/* ============================================================
   樱花视频 — 樱花影像创作站
   视觉系统：暗室中的花 / 电影手册编辑感
   ============================================================ */

/* ---------- 1. 令牌 ---------- */
:root{
  /* 底色：带紫调的墨 */
  --ink-900:#100d13;
  --ink-850:#15111a;
  --ink-800:#1b1622;
  --ink-750:#221b2b;
  --ink-700:#2b2335;
  --ink-600:#3a3046;
  --line:rgba(242,167,189,.14);
  --line-soft:rgba(255,255,255,.07);

  /* 字色 */
  --fg:#efe7ec;
  --fg-dim:#bdb0bb;
  --fg-mute:#8d8192;

  /* 樱：主强调 */
  --sakura-200:#ffdce6;
  --sakura-300:#ffbdd0;
  --sakura-400:#ff93b1;
  --sakura-500:#f2708f;
  --sakura-600:#c94a6c;

  /* 次强调：暮光金 / 叶樱青 */
  --gold:#e8c88c;
  --leaf:#86cdb4;

  --shadow-lift:0 18px 44px -24px rgba(0,0,0,.85);

  /* 排版 */
  --serif:"Songti SC","Noto Serif SC","Source Han Serif SC",'Hiragino Mincho ProN',"STSong",Georgia,serif;
  --sans:"PingFang SC","Noto Sans SC","Hiragino Sans GB","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  --mono:"SF Mono",ui-monospace,"JetBrains Mono",Menlo,Consolas,monospace;

  --shell:1200px;
  --shell-narrow:760px;
  --r-s:4px; --r-m:10px; --r-l:18px;
}

/* ---------- 2. 基础 ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:92px}
body{
  margin:0;
  background:var(--ink-900);
  color:var(--fg);
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  /* 顶部极淡的樱色辉光，不喧哗 */
  content:"";position:fixed;inset:0 0 auto 0;height:60vh;pointer-events:none;z-index:0;
  background:
    radial-gradient(70% 55% at 18% -8%, rgba(242,112,143,.17), transparent 70%),
    radial-gradient(55% 45% at 88% 2%, rgba(134,205,180,.08), transparent 70%);
}
img,svg,canvas{max-width:100%;display:block}
a{color:var(--sakura-300);text-decoration:none}
a:hover{color:var(--sakura-200)}
:focus-visible{outline:2px solid var(--sakura-400);outline-offset:3px;border-radius:3px}
hr{border:0;border-top:1px solid var(--line);margin:3rem 0}

h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.3;margin:0;letter-spacing:.01em}
h1{font-size:clamp(2rem,1.3rem + 2.6vw,3.3rem);line-height:1.18}
h2{font-size:clamp(1.5rem,1.1rem + 1.4vw,2.1rem)}
h3{font-size:clamp(1.17rem,1rem + .6vw,1.42rem)}
h4{font-size:1.06rem;font-family:var(--sans);font-weight:650}
p{margin:0 0 1.15em}
strong{color:#fff;font-weight:650}
em{font-style:normal;color:var(--sakura-300)}
code{font-family:var(--mono);font-size:.87em;background:var(--ink-750);
  border:1px solid var(--line-soft);padding:.12em .42em;border-radius:var(--r-s);color:var(--sakura-200)}
mark{background:rgba(232,200,140,.2);color:var(--gold);padding:0 .25em;border-radius:3px}
ul,ol{margin:0 0 1.2em;padding-left:1.35em}
li{margin:.4em 0}
li::marker{color:var(--sakura-500)}

/* ---------- 3. 容器 / 节奏 ---------- */
.shell{width:100%;max-width:var(--shell);margin-inline:auto;padding-inline:clamp(1.1rem,4vw,2.4rem);position:relative;z-index:1}
.shell--narrow{max-width:var(--shell-narrow)}
section{position:relative}
.band{padding:clamp(3.2rem,7vw,5.6rem) 0}
.band--tight{padding:clamp(2.2rem,4vw,3.2rem) 0}
.band--panel{background:linear-gradient(180deg,var(--ink-850),var(--ink-800));border-block:1px solid var(--line-soft)}
.band--deep{background:var(--ink-850);border-block:1px solid var(--line-soft)}

.rule{
  font-family:var(--mono);font-size:.69rem;letter-spacing:.2em;text-transform:uppercase;
  color:var(--sakura-500);display:flex;align-items:center;gap:.7rem;margin-bottom:1rem;
}
.rule::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--line),transparent)}
.rule--plain::after{display:none}
.eyebrow{font-family:var(--mono);font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;color:var(--fg-mute)}
.lede{font-size:clamp(1.03rem,.98rem + .3vw,1.18rem);color:var(--fg-dim);line-height:1.9;max-width:62ch}
.dim{color:var(--fg-mute)}
.center{text-align:center}
.mw-60{max-width:60ch}

/* ---------- 4. 页头 ---------- */
.masthead{
  position:sticky;top:0;z-index:60;
  background:rgba(16,13,19,.82);
  backdrop-filter:blur(14px) saturate(1.3);
  -webkit-backdrop-filter:blur(14px) saturate(1.3);
  border-bottom:1px solid var(--line-soft);
}
.masthead__in{display:flex;align-items:center;gap:1.4rem;height:64px}
.brand{display:flex;align-items:center;gap:.62rem;flex:0 0 auto}
.brand__mark{width:30px;height:30px;flex:0 0 auto}
.brand__name{font-family:var(--serif);font-size:1.16rem;font-weight:600;color:#fff;letter-spacing:.06em}
.brand__name span{color:var(--sakura-400)}
.brand__sub{font-family:var(--mono);font-size:.6rem;letter-spacing:.16em;color:var(--fg-mute);display:block;margin-top:-4px}

.nav{margin-left:auto;display:flex;align-items:center;gap:.1rem}
.nav a{
  font-size:.875rem;color:var(--fg-dim);padding:.46rem .6rem;border-radius:var(--r-s);
  position:relative;white-space:nowrap;transition:color .18s,background .18s;
}
.nav a:hover{color:#fff;background:rgba(255,255,255,.05)}
.nav a[aria-current="page"]{color:var(--sakura-300)}
.nav a[aria-current="page"]::after{
  content:"";position:absolute;left:.6rem;right:.6rem;bottom:.08rem;height:1.5px;
  background:var(--sakura-400);border-radius:2px;
}
.nav__sep{width:1px;height:16px;background:var(--line);margin:0 .45rem}

.burger{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:var(--r-s);
  width:40px;height:34px;cursor:pointer;color:var(--fg);align-items:center;justify-content:center}
.burger span,.burger span::before,.burger span::after{
  content:"";display:block;width:17px;height:1.5px;background:currentColor;border-radius:2px;position:relative}
.burger span::before{position:absolute;top:-5.5px}
.burger span::after{position:absolute;top:5.5px}

.drawer{display:none;border-top:1px solid var(--line-soft);background:var(--ink-850);padding:1rem 0 1.5rem}
.drawer.is-open{display:block}
.drawer__grp{margin-bottom:1rem}
.drawer__grp h5{margin:0 0 .35rem;font-family:var(--mono);font-size:.64rem;letter-spacing:.18em;
  text-transform:uppercase;color:var(--sakura-500);font-weight:400}
.drawer__grp a{display:block;padding:.45rem 0;color:var(--fg-dim);border-bottom:1px solid var(--line-soft);font-size:.95rem}

/* ---------- 5. 首屏 ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line-soft)}
.hero--cover{min-height:min(90vh,780px);display:flex;align-items:flex-end}
.hero__bg{position:absolute;inset:0;z-index:0}
.hero__bg img{width:100%;height:100%;object-fit:cover;object-position:62% 42%;filter:brightness(1.12) saturate(1.05)}
.hero__bg::after{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(100deg,rgba(14,11,17,.95) 0%,rgba(14,11,17,.82) 36%,rgba(14,11,17,.34) 66%,rgba(14,11,17,.1) 100%),
    linear-gradient(to top,var(--ink-900) 1%,rgba(16,13,19,0) 40%);
}
.hero--cover .hero__in{display:block;padding-block:clamp(3.4rem,12vw,8rem) clamp(2.4rem,5vw,3.6rem);max-width:calc(780px + 2 * clamp(1.1rem,4vw,2.4rem))}
.hero--cover .hero__lede{max-width:52ch}
#petals{position:absolute;inset:0;width:100%;height:100%;z-index:0;opacity:.75;pointer-events:none}
.hero__in{position:relative;z-index:2;padding-block:clamp(3.4rem,8vw,6.4rem) clamp(2.8rem,6vw,4.6rem);
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:clamp(1.8rem,4vw,3.6rem);align-items:center}
.hero__kicker{display:inline-flex;align-items:center;gap:.6rem;font-family:var(--mono);font-size:.68rem;
  letter-spacing:.2em;text-transform:uppercase;color:var(--sakura-400);
  border:1px solid var(--line);border-radius:100px;padding:.3rem .85rem;margin-bottom:1.3rem}
.hero__kicker b{color:var(--gold);font-weight:500}
.hero h1{margin-bottom:1.1rem}
.hero h1 .thin{font-weight:400;color:var(--fg-dim)}
.hero h1 em{color:var(--sakura-400)}
.hero__lede{font-size:clamp(1.02rem,.96rem + .35vw,1.19rem);color:var(--fg-dim);max-width:46ch;margin-bottom:1.8rem}
.hero__cta{display:flex;flex-wrap:wrap;gap:.7rem;margin-bottom:2.2rem}
.hero__stats{display:flex;flex-wrap:wrap;gap:1.6rem 2.4rem;border-top:1px solid var(--line);padding-top:1.3rem}
.hero__stats div{min-width:78px}
.hero__stats b{display:block;font-family:var(--serif);font-size:1.65rem;color:#fff;line-height:1.2}
.hero__stats span{font-family:var(--mono);font-size:.63rem;letter-spacing:.14em;text-transform:uppercase;color:var(--fg-mute)}

/* ---------- 6. 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:.5rem;font-size:.92rem;font-weight:600;
  padding:.68rem 1.25rem;border-radius:100px;border:1px solid transparent;cursor:pointer;
  font-family:var(--sans);transition:transform .16s,box-shadow .16s,background .16s,border-color .16s;
}
.btn:hover{transform:translateY(-1.5px)}
.btn--primary{background:linear-gradient(135deg,var(--sakura-400),var(--sakura-600));color:#2a0f19;
  box-shadow:0 10px 26px -14px rgba(242,112,143,.9)}
.btn--primary:hover{color:#2a0f19;box-shadow:0 14px 30px -12px rgba(242,112,143,.95)}
.btn--ghost{border-color:var(--line);color:var(--fg);background:rgba(255,255,255,.025)}
.btn--ghost:hover{border-color:var(--sakura-400);color:#fff;background:rgba(242,112,143,.08)}
.btn--sm{padding:.42rem .9rem;font-size:.82rem}
.btn[disabled]{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- 7. 网格与卡片 ---------- */
.grid{display:grid;gap:clamp(1rem,2vw,1.5rem)}
/* 网格项默认 min-width:auto 会被内部表格的最小宽度撑开，导致整页横向溢出 */
.grid > *{min-width:0}
.grid--2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.grid--3{grid-template-columns:repeat(auto-fit,minmax(265px,1fr))}
.grid--4{grid-template-columns:repeat(auto-fit,minmax(205px,1fr))}
.grid--sidebar{grid-template-columns:minmax(0,1fr) 274px;gap:clamp(1.6rem,4vw,3.4rem);align-items:start}

.card{
  background:linear-gradient(170deg,var(--ink-800),var(--ink-850) 70%);
  border:1px solid var(--line-soft);border-radius:var(--r-l);padding:1.5rem 1.5rem 1.6rem;
  position:relative;transition:border-color .2s,transform .2s,box-shadow .2s;
}
.card--link:hover{border-color:var(--line);transform:translateY(-3px);box-shadow:var(--shadow-lift)}
.card__idx{font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;color:var(--sakura-500);display:block;margin-bottom:.7rem}
.card h3{margin-bottom:.5rem;color:#fff}
.card h3 a{color:inherit}
.card p{color:var(--fg-dim);font-size:.95rem;margin-bottom:0}
.card__more{display:inline-flex;align-items:center;gap:.35rem;margin-top:1rem;font-size:.86rem;
  font-weight:600;color:var(--sakura-300)}
.card__more::after{content:"→";transition:transform .18s}
.card--link:hover .card__more::after{transform:translateX(4px)}
.card__tags{display:flex;flex-wrap:wrap;gap:.35rem;margin-top:1rem}

.tag{font-family:var(--mono);font-size:.66rem;letter-spacing:.07em;padding:.2rem .55rem;border-radius:100px;
  border:1px solid var(--line);color:var(--fg-mute);white-space:nowrap}
.tag--pink{color:var(--sakura-300);border-color:rgba(242,112,143,.4);background:rgba(242,112,143,.08)}
.tag--gold{color:var(--gold);border-color:rgba(232,200,140,.35);background:rgba(232,200,140,.07)}
.tag--leaf{color:var(--leaf);border-color:rgba(134,205,180,.35);background:rgba(134,205,180,.07)}

/* 带编号的大卡 */
.bigcard{display:grid;grid-template-columns:auto minmax(0,1fr);gap:1.3rem;align-items:start;
  padding:1.6rem;border:1px solid var(--line-soft);border-radius:var(--r-l);background:var(--ink-850)}
.bigcard__n{font-family:var(--serif);font-size:2.5rem;line-height:1;color:var(--ink-600);
  -webkit-text-stroke:1px var(--sakura-600);color:transparent}

/* ---------- 8. 取景框（示意图容器） ---------- */
.frame{
  position:relative;border-radius:var(--r-m);overflow:hidden;background:var(--ink-800);
  border:1px solid var(--line-soft);
}
/* height:auto 必须显式给出，否则 img 的 height 属性会让 aspect-ratio 失效 */
.frame__media{aspect-ratio:16/9;width:100%;height:auto;display:block;background:var(--ink-750);object-fit:cover}
.frame--square .frame__media{aspect-ratio:1/1}
.frame--tall .frame__media{aspect-ratio:4/5}
.frame__bar{
  display:flex;justify-content:space-between;align-items:center;gap:1rem;
  padding:.55rem .85rem;font-family:var(--mono);font-size:.67rem;letter-spacing:.1em;
  color:var(--fg-mute);border-top:1px solid var(--line-soft);background:rgba(0,0,0,.25);
}
.frame__bar b{color:var(--sakura-300);font-weight:500}
.frame__gate::before,.frame__gate::after{
  content:"";position:absolute;left:0;right:0;height:7.5%;background:var(--ink-900);z-index:2;opacity:.92}
.frame__gate::before{top:0}
.frame__gate::after{bottom:0}
.frame__tc{position:absolute;top:.6rem;right:.75rem;z-index:3;font-family:var(--mono);font-size:.64rem;
  letter-spacing:.1em;color:rgba(255,255,255,.72);background:rgba(0,0,0,.45);padding:.1rem .4rem;border-radius:3px}
figure{margin:0}
figcaption{font-size:.84rem;color:var(--fg-mute);margin-top:.6rem;line-height:1.65}
figcaption b{color:var(--fg-dim)}

/* ---------- 9. 正文排版（长文页） ---------- */
.prose{max-width:none}
.prose h2{margin:3rem 0 1rem;padding-top:.4rem;position:relative}
.prose h2:first-child{margin-top:0}
.prose h2::before{content:"";position:absolute;top:-.6rem;left:0;width:34px;height:2px;background:var(--sakura-500)}
.prose h3{margin:2.1rem 0 .7rem;color:#fff}
.prose h4{margin:1.5rem 0 .4rem;color:var(--sakura-200)}
.prose > p,.prose > ul,.prose > ol{color:var(--fg-dim)}
.prose figure{margin:1.8rem 0}
.prose blockquote{
  margin:1.8rem 0;padding:1.1rem 1.4rem;border-left:2px solid var(--sakura-500);
  background:rgba(242,112,143,.055);border-radius:0 var(--r-m) var(--r-m) 0;color:var(--fg);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose blockquote cite{display:block;margin-top:.5rem;font-style:normal;font-family:var(--mono);
  font-size:.7rem;letter-spacing:.1em;color:var(--fg-mute)}

/* 侧栏目录 */
.toc{position:sticky;top:88px;font-size:.88rem;border-left:1px solid var(--line-soft);padding-left:1.1rem}
.toc__t{font-family:var(--mono);font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--fg-mute);margin-bottom:.8rem}
.toc a{display:block;padding:.3rem 0;color:var(--fg-mute);border-left:2px solid transparent;
  margin-left:-1.1rem;padding-left:1.1rem;transition:color .15s,border-color .15s}
.toc a:hover{color:var(--fg)}
.toc a.is-active{color:var(--sakura-300);border-left-color:var(--sakura-400)}

/* ---------- 10. 提示块 ---------- */
.note{
  border:1px solid var(--line-soft);border-radius:var(--r-m);padding:1.1rem 1.25rem;margin:1.6rem 0;
  background:var(--ink-850);font-size:.95rem;
}
.note__t{display:flex;align-items:center;gap:.5rem;font-weight:650;color:#fff;margin-bottom:.45rem;font-size:.95rem}
.note__t::before{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;padding:.12rem .45rem;
  border-radius:3px;text-transform:uppercase}
.note p:last-child{margin-bottom:0}
.note--tip{border-left:2px solid var(--leaf)}
.note--tip .note__t::before{content:"TIP";background:rgba(134,205,180,.16);color:var(--leaf)}
.note--warn{border-left:2px solid var(--gold)}
.note--warn .note__t::before{content:"注意";background:rgba(232,200,140,.16);color:var(--gold)}
.note--err{border-left:2px solid var(--sakura-500)}
.note--err .note__t::before{content:"常见错误";background:rgba(242,112,143,.16);color:var(--sakura-300)}

/* ---------- 11. 表格 ---------- */
.tablewrap{overflow-x:auto;margin:1.6rem 0;border:1px solid var(--line-soft);border-radius:var(--r-m)}
table{width:100%;border-collapse:collapse;font-size:.9rem;min-width:420px}
thead th{
  text-align:left;font-family:var(--mono);font-size:.66rem;letter-spacing:.13em;text-transform:uppercase;
  color:var(--sakura-400);font-weight:400;padding:.75rem .9rem;background:var(--ink-750);
  border-bottom:1px solid var(--line);white-space:nowrap;
}
tbody td{padding:.72rem .9rem;border-bottom:1px solid var(--line-soft);color:var(--fg-dim);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:rgba(255,255,255,.022)}
tbody td:first-child{color:#fff;font-weight:600;white-space:nowrap}
td .mono,.mono{font-family:var(--mono);font-size:.88em}

/* ---------- 12. 时间轴 / 阶段 ---------- */
.stages{display:grid;gap:0;counter-reset:st}
.stage{display:grid;grid-template-columns:120px minmax(0,1fr);gap:1.6rem;padding:1.5rem 0;
  border-top:1px solid var(--line-soft);position:relative}
.stage:last-child{border-bottom:1px solid var(--line-soft)}
.stage__key{position:relative}
.stage__day{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;color:var(--sakura-500);display:block}
.stage__name{font-family:var(--serif);font-size:1.3rem;color:#fff;display:block;margin-top:.15rem}
.stage__bar{height:3px;border-radius:2px;margin-top:.7rem;background:var(--ink-700);overflow:hidden}
.stage__bar i{display:block;height:100%;background:linear-gradient(90deg,var(--sakura-600),var(--sakura-300))}
.stage h4{margin:.9rem 0 .3rem;color:var(--sakura-200)}
.stage p{color:var(--fg-dim);font-size:.95rem}
.stage ul{color:var(--fg-dim);font-size:.95rem;margin-bottom:.5rem}

/* ---------- 13. 筛选器 ---------- */
.filters{display:flex;flex-wrap:wrap;gap:1.2rem;align-items:flex-end;padding:1.2rem 1.3rem;
  background:var(--ink-850);border:1px solid var(--line-soft);border-radius:var(--r-m);margin-bottom:1.8rem}
.filtergrp{display:flex;flex-direction:column;gap:.5rem}
.filtergrp > span{font-family:var(--mono);font-size:.64rem;letter-spacing:.15em;text-transform:uppercase;color:var(--fg-mute)}
.chips{display:flex;flex-wrap:wrap;gap:.4rem}
.chip{font-size:.82rem;padding:.33rem .8rem;border-radius:100px;border:1px solid var(--line);
  background:transparent;color:var(--fg-dim);cursor:pointer;font-family:var(--sans);transition:.16s}
.chip:hover{color:#fff;border-color:var(--sakura-500)}
.chip[aria-pressed="true"]{background:var(--sakura-400);border-color:var(--sakura-400);color:#2a0f19;font-weight:600}
.filters__count{margin-left:auto;font-family:var(--mono);font-size:.74rem;color:var(--fg-mute);letter-spacing:.08em}
.is-hidden{display:none !important}
.emptystate{padding:3rem 1rem;text-align:center;color:var(--fg-mute);border:1px dashed var(--line);border-radius:var(--r-m)}

/* ---------- 14. 场景卡 ---------- */
.scene{background:var(--ink-850);border:1px solid var(--line-soft);border-radius:var(--r-l);
  overflow:hidden;display:flex;flex-direction:column;transition:border-color .2s,transform .2s}
.scene:hover{border-color:var(--line);transform:translateY(-3px)}
.scene__art{aspect-ratio:16/10;background:var(--ink-800);position:relative}
.scene__art svg{width:100%;height:100%}
.scene__diff{position:absolute;bottom:.6rem;left:.7rem;font-family:var(--mono);font-size:.63rem;
  letter-spacing:.1em;padding:.15rem .5rem;border-radius:3px;background:rgba(0,0,0,.6);color:var(--fg-dim)}
.scene__body{padding:1.25rem 1.3rem 1.45rem;flex:1;display:flex;flex-direction:column}
.scene__body h3{font-size:1.18rem;color:#fff;margin-bottom:.4rem}
.scene__body > p{font-size:.92rem;color:var(--fg-dim);margin-bottom:.9rem}
.scene dl{margin:0 0 1rem;display:grid;grid-template-columns:auto minmax(0,1fr);gap:.3rem .8rem;font-size:.86rem}
.scene dt{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--fg-mute);padding-top:.25rem}
.scene dd{margin:0;color:var(--fg-dim)}
.scene__shots{margin-top:auto;padding-top:.9rem;border-top:1px solid var(--line-soft)}
.scene__shots b{display:block;font-size:.8rem;color:var(--sakura-300);margin-bottom:.35rem;
  font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;font-weight:400}
.scene__shots ol{margin:0;padding-left:1.2rem;font-size:.88rem;color:var(--fg-dim)}

/* ---------- 15. 工具面板 ---------- */
.tool{background:linear-gradient(170deg,var(--ink-800),var(--ink-850));border:1px solid var(--line);
  border-radius:var(--r-l);padding:1.6rem;margin:1.8rem 0}
.tool__head{display:flex;align-items:baseline;gap:.8rem;flex-wrap:wrap;margin-bottom:.5rem}
.tool__head h3{color:#fff;margin:0}
.tool__head .tag{margin-left:auto}
.tool > p{color:var(--fg-dim);font-size:.93rem}
.tool__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1rem;margin:1.3rem 0}
.field{display:flex;flex-direction:column;gap:.35rem}
.field label{font-family:var(--mono);font-size:.66rem;letter-spacing:.13em;text-transform:uppercase;color:var(--fg-mute)}
.field input,.field select{
  background:var(--ink-900);border:1px solid var(--line);border-radius:var(--r-s);color:#fff;
  padding:.55rem .7rem;font-family:var(--mono);font-size:.95rem;width:100%;
}
.field input:focus,.field select:focus{border-color:var(--sakura-400);outline:none}
.field small{color:var(--fg-mute);font-size:.74rem;line-height:1.5}
.out{
  background:var(--ink-900);border:1px solid var(--line);border-radius:var(--r-m);padding:1.15rem 1.25rem;
  display:grid;gap:.9rem;
}
.out__row{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap}
.out__row > span{font-size:.86rem;color:var(--fg-mute)}
.out__row > b{font-family:var(--mono);font-size:1.22rem;color:var(--sakura-300);font-weight:500}
.out__row--big > b{font-size:1.7rem;color:#fff}
.out__note{font-size:.86rem;color:var(--fg-dim);border-top:1px solid var(--line-soft);padding-top:.8rem;line-height:1.7}
.out__note strong{color:var(--gold)}

/* 选择题式自检 */
.quiz{display:grid;gap:.6rem;margin:1.2rem 0}
.quiz__q{font-weight:650;color:#fff;margin-bottom:.2rem}
.opt{display:flex;gap:.7rem;align-items:flex-start;padding:.7rem .9rem;border:1px solid var(--line-soft);
  border-radius:var(--r-m);cursor:pointer;background:var(--ink-900);transition:.16s;font-size:.93rem}
.opt:hover{border-color:var(--sakura-500)}
.opt input{margin-top:.35rem;accent-color:var(--sakura-400);flex:0 0 auto}
.opt span{color:var(--fg-dim)}
.opt b{color:#fff;display:block;font-size:.95rem}

/* ---------- 16. 清单（分镜） ---------- */
.checklist{display:grid;gap:.5rem;margin:1.2rem 0}
.ck{display:grid;grid-template-columns:auto minmax(0,1fr) auto;gap:.8rem;align-items:start;
  padding:.8rem 1rem;background:var(--ink-850);border:1px solid var(--line-soft);border-radius:var(--r-m);
  transition:opacity .2s,border-color .2s}
.ck input{margin-top:.3rem;accent-color:var(--sakura-400);width:16px;height:16px;flex:0 0 auto}
.ck b{display:block;color:#fff;font-size:.95rem;font-weight:600}
.ck p{margin:.2rem 0 0;font-size:.86rem;color:var(--fg-mute);line-height:1.6}
.ck .mono{color:var(--sakura-400);font-size:.72rem;letter-spacing:.08em;white-space:nowrap;padding-top:.25rem}
.ck.is-done{opacity:.42}
.ck.is-done b{text-decoration:line-through}
.progress{height:5px;border-radius:3px;background:var(--ink-700);overflow:hidden;margin:.7rem 0 1.4rem}
.progress i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--sakura-600),var(--sakura-300));transition:width .3s}

/* ---------- 17. 调色对比滑块 ---------- */
.ba{position:relative;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line-soft);
  aspect-ratio:16/9;background:var(--ink-800);cursor:ew-resize;touch-action:none}
.ba{user-select:none}
.ba__layer{position:absolute;inset:0}
.ba__layer img{-webkit-user-drag:none;user-drag:none;pointer-events:none}
.ba__layer svg{width:100%;height:100%}
.ba__after{clip-path:inset(0 0 0 50%)}
.ba__handle{position:absolute;top:0;bottom:0;left:50%;width:2px;background:rgba(255,255,255,.85);z-index:4;
  transform:translateX(-1px);pointer-events:none}
.ba__handle::after{content:"";position:absolute;top:50%;left:50%;width:34px;height:34px;transform:translate(-50%,-50%);
  border:2px solid #fff;border-radius:50%;background:rgba(0,0,0,.35);backdrop-filter:blur(2px)}
.ba__tagl,.ba__tagr{position:absolute;bottom:.6rem;z-index:5;font-family:var(--mono);font-size:.64rem;
  letter-spacing:.12em;background:rgba(0,0,0,.55);color:#fff;padding:.15rem .5rem;border-radius:3px}
.ba__tagl{left:.6rem}.ba__tagr{right:.6rem}

/* 色卡 */
.swatches{display:grid;grid-template-columns:repeat(auto-fit,minmax(104px,1fr));gap:.7rem;margin:1.3rem 0}
.sw{border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line-soft)}
.sw i{display:block;height:62px}
.sw span{display:block;padding:.45rem .55rem;font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;
  color:var(--fg-mute);background:var(--ink-850);line-height:1.5}
.sw span b{display:block;color:var(--fg);font-size:.72rem;font-weight:500}

/* ---------- 18. 页脚 ---------- */
.foot{border-top:1px solid var(--line-soft);background:var(--ink-850);padding:3rem 0 2rem;margin-top:0}
.foot__in{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:2rem}
.foot h5{font-family:var(--mono);font-size:.66rem;letter-spacing:.16em;text-transform:uppercase;
  color:var(--sakura-500);margin:0 0 .8rem;font-weight:400}
.foot a{display:block;color:var(--fg-mute);font-size:.88rem;padding:.2rem 0}
.foot a:hover{color:var(--fg)}
.foot__brand p{color:var(--fg-mute);font-size:.86rem;max-width:34ch;margin:.8rem 0 0}
.foot__base{margin-top:2.4rem;padding-top:1.4rem;border-top:1px solid var(--line-soft);
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  font-family:var(--mono);font-size:.7rem;letter-spacing:.08em;color:var(--fg-mute)}

/* ---------- 19. 跨页小件 ---------- */
.pagehead{padding:clamp(2.6rem,6vw,4.4rem) 0 clamp(1.6rem,3vw,2.4rem);border-bottom:1px solid var(--line-soft);
  position:relative;overflow:hidden}
.pagehead h1{margin-bottom:.9rem}
.crumbs{font-family:var(--mono);font-size:.68rem;letter-spacing:.12em;color:var(--fg-mute);margin-bottom:1.1rem}
.crumbs a{color:var(--fg-mute)}
.crumbs a:hover{color:var(--sakura-300)}
.crumbs span{margin:0 .45rem;opacity:.5}
.meta{display:flex;flex-wrap:wrap;gap:.6rem 1.4rem;margin-top:1.3rem;font-family:var(--mono);
  font-size:.7rem;letter-spacing:.1em;color:var(--fg-mute)}
.meta b{color:var(--sakura-300);font-weight:500}

.nextprev{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin-top:3rem}
.nextprev a{border:1px solid var(--line-soft);border-radius:var(--r-m);padding:1.1rem 1.25rem;background:var(--ink-850)}
.nextprev a:hover{border-color:var(--sakura-500)}
.nextprev span{display:block;font-family:var(--mono);font-size:.64rem;letter-spacing:.14em;
  text-transform:uppercase;color:var(--fg-mute);margin-bottom:.3rem}
.nextprev b{color:#fff;font-family:var(--serif);font-size:1.08rem;font-weight:600}

/* 关键数字排版 */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--line-soft);
  border:1px solid var(--line-soft);border-radius:var(--r-m);overflow:hidden;margin:1.8rem 0}
.kpis div{background:var(--ink-850);padding:1.2rem 1.2rem 1.3rem}
.kpis b{display:block;font-family:var(--serif);font-size:1.9rem;color:var(--sakura-300);line-height:1.1}
.kpis span{display:block;font-size:.84rem;color:var(--fg-mute);margin-top:.3rem}

/* 对照两列 */
.vs{display:grid;grid-template-columns:repeat(auto-fit,minmax(255px,1fr));gap:1rem;margin:1.6rem 0}
.vs > div{border:1px solid var(--line-soft);border-radius:var(--r-m);padding:1.2rem 1.3rem;background:var(--ink-850)}
.vs h4{margin:0 0 .6rem;display:flex;align-items:center;gap:.5rem}
.vs--bad{border-left:2px solid var(--sakura-600)}
.vs--good{border-left:2px solid var(--leaf)}
.vs ul{margin:0;font-size:.92rem;color:var(--fg-dim)}

/* 滚动揭示 */
html.js .reveal{opacity:0;transform:translateY(16px)}
html.js .reveal.is-in{opacity:1;transform:none;transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1)}

/* 跳转到内容 */
.skip{position:absolute;left:-9999px;top:0;background:var(--sakura-400);color:#2a0f19;padding:.6rem 1rem;z-index:99;border-radius:0 0 var(--r-s) 0}
.skip:focus{left:0}

/* ---------- 20. 响应式 ---------- */
@media (max-width:1040px){
  .nav{display:none}
  .burger{display:flex}
  .hero__in{grid-template-columns:1fr;gap:2.2rem}
  .grid--sidebar{grid-template-columns:1fr}
  .toc{position:static;border-left:0;padding-left:0;border-top:1px solid var(--line-soft);padding-top:1.2rem;
    display:flex;flex-wrap:wrap;gap:.3rem 1rem}
  .toc__t{width:100%;margin-bottom:.2rem}
  .toc a{margin-left:0;padding-left:0;border-left:0}
  .toc a.is-active{border-left:0}
  .foot__in{grid-template-columns:repeat(2,minmax(0,1fr));gap:1.8rem}
}
@media (max-width:680px){
  body{font-size:16px;line-height:1.8}
  .stage{grid-template-columns:1fr;gap:.5rem}
  .stage__key{display:flex;align-items:baseline;gap:.8rem;flex-wrap:wrap}
  .stage__bar{width:100%;order:3}
  .bigcard{grid-template-columns:1fr;gap:.6rem}
  .filters{flex-direction:column;align-items:stretch;gap:1rem}
  .filters__count{margin-left:0}
  .hero__stats{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:1.1rem 1.4rem}
  .hero__stats b{font-size:1.45rem}
  .foot__in{grid-template-columns:1fr}
  .out__row > b{font-size:1.1rem}
  .out__row--big > b{font-size:1.45rem}
  table{font-size:.86rem}
}

/* ---------- 21. 动效偏好 / 打印 ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  #petals{display:none}
}
@media print{
  body{background:#fff;color:#000;font-size:11pt}
  body::before,#petals,.masthead,.foot,.nextprev,.btn,.toc,.filters{display:none !important}
  .ck{break-inside:avoid;border:1px solid #bbb;background:#fff}
  .ck b,.ck p{color:#000}
  .ck .mono{color:#555}
  .card,.note,.tool,.out{border:1px solid #bbb;background:#fff;color:#000}
  h1,h2,h3,h4,strong,b{color:#000 !important}
  p,li,td{color:#222 !important}
  a{color:#000;text-decoration:underline}
  .shell{max-width:none;padding:0}
}

/* ---------- 22. 运镜图解 ---------- */
.moves{display:grid;grid-template-columns:repeat(auto-fit,minmax(272px,1fr));gap:clamp(1rem,2vw,1.4rem);margin:1.8rem 0}
.move{background:var(--ink-850);border:1px solid var(--line-soft);border-radius:var(--r-l);overflow:hidden;
  display:flex;flex-direction:column;transition:border-color .2s}
.move:hover{border-color:var(--line)}
.move__fig{background:#141019;border-bottom:1px solid var(--line-soft)}
.move__fig svg{width:100%;height:auto;display:block}
.move__b{padding:1.2rem 1.3rem 1.4rem;flex:1;display:flex;flex-direction:column}
.move__b h3{font-size:1.14rem;color:#fff;margin-bottom:.1rem}
.move__en{font-family:var(--mono);font-size:.63rem;letter-spacing:.16em;color:var(--sakura-500);
  text-transform:uppercase;display:block;margin-bottom:.6rem}
.move__b p{font-size:.92rem;color:var(--fg-dim);margin-bottom:.7rem}
.move__spec{margin-top:auto;padding-top:.8rem;border-top:1px solid var(--line-soft);
  display:grid;grid-template-columns:auto 1fr;gap:.25rem .7rem;font-size:.84rem}
.move__spec dt{font-family:var(--mono);font-size:.63rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--fg-mute);padding-top:.2rem}
.move__spec dd{margin:0;color:var(--fg-dim)}
.mv-path{stroke-dasharray:7 6;animation:mvrun 1.6s linear infinite}
@keyframes mvrun{to{stroke-dashoffset:-26}}

/* ---------- 23. 时间线（剪辑结构） ---------- */
.tl{border:1px solid var(--line-soft);border-radius:var(--r-m);overflow:hidden;margin:1.5rem 0;background:var(--ink-850)}
.tl__head{display:flex;justify-content:space-between;align-items:baseline;gap:1rem;flex-wrap:wrap;
  padding:.85rem 1.1rem;border-bottom:1px solid var(--line-soft);background:var(--ink-800)}
.tl__head b{color:#fff;font-size:.98rem}
.tl__head span{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;color:var(--fg-mute)}
.tl__track{display:flex;height:42px;gap:2px;padding:10px 10px 0}
.tl__seg{position:relative;border-radius:3px 3px 0 0;display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:.63rem;color:#1a0f14;font-weight:600;overflow:hidden;white-space:nowrap}
.tl__ruler{display:flex;padding:0 10px 10px;gap:2px;border-bottom:1px solid var(--line-soft)}
.tl__ruler i{font-family:var(--mono);font-size:.6rem;color:var(--fg-mute);font-style:normal;
  border-top:1px solid var(--line);padding-top:4px;text-align:center}
.tl__rows{padding:.4rem 1.1rem 1rem}
.tl__row{display:grid;grid-template-columns:62px 92px minmax(0,1fr);gap:.9rem;padding:.6rem 0;
  border-bottom:1px solid var(--line-soft);font-size:.9rem;align-items:start}
.tl__row:last-child{border-bottom:0}
.tl__row b{font-family:var(--mono);font-size:.74rem;color:var(--sakura-400);font-weight:500;padding-top:.15rem}
.tl__row em{font-style:normal;color:#fff;font-weight:600;font-size:.9rem}
.tl__row span{color:var(--fg-dim)}
@media (max-width:560px){
  .tl__row{grid-template-columns:56px minmax(0,1fr);gap:.4rem .8rem}
  .tl__row span{grid-column:1 / -1}
}