/* ============================================================
   浪拍AI — Langpai AI Website
   Style: Holographic Ice · 全息冰蓝科技感
   ============================================================ */

/* ----- CSS Variables ----- */
:root {
  /* Surface */
  --bg-root:    #070b14;
  --bg-raised:  #070c18;
  --bg-card:    rgba(13,22,42,0.72);
  --bg-glass:   rgba(148,197,255,0.045);
  --border:     rgba(148,197,255,0.10);
  --border-hi:  rgba(148,197,255,0.18);

  /* Text */
  --t-pri:      #eaf4ff;
  --t-sec:      #9fb3cc;
  --t-dim:      #64748b;

  /* Accent */
  --a-blue:     #38bdf8;
  --a-cyan:     #22d3ee;
  --a-ice:      #7dd3fc;
  --a-deep:     #0ea5e9;
  --a-violet:   #a78bfa;
  --a-green:    #34d399;
  --a-coral:    #f87171;
  --a-amber:    #fbbf24;

  /* Gradients */
  --grad-brand: linear-gradient(135deg, #38bdf8, #22d3ee);
  --grad-hero:  linear-gradient(135deg, #7dd3fc 0%, #22d3ee 45%, #a78bfa 100%);
  --grad-warm:  linear-gradient(135deg, #a78bfa, #38bdf8);
  --grad-green: linear-gradient(135deg, #22d3ee, #34d399);
  --glow:       rgba(56,189,248,0.30);
  --glow-violet:rgba(167,139,250,0.26);

  /* Shape */
  --r-sm:  8px;
  --r-md:  14px;
  --r-lg:  20px;
  --r-xl:  28px;

  /* Layout */
  --mw: 1120px;
  --gap: 24px;

  /* Motion */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in:  cubic-bezier(0.4, 0, 1, 1);
}

/* ----- Reset ----- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{
  font-family:'Inter',-apple-system,'PingFang SC','Microsoft YaHei',sans-serif;
  color:var(--t-pri);
  line-height:1.6;
  overflow-x:hidden;
  background:
    radial-gradient(1100px 540px at 50% -8%, rgba(56,189,248,.18), transparent 62%),
    radial-gradient(920px 480px at 88% 32%, rgba(34,211,238,.14), transparent 60%),
    radial-gradient(1000px 560px at 12% 88%, rgba(167,139,250,.15), transparent 62%),
    radial-gradient(820px 520px at 84% 76%, rgba(255,125,50,.12), transparent 60%),
    var(--bg-root);
  background-attachment: fixed;
}

/* ----- 全息网格底纹 (hero 用) ----- */
.holo-grid{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(148,197,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(148,197,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 0%,transparent 75%);
  mask-image:radial-gradient(ellipse 80% 60% at 50% 40%,#000 0%,transparent 75%);
}

/* ----- Ambient Orbs ----- */
.hero-bg{position:absolute;inset:0;overflow:hidden;pointer-events:none}
.hero-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;pointer-events:none;z-index:1}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,11,20,.44) 0%,rgba(7,11,20,.14) 45%,rgba(7,11,20,.62) 100%);z-index:1}
.hero-enter-hint{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);z-index:3;display:flex;flex-direction:column;align-items:center;gap:2px;color:var(--t-sec);cursor:pointer;font-size:12px;letter-spacing:.12em;animation:hint-float 2.2s ease-in-out infinite}
.hero-enter-hint i{width:22px;height:22px}
.hero-enter-hint:hover{color:var(--t-pri)}
@keyframes hint-float{0%,100%{transform:translate(-50%,0)}50%{transform:translate(-50%,8px)}}
.hero-orb{position:absolute;border-radius:50%;filter:blur(100px);opacity:.5;z-index:2}
.hero-orb--a{width:640px;height:640px;top:-160px;left:-120px;background:radial-gradient(circle,rgba(56,189,248,.38),transparent 70%);animation:orb-drift-a 16s ease-in-out infinite}
.hero-orb--b{width:520px;height:520px;top:38%;right:-140px;background:radial-gradient(circle,rgba(34,211,238,.30),transparent 70%);animation:orb-drift-b 18s ease-in-out infinite}
.hero-orb--c{width:460px;height:460px;bottom:-100px;left:28%;background:radial-gradient(circle,rgba(167,139,250,.30),transparent 70%);animation:orb-drift-c 20s ease-in-out infinite}
.hero-orb--d{width:420px;height:420px;bottom:6%;right:18%;background:radial-gradient(circle,rgba(255,125,50,.28),transparent 70%);animation:orb-drift-b 22s ease-in-out infinite}
@keyframes orb-drift-a{0%,100%{transform:translate(0,0)}33%{transform:translate(70px,-50px)}66%{transform:translate(-40px,40px)}}
@keyframes orb-drift-b{0%,100%{transform:translate(0,0)}33%{transform:translate(-60px,-40px)}66%{transform:translate(50px,30px)}}
@keyframes orb-drift-c{0%,100%{transform:translate(0,0)}50%{transform:translate(40px,50px)}}

/* ----- NAV ----- */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:3px 0 22px;transition:background .35s,box-shadow .35s}
.nav.on{background:rgba(7,11,20,.78);backdrop-filter:blur(18px) saturate(1.3);-webkit-backdrop-filter:blur(18px) saturate(1.3);box-shadow:0 1px 0 var(--border)}
.nav-inner{max-width:var(--mw);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;min-height:60px}
.nav-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:var(--t-pri);text-decoration:none;letter-spacing:-.5px;transform:translate(-113px,0)}

/* 全息 Logo（浪拍 · 旋转全息环，与桌面端同款） */
.holo-logo{position:relative;width:46px;height:46px;display:inline-block;flex-shrink:0}
.holo-logo .core{position:absolute;top:50%;left:50%;width:30px;height:30px;margin:-15px 0 0 -15px;border-radius:50%;
  background:radial-gradient(circle at 36% 32%,#eaf8ff 0%,#bae6fd 22%,#7dd3fc 45%,#38bdf8 68%,#0ea5e9 88%,rgba(14,165,233,0) 100%);
  box-shadow:0 0 14px rgba(125,211,252,.75),0 0 30px rgba(34,211,238,.4),inset 0 0 10px rgba(255,255,255,.4);
  animation:holo-breathe 3.4s ease-in-out infinite;overflow:hidden;display:flex;align-items:center;justify-content:center}
.holo-logo .core .brand{font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;font-weight:900;font-style:italic;font-size:12px;letter-spacing:1px;line-height:1;transform:skewX(-8deg);
  background:linear-gradient(120deg,#0b1530 0%,#1e3a8a 28%,#0ea5e9 55%,#06b6d4 78%,#6d28d9 100%);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
  filter:drop-shadow(0 0 3px rgba(125,211,252,.95)) drop-shadow(0 0 1px rgba(255,255,255,.6));user-select:none}
.holo-logo .core::after{content:'';position:absolute;inset:0;border-radius:50%;
  background:conic-gradient(from 0deg,transparent,rgba(255,255,255,.55),transparent 40%);
  animation:holo-swirl 5s linear infinite;mix-blend-mode:screen}
.holo-logo .ring{position:absolute;top:50%;left:50%;width:40px;height:40px;margin:-20px 0 0 -20px;border-radius:50%;border:1px solid transparent;
  border-top-color:rgba(125,211,252,.9);border-right-color:rgba(34,211,238,.35);animation:holo-spin 5s linear infinite}
.holo-logo .ring2{position:absolute;top:50%;left:50%;width:46px;height:46px;margin:-23px 0 0 -23px;border-radius:50%;border:1px solid transparent;
  border-bottom-color:rgba(167,139,250,.5);border-left-color:rgba(56,189,248,.3);animation:holo-spin-rev 8s linear infinite}
@keyframes holo-breathe{0%,100%{opacity:1}50%{opacity:.78}}
@keyframes holo-swirl{to{transform:rotate(360deg)}}
@keyframes holo-spin{to{transform:rotate(360deg)}}
@keyframes holo-spin-rev{to{transform:rotate(-360deg)}}

.brand-hl{background:var(--grad-hero);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;margin-left:1px}
.nav-left{display:flex;align-items:center;gap:44px;min-width:0}
.nav-tools{display:flex;flex-direction:column;align-items:center;gap:46px;min-width:0}
.nav-tools-slogan{font-size:31px;font-weight:800;letter-spacing:.03em;white-space:nowrap;color:#fff}
.nav-tools-slogan .slogan-brand{color:#ff7d32;font-size:1.3em;font-weight:900}
/* 首屏视频页(锁定态)仅隐藏工具列表；品牌/登录位置与产品页保持一致对齐 */
body.locked .nav-tools{display:none}
/* 视频页品牌/登录各再低 1.5cm */
body.locked .nav-brand{transform:translate(-113px,57px)}
body.locked .nav-cta{transform:translate(113px,57px)}
.nav-tools-bar{position:relative;display:inline-flex;align-items:center;padding:11px 22px;border-radius:999px;overflow:hidden;
  background:linear-gradient(115deg,rgba(56,189,248,.16),rgba(34,211,238,.10) 45%,rgba(167,139,250,.18));
  border:1px solid rgba(125,211,252,.32);
  box-shadow:0 0 22px rgba(56,189,248,.22),inset 0 0 16px rgba(125,211,252,.10)}
.nav-tools-bar::before{content:'';position:absolute;inset:0;border-radius:inherit;
  background:linear-gradient(100deg,transparent 25%,rgba(255,255,255,.22) 50%,transparent 75%);
  background-size:220% 100%;animation:bar-sheen 4.5s ease-in-out infinite;pointer-events:none}
@keyframes bar-sheen{0%{background-position:130% 0}100%{background-position:-130% 0}}
.nav-tools-bar a{position:relative;z-index:1;font-size:16px;font-weight:800;color:#eaf4ff;text-decoration:none;padding:0 16px;white-space:nowrap;letter-spacing:.5px;transition:color .2s,text-shadow .2s}
.nav-tools-bar a:hover{color:#fff;text-shadow:0 0 12px rgba(125,211,252,.85)}
.nav-tools-bar .dot{position:relative;z-index:1;flex:0 0 auto;width:5px;height:5px;border-radius:50%;background:rgba(125,211,252,.55);box-shadow:0 0 8px rgba(125,211,252,.8)}
.nav-cta{padding:12px 30px;border-radius:24px;background:var(--bg-glass);border:1px solid var(--border-hi);color:var(--t-pri);text-decoration:none;font-size:16px;font-weight:700;transition:all .25s;transform:translate(113px,0)}
.nav-cta:hover{border-color:rgba(56,189,248,.4);background:rgba(56,189,248,.08);box-shadow:0 0 16px rgba(56,189,248,.18)}

/* ----- HERO ----- */
.hero{position:relative;min-height:100vh;display:flex;align-items:center;justify-content:center;padding:140px 24px 80px;overflow:hidden;transform-origin:left center;transition:transform .9s cubic-bezier(.65,.05,.28,1);backface-visibility:hidden;-webkit-backface-visibility:hidden;will-change:transform}
.hero-body{position:relative;z-index:2;text-align:center;max-width:700px}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--a-ice);letter-spacing:.04em;margin-bottom:22px;text-transform:uppercase;padding:6px 16px;border-radius:999px;background:rgba(56,189,248,.08);border:1px solid rgba(56,189,248,.18)}
.hero-tag::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--a-cyan);box-shadow:0 0 10px var(--a-cyan)}
.hero-title{font-size:clamp(48px,8vw,82px);font-weight:900;line-height:1.05;letter-spacing:-2px;margin-bottom:24px}
.hl-gradient{background:var(--grad-hero);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 22px rgba(56,189,248,.22))}
.hero-desc{font-size:17px;color:var(--t-sec);line-height:1.7;margin-bottom:40px}
.hero-acts{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:56px}

/* Buttons */
.btn-fill,.btn-line{display:inline-flex;align-items:center;gap:8px;padding:14px 30px;border-radius:30px;font-size:15px;font-weight:650;text-decoration:none;transition:all .25s}
.btn-fill{position:relative;background:var(--grad-brand);color:#04121f;box-shadow:0 6px 28px rgba(56,189,248,.32);overflow:hidden}
.btn-fill::after{content:'';position:absolute;top:0;left:-80%;width:60%;height:100%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.5),transparent);transform:skewX(-20deg);animation:btn-sheen 3.6s ease-in-out infinite}
@keyframes btn-sheen{0%{left:-80%}55%{left:130%}100%{left:130%}}
.btn-fill:hover{transform:translateY(-2px);box-shadow:0 10px 40px rgba(56,189,248,.46)}
.btn-line{border:1px solid var(--border-hi);color:var(--t-pri);background:var(--bg-glass)}
.btn-line:hover{border-color:rgba(56,189,248,.4);background:rgba(56,189,248,.07);box-shadow:0 0 20px rgba(56,189,248,.14)}
.btn-t{width:16px;height:16px;flex-shrink:0}
.btn-lg{padding:18px 38px;font-size:17px}

/* Hero metrics */
.hero-nums{display:flex;gap:44px;justify-content:center}
.hnum{display:flex;flex-direction:column;align-items:center;gap:4px}
.hnum strong{font-size:26px;font-weight:750;letter-spacing:-.5px;background:var(--grad-hero);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.hnum small{font-size:12px;color:var(--t-dim);text-transform:uppercase;letter-spacing:.05em}

/* ----- SECTIONS ----- */
.sec{position:relative;padding:110px 24px;max-width:var(--mw);margin:0 auto}
.sec-alt{background:rgba(7,11,20,.40);padding:110px 24px;position:relative;border-top:1px solid rgba(148,197,255,.08)}
.sec::after,.sec-alt::after{content:'';position:absolute;left:10%;right:10%;bottom:0;height:1px;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(125,211,252,.5),transparent);
  box-shadow:0 0 22px rgba(56,189,248,.28),0 0 64px rgba(34,211,238,.16)}
.sec::before,.sec-alt::before{content:'';position:absolute;left:0;right:0;bottom:0;height:150px;pointer-events:none;
  background:linear-gradient(180deg,transparent,rgba(56,189,248,.05))}
.sec-inner{max-width:var(--mw);margin:0 auto}
.sec-hd{text-align:center;margin-bottom:72px}
.sec-chip{display:inline-block;font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.08em;padding:5px 14px;border-radius:12px;background:rgba(56,189,248,.12);color:var(--a-ice);margin-bottom:18px}
.sec-chip--green{background:rgba(34,211,238,.12);color:var(--a-cyan)}
.sec-hd h2{font-size:clamp(30px,5vw,46px);font-weight:800;letter-spacing:-1px;margin-bottom:12px}
.sec-hd p{font-size:16px;color:var(--t-sec)}

/* ----- PRODUCTS ----- */
.prod{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;padding:56px 0;border-bottom:1px solid var(--border)}
.prod:last-child{border-bottom:none;padding-bottom:0}
.prod:first-of-type{padding-top:0}
.prod--rev{direction:rtl}
.prod--rev .prod-info{direction:ltr}

.prod-visual{display:flex;justify-content:center}
.prod-preview{width:100%;max-width:380px;aspect-ratio:4/3;border-radius:var(--r-lg);position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(56,189,248,.16),rgba(34,211,238,.06));
  border:1px solid rgba(56,189,248,.18);display:flex;align-items:center;justify-content:center;
  box-shadow:inset 0 0 60px rgba(56,189,248,.06)}
.prod-preview::before{content:'';position:absolute;inset:-40%;background:conic-gradient(from 0deg,transparent 0 82%,rgba(125,211,252,.28) 90%,transparent 98%);animation:holo-spin 7s linear infinite}
.prod-preview--warm{background:linear-gradient(135deg,rgba(167,139,250,.16),rgba(56,189,248,.06));border-color:rgba(167,139,250,.2)}
.prod-preview--green{background:linear-gradient(135deg,rgba(34,211,238,.14),rgba(52,211,153,.08));border-color:rgba(34,211,238,.2)}
.pv-stage{position:relative;z-index:1;display:flex;flex-direction:column;align-items:center;gap:12px;color:var(--t-sec);font-size:13px;font-weight:500}
.pv-stage i{opacity:.85;color:var(--a-ice)}

.prod-num{display:inline-block;font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--a-ice);margin-bottom:12px}
.prod-info h3{font-size:26px;font-weight:800;letter-spacing:-.5px;margin-bottom:6px}
.prod-sub{font-size:15px;color:var(--a-ice);font-weight:550;margin-bottom:16px}
.prod-desc{font-size:15px;color:var(--t-sec);line-height:1.7;margin-bottom:20px}

.prod-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
.prod-tags span{padding:4px 12px;border-radius:8px;font-size:12px;font-weight:550;background:rgba(148,197,255,.05);color:var(--t-sec);border:1px solid var(--border)}

.prod-modules{display:flex;gap:8px;flex-wrap:wrap;align-items:center;margin-bottom:20px}
.mod-label{font-size:12px;color:var(--t-dim);margin-right:4px}
.prod-modules span:not(.mod-label){padding:3px 10px;border-radius:6px;font-size:11px;background:rgba(56,189,248,.1);color:var(--a-ice)}

.prod-link{display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:600;color:var(--t-pri);text-decoration:none;transition:color .2s}
.prod-link:hover{color:var(--a-ice)}
.prod-cta{display:flex;align-items:center;gap:20px;flex-wrap:wrap;margin-top:6px}
.btn-disabled{opacity:.5;cursor:not-allowed;pointer-events:none}
.btn-download{background:linear-gradient(135deg,#0ea5e9,#22d3ee);color:#04121f}

/* ============================================================
   产品卡视觉 —— 四款各不同
   ============================================================ */
/* ① 拆剧专家：标准分栏（视觉左、文案右） */
.prod--disassembler{gap:56px}

/* ② 短剧大师：全宽横幅（视觉在上、文案居中在下） */
.prod--drama{grid-template-columns:1fr;gap:34px;text-align:center;padding:64px 0}
.prod--drama .prod-visual{width:100%}
.prod--drama .prod-info{max-width:780px;margin:0 auto}
.prod--drama .prod-tags,.prod--drama .prod-modules,.prod--drama .prod-cta{justify-content:center}
.prod--drama .prod-preview{max-width:none;width:100%;aspect-ratio:auto;height:220px}

/* ③ 改剧：反向分栏（视觉右、文案左），绿青色 */
.prod--revision{direction:rtl}
.prod--revision .prod-info{direction:ltr}
.prod--revision .prod-preview{background:linear-gradient(135deg,rgba(34,211,238,.14),rgba(52,211,153,.08));border-color:rgba(34,211,238,.2)}

/* ④ 商户短视频：标准分栏（视觉左），暖色 + 手机竖屏 */
.prod--merchant .prod-preview{max-width:300px;aspect-ratio:auto;height:340px;background:linear-gradient(160deg,rgba(167,139,250,.18),rgba(56,189,248,.06));border-color:rgba(167,139,250,.24)}

/* ---- ① 拆剧专家：视频拆解爆炸图 ---- */
.pv-dissect{position:absolute;inset:0;z-index:1;display:flex;align-items:center;justify-content:center;gap:14px;padding:0 26px}
.dissect-frame{position:relative;flex:0 0 auto;width:44%;aspect-ratio:16/10;border-radius:10px;overflow:hidden;
  background:linear-gradient(135deg,rgba(125,211,252,.18),rgba(56,189,248,.05));
  border:1px solid rgba(125,211,252,.35);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;color:var(--a-ice);box-shadow:0 0 26px rgba(56,189,248,.16)}
.dissect-frame i{opacity:.9}
.dissect-frame span{font-size:11px;font-weight:650;letter-spacing:.1em}
.dissect-scan{position:absolute;top:0;bottom:0;left:0;width:2px;background:linear-gradient(180deg,transparent,var(--a-ice),transparent);box-shadow:0 0 12px var(--a-cyan);animation:dissect-scan 3s ease-in-out infinite}
@keyframes dissect-scan{0%,100%{left:4%}50%{left:96%}}
.dissect-flow{color:var(--a-cyan);opacity:.85;display:flex}
.dissect-stack{display:flex;flex-direction:column;gap:8px;flex:1;min-width:0}
.dissect-layer{padding:7px 10px;border-radius:8px;font-size:11px;font-weight:550;letter-spacing:.04em;
  background:rgba(13,22,42,.88);border:1px solid rgba(125,211,252,.26);color:var(--t-pri);box-shadow:0 6px 18px rgba(4,6,14,.45)}
.dissect-layer b{color:var(--a-ice);font-weight:650;margin-right:3px}

/* ---- ② 短剧大师：胶卷流水线 ---- */
.pv-film{position:absolute;inset:0;z-index:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;padding:0 32px}
.film-strip{position:relative;display:flex;align-items:center;gap:12px;padding:24px 20px;border-radius:12px;
  background:rgba(4,6,14,.55);border:1px solid rgba(125,211,252,.18)}
.film-strip::before,.film-strip::after{content:'';position:absolute;left:10px;right:10px;height:8px;
  background:repeating-linear-gradient(90deg,rgba(148,197,255,.26) 0 9px,transparent 9px 18px)}
.film-strip::before{top:-4px}.film-strip::after{bottom:-4px}
.film-frame{display:flex;flex-direction:column;align-items:center;gap:4px;width:80px;padding:11px 4px;border-radius:8px;
  background:linear-gradient(135deg,rgba(56,189,248,.18),rgba(34,211,238,.06));border:1px solid rgba(56,189,248,.24);color:var(--a-ice)}
.film-frame i{width:18px;height:18px}
.film-frame span{font-size:11px;font-weight:600}
.ff-n{font-size:9px;font-weight:700;color:var(--t-dim);letter-spacing:.1em}
.film-arrow{width:16px;height:16px;color:var(--t-dim);flex:0 0 auto}
.film-progress{width:min(440px,80%);height:4px;border-radius:2px;background:rgba(148,197,255,.1);overflow:hidden}
.film-progress span{display:block;height:100%;background:var(--grad-brand);border-radius:2px;box-shadow:0 0 12px rgba(56,189,248,.6);animation:film-fill 4s ease-in-out infinite}
@keyframes film-fill{0%{width:10%}55%{width:100%}100%{width:100%}}

/* ---- ③ 改剧：红黄标注文档 + S 徽章 + 四路雷达 ---- */
.pv-doc{position:absolute;inset:0;z-index:1;display:flex;align-items:center;justify-content:center;gap:14px;padding:0 26px}
.doc-sheet{position:relative;width:56%;aspect-ratio:3/4;border-radius:10px;background:rgba(7,12,24,.8);border:1px solid rgba(148,197,255,.22);padding:20px 16px;display:flex;flex-direction:column;gap:11px;box-shadow:0 0 30px rgba(34,211,238,.12)}
.doc-sheet-lines i{display:block;height:7px;border-radius:3px;background:rgba(148,197,255,.14)}
.doc-sheet-lines i:nth-child(1){width:78%}
.doc-sheet-lines i:nth-child(2){width:92%}
.doc-sheet-lines i:nth-child(3){width:64%}
.doc-sheet-lines i:nth-child(4){width:86%}
.doc-sheet-lines i:nth-child(5){width:48%}
.doc-mark{position:absolute;left:-10px;width:calc(100% + 20px);height:10px;border-radius:4px;opacity:.9}
.doc-mark--r{background:rgba(248,113,113,.5);border-left:3px solid var(--a-coral)}
.doc-mark--y{background:rgba(251,191,36,.42);border-left:3px solid var(--a-amber)}
.doc-badge{position:absolute;top:-12px;right:-12px;width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--grad-green);color:#04121f;font-size:24px;font-weight:900;font-style:italic;box-shadow:0 0 26px rgba(52,211,153,.5)}
.doc-radar{position:relative;width:68px;height:68px;flex:0 0 auto}
.doc-radar .radar-core{position:absolute;top:50%;left:50%;width:34px;height:34px;margin:-17px 0 0 -17px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(34,211,238,.15);border:1px solid rgba(34,211,238,.4);color:var(--a-cyan)}
.doc-radar .radar-core i{width:16px;height:16px}
.radar-node{position:absolute;width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:9px;font-weight:700;
  background:rgba(13,22,42,.9);border:1px solid rgba(34,211,238,.35);color:var(--a-cyan)}
.radar-node.n1{top:0;left:50%;margin-left:-11px}
.radar-node.n2{top:50%;right:0;margin-top:-11px}
.radar-node.n3{bottom:0;left:50%;margin-left:-11px}
.radar-node.n4{top:50%;left:0;margin-top:-11px}

/* ---- ④ 商户短视频：手机竖屏 + 同城 ---- */
.pv-phone{position:absolute;inset:0;z-index:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:0 26px}
.phone{position:relative;width:150px;height:250px;border-radius:24px;background:#0b1220;border:1px solid rgba(167,139,250,.32);box-shadow:0 0 40px rgba(167,139,250,.22),inset 0 0 0 3px rgba(4,6,14,.8);padding:8px}
.phone-notch{position:absolute;top:10px;left:50%;transform:translateX(-50%);width:56px;height:12px;border-radius:8px;background:rgba(4,6,14,.9);z-index:2}
.phone-screen{position:relative;width:100%;height:100%;border-radius:16px;overflow:hidden;background:linear-gradient(180deg,rgba(167,139,250,.2),rgba(56,189,248,.08));display:flex;flex-direction:column;justify-content:flex-end;padding:12px}
.phone-brand{position:absolute;top:16px;left:50%;transform:translateX(-50%);font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--t-pri);white-space:nowrap}
.phone-actions{display:flex;flex-direction:column;gap:10px;align-items:flex-end;margin-bottom:6px}
.ph-act{width:30px;height:30px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:rgba(4,6,14,.5);border:1px solid rgba(255,255,255,.12);color:var(--t-pri)}
.ph-act i{width:15px;height:15px}
.phone-loc{display:flex;align-items:center;gap:5px;font-size:11px;font-weight:600;color:var(--a-ice);background:rgba(4,6,14,.65);border-radius:999px;padding:5px 10px;width:fit-content}
.phone-loc i{width:12px;height:12px}
.phone-badge{display:flex;align-items:center;gap:5px;padding:7px 14px;border-radius:999px;font-size:12px;font-weight:700;
  background:var(--grad-warm);color:#04121f;box-shadow:0 0 24px rgba(167,139,250,.4);white-space:nowrap}
.phone-badge i{width:13px;height:13px}

/* ----- SHOWCASE ----- */
.showcase-main{margin-bottom:24px}
.sc-stage{position:relative;border-radius:var(--r-lg);overflow:hidden}
.sc-poster{aspect-ratio:16/9;border-radius:var(--r-lg);background:linear-gradient(135deg,rgba(56,189,248,.12),rgba(34,211,238,.05));border:1px solid rgba(56,189,248,.14);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;cursor:pointer;transition:all .35s}
.sc-poster:hover{background:linear-gradient(135deg,rgba(56,189,248,.2),rgba(34,211,238,.08));border-color:rgba(56,189,248,.28)}
.sc-poster-label{font-size:15px;font-weight:600;color:var(--t-sec)}
.sc-play-lg{width:72px;height:72px;border-radius:50%;border:none;background:rgba(148,197,255,.1);color:var(--t-pri);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s;backdrop-filter:blur(8px);box-shadow:0 0 0 1px var(--border-hi),0 0 24px rgba(56,189,248,.16)}
.sc-poster:hover .sc-play-lg{background:var(--grad-brand);transform:scale(1.06)}
.sc-player{width:100%;border-radius:var(--r-lg)}

.showcase-sub{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.sc-poster--sm{aspect-ratio:16/10;gap:12px}
.sc-poster--sm span{font-size:15px;font-weight:600;color:var(--t-sec)}
.sc-play{width:48px;height:48px;border-radius:50%;border:none;background:rgba(148,197,255,.08);color:var(--t-pri);cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s;box-shadow:0 0 0 1px var(--border)}
.sc-poster:hover .sc-play{background:rgba(56,189,248,.2);transform:scale(1.08)}

/* ----- CAPABILITIES ----- */
.cap-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cap-item{padding:28px;border-radius:var(--r-md);background:var(--bg-card);border:1px solid var(--border);transition:all .3s}
.cap-item:hover{border-color:var(--border-hi);background:rgba(13,22,42,.9);box-shadow:0 0 28px rgba(56,189,248,.1)}
.cap-icon{width:40px;height:40px;display:flex;align-items:center;justify-content:center;margin-bottom:16px;border-radius:10px;background:rgba(56,189,248,.12);color:var(--a-ice)}
.cap-icon i{width:20px;height:20px}
.cap-item h4{font-size:16px;font-weight:700;margin-bottom:8px}
.cap-item p{font-size:13px;color:var(--t-sec);line-height:1.6}

/* ----- BANNER (HD Restore) ----- */
.banner{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:48px;border-radius:var(--r-xl);background:linear-gradient(135deg,rgba(34,211,238,.07),rgba(52,211,153,.05));border:1px solid rgba(34,211,238,.14)}
.banner-text h2{font-size:clamp(26px,4vw,38px);font-weight:800;letter-spacing:-1px;margin:16px 0}
.banner-text > p{font-size:15px;color:var(--t-sec);line-height:1.7;margin-bottom:20px}
.banner-list{list-style:none;margin-bottom:28px}
.banner-list li{padding:5px 0;font-size:14px;color:var(--t-sec)}
.banner-list li::before{content:'✓ ';color:var(--a-green);font-weight:700;margin-right:6px}
.banner-visual{display:flex;justify-content:center}
.res-cmp{display:flex;align-items:center;gap:16px}
.res-before,.res-after{padding:28px 36px;border-radius:var(--r-md);font-size:15px;font-weight:750}
.res-before{background:rgba(148,197,255,.03);border:1px solid var(--border);color:var(--t-dim)}
.res-after{background:linear-gradient(135deg,#22d3ee,#34d399);color:#04121f;box-shadow:0 0 34px rgba(34,211,238,.22)}
.res-cmp > i{color:var(--t-dim)}

/* ----- ABOUT / VISION ----- */
.about-block{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-left h2{font-size:clamp(28px,4vw,40px);font-weight:800;letter-spacing:-1px;margin:16px 0}
.about-left p{font-size:15px;color:var(--t-sec);line-height:1.75}

.about-right{display:flex;flex-direction:column;gap:16px}
.about-card{padding:24px;border-radius:var(--r-md);background:var(--bg-card);border:1px solid var(--border);transition:all .3s}
.about-card:hover{border-color:var(--border-hi);background:rgba(13,22,42,.9)}
.about-card-icon{width:36px;height:36px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;border-radius:8px;color:var(--a-ice)}
.about-card-icon i{width:20px;height:20px}
.about-card h4{font-size:15px;font-weight:700;margin-bottom:4px}
.about-card p{font-size:13px;color:var(--t-sec);line-height:1.6}

/* ----- CTA ----- */
.cta{text-align:center;padding:120px 24px}
.cta h2{font-size:clamp(32px,6vw,50px);font-weight:900;letter-spacing:-1px;margin-bottom:14px}
.cta p{font-size:17px;color:var(--t-sec);margin-bottom:38px}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ----- FOOTER ----- */
.footer{padding:60px 24px 28px;background:rgba(7,11,20,.55);border-top:1px solid var(--border)}
.footer-top{max-width:var(--mw);margin:0 auto;display:flex;justify-content:space-between;margin-bottom:40px}
.footer-brand p{color:var(--t-sec);font-size:13px;margin-top:8px}
.footer-domain{color:var(--t-dim)!important;font-size:12px!important;margin-top:2px!important}
.footer-cols{display:flex;gap:64px}
.fcol{display:flex;flex-direction:column;gap:8px}
.fcol strong{font-size:13px;font-weight:700;color:var(--t-pri);margin-bottom:4px}
.fcol a{color:var(--t-sec);font-size:13px;text-decoration:none;transition:color .2s}
.fcol a:hover{color:var(--a-ice)}
.footer-bot{max-width:var(--mw);margin:0 auto;padding-top:24px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--t-dim)}
.footer-beian{display:flex;gap:8px;align-items:center}
.footer-beian a{color:var(--t-dim);text-decoration:none}
.footer-beian a:hover{color:var(--t-sec)}

/* ----- SCROLL FADE ----- */
.fade-in{opacity:0;transform:translateY(28px);transition:opacity .7s var(--ease-out),transform .7s var(--ease-out)}
.fade-in.on{opacity:1;transform:translateY(0)}

/* ----- MODAL ----- */
.modal-overlay{position:fixed;inset:0;z-index:200;background:rgba(2,4,10,.7);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center}
.modal-box{background:var(--bg-raised);border:1px solid var(--border-hi);border-radius:var(--r-lg);padding:36px;width:90%;max-width:440px;max-height:90vh;overflow-y:auto;position:relative;box-shadow:0 0 60px rgba(56,189,248,.14)}
.modal-box h3{font-size:22px;font-weight:800;margin-bottom:4px}
.modal-sub{font-size:14px;color:var(--t-sec);margin-bottom:24px}
.modal-close{position:absolute;top:12px;right:16px;background:none;border:none;color:var(--t-dim);font-size:24px;cursor:pointer}
.modal-close:hover{color:var(--t-pri)}

.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:13px;font-weight:600;color:var(--t-sec);margin-bottom:6px}
.form-group .req{color:var(--a-coral)}
.form-group input,.form-group select,.form-group textarea{width:100%;padding:11px 14px;border-radius:var(--r-sm);background:rgba(148,197,255,.05);border:1px solid var(--border);color:var(--t-pri);font-size:14px;font-family:inherit}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;border-color:rgba(56,189,248,.5);box-shadow:0 0 0 3px rgba(56,189,248,.12)}
.form-group select{appearance:none;cursor:pointer}
.form-group textarea{resize:vertical}

.form-msg{padding:10px 14px;border-radius:var(--r-sm);font-size:13px;margin-bottom:12px}
.form-msg--ok{background:rgba(52,211,153,.12);color:var(--a-green)}
.form-msg--err{background:rgba(248,113,113,.12);color:var(--a-coral)}

/* ----- PRODUCT DETAIL PAGE ----- */
.prod-detail{max-width:800px;margin:0 auto}
.prod-detail-head{text-align:center;margin-bottom:40px}
.prod-detail-head h1{font-size:clamp(30px,5vw,44px);font-weight:800;letter-spacing:-1px;margin:12px 0}
.prod-detail-desc{font-size:16px;color:var(--t-sec);line-height:1.75;max-width:640px;margin:16px auto 0}
.prod-detail-videos h3{font-size:20px;font-weight:700;margin-bottom:20px}
.prod-video-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}

/* ----- RESPONSIVE ----- */
@media(max-width:900px){
  .prod{grid-template-columns:1fr;gap:32px;padding:40px 0}
  .prod--rev{direction:ltr}
  .prod-preview{max-width:100%}
  .core-grid{grid-template-columns:1fr}
  .cap-grid{grid-template-columns:1fr 1fr}
  .showcase-sub{grid-template-columns:1fr}
  .banner{grid-template-columns:1fr;gap:32px}
  .about-block{grid-template-columns:1fr;gap:32px}
  .about-right{justify-content:flex-start}
  .footer-top{flex-direction:column;gap:32px}
  .footer-cols{gap:32px;flex-wrap:wrap}
  .footer-bot{flex-direction:column;gap:8px;text-align:center}
  .nav-tools{display:none}
}

@media(max-width:480px){
  .hero-nums{gap:24px}
  .cap-grid{grid-template-columns:1fr}
  .about-right{gap:20px}
  .about-stat strong{font-size:30px}
  .prod-video-grid{grid-template-columns:1fr}
}


/* ===== 首屏锁屏 + 翻书转场 ===== */
body.locked{overflow:hidden;height:100vh}
.hero.flipped{transform:perspective(1800px) rotateY(-96deg)}
/* 翻页时在书脊处加一道阴影，增强立体感 */
.hero.flipped::after{content:'';position:absolute;top:0;left:0;width:180px;height:100%;background:linear-gradient(90deg,rgba(7,11,20,.85),transparent);pointer-events:none}

/* ============================================================
   四款工具页 —— 各具风格（替换原产品卡片）
   ============================================================ */
.tools{position:relative}
.mono{font-family:'Space Mono',monospace}
.serif{font-family:'Noto Serif SC',serif}
.bebas{font-family:'Bebas Neue',sans-serif}
.kuaile{font-family:'ZCOOL KuaiLe','Noto Sans SC',sans-serif}

/* ---- 01 拆剧专家：等宽终端 · 青绿扫描 ---- */
.t1{position:relative;max-width:var(--mw);margin:0 auto;padding:312px 24px 64px;border-top:1px solid rgba(148,197,255,.08)}
.t1-head h2{font-size:clamp(32px,5vw,54px);font-weight:900;letter-spacing:-1px;margin:12px 0 10px}
.t1-head h2 em{font-style:normal;color:#22d3ee}
.t1-head h2 .t1-brand{color:#ff7d32}
.t1-head .sub{font-size:15px;color:var(--t-sec);max-width:520px;line-height:1.7}
.t1-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.t1-info{transform:translateX(76px)}

/* 终端窗口 mockup：输入 → 拆解 → 产出 */
.t1-term{position:relative;border-radius:16px;background:rgba(7,12,24,.82);border:1px solid rgba(34,211,238,.22);box-shadow:0 24px 70px rgba(0,0,0,.5);overflow:hidden;font-family:'Space Mono',monospace;transform:translateX(-76px)}
.t1-term::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(34,211,238,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(34,211,238,.04) 1px,transparent 1px);background-size:32px 32px;pointer-events:none}
.t1-term-bar{display:flex;align-items:center;gap:6px;padding:12px 16px;border-bottom:1px solid rgba(34,211,238,.14);background:rgba(34,211,238,.05)}
.t1-term-bar .dot{width:11px;height:11px;border-radius:50%}
.t1-term-bar .dot.r{background:#f87171}.t1-term-bar .dot.y{background:#fbbf24}.t1-term-bar .dot.g{background:#34d399}
.t1-term-title{margin-left:10px;font-size:12px;color:var(--t-dim);letter-spacing:.05em}
.t1-term-body{position:relative;padding:22px 22px 26px;display:flex;flex-direction:column;gap:18px}

.t1-in{display:flex;align-items:center;gap:10px}
.t1-prompt{color:#34d399;font-weight:700}
.t1-in-ph{flex:1;min-width:0;font-size:13px;color:#64748b;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.t1-run{flex:0 0 auto;font-size:13px;font-weight:700;color:#04121f;background:linear-gradient(135deg,#22d3ee,#34d399);padding:9px 16px;border-radius:9px;white-space:nowrap}

.t1-out{display:flex;flex-direction:column;gap:12px}
.t1-out-ok{font-size:14px;font-weight:700;color:#34d399}
.t1-out-meta{font-size:11px;color:var(--t-dim);letter-spacing:.02em}
.t1-tabs{display:flex;flex-wrap:wrap;gap:6px}
.t1-tabs span{font-size:11px;color:var(--t-sec);padding:5px 10px;border-radius:7px;background:rgba(34,211,238,.05);border:1px solid rgba(34,211,238,.14);white-space:nowrap}
.t1-tabs span.on{color:#34d399;background:rgba(34,211,238,.12);border-color:rgba(34,211,238,.32)}

.t1-gene{padding:14px 16px;border-radius:12px;background:rgba(13,22,42,.6);border:1px solid rgba(148,197,255,.1);display:flex;flex-direction:column;gap:7px}
.t1-gene-l{font-size:13px;font-weight:700;color:var(--t-pri);margin-bottom:2px}
.t1-gene-k{font-size:10px;color:#34d399;letter-spacing:.06em;text-transform:uppercase}
.t1-gene-v{font-size:12px;color:var(--t-sec);line-height:1.6}

.t1-out-acts{display:flex;flex-wrap:wrap;gap:10px}
.t1-out-btn{font-size:12px;color:var(--t-pri);padding:8px 14px;border-radius:8px;background:rgba(34,211,238,.08);border:1px solid rgba(34,211,238,.22);white-space:nowrap}
.t1-out-btn.hi{color:#04121f;background:linear-gradient(135deg,#22d3ee,#34d399);border-color:transparent;font-weight:700}

/* 特性列表 */
.t1-feats{display:flex;flex-direction:column;gap:18px;margin-top:28px}
.t1-feat{display:flex;align-items:flex-start;gap:14px}
.t1-feat-ic{width:20px;height:20px;color:#34d399;flex:0 0 auto;margin-top:3px}
.t1-feat b{display:block;font-size:15px;color:var(--t-pri);font-weight:700}
.t1-feat span{display:block;font-size:13px;color:var(--t-sec);line-height:1.6;margin-top:3px}
.t1-acts{margin-top:34px;display:flex;align-items:center;gap:18px}
.t1-btn{font-family:'Space Mono',monospace;font-size:14px;font-weight:700;padding:13px 28px;border-radius:10px;background:linear-gradient(135deg,#22d3ee,#34d399);color:#04121f;text-decoration:none;display:inline-block}
.t1-btn.disabled{background:rgba(34,211,238,.07);color:var(--t-dim);border:1px dashed rgba(34,211,238,.35);cursor:not-allowed}
.t1-link{font-family:'Space Mono',monospace;font-size:13px;color:#22d3ee;text-decoration:none}
.t1-link:hover{color:#34d399}

/* ---- 02 短剧大师：电影霓虹 · 全流程制作台 ---- */
.t2{position:relative;max-width:var(--mw);margin:0 auto;padding:72px 24px 64px;border-top:1px solid rgba(148,197,255,.08);scroll-margin-top:150px}
.t2-layout{display:grid;grid-template-columns:.95fr 1.05fr;gap:56px;align-items:center}

/* 制作台终端 */
.t2-console{position:relative;border-radius:16px;background:rgba(7,12,24,.82);border:1px solid rgba(56,189,248,.28);box-shadow:0 24px 70px rgba(0,0,0,.5);overflow:hidden;font-family:'Space Mono',monospace;order:2;transform:translateX(76px)}
.t2-console-bar{display:flex;align-items:center;gap:6px;padding:12px 16px;border-bottom:1px solid rgba(148,197,255,.1);background:rgba(148,197,255,.04)}
.t2-console-bar .dot{width:11px;height:11px;border-radius:50%}
.t2-console-bar .dot.r{background:#f87171}.t2-console-bar .dot.y{background:#fbbf24}.t2-console-bar .dot.g{background:#34d399}
.t2-console-title{margin-left:10px;font-size:12px;color:var(--t-sec);letter-spacing:.5px}
.t2-console-body{padding:22px 22px 26px;display:flex;flex-direction:column;gap:20px}

.t2-proj{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.t2-proj-tag{font-size:11px;font-weight:700;color:#04121f;background:linear-gradient(135deg,#38bdf8,#22d3ee);padding:4px 10px;border-radius:8px;letter-spacing:.5px}
.t2-proj-name{font-size:13px;color:var(--t-pri)}

.t2-steps{display:flex;flex-wrap:wrap;gap:8px}
.t2-steps span{font-size:12px;font-weight:700;padding:7px 13px;border-radius:9px;color:var(--t-dim);background:rgba(148,197,255,.05);border:1px solid rgba(148,197,255,.12)}
.t2-steps span.on{color:#0b1530;background:linear-gradient(135deg,#38bdf8,#22d3ee);border-color:transparent;box-shadow:0 0 14px rgba(56,189,248,.35)}
.t2-steps span.live{color:#04121f;background:linear-gradient(135deg,#22d3ee,#7dd3fc);border-color:transparent;box-shadow:0 0 14px rgba(56,189,248,.45);animation:t2-blink 1.6s ease-in-out infinite}
.t2-steps span.wait{color:var(--t-dim);background:rgba(148,197,255,.05);border:1px dashed rgba(148,197,255,.25)}
@keyframes t2-blink{0%,100%{opacity:1}50%{opacity:.55}}

.t2-engines{display:flex;flex-wrap:wrap;gap:10px}
.t2-engines span{font-size:12px;font-weight:700;padding:8px 15px;border-radius:20px}
.t2-engines span.on{color:#0b1530;background:linear-gradient(135deg,#38bdf8,#22d3ee);box-shadow:0 0 16px rgba(56,189,248,.35)}
.t2-engines span.off{color:var(--t-dim);background:rgba(148,197,255,.05);border:1px solid rgba(148,197,255,.18)}
.t2-engines span.styles{color:#0b1530;background:linear-gradient(135deg,#7dd3fc,#22d3ee);box-shadow:0 0 16px rgba(56,189,248,.35)}

.t2-render .t2-render-hd{font-size:11px;color:var(--t-sec);letter-spacing:.5px;margin-bottom:10px}
.t2-render-bar{height:8px;border-radius:6px;background:rgba(148,197,255,.08);overflow:hidden}
.t2-render-bar span{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,#38bdf8,#22d3ee,#7dd3fc);box-shadow:0 0 14px rgba(56,189,248,.5);animation:t2-load 3.2s ease-in-out infinite}
@keyframes t2-load{0%{width:40%}50%{width:92%}100%{width:40%}}

/* 介绍 */
.t2-info{min-width:0;order:1;transform:translateX(-76px)}
.t2-head{text-align:left}
.t2-head h2{font-size:clamp(32px,5vw,54px);font-weight:900;letter-spacing:-1px;margin:8px 0 12px}
.t2-head h2 em{font-style:normal;background:linear-gradient(120deg,#38bdf8,#22d3ee,#7dd3fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.t2-head .sub{font-size:15px;color:var(--t-sec);line-height:1.7;max-width:520px}
.t2-feats{display:flex;flex-direction:column;gap:16px;margin-top:26px}
.t2-feat{display:flex;align-items:flex-start;gap:14px}
.t2-feat-ic{width:20px;height:20px;color:#38bdf8;flex:0 0 auto;margin-top:3px}
.t2-feat b{display:block;font-size:15px;color:var(--t-pri);font-weight:700}
.t2-feat span{display:block;font-size:13px;color:var(--t-sec);line-height:1.6;margin-top:3px}
.t2-acts{margin-top:32px}
.t2-btn{font-size:15px;font-weight:700;padding:14px 34px;border-radius:30px;background:linear-gradient(135deg,#38bdf8,#22d3ee);color:#0b1530;text-decoration:none;display:inline-block;box-shadow:0 6px 24px rgba(56,189,248,.4)}
.t2-btn.disabled{background:rgba(148,197,255,.06);color:var(--t-dim);border:1px solid rgba(148,197,255,.18);box-shadow:none;cursor:not-allowed}

/* ---- 03 改剧：宋体文学 · 红黄批注 ---- */
.t3{position:relative;max-width:var(--mw);margin:0 auto;padding:72px 24px 64px;border-top:1px solid rgba(148,197,255,.08);scroll-margin-top:150px}
.t3-head{margin-bottom:44px}
.t3-head .tag{font-family:'Noto Serif SC',serif;font-size:13px;color:#f59e0b;letter-spacing:.2em}
.t3-head h2{font-family:'Noto Serif SC',serif;font-size:clamp(32px,5vw,54px);font-weight:900;letter-spacing:0;margin:12px 0 10px}
.t3-head .sub{font-family:'Noto Serif SC',serif;font-size:15px;color:var(--t-sec);line-height:1.8;max-width:560px}
.t3-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:40px;align-items:start}
.t3-doc{position:relative;border-radius:16px;padding:34px;background:#f7f1e3;color:#3a3226;box-shadow:0 24px 60px rgba(0,0,0,.4);font-family:'Noto Serif SC',serif}
.t3-doc::before{content:'';position:absolute;left:0;top:0;bottom:0;width:4px;background:#ef4444;border-radius:16px 0 0 16px}
.t3-doc .hd{font-size:13px;color:#a89b7a;letter-spacing:.1em;margin-bottom:20px;font-family:'Noto Serif SC',serif}
.t3-doc p{font-size:17px;line-height:2.1;margin:6px 0;font-family:'Noto Serif SC',serif}
.t3-red{color:#b91c1c;font-weight:700;text-decoration:underline;text-decoration-color:#ef4444;text-decoration-thickness:2px;text-underline-offset:5px}
.t3-yellow{background:linear-gradient(transparent 60%,#fde68a 60%);padding:0 2px}
.t3-note{display:inline-block;font-size:12px;color:#b91c1c;background:#fee2e2;padding:2px 8px;border-radius:6px;margin-left:8px;font-family:'Noto Serif SC',serif}
.t3-grade{position:sticky;top:120px;text-align:center;padding:36px 24px;border-radius:20px;background:rgba(13,22,42,.7);border:1px solid rgba(148,197,255,.12)}
.t3-s{font-family:'Noto Serif SC',serif;font-size:130px;font-weight:900;line-height:1;background:linear-gradient(135deg,#ef4444,#f59e0b);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 30px rgba(239,68,68,.35))}
.t3-s-label{font-family:'Noto Serif SC',serif;font-size:13px;color:#f59e0b;letter-spacing:.2em;margin-top:6px}
.t3-bar{display:flex;gap:6px;justify-content:center;margin:24px 0}
.t3-bar span{width:40px;height:40px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;color:#64748b;background:rgba(148,197,255,.04);border:1px solid rgba(148,197,255,.12);font-family:'Noto Serif SC',serif}
.t3-bar span.on{color:#fff;background:linear-gradient(135deg,#ef4444,#f59e0b);border-color:transparent;box-shadow:0 0 20px rgba(239,68,68,.4)}
.t3-notes{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.t3-notes span{font-family:'Noto Serif SC',serif;font-size:12px;color:var(--t-pri);padding:5px 12px;border-radius:8px;background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.25)}
.t3-notes span.g{background:rgba(245,158,11,.12);border-color:rgba(245,158,11,.25)}
.t3-acts{margin-top:40px;text-align:center}
.t3-btn{font-family:'Noto Serif SC',serif;font-size:16px;font-weight:700;padding:14px 36px;border-radius:8px;background:linear-gradient(135deg,#ef4444,#f59e0b);color:#fff;text-decoration:none;box-shadow:0 6px 24px rgba(239,68,68,.35);display:inline-block}

/* ---- 04 商户短视频：快乐体 · 暖橙 · 竖屏手机 ---- */
.t4{position:relative;max-width:var(--mw);margin:0 auto;padding:72px 24px 64px;border-top:1px solid rgba(148,197,255,.08);scroll-margin-top:150px}
.t4-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:center}
.t4-phone{justify-self:center;position:relative;width:250px;height:480px;border-radius:34px;background:#0b0f1a;border:3px solid rgba(255,255,255,.2);box-shadow:0 20px 50px rgba(0,0,0,.45),inset 0 0 0 6px #000;overflow:hidden}
.t4-phone::before{content:'';position:absolute;top:10px;left:50%;transform:translateX(-50%);width:90px;height:20px;border-radius:12px;background:#000;z-index:3}
.t4-screen{position:absolute;inset:0;border-radius:31px;overflow:hidden;background:linear-gradient(180deg,#1a1030,#3a1420);display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:10px;padding:0 18px 26px}
.t4-video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0}
.t4-screen .dy{position:relative;z-index:1;font-size:12px;color:#ffd9a0;background:rgba(254,44,85,.25);padding:5px 12px;border-radius:16px}
.t4-screen .loc{position:relative;z-index:1;font-size:12px;color:#9fb3cc}
.t4-head{text-align:left}
.t4-head h2{font-size:clamp(28px,4vw,44px);font-weight:900;letter-spacing:-1px;margin:8px 0 12px}
.t4-head h2 em{font-style:normal;background:linear-gradient(120deg,#38bdf8,#22d3ee,#7dd3fc);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.t4-head h2 .t4-ed{font-size:.52em;font-weight:700;color:var(--t-sec);letter-spacing:0;margin-left:6px;white-space:nowrap}
.t4-head .sub{font-size:15px;color:var(--t-sec);line-height:1.7;max-width:520px}
.t4-feats{display:flex;flex-direction:column;gap:16px;margin-top:26px}
.t4-feat{display:flex;align-items:flex-start;gap:14px}
.t4-feat-ic{width:20px;height:20px;color:#38bdf8;flex:0 0 auto;margin-top:3px}
.t4-feat b{display:block;font-size:15px;color:var(--t-pri);font-weight:700}
.t4-feat span{display:block;font-size:13px;color:var(--t-sec);line-height:1.6;margin-top:3px}
.t4-acts{margin-top:32px}
.t4-btn{font-size:15px;font-weight:700;padding:14px 34px;border-radius:30px;background:linear-gradient(135deg,#38bdf8,#22d3ee);color:#0b1530;text-decoration:none;display:inline-block;box-shadow:0 6px 24px rgba(56,189,248,.4)}
.t4-btn.disabled{background:rgba(148,197,255,.06);color:var(--t-dim);border:1px solid rgba(148,197,255,.18);box-shadow:none;cursor:not-allowed}

@media(max-width:900px){
  .t1-layout{grid-template-columns:1fr;gap:40px}
  .t2-layout{grid-template-columns:1fr;gap:40px}
  .t3-layout{grid-template-columns:1fr}
  .t3-grade{position:static}
  .t4-layout{grid-template-columns:1fr}
  .t4-phone{width:220px;height:420px}
}