: flex; align-items: center; gap: 8px; flex-wrap: wrap;
}
.status-line .dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--teal);
  box-shadow: 0 0 6px var(--teal);
}

/* ---------- 时间线（主视觉） ---------- */
.timeline {
  position: relative;
  max-width: 1180px; margin: 56px auto 0; padding: 22px 26px 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-bottom: 2px solid var(--amber-deep);
  border-radius: 10px 10px 0 0;
  overflow: hidden;
}
.tl-ruler {
  display: flex; justify-content: space-between;
  font-family: Consolas, "SF Mono", Menlo, monospace;
  font-size: 11px; color: #5b6675; letter-spacing: 0.08em;
  border-bottom: 1px solid var(--line); padding-bottom: 8px; margin-bottom: 14px;
}
.tl-track { display: flex; align-items: center; gap: 14px; margin-top: 10px; }
.tl-name {
  flex: 0 0 3em; font-size: 12px; color: var(--dim); text-align: right;
}
.tl-clips { position: relative; flex: 1; height: 34px; }
.clip, .tick {
  position: absolute; top: 0; height: 100%;
  left: calc(var(--x, 0) * 1%);
  width: calc(var(--w) * 1%);
  display: flex; align-items: center; padding-left: 10px;
  font-size: 12px; color: #14202c; white-space: nowrap; overflow: hidden;
  border-radius: 3px;
  opacity: 0; transform: translateX(8px);
  animation: clipIn 0.7s ease forwards;
  animation-delay: var(--d);
}
.tick { background: #ece8df; color: #20160a; height: 60%; top: 20%; }
.c-amber   { background: var(--amber); --x: 2; }
.c-amber-l { background: #ffca7a; --x: 32; }
.c-teal    { background: var(--teal); --x: 6; }
.c-teal-l  { background: #7fdccc; --x: 4; }
.playhead {
  position: absolute; top: 12px; bottom: 14px; left: 4%;
  width: 2px; background: var(--paper);
  box-shadow: 0 0 8px rgba(236, 232, 223, 0.55);
  pointer-events: none;
}
.ph-flag {
  position: absolute; top: -8px; left: 6px;
  font-family: Consolas, "SF Mono", Menlo, monospace;
  font-size: 11px; color: var(--amber); background: rgba(16, 20, 27, 0.85);
  padding: 1px 6px; border-radius: 2px; white-space: nowrap;
}
@keyframes clipIn { to { opacity: 1; transform: none; } }

/* ---------- 通用区块 ---------- */
.sec { padding: 96px 0 20px; }
.sec-alt {
  background: var(--panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding-bottom: 72px;
}
.sec h2 { font-size: clamp(26px, 3.2vw, 36px); line-height: 1.4; font-weight: 700; }
.sec-desc { margin-top: 14px; max-width: 40em; color: var(--dim); }

/* ---------- 流水线 ---------- */
.stages {
  list-style: none; margin-top: 44px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0 40px;
}
.stages li { border-top: 1px solid var(--line); padding: 18px 0 30px; }
.st-no {
  font-family: Consolas, "SF Mono", Menlo, monospace;
  font-size: 12px; color: var(--amber); letter-spacing: 0.1em;
}
.stages h3 { font-size: 18px; margin-top: 6px; }
.stages p { font-size: 14px; color: var(--dim); margin-top: 6px; line-height: 1.75; }

/* ---------- 能力包 ---------- */
.packs-grid {
  display: grid; grid-template-columns: 5fr 6fr; gap: 64px; align-items: start;
}
.packs-intro p { margin-top: 18px; color: var(--dim); }
.pack-list { list-style: none; }
.pack-list li {
  display: grid; grid-template-columns: 8.5em 1fr; gap: 18px; align-items: baseline;
  border-bottom: 1px solid var(--line); padding: 15px 0;
}
.pack-list li:first-child { border-top: 1px solid var(--line); }
.pack-list h3 { font-size: 15.5px; font-weight: 600; }
.pack-list p { font-size: 14px; color: var(--dim); }

/* ---------- 维修记录 ---------- */
.patch-list { list-style: none; margin-top: 44px; }
.patch-list li {
  display: grid; grid-template-columns: 9em 1fr; gap: 28px;
  border-top: 1px solid var(--line); padding: 26px 0;
}
.p-tag {
  font-weight: 700; font-size: 16px;
}
.p-tag::before {
  content: "▸ "; color: var(--amber);
}
.p-was { color: var(--dim); font-size: 14.5px; }
.p-was::before { content: "修前　"; color: #6d7887; font-weight: 600; }
.p-now { margin-top: 6px; font-size: 15px; }
.p-now::before { content: "修后　"; color: var(--teal); font-weight: 600; }

/* ---------- 快速开始 ---------- */
.term {
  margin-top: 40px; background: #0c1016; border: 1px solid var(--line);
  border-radius: 8px; overflow: hidden;
}
.term-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 10px 14px; background: var(--panel-2); border-bottom: 1px solid var(--line);
}
.term-bar span { width: 10px; height: 10px; border-radius: 50%; background: #2c3644; }
.term-bar em { margin-left: 8px; font-style: normal; font-size: 12px; color: var(--dim); }
.term pre {
  padding: 20px 22px 24px; overflow-x: auto;
  font-family: Consolas, "SF Mono", Menlo, monospace;
  font-size: 14px; line-height: 2;
}
.t-p { color: var(--amber); }
.t-ok { color: var(--teal); }
.req-list {
  list-style: none; margin-top: 22px; display: flex; flex-wrap: wrap; gap: 10px;
  font-size: 13.5px; color: var(--dim);
}
.req-list li {
  border: 1px solid var(--line); border-radius: 3px; padding: 4px 12px;
}
.start-note { margin-top: 26px; color: var(--dim); max-width: 42em; font-size: 15px; }

/* ---------- 页脚 ---------- */
.site-foot {
  margin-top: 96px; border-top: 1px solid var(--line);
  padding: 34px 0 44px; font-size: 14px; color: var(--dim);
}
.foot-sub { margin-top: 8px; font-size: 12.5px; color: #5b6675; }

/* ---------- 响应式 ---------- */
@media (max-width: 900px) {
  .stages { grid-template-columns: repeat(2, 1fr); gap: 0 28px; }
  .packs-grid { grid-template-columns: 1fr; gap: 40px; }
  .patch-list li { grid-template-columns: 1fr; gap: 10px; }
  .site-head { flex-wrap: wrap; }
  .site-nav { gap: 16px; }
  .hero { padding-top: 56px; }
  .sec { padding-top: 72px; }
  .clip, .tick { font-size: 10.5px; padding-left: 7px; }
}
@media (max-width: 560px) {
  .stages { grid-template-columns: 1fr; }
  .pack-list li { grid-template-columns: 1fr; gap: 4px; }
  .brand-en { display: none; }
  .hero h1 br { display: none; }
  .hero h1 { font-size: 26px; }
  .timeline { padding: 16px 14px 20px; }
  .tl-name { flex-basis: 2.4em; font-size: 11px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .clip, .tick { animation: none; opacity: 1; transform: none; }
  .playhead { left: 44%; }
}