/* ============================================================
   AI 机会地图 · Editorial 设计系统
   ----------------------------------------------------
   依赖 tokens-editorial.css（变量基座）。
   全站统一：对齐 Method DS v4.5「Warm Editorial」——暖纸底 + Instrument Serif + 海军墨 + 砖橙 accent，
   四步分色取自 9 模块锁定柔色盘（lilac/mint/butter/sky）。
   浅 / 深双主题，data-theme="light|dark"。
============================================================ */

/* DS 圆角刻度（与 tokens.css 对齐）*/
:root { --r-chip: 8px; --r-input: 10px; --r-card: 20px; --r-bento: 28px; --r-pill: 9999px; }

:root[data-theme="light"] {
  /* ★ 对齐 Method DS v4.5「Warm Editorial」(tokens.css)：暖纸 + 海军墨 + 砖橙 */
  --bg-1: #f5f2ec;          /* cream 暖纸主背景 */
  --bg-2: #fafaf3;          /* cream-soft 卡片底 */
  --bg-3: #ebe5d3;          /* cream-warm 层次 */
  --fill-1: rgba(26,43,74,0.05);
  --bg-dark: #0f1a30;       /* 深海军 */
  --bg-elevated: rgba(250,250,243,0.7);

  --tx-1: rgba(26,43,74,0.96);   /* ink 海军墨 */
  --tx-2: rgba(26,43,74,0.72);
  --tx-3: rgba(26,43,74,0.55);
  --tx-4: rgba(26,43,74,0.30);

  --border-1: rgba(26,43,74,0.08);
  --border-2: rgba(26,43,74,0.15);
  --border-3: rgba(26,43,74,0.28);

  --accent: #e84f1f;        /* 砖橙 · 唯一品牌色 */
  --accent-deep: #c93e16;   /* hover/按压 */
  --accent-bg: #fae5d8;     /* accent-pale */
  --accent-soft: #fef4ee;
  --grain-opacity: 0.045;

  --nav-bg: rgba(245,242,236,0.82);
  --shadow-card: 0 2px 8px -2px rgba(26,43,74,0.06);
  --shadow-card-hover: 0 2px 0 rgba(26,43,74,0.10), 0 20px 48px -14px rgba(26,43,74,0.18);

  /* 四步分色 · 取自 Method DS 八粉彩（deep 文字 + tint 软底，与暖底同色温）*/
  --s1: #6f57b0; --s1-soft: #dccff5; --s1-ink: #2c2450;   /* 识别 lilac */
  --s2: #4a8a52; --s2-soft: #d0f0c2; --s2-ink: #244830;   /* 定义 mint */
  --s3: #9a7414; --s3-soft: #faf0c0; --s3-ink: #3c3818;   /* 评估 butter */
  --s4: #3f6f9c; --s4-soft: #d4e6f0; --s4-ink: #1c3450;   /* 路径 sky */
  --risk: #b2492f; --risk-soft: #f4e2da; --risk-ink: #4e2c1e; /* 风险 danger 陶土 */
  --gold: #e84f1f; --gold-soft: #fae5d8;                  /* 黄金象限 = 品牌橙 */
}

:root[data-theme="dark"] {
  /* 对齐 Method DS 暗版：深海军 + 暖白 + 亮橙 */
  --bg-1: #0d1b2a;
  --bg-2: #132236;
  --bg-3: #0f1e30;
  --bg-dark: #060f1c;
  --fill-1: rgba(236,234,226,0.06);
  --bg-elevated: rgba(236,234,226,0.05);

  --tx-1: rgba(236,234,226,0.92);
  --tx-2: rgba(236,234,226,0.62);
  --tx-3: rgba(236,234,226,0.50);
  --tx-4: rgba(236,234,226,0.28);

  --border-1: rgba(236,234,226,0.10);
  --border-2: rgba(236,234,226,0.18);
  --border-3: rgba(236,234,226,0.30);

  --accent: #f06030;
  --accent-deep: #e84f1f;
  --accent-bg: rgba(240,96,48,0.18);
  --accent-soft: rgba(240,96,48,0.10);
  --grain-opacity: 0.03;

  --nav-bg: rgba(13,27,42,0.88);
  --shadow-card: 0 2px 12px -2px rgba(0,0,0,0.40);
  --shadow-card-hover: 0 20px 50px -20px rgba(0,0,0,0.60);

  --s1: #b9a0ea; --s1-soft: rgba(160,130,240,0.16); --s1-ink: #dccff5;
  --s2: #8fc28f; --s2-soft: rgba(120,220,140,0.14); --s2-ink: #d0f0c2;
  --s3: #e3bb4f; --s3-soft: rgba(220,200,80,0.14);  --s3-ink: #faf0c0;
  --s4: #7fb0d6; --s4-soft: rgba(100,180,240,0.14); --s4-ink: #d4e6f0;
  --risk: #e8714c; --risk-soft: rgba(230,90,50,0.16); --risk-ink: #f4e2da;
  --gold: #f06030; --gold-soft: rgba(240,96,48,0.18);
}

/* ── Reset + base ─────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  transition: background-color 320ms ease, color 320ms ease;
}
body {
  background: var(--bg-1);
  color: var(--tx-1);
  font-family: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'PingFang SC', 'Microsoft YaHei', sans-serif;
  font-size: 17.5px;
  line-height: 1.72;
  letter-spacing: 0;
  font-feature-settings: 'ss01';
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  transition: background-color 320ms ease, color 320ms ease;
}
a { color: inherit; text-decoration: none; transition: color 200ms ease; }
img, svg { display: block; max-width: 100%; }
::selection { background: var(--accent-bg); color: var(--tx-1); }

/* DS 招牌：整页纸张颗粒纹理 */
body::after {
  content: ""; position: fixed; inset: 0; z-index: 100; pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 160px 160px;
  mix-blend-mode: multiply;
}
:root[data-theme="dark"] body::after { mix-blend-mode: screen; }

/* 强调：直立 + 暖色（不用斜体） */
i, em { font-style: normal; color: var(--accent); font-weight: 500; }
.emp { font-style: normal; color: var(--accent); font-weight: 500; }
.it-mark { font-style: italic; }

/* 衬线大字里的拉丁词光学补偿 */
.en {
  font-style: normal;
  letter-spacing: 0.06em;
  padding-right: 0.02em;
  font-feature-settings: 'lnum';
}

/* ── Display 字体栈 ─────────────────────── */
.display-font, .h-display, .h1, .h2, .h3 {
  font-family: 'Instrument Serif', 'PingFang SC', 'Hiragino Sans GB', serif;
  font-weight: 600;
  letter-spacing: -0.012em;   /* DS --ls-tight */
  color: var(--tx-1);
  text-wrap: balance;
}
.h-display, .h1, .h2 { font-weight: 700; }   /* DS display/h1/h2 = bold（中文回落 PingFang Bold）*/
.h-display { font-size: clamp(40px, 5.6vw, 64px); line-height: 1.13; }
.h1 { font-size: clamp(32px, 4vw, 48px); line-height: 1.15; }
.h2 { font-size: clamp(26px, 3.2vw, 38px); line-height: 1.2; max-width: 760px; }
.h3 { font-size: 22px; line-height: 1.3; }

/* ── Layout ─────────────────────── */
.container { max-width: 1180px; margin: 0 auto; padding: 0 32px; }
.container--narrow { max-width: 780px; }
.section { padding: 88px 0; position: relative; }
.section--alt { background: var(--bg-3); }
.section--dark { background: var(--bg-dark); color: rgba(245,244,238,0.85); }
.section--dark .h2, .section--dark .h3, .section--dark .h-display { color: #f5f4ee; }
@media (max-width: 640px) { .container { padding: 0 20px; } .section { padding: 60px 0; } }

/* ── Typography helpers ─────────────────────── */
.label {
  display: inline-flex; align-items: center; gap: 12px;
  font-family: 'JetBrains Mono', 'SF Mono', monospace;   /* DS eyebrow = mono */
  font-size: 13px; line-height: 16px; font-weight: 500;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--accent);
}
.label::before { content: ""; display: inline-block; width: 24px; height: 1px; background: var(--accent); }
.lede { font-size: 20px; line-height: 1.65; color: var(--tx-2); max-width: 640px; }
.body { font-size: 17px; line-height: 1.75; color: var(--tx-1); }
.body-sm { font-size: 15px; line-height: 1.6; color: var(--tx-2); }
.mono { font-family: 'JetBrains Mono', 'IBM Plex Mono', 'SF Mono', monospace; font-size: 12px; letter-spacing: 0.04em; }

/* ── Buttons · pill + 1.5s sweep ─────────────────────── */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 22px; font-size: 14px; line-height: 17px; font-weight: 600;
  letter-spacing: 0.28px; text-transform: uppercase;
  border-radius: 9999px; border: 1px solid var(--tx-1);
  background: transparent; color: var(--tx-1);
  cursor: pointer; overflow: hidden; white-space: nowrap;
  transition: background 220ms ease, color 220ms ease, border-color 220ms ease, opacity 220ms ease;
  font-family: 'Inter', 'PingFang SC', sans-serif;
}
.btn--lg { padding: 16px 28px; font-size: 15px; }
.btn--sm { padding: 10px 16px; font-size: 12px; }
.btn::before {
  content: ""; position: absolute; top: 0; left: -100%; width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.22), transparent);
  pointer-events: none; transition: left 0s;
}
.btn:hover::before { left: 100%; transition: left 1500ms ease; }
.btn--solid { background: var(--tx-1); color: var(--bg-1); border-color: var(--tx-1); }
.btn--solid:hover { opacity: 0.88; }
.btn--accent { background: var(--accent); color: #fff; border-color: var(--accent); }
.btn--accent:hover { background: var(--accent-deep); border-color: var(--accent-deep); color: #fff; }
.btn--ghost { color: var(--tx-1); border-color: var(--border-3); }
.btn--ghost:hover { background: var(--tx-1); color: var(--bg-1); border-color: var(--tx-1); }
.btn .arrow { display: inline-block; transition: transform 200ms ease; }
.btn:hover .arrow { transform: translateX(3px); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }
.btn:disabled::before { display: none; }

/* ── Top nav ─────────────────────── */
.topnav {
  position: sticky; top: 0; z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid var(--border-1);
  padding: 13px 0;
  transition: background-color 320ms ease, border-color 320ms ease;
}
.topnav__inner {
  max-width: 1280px; margin: 0 auto; padding: 0 32px;
  display: flex; align-items: center; justify-content: space-between; gap: 24px;
}
.topnav__brand {
  font-family: 'Instrument Serif', 'PingFang SC', 'Hiragino Sans GB', serif; font-weight: 500;
  font-size: 18px; color: var(--tx-1);
  display: flex; align-items: baseline; gap: 7px; letter-spacing: -0.01em;
}
.topnav__brand .dot { color: var(--accent); }
.topnav__nav { display: flex; gap: 26px; align-items: center; }
.topnav__nav a { color: var(--tx-2); font-size: 13px; font-weight: 500; }
.topnav__nav a:hover { color: var(--tx-1); }
.topnav__actions { display: flex; align-items: center; gap: 12px; }
.theme-toggle {
  width: 34px; height: 34px; border-radius: 9999px;
  border: 1px solid var(--border-2); background: transparent; color: var(--tx-2);
  cursor: pointer; display: grid; place-items: center;
  transition: all 200ms ease; flex-shrink: 0;
}
.theme-toggle:hover { background: var(--bg-2); color: var(--tx-1); border-color: var(--border-3); }
.theme-toggle svg { width: 16px; height: 16px; transition: transform 320ms ease; }
:root[data-theme="light"] .theme-toggle .icon-moon { display: block; }
:root[data-theme="light"] .theme-toggle .icon-sun  { display: none; }
:root[data-theme="dark"]  .theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"]  .theme-toggle .icon-sun  { display: block; }
.theme-toggle:hover svg { transform: rotate(20deg); }
@media (max-width: 820px) { .topnav__nav { display: none; } }

/* ── Reveal ─────────────────────── */
.reveal {
  opacity: 0; transform: translate3d(0, 22px, 0);
  transition: opacity 700ms cubic-bezier(0.22,0.61,0.36,1), transform 700ms cubic-bezier(0.22,0.61,0.36,1);
}
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1 !important; transform: none !important; }
}

/* ============================================================
   HERO
============================================================ */
.hero { padding: 116px 0 64px; }
.hero__inner { max-width: 860px; }
.hero__headline { margin: 22px 0 26px; }
.hero__lede { margin-bottom: 32px; }
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; }
@media (max-width: 768px) { .hero { padding: 72px 0 48px; } }

/* 机会公式 chip 行 */
.formula {
  display: inline-flex; align-items: center; gap: 12px; flex-wrap: wrap;
  padding: 16px 20px; background: var(--bg-2);
  border: 1px solid var(--border-1); border-radius: var(--r-card);
  box-shadow: var(--shadow-card);
}
.f-chip { padding: 7px 15px; border-radius: 8px; font-weight: 500; font-size: 14px; }
.f-result { background: var(--accent-bg); color: var(--accent); }
.f-d { background: var(--s2-soft); color: var(--s2); }
.f-a { background: var(--s3-soft); color: var(--s3); }
.f-c { background: var(--s4-soft); color: var(--s4); }
.f-op { color: var(--tx-3); font-family: 'JetBrains Mono', monospace; font-size: 15px; }

/* ============================================================
   FLOW · 四步流程可视化
============================================================ */
.flow {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  margin-top: 8px;
}
.flow__step {
  position: relative; padding: 26px 22px;
  border: 1px solid var(--border-1); border-right: none;
  background: var(--bg-2);
  transition: background 200ms ease, transform 200ms ease;
}
.flow__step:first-child { border-radius: 16px 0 0 16px; }
.flow__step:last-child { border-right: 1px solid var(--border-1); border-radius: 0 16px 16px 0; }
.flow__step::after {
  content: "→"; position: absolute; right: -11px; top: 50%; z-index: 2;
  transform: translateY(-50%);
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--bg-1); color: var(--tx-3);
  display: grid; place-items: center; font-size: 12px;
  font-family: 'JetBrains Mono', monospace;
}
.flow__step:last-child::after { display: none; }
.flow__step:hover { transform: translateY(-3px); z-index: 3; }
.flow__top { display: flex; align-items: baseline; gap: 10px; margin-bottom: 12px; }
.flow__num {
  font-family: 'Instrument Serif', 'PingFang SC', serif; font-weight: 500; font-size: 30px; line-height: 1;
}
.flow__tag {
  font-family: 'JetBrains Mono', monospace; font-size: 11px;
  letter-spacing: 0.1em; text-transform: uppercase; color: var(--tx-3);
}
.flow__title { font-family: 'Instrument Serif','PingFang SC','Hiragino Sans GB',serif; font-size: 20px; font-weight: 600; margin-bottom: 6px; }
.flow__q { font-size: 14px; color: var(--tx-2); line-height: 1.55; }
.flow__out {
  margin-top: 14px; padding-top: 12px; border-top: 1px solid var(--border-1);
  font-size: 11px; color: var(--tx-3); display: flex; align-items: center; gap: 6px;
}
.flow__out b { font-weight: 500; }
.fl-1 .flow__num, .fl-1 .flow__out b { color: var(--s1); }
.fl-2 .flow__num, .fl-2 .flow__out b { color: var(--s2); }
.fl-3 .flow__num, .fl-3 .flow__out b { color: var(--s3); }
.fl-4 .flow__num, .fl-4 .flow__out b { color: var(--s4); }
.fl-1:hover { background: var(--s1-soft); }
.fl-2:hover { background: var(--s2-soft); }
.fl-3:hover { background: var(--s3-soft); }
.fl-4:hover { background: var(--s4-soft); }
@media (max-width: 760px) {
  .flow { grid-template-columns: 1fr 1fr; }
  .flow__step:nth-child(2)::after, .flow__step:nth-child(2) { }
  .flow__step { border-right: 1px solid var(--border-1); border-bottom: none; }
  .flow__step:nth-child(1) { border-radius: 16px 0 0 0; }
  .flow__step:nth-child(2) { border-radius: 0 16px 0 0; }
  .flow__step:nth-child(3) { border-radius: 0 0 0 16px; border-top: none; }
  .flow__step:nth-child(4) { border-radius: 0 0 16px 0; border-top: none; }
  .flow__step::after { display: none; }
}
@media (max-width: 440px) { .flow { grid-template-columns: 1fr; } .flow__step { border-radius: 0 !important; border-right: 1px solid var(--border-1); border-bottom: none; } .flow__step:first-child { border-radius: 16px 16px 0 0 !important; } .flow__step:last-child { border-radius: 0 0 16px 16px !important; border-bottom: 1px solid var(--border-1); } }

/* 三圆交集（公式视觉化） */
.venn { display: flex; align-items: center; justify-content: center; padding: 8px 0; }
.venn svg { width: 100%; max-width: 460px; height: auto; }

/* ============================================================
   SECTION HEADER (四步详解)
============================================================ */
.s-head { display: flex; align-items: flex-start; gap: 20px; margin-bottom: 36px; }
.s-num {
  font-family: 'Instrument Serif', 'PingFang SC', serif; font-size: 52px; font-weight: 500; line-height: 0.9; min-width: 64px;
}
.s-head__wrap h2 { margin-bottom: 4px; }
.s-head__en { font-family: 'JetBrains Mono', monospace; font-size: 12.5px; color: var(--tx-3); letter-spacing: 0.12em; text-transform: uppercase; }
.s1 .s-num { color: var(--s1); }
.s2 .s-num { color: var(--s2); }
.s3 .s-num { color: var(--s3); }
.s4 .s-num { color: var(--s4); }

/* cards */
.card { background: var(--bg-2); border: 1px solid var(--border-1); border-radius: var(--r-card); padding: 26px; box-shadow: var(--shadow-card); }
.card-title { font-size: 12.5px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--tx-2); margin-bottom: 20px; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.three-col { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
@media (max-width: 800px) { .two-col, .three-col { grid-template-columns: 1fr; } }

/* 三层结构表 */
.layer-table { width: 100%; border-collapse: collapse; }
.layer-table th { font-size: 11px; font-weight: 500; color: var(--tx-3); text-align: left; padding: 0 0 10px; border-bottom: 1px solid var(--border-1); }
.layer-table td { padding: 15px 0; border-bottom: 1px solid var(--border-1); font-size: 13px; vertical-align: top; }
.layer-table tr:last-child td { border-bottom: none; padding-bottom: 0; }
.layer-badge { display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: 11px; font-weight: 500; padding: 3px 9px; border-radius: 6px; white-space: nowrap; }
.lb-1 { background: var(--s1-soft); color: var(--s1); }
.lb-2 { background: var(--s2-soft); color: var(--s2); }
.lb-3 { background: var(--s4-soft); color: var(--s4); }
.layer-name { font-weight: 500; color: var(--tx-1); font-size: 13px; margin-bottom: 3px; }
.layer-def { font-size: 12px; color: var(--tx-2); }
.layer-div { font-size: 12.5px; color: var(--tx-1); font-weight: 500; margin-bottom: 2px; }
.layer-q { font-size: 11px; color: var(--tx-3); }

/* 六大机会类型 */
.opp-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }
.opp { padding: 24px 22px; background: var(--bg-2); border-radius: var(--r-card); box-shadow: var(--shadow-card); transition: transform 220ms cubic-bezier(0.22,0.61,0.36,1), box-shadow 220ms ease; }
.opp:hover { transform: translateY(-4px); box-shadow: var(--shadow-card-hover); }
.opp-name { font-family: 'Instrument Serif','PingFang SC','Hiragino Sans GB',serif; font-size: 21px; font-weight: 600; color: var(--tx-1); margin-bottom: 8px; }
.opp-core { font-size: 14.5px; color: var(--tx-2); margin-bottom: 10px; }
.opp-q { font-size: 13.5px; color: var(--tx-3); padding-top: 10px; border-top: 1px solid var(--border-1); }
@media (max-width: 640px) { .opp-grid { grid-template-columns: 1fr 1fr; gap: 12px; } }
@media (max-width: 420px) { .opp-grid { grid-template-columns: 1fr; } }

/* insight box */
.insight { margin-top: 18px; padding: 20px 24px; background: var(--s1-soft); border-radius: var(--r-card, 16px); }
.insight .ib-label { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: var(--s1); letter-spacing: 0.08em; margin-bottom: 6px; text-transform: uppercase; }
.insight p { font-size: 18px; color: var(--tx-1); font-weight: 500; }

/* step2 公式大图 */
.formula-lg { display: flex; align-items: center; justify-content: center; gap: 14px; flex-wrap: wrap; padding: 28px 24px; background: var(--bg-2); border: 1px solid var(--border-1); border-radius: var(--r-card); margin-bottom: 16px; box-shadow: var(--shadow-card); }
.fl-chip { padding: 9px 18px; border-radius: 9px; font-size: 15px; font-weight: 500; }
.fl-op { font-family: 'JetBrains Mono', monospace; font-size: 20px; color: var(--tx-3); }

/* step2 三要素 */
.elem { padding: 22px; border-radius: var(--r-card); border: 1px solid var(--border-1); background: var(--bg-2); position: relative; overflow: hidden; box-shadow: var(--shadow-card); }
.elem-d { background: var(--s2-soft); }
.elem-a { background: var(--s3-soft); }
.elem-c { background: var(--s4-soft); }
.elem-label { font-size: 12.5px; font-weight: 700; letter-spacing: 0.06em; margin-bottom: 8px; text-transform: uppercase; }
.elem-d .elem-label { color: var(--s2); }
.elem-a .elem-label { color: var(--s3); }
.elem-c .elem-label { color: var(--s4); }
.elem-title { font-family: 'Instrument Serif','PingFang SC','Hiragino Sans GB',serif; font-size: 19px; font-weight: 600; color: var(--tx-1); margin-bottom: 12px; }
.elem-list { display: flex; flex-direction: column; gap: 6px; }
.elem-item { font-size: 14px; color: var(--tx-1); padding: 8px 12px; background: var(--bg-1); border-radius: 7px; }

/* step3 评估 */
.eval-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.eval { display: flex; gap: 15px; align-items: flex-start; padding: 20px; background: var(--bg-2); border: 1px solid var(--border-1); border-radius: var(--r-card); transition: border-color 200ms ease, transform 200ms ease; box-shadow: var(--shadow-card); }
.eval:hover { border-color: var(--border-2); transform: translateY(-2px); }
.eval-ic { width: 42px; height: 42px; border-radius: 11px; display: grid; place-items: center; flex-shrink: 0; }
.eval-ic svg { width: 22px; height: 22px; }
.ei-1 { background: var(--accent-bg); color: var(--accent); }
.ei-2 { background: var(--s2-soft); color: var(--s2); }
.ei-3 { background: var(--s3-soft); color: var(--s3); }
.ei-4 { background: var(--s4-soft); color: var(--s4); }

/* 自绘 play 字形（替代 ▶ emoji）*/
.btn-ic { width: 10px; height: 11px; margin-right: 1px; flex-shrink: 0; }
.ev-name { font-size: 16px; font-weight: 600; color: var(--tx-1); margin-bottom: 3px; }
.ev-q { font-size: 14px; color: var(--tx-2); margin-bottom: 6px; }
.ev-std { font-size: 13px; color: var(--tx-3); }
@media (max-width: 640px) { .eval-grid { grid-template-columns: 1fr; } }

/* 判断线 */
.verdict { margin-top: 16px; padding: 22px 24px; background: var(--accent-bg); border-radius: var(--r-card, 16px); display: flex; gap: 18px; align-items: flex-start; }
.verdict-tag { font-family: 'JetBrains Mono', monospace; font-size: 10px; font-weight: 500; color: #fff; background: var(--accent); padding: 4px 9px; border-radius: 6px; white-space: nowrap; margin-top: 2px; text-transform: uppercase; }
.verdict-main { font-family: 'Instrument Serif','PingFang SC','Hiragino Sans GB',serif; font-size: 21px; font-weight: 600; color: var(--tx-1); margin-bottom: 8px; }
.verdict-vs { display: flex; flex-direction: column; gap: 6px; }
.verdict-vs span { font-size: 14.5px; color: var(--tx-2); }

/* 风险 */
.risk-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 16px; }
.risk { padding: 18px 20px; background: var(--risk-soft); border: 1px solid transparent; border-radius: 12px; }
.risk-tag { display: inline-block; font-family: 'JetBrains Mono', monospace; font-size: 10px; color: #fff; background: var(--risk); padding: 2px 8px; border-radius: 5px; margin-bottom: 9px; }
.risk-name { font-size: 15.5px; font-weight: 600; color: var(--tx-1); margin-bottom: 4px; }
.risk-desc { font-size: 13.5px; color: var(--tx-2); }
@media (max-width: 700px) { .risk-grid { grid-template-columns: 1fr; } }

/* step4 机会画布 */
.canvas { display: grid; grid-template-columns: repeat(4, 1fr); gap: 10px; }
.cell { padding: 14px 15px; background: var(--bg-2); border: 1px solid var(--border-1); border-radius: 10px; transition: border-color 200ms ease, background 200ms ease; box-shadow: var(--shadow-card); }
.cell:hover { border-color: var(--s4); background: var(--s4-soft); }
.cell-mod { font-size: 11px; color: var(--tx-3); margin-bottom: 6px; font-family: 'JetBrains Mono', monospace; letter-spacing: 0.04em; text-transform: uppercase; }
.cell-fill { font-size: 15px; font-weight: 600; color: var(--s4); margin-bottom: 4px; }
.cell-q { font-size: 12.5px; color: var(--tx-2); line-height: 1.45; }
.cell.cell-name { background: var(--s4-soft); }
.cell.cell-risk { background: var(--risk-soft); }
.cell.cell-risk .cell-fill { color: var(--risk); }
.cell.cell-path { background: var(--s2-soft); }
.cell.cell-path .cell-fill { color: var(--s2); }
@media (max-width: 820px) { .canvas { grid-template-columns: 1fr 1fr; } }
@media (max-width: 460px) { .canvas { grid-template-columns: 1fr; } }

/* 定位矩阵 */
.matrix-wrap { margin-top: 24px; }
.matrix-title { font-size: 12.5px; color: var(--tx-2); margin-bottom: 14px; font-family: 'JetBrains Mono', monospace; letter-spacing: 0.08em; text-transform: uppercase; }
.matrix { display: grid; grid-template-columns: 30px 1fr; grid-template-rows: 1fr 30px; gap: 6px; min-height: 340px; }
.m-y { grid-row: 1; grid-column: 1; writing-mode: vertical-rl; transform: rotate(180deg); font-size: 11px; color: var(--tx-3); display: flex; align-items: center; justify-content: center; gap: 6px; white-space: nowrap; }
.m-y::after { content: '↑'; }
.m-body { grid-row: 1; grid-column: 2; display: grid; grid-template-columns: 1fr 1fr; grid-template-rows: 1fr 1fr; gap: 8px; }
.m-x { grid-row: 2; grid-column: 2; font-size: 11px; color: var(--tx-3); display: flex; align-items: center; justify-content: center; gap: 6px; }
.m-x::after { content: '→'; }
.mq { padding: 18px; border-radius: 12px; border: 1px solid var(--border-1); display: flex; flex-direction: column; justify-content: space-between; transition: border-color 200ms ease, transform 200ms ease; }
.mq:hover { transform: translateY(-2px); }
.mq-title { font-size: 15.5px; font-weight: 600; }
.mq-desc { font-size: 13px; margin-top: 7px; line-height: 1.55; color: var(--tx-2); }
.mq-strat { font-size: 12.5px; margin-top: 12px; padding: 6px 12px; border-radius: 6px; display: inline-block; align-self: flex-start; font-weight: 600; }
.mq-gold { background: var(--gold-soft); border-color: var(--gold); }
.mq-gold .mq-title { color: var(--gold); }
.mq-gold .mq-strat { background: var(--gold); color: #fff; }
.mq-green { background: var(--s2-soft); }
.mq-green .mq-title { color: var(--s2); }
.mq-green .mq-strat { background: var(--s2); color: #fff; }
.mq-blue { background: var(--s4-soft); }
.mq-blue .mq-title { color: var(--s4); }
.mq-blue .mq-strat { background: var(--s4); color: #fff; }
.mq-dim { background: var(--bg-3); }
.mq-dim .mq-title { color: var(--tx-3); }
.mq-dim .mq-strat { background: var(--border-2); color: var(--tx-2); }

/* divider */
.divider { height: 1px; background: var(--border-1); margin: 64px 0 0; }

/* ============================================================
   CTA band
============================================================ */
.cta {
  background: var(--bg-dark); color: rgba(245,244,238,0.85);
  border-radius: 24px; padding: 56px 48px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 18px;
}
.cta .h2 { color: #f5f4ee; }
.cta p { color: rgba(245,244,238,0.7); max-width: 540px; font-size: 16px; }
.cta .btn--ghost { color: #f5f4ee; border-color: rgba(245,244,238,0.4); }
.cta .btn--ghost:hover { background: #f5f4ee; color: var(--bg-dark); border-color: #f5f4ee; }
@media (max-width: 640px) { .cta { padding: 40px 24px; } }

/* ============================================================
   FOOTER
============================================================ */
.footer { background: var(--bg-dark); color: rgba(245,244,238,0.78); padding: 64px 0 36px; margin-top: 96px; }
.footer__inner { max-width: 1280px; margin: 0 auto; padding: 0 32px; display: flex; justify-content: space-between; align-items: end; flex-wrap: wrap; gap: 24px; }
.footer__logo { font-family: 'Instrument Serif', 'PingFang SC', serif; font-style: italic; font-weight: 500; font-size: clamp(40px, 6vw, 64px); line-height: 0.9; color: var(--accent); }
.footer__meta { font-family: 'JetBrains Mono', monospace; font-size: 11px; color: rgba(245,244,238,0.42); letter-spacing: 0.06em; display: flex; gap: 18px; flex-wrap: wrap; }
.footer__meta a:hover { color: var(--accent); }

/* ============================================================
   FORMS (tool / admin 共用)
============================================================ */
.field { display: flex; flex-direction: column; gap: 8px; }
.field label { font-size: 12px; font-weight: 600; letter-spacing: 0.04em; color: var(--tx-2); text-transform: uppercase; }
.input, .textarea {
  width: 100%; font-family: inherit; font-size: 15px; color: var(--tx-1);
  background: var(--bg-2); border: 1px solid var(--border-2); border-radius: 12px;
  padding: 14px 16px; transition: border-color 200ms ease, box-shadow 200ms ease;
  resize: vertical; line-height: 1.6;
}
.input:focus, .textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-bg); }
.input::placeholder, .textarea::placeholder { color: var(--tx-4); }
.hint { font-size: 12px; color: var(--tx-3); }

/* score bars (tool) */
.score { display: flex; align-items: center; gap: 12px; }
.score-name { font-size: 13px; font-weight: 600; color: var(--tx-1); min-width: 72px; }
.score-track { flex: 1; height: 8px; background: var(--bg-3); border-radius: 9999px; overflow: hidden; }
.score-fill { height: 100%; border-radius: 9999px; transition: width 600ms ease; }
.score-val { font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--tx-2); min-width: 28px; text-align: right; }

/* spinner */
.spinner { width: 18px; height: 18px; border: 2px solid var(--border-2); border-top-color: var(--accent); border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   教案元素 · 说明 / 案例 / 判断标准 / 走一遍
============================================================ */
/* 每步说明 intro */
.s-lead { font-size: 18px; line-height: 1.78; color: var(--tx-2); max-width: 820px; margin: -8px 0 32px; }
.s-lead strong, .s-lead b { color: var(--tx-1); font-weight: 600; }

/* 案例 callout */
.case { margin-top: 20px; padding: 20px 24px; background: var(--bg-2); border-radius: var(--r-card, 16px); box-shadow: var(--shadow-card); }
.case__label { font-family: 'JetBrains Mono', monospace; font-size: 11.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--case-c, var(--accent)); margin-bottom: 10px; display: flex; align-items: center; gap: 8px; }
.case__label::before { content: "案例"; font-family: 'Inter','Noto Sans SC',sans-serif; font-size: 10px; padding: 2px 7px; border-radius: 5px; background: var(--case-c, var(--accent)); color: #fff; letter-spacing: 0.06em; }
.case p { font-size: 15.5px; line-height: 1.75; color: var(--tx-2); margin: 0; }
.case p + p { margin-top: 8px; }
.case--plain .case__label::before { content: none; }
.case strong, .case .emp { color: var(--tx-1); font-weight: 600; }

/* step2 判断标准（高/中/低） */
.elem-std { margin-top: 14px; padding-top: 13px; border-top: 1px dashed var(--border-2); font-size: 11.5px; line-height: 1.7; color: var(--tx-3); }
.elem-std .lv { display: block; }
.elem-std .lv b { display: inline-block; min-width: 30px; font-weight: 600; }
.elem-std .lv.hi b { color: var(--s2); }
.elem-std .lv.mid b { color: var(--s3); }
.elem-std .lv.lo b { color: var(--risk); }

/* 风险自检 */
.risk-check { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--border-2); font-size: 11.5px; color: var(--tx-3); line-height: 1.6; }
.risk-check b { color: var(--risk); font-weight: 600; }

/* step4 维度→判断 标签化 */
.cell-judge { margin-top: 7px; font-size: 10.5px; color: var(--tx-3); display: flex; align-items: center; gap: 5px; }
.cell-judge::before { content: "→ 判断"; font-family: 'JetBrains Mono', monospace; font-size: 9px; letter-spacing: 0.08em; color: var(--tx-4); }

/* Step1 · 三层横条（带例子） */
.layers { display: flex; flex-direction: column; gap: 14px; }
.layer-row { display: grid; grid-template-columns: 132px 1fr 340px; gap: 26px; align-items: center; padding: 28px 30px; background: var(--bg-2); border-radius: var(--r-card, 20px); box-shadow: var(--shadow-card); transition: transform 220ms cubic-bezier(0.22,0.61,0.36,1), box-shadow 220ms ease; }
.layer-row:hover { transform: translateY(-3px); box-shadow: var(--shadow-card-hover); }
.lr-1 { --lr-c: var(--s1); } .lr-2 { --lr-c: var(--s2); } .lr-3 { --lr-c: var(--s4); }
.layer-row .layer-badge { font-size: 14px; padding: 7px 14px; font-weight: 600; }
.lr-1 .layer-badge { background: var(--s1-soft); color: var(--s1); }
.lr-2 .layer-badge { background: var(--s2-soft); color: var(--s2); }
.lr-3 .layer-badge { background: var(--s4-soft); color: var(--s4); }
.layer-main .lm-name { font-family: 'Instrument Serif','PingFang SC','Hiragino Sans GB',serif; font-size: 20px; font-weight: 600; color: var(--tx-1); margin-bottom: 7px; }
.layer-main .lm-q { font-size: 15.5px; color: var(--tx-2); }
.layer-benefit { display: inline-block; margin-left: 10px; font-size: 12px; color: var(--lr-c); font-weight: 600; }
.layer-egs { display: flex; gap: 8px; flex-wrap: wrap; justify-content: flex-end; }
.layer-egs .eg-cap { width: 100%; text-align: right; font-size: 11px; color: var(--tx-3); font-family: 'JetBrains Mono', monospace; letter-spacing: 0.08em; margin-bottom: 4px; }
.eg-chip { font-size: 13.5px; padding: 6px 13px; border-radius: 9999px; background: var(--fill-1); color: var(--tx-1); white-space: nowrap; font-weight: 500; }
.lr-1 .eg-chip { background: var(--s1-soft); color: var(--s1); }
.lr-2 .eg-chip { background: var(--s2-soft); color: var(--s2); }
.lr-3 .eg-chip { background: var(--s4-soft); color: var(--s4); }
@media (max-width: 780px) { .layer-row { grid-template-columns: 1fr; gap: 14px; padding: 22px 24px; } .layer-egs { justify-content: flex-start; } .layer-egs .eg-cap { text-align: left; } }
@media (max-width: 760px) { .layer-row { grid-template-columns: 1fr; gap: 12px; } .layer-egs { justify-content: flex-start; } .layer-egs .eg-cap { text-align: left; } }

/* insight 变体 · 杰文斯（暖色） */
.insight--accent { background: var(--accent-bg); }
.insight--accent .ib-label { color: var(--accent); }

/* 类型 × 层级 结合 note */
.combine { margin-top: 16px; font-size: 14.5px; color: var(--tx-2); line-height: 1.7; padding: 16px 20px; background: var(--bg-3); border-radius: 10px; }
.combine b { color: var(--tx-1); font-weight: 600; }

/* Step2 · 深化透镜（CCC 等） */
.deepen { margin-top: 22px; padding: 22px 24px; background: var(--bg-3); border: 1px dashed var(--border-2); border-radius: var(--r-card); }
.deepen__label { font-family: 'JetBrains Mono', monospace; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--tx-3); margin-bottom: 8px; }
.deepen__title { font-family: 'Instrument Serif','PingFang SC','Hiragino Sans GB',serif; font-size: 18px; font-weight: 500; color: var(--tx-1); margin-bottom: 4px; }
.deepen__sub { font-size: 13px; color: var(--tx-2); margin-bottom: 16px; }
.deepen__grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 12px; }
.deepen__item { padding: 14px 16px; background: var(--bg-2); border: 1px solid var(--border-1); border-radius: 10px; }
.deepen__item b { display: block; font-size: 14.5px; color: var(--accent); font-weight: 600; margin-bottom: 5px; }
.deepen__item span { font-size: 13.5px; color: var(--tx-2); line-height: 1.6; }
.deepen__foot { margin-top: 14px; font-size: 12.5px; color: var(--tx-3); line-height: 1.7; }
.deepen__foot b { color: var(--tx-2); font-weight: 600; }
@media (max-width: 700px) { .deepen__grid { grid-template-columns: 1fr; } }

/* Step3 · 价值参考表（六类型 × 四象限） */
.vref-block { margin-top: 28px; }
.vref-intro { font-size: 15.5px; color: var(--tx-2); line-height: 1.75; margin: 8px 0 16px; max-width: 880px; }
.vref-intro strong { color: var(--tx-1); font-weight: 600; }
.vref-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.vref { width: 100%; border-collapse: separate; border-spacing: 6px; min-width: 680px; }
.vref th, .vref td { font-size: 13.5px; padding: 12px 13px; border-radius: 8px; text-align: center; vertical-align: middle; }
.vref thead th { font-family: 'Inter','Noto Sans SC',sans-serif; font-weight: 600; font-size: 12.5px; line-height: 1.35; }
.vref .corner { background: transparent; }
.vref tbody th { background: var(--bg-3); color: var(--tx-1); font-weight: 600; text-align: left; white-space: nowrap; }
.vref td { background: var(--bg-2); border: 1px solid var(--border-1); color: var(--tx-2); }
/* 列语义着色：低低=灰 / 高低=薄荷 / 低高=天蓝 / 高高=黄金 */
.vref .c-ll { background: var(--bg-3); color: var(--tx-3); }
.vref .c-hl { background: var(--s2-soft); color: var(--s2); }
.vref .c-lh { background: var(--s4-soft); color: var(--s4); }
.vref .c-hh { background: var(--gold-soft); color: var(--gold); }
.vref td.c-hh { border-color: var(--gold); color: var(--tx-1); font-weight: 500; }
.vref-axis { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 12px; font-size: 11.5px; color: var(--tx-3); }
.vref-axis b { color: var(--tx-2); font-weight: 600; }

/* 走一遍 · 端到端示例 */
.worked { background: var(--bg-2); border: 1px solid var(--border-2); border-radius: 20px; padding: 36px; box-shadow: var(--shadow-card); }
.worked__name { font-family: 'Instrument Serif','PingFang SC','Hiragino Sans GB',serif; font-size: 27px; font-weight: 600; color: var(--tx-1); margin: 6px 0 4px; }
.worked__tagline { font-size: 15px; color: var(--tx-2); margin-bottom: 8px; }
.worked__steps { margin-top: 18px; }
.worked__row { display: grid; grid-template-columns: 108px 1fr; gap: 18px; padding: 16px 0; border-top: 1px solid var(--border-1); align-items: start; }
.worked__tag { font-family: 'Inter','Noto Sans SC',sans-serif; font-size: 13px; font-weight: 600; padding: 6px 13px; border-radius: 9999px; text-align: center; align-self: start; }
.wt-1 { background: var(--s1-soft); color: var(--s1); }
.wt-2 { background: var(--s2-soft); color: var(--s2); }
.wt-3 { background: var(--s3-soft); color: var(--s3); }
.wt-4 { background: var(--s4-soft); color: var(--s4); }
.worked__text { font-size: 15px; line-height: 1.75; color: var(--tx-1); }
.worked__text strong, .worked__text .emp { color: var(--tx-1); font-weight: 600; }
.worked__verdict { margin-top: 22px; padding: 18px 22px; background: var(--accent-soft); border: 1px solid var(--accent-bg); border-radius: 12px; font-size: 15.5px; color: var(--tx-1); }
.worked__verdict b { color: var(--accent); }
@media (max-width: 560px) { .worked { padding: 24px; } .worked__row { grid-template-columns: 1fr; gap: 8px; } }

/* ============================================================
   适用对象 + 手册下载（下部完善）
============================================================ */
.audience { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-top: 28px; }
.aud { padding: 22px 20px; background: var(--bg-2); border: 1px solid var(--border-1); border-radius: var(--r-card); box-shadow: var(--shadow-card); transition: transform 200ms ease, box-shadow 200ms ease; }
.aud:hover { transform: translateY(-3px); box-shadow: var(--shadow-card-hover); }
.aud__ic { width: 32px; height: 32px; color: var(--accent); margin-bottom: 12px; }
.aud__name { font-family: 'Instrument Serif','PingFang SC','Hiragino Sans GB',serif; font-size: 17px; font-weight: 600; color: var(--tx-1); margin-bottom: 6px; }
.aud__desc { font-size: 13.5px; color: var(--tx-2); line-height: 1.6; }
.download { display: inline-flex; align-items: center; gap: 14px; margin-top: 28px; padding: 16px 22px; background: var(--bg-2); border: 1px solid var(--accent); border-radius: var(--r-card); transition: background 200ms ease, transform 200ms ease; box-shadow: var(--shadow-card); }
.download:hover { background: var(--accent-soft); transform: translateY(-2px); }
.download__ic { width: 42px; height: 42px; border-radius: 11px; background: var(--accent-bg); color: var(--accent); display: grid; place-items: center; flex-shrink: 0; }
.download__ic svg { width: 21px; height: 21px; }
.download__t { font-size: 15.5px; font-weight: 600; color: var(--tx-1); }
.download__s { font-size: 12.5px; color: var(--tx-3); margin-top: 2px; }
@media (max-width: 820px) { .audience { grid-template-columns: 1fr 1fr; } }
@media (max-width: 460px) { .audience { grid-template-columns: 1fr; } }