/* ============================================================
   AICOR 官网 · 页面：案例详情 Case Detail
   ------------------------------------------------------------
   cases/b2b-sales-ai.html 案例详情页特有样式
   依赖：tokens.css、base.css、utilities.css、components/*
   ============================================================ */

.alt { background: var(--bg-1); }
.btn-ghost { padding: 15px 38px; border-radius: 100px; border: 1px solid var(--line); font-size: 15px; letter-spacing: 2px; color: var(--text-2); transition: all 0.25s; display: inline-block; margin-left: 14px; }
.btn-primary { padding: 15px 38px; border-radius: 100px; background: var(--grad); font-size: 15px; font-weight: 600; letter-spacing: 2px; color: #fff; box-shadow: 0 8px 32px rgba(79,140,255,0.35); transition: all 0.25s; display: inline-block; }
.cmp-callout { background: linear-gradient(160deg, rgba(79,140,255,0.1), rgba(45,212,191,0.08)); border: 1px solid rgba(79,140,255,0.25); border-radius: 18px; padding: 28px 26px; }
.cmp-callout .c-label { font-size: 12px; letter-spacing: 3px; color: var(--accent-2); margin-bottom: 14px; }
.cmp-callout .c-sub { font-size: 13.5px; color: var(--text-2); margin-top: 14px; line-height: 1.9; }
.cmp-callout p { font-family: var(--serif); font-size: 19px; line-height: 1.8; color: var(--text-1); }
.cmp-callout p b { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.cmp-note { margin-top: 14px; font-size: 12.5px; color: var(--text-3); }
.cmp-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.cmp-table .down { color: #f0a3a3; font-weight: 700; }
.cmp-table .up { color: var(--accent-2); font-weight: 700; }
.cmp-table td { border: 1px solid var(--line); padding: 12px 14px; text-align: center; color: var(--text-2); }
.cmp-table td:first-child { text-align: left; color: var(--text-1); }
.cmp-table thead th { background: rgba(79,140,255,0.1); border: 1px solid var(--line); padding: 13px 14px; text-align: center; font-size: 13px; letter-spacing: 1px; font-weight: 600; color: var(--text-1); }
.cmp-table thead th:first-child { text-align: left; }
.container { max-width: 1180px; margin: 0 auto; padding: 0 32px; }
.core-pulse { animation: corepulse 3.2s ease-in-out infinite; transform-origin: center; }
.crumb { font-size: 13px; color: var(--text-3); letter-spacing: 2px; margin-bottom: 28px; display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.crumb .sep { color: var(--line); }
.crumb a:hover { color: var(--text-1); }
.cta-band { text-align: center; position: relative; overflow: hidden; }
.cta-band .container { position: relative; z-index: 2; }
.cta-band::before { content: ""; position: absolute; width: 760px; height: 460px; background: radial-gradient(ellipse, rgba(79,140,255,0.12), transparent 65%); top: 50%; left: 50%; transform: translate(-50%,-50%); pointer-events: none; }
.cta-sub { color: var(--text-2); max-width: 540px; margin: 0 auto 36px; }
.cta-title { font-family: var(--serif); font-size: clamp(28px, 4vw, 44px); font-weight: 800; line-height: 1.4; margin-bottom: 16px; }
.cta-title .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.dash-line { stroke-dasharray: 7 7; animation: dashflow 1.1s linear infinite; }
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--line), transparent); }
.flow-cap { text-align: center; color: var(--text-3); font-size: 12.5px; letter-spacing: 2px; margin-top: 18px; }
.flow-step { opacity: 0; transform: translateY(18px); transition: opacity 0.7s ease, transform 0.7s ease; }
.flow-step.visible { opacity: 1; transform: none; }
.flow-wrap { width: 100%; overflow-x: auto; }
.flow-wrap svg { min-width: 720px; display: block; margin: 0 auto; }
.kpi { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 22px 24px; }
.kpi .k-delta { margin-top: 6px; font-size: 13px; font-weight: 600; color: var(--accent-2); }
.kpi .k-label { font-size: 12.5px; color: var(--text-3); letter-spacing: 1px; margin-bottom: 10px; }
.kpi .k-value { font-family: var(--serif); font-size: 26px; font-weight: 800; letter-spacing: 1px; }
.kpi .k-value .from { color: var(--text-3); font-weight: 600; }
.kpi .k-value .to { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 46px; max-width: 820px; }
.method-card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 28px 26px; transition: all 0.3s; }
.method-card .m-icon { width: 42px; height: 42px; border-radius: 12px; background: rgba(45,212,191,0.1); border: 1px solid rgba(45,212,191,0.3); display: flex; align-items: center; justify-content: center; margin-bottom: 16px; }
.method-card h3 { font-size: 17px; font-weight: 700; margin-bottom: 8px; }
.method-card p { font-size: 13.5px; color: var(--text-2); }
.method-card:hover { border-color: rgba(45,212,191,0.35); transform: translateY(-3px); }
.nav-drop { position: relative; }
.nav-qr { position: relative; display: inline-flex; align-items: center; gap: 8px; }
.nav-right { display: flex; align-items: center; gap: 26px; }
.node-glow { animation: nodeglow 2.4s ease-in-out infinite; }
.pain-card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 30px 30px 26px; transition: all 0.3s; }
.pain-card .p-num { font-size: 12px; letter-spacing: 3px; color: var(--text-3); margin-bottom: 10px; }
.pain-card h3 { font-family: var(--serif); font-size: 20px; font-weight: 700; margin-bottom: 10px; }
.pain-card p { color: var(--text-2); font-size: 14.5px; }
.pain-card p b { color: #e8a0a0; font-weight: 600; }
.pain-card:hover { border-color: rgba(79,140,255,0.35); transform: translateY(-3px); box-shadow: 0 14px 36px rgba(0,0,0,0.35); }
.pain-imgs { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 28px; }
.pain-imgs figcaption { font-size: 12.5px; color: var(--text-3); text-align: center; padding: 10px 12px; letter-spacing: 1px; }
.pain-imgs figure { border: 1px solid var(--line); border-radius: 16px; overflow: hidden; background: var(--bg-2); }
.pain-imgs img { display: block; width: 100%; height: 300px; object-fit: contain; background: #fff; }
.pain-imgs.three { grid-template-columns: repeat(3, 1fr); }
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s ease, transform 0.8s ease; }
.sec-desc { color: var(--text-2); font-size: 16px; max-width: 680px; }
.sec-desc em { font-style: normal; color: var(--accent-2); }
.sec-label { display: inline-flex; align-items: center; gap: 10px; font-size: 12px; letter-spacing: 4px; text-transform: uppercase; color: var(--accent-2); font-weight: 600; margin-bottom: 20px; }
.sec-title { font-family: var(--serif); font-size: clamp(28px, 3.8vw, 42px); font-weight: 700; line-height: 1.3; letter-spacing: 1px; margin-bottom: 16px; }
.step + .step { border-top: 1px solid var(--line-soft); }
.step .s-index { font-size: 13px; letter-spacing: 3px; color: var(--accent-2); margin-bottom: 8px; }
.step .s-point { display: flex; gap: 10px; color: var(--text-2); font-size: 14px; margin-top: 8px; }
.step .s-point::before { content: ""; flex: none; width: 6px; height: 6px; border-radius: 50%; background: var(--grad); margin-top: 9px; }
.step h3 { font-family: var(--serif); font-size: 26px; font-weight: 700; margin-bottom: 14px; }
.step p { color: var(--text-2); font-size: 15px; margin-bottom: 10px; }
.step-fig { border: 1px solid var(--line); border-radius: 18px; overflow: hidden; background: var(--bg-2); }
.step-fig figcaption { font-size: 12.5px; color: var(--text-3); text-align: center; padding: 10px; letter-spacing: 1px; }
.step-fig img { display: block; width: 100%; height: 320px; object-fit: contain; background: #fff; }
.step.rev .s-text { order: 2; }
.subhero { padding: 190px 0 80px; position: relative; overflow: hidden; }
.subhero .tag { font-size: 12px; letter-spacing: 1px; color: var(--accent-2); border: 1px solid rgba(45,212,191,0.3); background: rgba(45,212,191,0.06); border-radius: 999px; padding: 4px 14px; }
.subhero .tag-row { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 26px; }
.subhero .tag.blue { color: #8fb8ff; border-color: rgba(79,140,255,0.3); background: rgba(79,140,255,0.07); }
.subhero h1 { font-family: var(--serif); font-size: clamp(34px, 5vw, 58px); font-weight: 900; line-height: 1.22; letter-spacing: 2px; margin-bottom: 24px; }
.subhero h1 .grad { background: var(--grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.subhero p { font-size: clamp(15px, 1.5vw, 18px); color: var(--text-2); max-width: 760px; }
.subhero p strong { color: var(--text-1); font-weight: 600; }
.subhero-glow { position: absolute; width: 800px; height: 800px; border-radius: 50%; background: radial-gradient(circle, rgba(79,140,255,0.12) 0%, transparent 65%); top: -350px; right: -200px; pointer-events: none; animation: breathe 9s ease-in-out infinite; }
.subhero-glow.g2 { background: radial-gradient(circle, rgba(45,212,191,0.08) 0%, transparent 65%); top: auto; bottom: -450px; left: -300px; right: auto; animation-delay: -4s; }
/* ===== 困局 ===== */
  .pain-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 46px; }
/* ===== 效果对比 ===== */
  .cmp-wrap { margin-top: 46px; display: grid; grid-template-columns: 1.35fr 1fr; gap: 30px; align-items: start; }
/* ===== 方法论 ===== */
  .method-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 44px; }
/* ===== 流程图 ===== */
  .flow-shell { margin-top: 48px; background: var(--bg-2); border: 1px solid var(--line); border-radius: 24px; padding: 40px 30px 30px; overflow: hidden; }
/* ===== 重构 ===== */
  .step { display: grid; grid-template-columns: 1fr 1fr; gap: 52px; align-items: center; padding: 34px 0; }
0% { filter: drop-shadow(0 0 6px rgba(45,212,191,0.35)); }
100% { filter: drop-shadow(0 0 6px rgba(45,212,191,0.35)); }
50% { filter: drop-shadow(0 0 22px rgba(79,140,255,0.65)); }
footer { border-top: 1px solid var(--line-soft); padding: 44px 0; }
header { position: fixed; top: 0; left: 0; right: 0; z-index: 100; padding: 22px 0; transition: all 0.35s ease; border-bottom: 1px solid transparent; }
nav { display: flex; gap: 34px; align-items: center; }
section { padding: 88px 0; position: relative; }
to { stroke-dashoffset: -14; }
@media (max-width: 700px) {
  .btn-ghost { margin-left: 0; margin-top: 14px; }
  .pain-imgs img { height: 220px; }
  .step-fig img { height: 220px; }
  nav { display: none; }
  section { padding: 64px 0; }
}
@media (max-width: 860px) {
  .kpis { grid-template-columns: 1fr; }
  .method-grid { grid-template-columns: 1fr; }
  .pain-grid { grid-template-columns: 1fr; }
  .pain-imgs { grid-template-columns: 1fr; }
  .pain-imgs.three { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1fr; gap: 24px; }
  .step.rev .s-text { order: 0; }
}
@media (max-width: 900px) {
  .cmp-wrap { grid-template-columns: 1fr; }
}

/* 迁移自 b2b-sales-ai.html <style>：流程图动画 keyframes */
@keyframes dashflow { to { stroke-dashoffset: -14; } }
@keyframes corepulse { 0%,100% { filter: drop-shadow(0 0 6px rgba(45,212,191,0.35)); } 50% { filter: drop-shadow(0 0 22px rgba(79,140,255,0.65)); } }
@keyframes nodeglow { 0%,100% { opacity: 0.55; } 50% { opacity: 1; } }
