/* ==========================================================================
   賽析 AI — 共用樣式
   設計語言：球場夜戰（深夜藍底 × 探照燈琥珀 × 數據藍）
   ========================================================================== */

:root{
  --ink:        #0A0E1A;
  --ink-2:      #0F1525;
  --ink-3:      #161E33;
  --surface:    #131B2E;
  --line:       rgba(255,255,255,.08);
  --line-soft:  rgba(255,255,255,.05);

  --text:       #EAEEF8;
  --muted:      #93A0B8;
  --muted-2:    #5C6883;

  --amber:      #FFB23E;   /* 招牌色：探照燈 / 即時 */
  --amber-deep: #F59E2C;
  --blue:       #5B8DEF;   /* AI / 數據 */
  --blue-bright:#84ABFF;
  --green:      #34D399;   /* 正向狀態（節制使用） */
  --red:        #FB7185;

  --r-sm: 8px;
  --r:    14px;
  --r-lg: 22px;

  --font-cjk:   "Noto Sans TC", system-ui, sans-serif;
  --font-disp:  "Saira Condensed", "Noto Sans TC", sans-serif;
  --font-label: "Saira", "Noto Sans TC", sans-serif;

  --wrap: 1180px;
}

*{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){ html{ scroll-behavior:auto; } }

body{
  margin:0;
  font-family:var(--font-cjk);
  color:var(--text);
  background:var(--ink);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}

/* 背景氛圍：探照燈暈光 */
body::before{
  content:"";
  position:fixed; inset:0; z-index:-1; pointer-events:none;
  background:
    radial-gradient(900px 500px at 82% -8%, rgba(255,178,62,.10), transparent 60%),
    radial-gradient(800px 600px at 8% 0%,  rgba(91,141,239,.12), transparent 55%),
    linear-gradient(180deg, #0A0E1A 0%, #090C16 100%);
}

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }

.wrap{ width:100%; max-width:var(--wrap); margin:0 auto; padding:0 24px; }

.eyebrow{
  font-family:var(--font-label);
  font-weight:600;
  font-size:.78rem;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--amber);
  display:inline-flex; align-items:center; gap:.6em;
}
.eyebrow::before{
  content:""; width:26px; height:1px; background:var(--amber); opacity:.7;
}

h1,h2,h3{ line-height:1.18; font-weight:900; letter-spacing:-.01em; margin:0; }

.section-title{ font-size:clamp(1.7rem, 3.6vw, 2.7rem); }
.section-lead{ color:var(--muted); max-width:54ch; margin:.9rem 0 0; font-size:1.02rem; }

/* ---------- 導覽列 ---------- */
.nav{
  position:sticky; top:0; z-index:50;
  backdrop-filter:saturate(140%) blur(14px);
  background:rgba(10,14,26,.72);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:var(--wrap); margin:0 auto; padding:14px 24px;
  display:flex; align-items:center; gap:28px;
}
.brand{ display:inline-flex; align-items:center; gap:11px; font-weight:900; font-size:1.18rem; }
.brand-mark{
  width:34px; height:34px; border-radius:10px; flex:0 0 auto;
  display:grid; place-items:center;
  background:linear-gradient(145deg, var(--amber), var(--amber-deep));
  color:#1a1206; font-family:var(--font-disp); font-weight:700; font-size:1.25rem;
  box-shadow:0 6px 18px rgba(245,158,44,.32);
}
.brand small{ display:block; font-family:var(--font-label); font-weight:500;
  font-size:.62rem; letter-spacing:.18em; color:var(--muted-2); text-transform:uppercase; }
.nav-links{ display:flex; gap:26px; margin-left:auto; }
.nav-links a{ color:var(--muted); font-size:.95rem; font-weight:500; transition:color .2s; }
.nav-links a:hover{ color:var(--text); }
.nav-cta{
  font-family:var(--font-cjk); font-weight:700; font-size:.92rem;
  padding:9px 18px; border-radius:999px;
  background:linear-gradient(145deg, var(--amber), var(--amber-deep));
  color:#1a1206; border:none; cursor:pointer; white-space:nowrap;
}

.nav-burger{ display:none; margin-left:auto; background:none; border:1px solid var(--line);
  color:var(--text); width:42px; height:42px; border-radius:10px; cursor:pointer; font-size:1.2rem; }

/* ---------- 按鈕 ---------- */
.btn{
  display:inline-flex; align-items:center; gap:.55em; justify-content:center;
  font-family:var(--font-cjk); font-weight:700; font-size:1rem;
  padding:14px 26px; border-radius:999px; cursor:pointer; border:1px solid transparent;
  transition:transform .15s ease, box-shadow .2s ease;
}
.btn-primary{
  background:linear-gradient(145deg, var(--amber), var(--amber-deep));
  color:#1a1206; box-shadow:0 10px 30px rgba(245,158,44,.28);
}
.btn-primary:hover{ transform:translateY(-2px); box-shadow:0 16px 40px rgba(245,158,44,.36); }
.btn-ghost{ background:transparent; border-color:var(--line); color:var(--text); }
.btn-ghost:hover{ border-color:var(--blue-bright); color:var(--blue-bright); }
@media (prefers-reduced-motion: reduce){ .btn-primary:hover{ transform:none; } }

/* ---------- HERO ---------- */
.hero{ padding:74px 0 40px; }
.hero-grid{
  display:grid; grid-template-columns:1.05fr .95fr; gap:54px; align-items:center;
}
.hero h1{
  font-size:clamp(2.3rem, 5.4vw, 4rem); margin-top:18px;
  letter-spacing:-.02em;
}
.hero h1 .hl{
  background:linear-gradient(120deg, var(--amber) 0%, var(--blue-bright) 120%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
.hero p.lead{ color:var(--muted); font-size:1.12rem; max-width:46ch; margin:22px 0 30px; }
.hero-actions{ display:flex; gap:14px; flex-wrap:wrap; }
.hero-fine{ margin-top:22px; font-size:.84rem; color:var(--muted-2); display:flex; align-items:center; gap:9px; }
.age-pill{
  font-family:var(--font-label); font-weight:700; font-size:.72rem; letter-spacing:.04em;
  border:1px solid rgba(251,113,133,.5); color:var(--red);
  padding:3px 9px; border-radius:6px;
}

/* 招牌元件：示範賽事卡 */
.matchcard{
  position:relative;
  background:linear-gradient(180deg, var(--surface), var(--ink-2));
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px 24px 20px;
  box-shadow:0 40px 80px -30px rgba(0,0,0,.7);
  opacity:0; transform:translateY(18px);
  animation:rise .8s .15s cubic-bezier(.22,1,.36,1) forwards;
}
@keyframes rise{ to{ opacity:1; transform:none; } }
.mc-top{ display:flex; align-items:center; justify-content:space-between; margin-bottom:18px; }
.mc-live{ display:inline-flex; align-items:center; gap:7px; font-family:var(--font-label);
  font-weight:600; font-size:.72rem; letter-spacing:.18em; color:var(--amber); text-transform:uppercase; }
.mc-live .dot{ width:8px; height:8px; border-radius:50%; background:var(--amber);
  box-shadow:0 0 0 0 rgba(255,178,62,.6); animation:pulse 1.8s infinite; }
@keyframes pulse{ 70%{ box-shadow:0 0 0 9px rgba(255,178,62,0);} 100%{ box-shadow:0 0 0 0 rgba(255,178,62,0);} }
.mc-league{ font-family:var(--font-label); font-size:.74rem; letter-spacing:.14em; color:var(--muted-2); text-transform:uppercase; }

.mc-teams{ display:grid; grid-template-columns:1fr auto 1fr; align-items:center; gap:10px; margin:6px 0 22px; }
.team{ text-align:center; }
.team .crest{
  width:54px; height:54px; margin:0 auto 9px; border-radius:14px;
  display:grid; place-items:center; font-family:var(--font-disp); font-weight:700; font-size:1.5rem;
}
.crest.a{ background:rgba(91,141,239,.16); color:var(--blue-bright); border:1px solid rgba(91,141,239,.3); }
.crest.b{ background:rgba(251,113,133,.14); color:var(--red); border:1px solid rgba(251,113,133,.3); }
.team .name{ font-weight:700; font-size:1rem; }
.team .form{ font-family:var(--font-label); font-size:.7rem; letter-spacing:.1em; color:var(--muted-2); margin-top:3px; }
.mc-vs{ font-family:var(--font-disp); font-weight:700; color:var(--muted-2); font-size:1.1rem; }

.prob-label{ display:flex; justify-content:space-between; font-family:var(--font-label);
  font-size:.72rem; letter-spacing:.1em; color:var(--muted); text-transform:uppercase; margin-bottom:8px; }
.prob-bar{ display:flex; height:42px; border-radius:11px; overflow:hidden; background:var(--ink-3); }
.prob-seg{ display:flex; align-items:center; justify-content:center; font-family:var(--font-disp);
  font-weight:700; font-size:1.05rem; color:#0c1018; width:0; transition:width 1.1s cubic-bezier(.22,1,.36,1); white-space:nowrap; }
.seg-home{ background:linear-gradient(90deg, var(--blue), var(--blue-bright)); }
.seg-draw{ background:var(--ink-3); color:var(--muted); }
.seg-away{ background:linear-gradient(90deg, #e7607a, var(--red)); }
.prob-key{ display:flex; justify-content:space-between; margin-top:9px; font-size:.74rem; color:var(--muted-2); }
.prob-key span b{ color:var(--text); font-weight:700; }

.mc-factors{ display:flex; flex-wrap:wrap; gap:7px; margin-top:18px; }
.factor{ font-size:.76rem; color:var(--muted); border:1px solid var(--line);
  padding:5px 11px; border-radius:999px; background:rgba(255,255,255,.02); }
.factor b{ color:var(--blue-bright); font-weight:700; }
.mc-foot{ margin-top:16px; padding-top:14px; border-top:1px solid var(--line-soft);
  font-size:.74rem; color:var(--muted-2); display:flex; align-items:center; gap:7px; }

/* ---------- 數據條 ---------- */
.stat-strip{ border-top:1px solid var(--line); border-bottom:1px solid var(--line); margin-top:30px; }
.stat-strip .wrap{ display:grid; grid-template-columns:repeat(4,1fr); gap:0; }
.stat{ padding:30px 22px; border-right:1px solid var(--line-soft); }
.stat:last-child{ border-right:none; }
.stat .num{ font-family:var(--font-disp); font-weight:700; font-size:2.4rem; color:var(--text); line-height:1; }
.stat .num .u{ font-size:1.1rem; color:var(--amber); margin-left:2px; }
.stat .cap{ color:var(--muted); font-size:.9rem; margin-top:7px; }

/* ---------- 區塊通用 ---------- */
.section{ padding:84px 0; }
.section-head{ max-width:640px; margin-bottom:46px; }

/* 運作方式 */
.steps{ display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.step{ background:var(--ink-2); border:1px solid var(--line); border-radius:var(--r);
  padding:28px 24px; position:relative; }
.step .idx{ font-family:var(--font-disp); font-weight:700; font-size:2.6rem;
  color:transparent; -webkit-text-stroke:1.5px rgba(255,178,62,.55); line-height:1; }
.step h3{ font-size:1.18rem; margin:14px 0 9px; }
.step p{ color:var(--muted); font-size:.96rem; margin:0; }
.step .line{ position:absolute; top:42px; right:-12px; width:24px; height:1px; background:var(--line); }
.step:last-child .line{ display:none; }

/* 功能特色 */
.features{ display:grid; grid-template-columns:repeat(3,1fr); gap:18px; }
.feature{ background:var(--ink-2); border:1px solid var(--line); border-radius:var(--r); padding:26px 24px;
  transition:border-color .2s, transform .2s; }
.feature:hover{ border-color:rgba(91,141,239,.4); transform:translateY(-3px); }
@media (prefers-reduced-motion: reduce){ .feature:hover{ transform:none; } }
.feature .ic{ width:46px; height:46px; border-radius:12px; display:grid; place-items:center;
  background:rgba(91,141,239,.12); border:1px solid rgba(91,141,239,.25); margin-bottom:16px; font-size:1.4rem; }
.feature h3{ font-size:1.12rem; margin-bottom:8px; }
.feature p{ color:var(--muted); font-size:.94rem; margin:0; }

/* 機率思維 split */
.split{ display:grid; grid-template-columns:1fr 1fr; gap:50px; align-items:center; }
.split .panel{ background:linear-gradient(180deg, var(--surface), var(--ink-2));
  border:1px solid var(--line); border-radius:var(--r-lg); padding:30px; }
.point{ display:flex; gap:14px; padding:16px 0; border-bottom:1px solid var(--line-soft); }
.point:last-child{ border-bottom:none; }
.point .pi{ flex:0 0 auto; width:30px; height:30px; border-radius:8px; display:grid; place-items:center;
  background:rgba(52,211,153,.14); color:var(--green); font-weight:900; }
.point h4{ margin:0 0 3px; font-size:1.02rem; }
.point p{ margin:0; color:var(--muted); font-size:.92rem; }

/* 負責任使用 */
.responsible{
  background:linear-gradient(135deg, rgba(251,113,133,.07), rgba(255,178,62,.06));
  border:1px solid rgba(251,113,133,.22); border-radius:var(--r-lg);
  padding:38px 40px; display:grid; grid-template-columns:auto 1fr; gap:28px; align-items:center;
}
.responsible .rmark{ font-size:2.6rem; }
.responsible h3{ font-size:1.35rem; margin-bottom:10px; }
.responsible p{ color:var(--muted); margin:0 0 8px; font-size:.97rem; max-width:70ch; }
.responsible p:last-child{ margin-bottom:0; }
.responsible strong{ color:var(--text); }

/* FAQ */
.faq{ max-width:820px; margin:0 auto; }
.qa{ border:1px solid var(--line); border-radius:var(--r); margin-bottom:12px; overflow:hidden;
  background:var(--ink-2); }
.qa summary{ cursor:pointer; padding:20px 24px; font-weight:700; font-size:1.04rem;
  list-style:none; display:flex; justify-content:space-between; align-items:center; gap:16px; }
.qa summary::-webkit-details-marker{ display:none; }
.qa summary::after{ content:"+"; font-family:var(--font-disp); font-size:1.5rem; color:var(--amber); transition:transform .2s; }
.qa[open] summary::after{ transform:rotate(45deg); }
.qa .a{ padding:0 24px 20px; color:var(--muted); font-size:.96rem; }

/* CTA */
.cta-band{ text-align:center; background:linear-gradient(180deg, var(--ink-2), var(--ink-3));
  border:1px solid var(--line); border-radius:var(--r-lg); padding:58px 30px; }
.cta-band h2{ font-size:clamp(1.7rem,4vw,2.6rem); margin-bottom:14px; }
.cta-band p{ color:var(--muted); max-width:50ch; margin:0 auto 28px; }

/* ---------- 頁尾 ---------- */
.footer{ border-top:1px solid var(--line); margin-top:30px; padding:54px 0 34px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:36px; }
.footer .brand{ font-size:1.1rem; margin-bottom:14px; }
.footer-about{ color:var(--muted-2); font-size:.9rem; max-width:34ch; }
.footer h5{ font-family:var(--font-label); font-weight:600; letter-spacing:.14em; text-transform:uppercase;
  font-size:.74rem; color:var(--muted); margin:0 0 14px; }
.footer ul{ list-style:none; margin:0; padding:0; }
.footer ul li{ margin-bottom:10px; }
.footer ul a{ color:var(--muted); font-size:.92rem; transition:color .2s; }
.footer ul a:hover{ color:var(--amber); }
.footer-bottom{ border-top:1px solid var(--line-soft); margin-top:38px; padding-top:22px;
  display:flex; justify-content:space-between; gap:18px; flex-wrap:wrap; align-items:center; }
.footer-bottom small{ color:var(--muted-2); font-size:.82rem; }
.footer-bottom .disc{ color:var(--muted-2); font-size:.8rem; max-width:62ch; }

/* ---------- 法律 / 內容頁 ---------- */
.page-hero{ padding:64px 0 30px; border-bottom:1px solid var(--line); }
.page-hero h1{ font-size:clamp(2rem,4.5vw,3rem); margin-top:14px; }
.page-hero .updated{ color:var(--muted-2); font-size:.88rem; margin-top:14px; }
.legal{ padding:50px 0 70px; }
.legal-wrap{ max-width:820px; margin:0 auto; }
.legal h2{ font-size:1.4rem; margin:42px 0 14px; padding-top:6px; }
.legal h2:first-child{ margin-top:0; }
.legal h3{ font-size:1.08rem; margin:26px 0 10px; color:var(--blue-bright); }
.legal p{ color:#c7cfe0; margin:0 0 14px; }
.legal ul{ color:#c7cfe0; padding-left:22px; margin:0 0 16px; }
.legal ul li{ margin-bottom:9px; }
.legal a{ color:var(--amber); border-bottom:1px solid rgba(255,178,62,.35); }
.callout{ background:var(--ink-2); border:1px solid var(--line); border-left:3px solid var(--amber);
  border-radius:var(--r-sm); padding:18px 22px; margin:22px 0; color:var(--muted); font-size:.95rem; }
.toc{ background:var(--ink-2); border:1px solid var(--line); border-radius:var(--r); padding:22px 26px; margin-bottom:40px; }
.toc h4{ margin:0 0 12px; font-size:.82rem; letter-spacing:.12em; text-transform:uppercase; color:var(--muted); font-family:var(--font-label); }
.toc ol{ margin:0; padding-left:20px; color:var(--muted); columns:2; column-gap:34px; }
.toc ol li{ margin-bottom:7px; }
.toc ol a{ color:var(--muted); }
.toc ol a:hover{ color:var(--amber); }

/* 聯絡頁 */
.contact-grid{ display:grid; grid-template-columns:1fr 1fr; gap:40px; align-items:start; }
.contact-card{ background:var(--ink-2); border:1px solid var(--line); border-radius:var(--r); padding:26px; margin-bottom:16px; }
.contact-card h3{ font-size:1.05rem; margin-bottom:6px; }
.contact-card p{ color:var(--muted); margin:0; font-size:.95rem; }
.contact-card a{ color:var(--amber); }
.field{ margin-bottom:16px; }
.field label{ display:block; font-size:.86rem; color:var(--muted); margin-bottom:7px; font-weight:500; }
.field input, .field textarea{ width:100%; background:var(--ink); border:1px solid var(--line);
  border-radius:var(--r-sm); padding:12px 14px; color:var(--text); font-family:var(--font-cjk); font-size:.96rem; }
.field input:focus, .field textarea:focus{ outline:none; border-color:var(--blue); }

/* ---------- 進場動畫 ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s ease, transform .7s ease; }
.reveal.in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity:1; transform:none; transition:none; }
  .matchcard{ animation:none; opacity:1; transform:none; }
}

/* ---------- 響應式 ---------- */
@media (max-width: 920px){
  .hero-grid{ grid-template-columns:1fr; gap:40px; }
  .split{ grid-template-columns:1fr; gap:30px; }
  .features{ grid-template-columns:1fr 1fr; }
  .steps{ grid-template-columns:1fr; }
  .step .line{ display:none; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .contact-grid{ grid-template-columns:1fr; }
  .toc ol{ columns:1; }
}
@media (max-width: 680px){
  .nav-links{ display:none; }
  .nav-burger{ display:block; }
  .nav-links.open{ display:flex; position:absolute; top:100%; left:0; right:0;
    flex-direction:column; gap:0; background:var(--ink-2); border-bottom:1px solid var(--line); padding:8px 0; }
  .nav-links.open a{ padding:13px 24px; }
  .stat-strip .wrap{ grid-template-columns:1fr 1fr; }
  .stat{ border-bottom:1px solid var(--line-soft); }
  .stat:nth-child(odd){ border-right:1px solid var(--line-soft); }
  .features{ grid-template-columns:1fr; }
  .responsible{ grid-template-columns:1fr; gap:14px; text-align:left; }
  .footer-grid{ grid-template-columns:1fr 1fr; }
  .section{ padding:60px 0; }
}