/* ============================================================
   影子团队官网 · 品牌设计系统
   品牌色板: #FFB300体系 | Token: 4px网格 | 动效: only transform/opacity
   字体: PingFang SC, Microsoft YaHei, sans-serif
   ============================================================ */

/* ── CSS Variables / Design Tokens ── */
:root {
  /* Brand Colors */
  --yellow: #FFB300;
  --yellow-bright: #FFD600;
  --yellow-deep: #FF8F00;
  --yellow-bg: #FFF3CD;
  --yellow-pale: #FFFDE7;

  /* Dark Colors */
  --ink: #1A1A2E;
  --ink-mid: #2D3561;
  --ink-body: #4B5378;

  /* Neutral */
  --gray: #6B7280;
  --gray-light: #94A3B8;
  --white: #FFFFFF;
  --bg-alt: #FAFAFA;

  /* Blue Blocks */
  --blue-dark: #1E3A5F;
  --blue-light: #EEF2F7;
  --blue-pale: #F5F7FA;

  /* Gradients */
  --grad-gold: linear-gradient(135deg, #FFD600 0%, #FFB300 50%, #FF8F00 100%);
  --grad-soft: linear-gradient(135deg, #FFFDE7 0%, #FFF3CD 50%, #FFE082 100%);
  --grad-deep: linear-gradient(135deg, #1A1A2E 0%, #2D3561 40%, #1E3A5F 100%);

  /* Spacing (4px grid) */
  --sp-4: 4px;   --sp-8: 8px;   --sp-12: 12px;  --sp-16: 16px;
  --sp-20: 20px; --sp-24: 24px; --sp-32: 32px;  --sp-40: 40px;
  --sp-48: 48px; --sp-64: 64px; --sp-80: 80px;  --sp-96: 96px;

  /* Font Sizes */
  --fs-12: 12px; --fs-14: 14px; --fs-15: 15px; --fs-16: 16px;
  --fs-18: 18px; --fs-20: 20px; --fs-22: 22px; --fs-24: 24px;
  --fs-26: 26px; --fs-30: 30px; --fs-34: 34px; --fs-38: 38px;
  --fs-42: 42px; --fs-48: 48px; --fs-54: 54px; --fs-60: 60px; --fs-72: 72px;

  /* Line Heights */
  --lh-tight: 1.2;
  --lh-normal: 1.5;
  --lh-loose: 1.8;

  /* Border Radius */
  --r-sm: 4px;   --r-md: 6px;   --r-lg: 8px;
  --r-10: 10px;  --r-12: 12px;  --r-16: 16px;
  --r-24: 24px;  --r-full: 9999px;

  /* Shadows */
  --sh-sm: 0 1px 3px rgba(26,26,46,0.08);
  --sh-md: 0 4px 12px rgba(26,26,46,0.1);
  --sh-lg: 0 8px 32px rgba(26,26,46,0.12);
  --sh-gold: 0 4px 20px rgba(255,179,0,0.25);

  /* Layout */
  --header-h: 64px;
  --max-w: 1200px;
}

/* ── Reset ── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  font-size:var(--fs-16);line-height:var(--lh-normal);
  color:var(--ink-body);background:var(--white);
  -webkit-font-smoothing:antialiased; -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--yellow-deep);text-decoration:none;transition:color 180ms ease-out}
a:hover{color:var(--yellow)}
ul,ol{list-style:none}

/* ── Container ── */
.container{width:100%;max-width:var(--max-w);margin:0 auto;padding:0 var(--sp-24)}
@media(max-width:768px){.container{padding:0 var(--sp-16)}}

/* ── Section ── */
.section{padding:var(--sp-80) 0}
.section-alt{background:var(--bg-alt)}
.section-yellow{background:var(--yellow-pale)}
.section-deep{background:var(--grad-deep);color:var(--white)}
.section-blue{background:var(--blue-dark);color:var(--white)}
@media(max-width:768px){.section{padding:var(--sp-48) 0}}

/* ── Section Header ── */
.section-header{text-align:center;margin-bottom:var(--sp-48);opacity:0;transform:translateY(20px);transition:opacity 600ms ease-out,transform 600ms ease-out}
.section-header.visible{opacity:1;transform:translateY(0)}
.section-label{
  display:inline-block;font-size:var(--fs-14);font-weight:600;
  color:var(--yellow-deep);letter-spacing:0.08em;text-transform:uppercase;
  margin-bottom:var(--sp-12);padding:var(--sp-4) var(--sp-16);
  background:var(--yellow-pale);border-radius:var(--r-full);
}
.section-title{
  font-size:var(--fs-34);font-weight:700;color:var(--ink);line-height:var(--lh-tight);
  margin-bottom:var(--sp-16);
}
.section-desc{font-size:var(--fs-18);color:var(--gray);max-width:600px;margin:0 auto}
@media(max-width:768px){
  .section-title{font-size:var(--fs-26)}
  .section-desc{font-size:var(--fs-16)}
}

/* ── Header ── */
.header{position:fixed;top:0;left:0;right:0;z-index:1000;height:var(--header-h);background:rgba(255,255,255,0.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid transparent;transition:background 200ms ease-out,border-color 200ms ease-out,box-shadow 200ms ease-out}
.header.scrolled{border-bottom-color:rgba(0,0,0,0.06);box-shadow:var(--sh-sm)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:100%}
.header-logo{font-size:var(--fs-20);font-weight:700;color:var(--ink);display:flex;align-items:center;gap:var(--sp-4)}
.logo-accent{background:var(--grad-gold);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.header-nav{display:flex;align-items:center;gap:var(--sp-4)}
.header-nav a{font-size:var(--fs-14);font-weight:500;color:var(--ink-body);padding:var(--sp-8) var(--sp-12);border-radius:var(--r-md);transition:color 180ms ease-out,background 180ms ease-out}
.header-nav a:hover,.header-nav a.active{color:var(--yellow-deep);background:var(--yellow-pale)}
.header-cta{font-size:var(--fs-14);font-weight:600;color:var(--white)!important;background:var(--grad-gold);padding:var(--sp-8) var(--sp-20);border-radius:var(--r-full);box-shadow:var(--sh-gold);transition:transform 180ms ease-out,box-shadow 180ms ease-out}
.header-cta:hover{transform:translateY(-1px);box-shadow:0 6px 24px rgba(255,179,0,0.35)}
.header-mobile-toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:var(--sp-8);min-width:44px;min-height:44px}
.header-mobile-toggle span{display:block;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:transform 200ms ease-out,opacity 200ms ease-out}
@media(max-width:900px){
  .header-nav,.header-cta{display:none}
  .header-mobile-toggle{display:flex}
}

/* ── Mobile Nav ── */
.mobile-nav{position:fixed;top:var(--header-h);left:0;right:0;background:rgba(255,255,255,0.97);backdrop-filter:blur(16px);padding:var(--sp-16) var(--sp-24);display:flex;flex-direction:column;gap:var(--sp-4);z-index:999;transform:translateY(-110%);opacity:0;transition:transform 350ms ease-out,opacity 350ms ease-out;pointer-events:none}
.mobile-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
.mobile-nav a{font-size:var(--fs-16);font-weight:500;color:var(--ink-body);padding:var(--sp-12) var(--sp-16);border-radius:var(--r-md);transition:background 150ms ease-out;display:block}
.mobile-nav a:hover{background:var(--yellow-pale);color:var(--yellow-deep)}
.mobile-nav .mobile-cta{background:var(--grad-gold);color:var(--white);text-align:center;font-weight:600;margin-top:var(--sp-8);border-radius:var(--r-full)}

/* ── Hero (Index) ── */
.hero{position:relative;padding:calc(var(--header-h) + var(--sp-80)) 0 var(--sp-80);background:var(--grad-deep);color:var(--white);overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;right:-20%;width:600px;height:600px;background:radial-gradient(circle,rgba(255,179,0,0.15) 0%,transparent 70%);border-radius:50%;pointer-events:none}
.hero::after{content:'';position:absolute;bottom:-30%;left:-10%;width:400px;height:400px;background:radial-gradient(circle,rgba(255,214,0,0.1) 0%,transparent 70%);border-radius:50%;pointer-events:none}
.hero-inner{position:relative;z-index:1;text-align:center}
.hero-badge{display:inline-block;font-size:var(--fs-14);font-weight:600;color:var(--yellow-bright);padding:var(--sp-8) var(--sp-20);background:rgba(255,255,255,0.1);border:1px solid rgba(255,179,0,0.3);border-radius:var(--r-full);margin-bottom:var(--sp-24)}
.hero-title{font-size:var(--fs-48);font-weight:800;line-height:var(--lh-tight);margin-bottom:var(--sp-24);color:var(--white)}
.hero-title .highlight{background:var(--grad-gold);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{font-size:var(--fs-18);color:rgba(255,255,255,0.8);max-width:700px;margin:0 auto var(--sp-32);line-height:var(--lh-loose)}
.hero-actions{display:flex;gap:var(--sp-16);justify-content:center;flex-wrap:wrap;margin-bottom:var(--sp-48)}
@media(max-width:768px){
  .hero-title{font-size:var(--fs-34)}
  .hero-subtitle{font-size:var(--fs-16)}
}

/* ── Hero Stats ── */
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--sp-24);max-width:800px;margin:0 auto}
.hero-stat{text-align:center;padding:var(--sp-20);background:rgba(255,255,255,0.08);border-radius:var(--r-12);border:1px solid rgba(255,255,255,0.1);transition:transform 200ms ease-out;cursor:default}
.hero-stat:hover{transform:translateY(-4px)}
.hero-stat-value{font-size:var(--fs-42);font-weight:800;color:var(--yellow-bright);line-height:1}
.hero-stat-label{font-size:var(--fs-14);color:rgba(255,255,255,0.7);margin-top:var(--sp-8)}
@media(max-width:768px){.hero-stats{grid-template-columns:repeat(2,1fr)}.hero-stat-value{font-size:var(--fs-30)}}
@media(max-width:480px){.hero-stats{grid-template-columns:1fr}}

/* ── Buttons ── */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--sp-8);font-size:var(--fs-16);font-weight:600;padding:var(--sp-14) var(--sp-32);border-radius:var(--r-full);cursor:pointer;border:none;transition:transform 180ms ease-out,box-shadow 180ms ease-out,opacity 180ms ease-out;min-height:44px;line-height:var(--lh-tight);color:var(--ink)}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--grad-gold);color:var(--ink);box-shadow:var(--sh-gold)}
.btn-primary:hover{box-shadow:0 6px 28px rgba(255,179,0,0.4)}
.btn-outline{background:transparent;color:var(--white);border:2px solid rgba(255,255,255,0.3)}
.btn-outline:hover{background:rgba(255,255,255,0.1);border-color:var(--yellow-bright)}

/* ── Pain Cards ── */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-24)}
.pain-card{background:var(--white);padding:var(--sp-32);border-radius:var(--r-16);border:1px solid rgba(0,0,0,0.06);box-shadow:var(--sh-sm);transition:transform 250ms ease-out,box-shadow 250ms ease-out;opacity:0;transform:translateY(24px);cursor:pointer}
.pain-card.visible{opacity:1;transform:translateY(0)}
.pain-card:hover{transform:translateY(-6px);box-shadow:var(--sh-lg);border-color:var(--yellow)}
.pain-card-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--yellow-pale);border-radius:var(--r-12);margin-bottom:var(--sp-16);color:var(--yellow-deep)}
.pain-card-icon svg{width:24px;height:24px}
.pain-card-title{font-size:var(--fs-18);font-weight:700;color:var(--ink);margin-bottom:var(--sp-8);line-height:var(--lh-tight)}
.pain-card-desc{font-size:var(--fs-15);color:var(--ink-body);line-height:var(--lh-loose);margin-bottom:var(--sp-12)}
.pain-card-tag{display:inline-block;font-size:var(--fs-12);font-weight:600;color:var(--yellow-deep);background:var(--yellow-pale);padding:var(--sp-4) var(--sp-12);border-radius:var(--r-full)}
@media(max-width:900px){.pain-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.pain-grid{grid-template-columns:1fr}}

/* ── Solution Cards ── */
.solution-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-24)}
.solution-card{background:var(--white);padding:var(--sp-32);border-radius:var(--r-16);border:1px solid rgba(0,0,0,0.06);box-shadow:var(--sh-sm);transition:transform 250ms ease-out,box-shadow 250ms ease-out;opacity:0;transform:translateY(24px);position:relative;overflow:hidden}
.solution-card::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:var(--grad-gold);border-radius:var(--r-sm) 0 0 var(--r-sm)}
.solution-card.visible{opacity:1;transform:translateY(0)}
.solution-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.solution-card-num{font-size:var(--fs-42);font-weight:800;color:var(--yellow);line-height:1;margin-bottom:var(--sp-12);opacity:0.6}
.solution-card h3{font-size:var(--fs-20);font-weight:700;color:var(--ink);margin-bottom:var(--sp-8);line-height:var(--lh-tight)}
.solution-card p{font-size:var(--fs-15);color:var(--ink-body);line-height:var(--lh-loose)}
@media(max-width:900px){.solution-grid{grid-template-columns:repeat(2,1fr)}}@media(max-width:600px){.solution-grid{grid-template-columns:1fr}}

/* ── CTA Banner ── */
.cta-banner{background:var(--grad-gold);color:var(--ink);text-align:center;padding:var(--sp-48) var(--sp-32);border-radius:var(--r-24);box-shadow:var(--sh-gold)}
.cta-banner h2{font-size:var(--fs-30);font-weight:800;margin-bottom:var(--sp-12);line-height:var(--lh-tight)}
.cta-banner p{font-size:var(--fs-16);opacity:0.85;margin-bottom:var(--sp-24);max-width:600px;margin-left:auto;margin-right:auto}
.cta-banner .btn{background:var(--ink);color:var(--yellow-bright);box-shadow:0 4px 20px rgba(26,26,46,0.3)}
.cta-banner .btn:hover{opacity:0.92}
@media(max-width:768px){.cta-banner h2{font-size:var(--fs-24)}.cta-banner{padding:var(--sp-32) var(--sp-20)}}

/* ── Footer ── */
.footer{background:var(--ink);color:rgba(255,255,255,0.7);padding:var(--sp-64) 0 var(--sp-32)}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:var(--sp-48);margin-bottom:var(--sp-40)}
.footer-brand h3{font-size:var(--fs-22);font-weight:700;color:var(--white);margin-bottom:var(--sp-12)}
.footer-brand p{font-size:var(--fs-14);line-height:var(--lh-loose)}
.footer-nav h4{font-size:var(--fs-14);font-weight:600;color:var(--yellow);margin-bottom:var(--sp-16);text-transform:uppercase;letter-spacing:0.05em}
.footer-nav a{display:block;font-size:var(--fs-14);color:rgba(255,255,255,0.6);padding:var(--sp-4) 0;transition:color 150ms ease-out}
.footer-nav a:hover{color:var(--yellow-bright)}
.footer-nav p{font-size:var(--fs-14);line-height:var(--lh-loose)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.1);padding-top:var(--sp-24);text-align:center;font-size:var(--fs-12);color:rgba(255,255,255,0.4)}
@media(max-width:768px){.footer-inner{grid-template-columns:1fr;gap:var(--sp-32)}}

/* ── Page Hero (sub-pages) ── */
.page-hero{position:relative;padding:calc(var(--header-h) + var(--sp-48)) 0 var(--sp-48);background:var(--grad-deep);color:var(--white);overflow:hidden}
.page-hero::before{content:'';position:absolute;top:-30%;right:-10%;width:300px;height:300px;background:radial-gradient(circle,rgba(255,179,0,0.12) 0%,transparent 70%);border-radius:50%;pointer-events:none}
.page-hero-label{display:inline-block;font-size:var(--fs-14);font-weight:600;color:var(--yellow-bright);padding:var(--sp-4) var(--sp-16);background:rgba(255,179,0,0.15);border-radius:var(--r-full);margin-bottom:var(--sp-16)}
.page-hero-title{font-size:var(--fs-42);font-weight:800;line-height:var(--lh-tight);margin-bottom:var(--sp-12);color:var(--white)}
.page-hero-desc{font-size:var(--fs-18);color:rgba(255,255,255,0.75);max-width:650px;line-height:var(--lh-loose)}
@media(max-width:768px){.page-hero-title{font-size:var(--fs-30)}.page-hero-desc{font-size:var(--fs-16)}}

/* ── Page Nav (sticky sub-nav) ── */
.page-nav{position:sticky;top:var(--header-h);z-index:100;background:var(--white);border-bottom:1px solid rgba(0,0,0,0.06);overflow-x:auto;-webkit-overflow-scrolling:touch}
.page-nav-inner{display:flex;gap:var(--sp-4);padding:var(--sp-12) 0;white-space:nowrap}
.page-nav-inner a{font-size:var(--fs-14);font-weight:500;color:var(--ink-body);padding:var(--sp-8) var(--sp-16);border-radius:var(--r-md);transition:color 150ms ease-out,background 150ms ease-out;display:inline-block}
.page-nav-inner a:hover,.page-nav-inner a.active{color:var(--yellow-deep);background:var(--yellow-pale)}

/* ── Breadcrumb ── */
.breadcrumb{display:flex;align-items:center;gap:var(--sp-8);font-size:var(--fs-14);color:var(--gray-light);margin-bottom:var(--sp-32);flex-wrap:wrap}
.breadcrumb a{color:var(--gray);font-weight:500}
.breadcrumb a:hover{color:var(--yellow-deep)}
.breadcrumb .sep{color:var(--gray-light)}
.breadcrumb .current{color:var(--ink-body);font-weight:600}

/* ── Heading with Number Badge System ── */
.h2-num{display:inline-flex;align-items:center;justify-content:center;font-size:var(--fs-12);font-weight:700;color:var(--yellow-deep);background:var(--yellow-pale);width:28px;height:28px;border-radius:var(--r-md);margin-right:var(--sp-8);vertical-align:middle;flex-shrink:0}
.h3-num{display:inline-flex;align-items:center;justify-content:center;font-size:var(--fs-12);font-weight:600;color:var(--yellow-deep);background:var(--yellow-pale);width:24px;height:24px;border-radius:var(--r-md);margin-right:var(--sp-8);vertical-align:middle;flex-shrink:0}
.h4-num{display:inline-flex;align-items:center;justify-content:center;font-size:var(--fs-12);font-weight:500;color:var(--yellow-deep);border:1px solid var(--yellow);width:22px;height:22px;border-radius:var(--r-sm);margin-right:var(--sp-8);vertical-align:middle;flex-shrink:0}

/* ── Heading Styles ── */
.prose{max-width:860px;margin:0 auto}
.prose h2{font-size:var(--fs-26);font-weight:700;color:var(--ink);line-height:var(--lh-tight);margin:var(--sp-48) 0 var(--sp-20);padding-left:var(--sp-16);border-left:4px solid var(--yellow)}
.prose h3{font-size:var(--fs-20);font-weight:700;color:var(--ink);line-height:var(--lh-tight);margin:var(--sp-32) 0 var(--sp-12);padding-left:var(--sp-12);border-left:3px solid var(--yellow)}
.prose h4{font-size:var(--fs-18);font-weight:600;color:var(--ink-mid);margin:var(--sp-24) 0 var(--sp-8)}
.prose p{font-size:var(--fs-16);color:var(--ink-body);line-height:var(--lh-loose);margin-bottom:var(--sp-16)}
.prose strong{color:var(--ink);font-weight:600}

/* ── Feature Table ── */
.feature-table{width:100%;border-collapse:collapse;margin:var(--sp-24) 0;font-size:var(--fs-14);border-radius:var(--r-12);overflow:hidden;box-shadow:var(--sh-sm)}
.feature-table thead{background:var(--ink)}
.feature-table thead th{padding:var(--sp-16);color:var(--yellow-bright);font-weight:600;text-align:left;font-size:var(--fs-14)}
.feature-table tbody td{padding:var(--sp-12) var(--sp-16);border-bottom:1px solid rgba(0,0,0,0.05);color:var(--ink-body);line-height:var(--lh-loose)}
.feature-table tbody tr{background:var(--white);transition:background 150ms ease-out}
.feature-table tbody tr:nth-child(even){background:var(--bg-alt)}
.feature-table tbody tr:hover{background:var(--yellow-pale)}

/* ── Perspective Tabs ── */
.perspective-tabs{display:flex;gap:var(--sp-8);margin:var(--sp-32) 0 var(--sp-24);flex-wrap:wrap}
.perspective-tab{font-size:var(--fs-15);font-weight:600;color:var(--ink-body);padding:var(--sp-12) var(--sp-24);background:var(--bg-alt);border:2px solid transparent;border-radius:var(--r-full);cursor:pointer;transition:all 200ms ease-out;display:flex;align-items:center;gap:var(--sp-8);min-height:44px}
.perspective-tab:hover{background:var(--yellow-pale);color:var(--yellow-deep)}
.perspective-tab.active{background:var(--white);color:var(--yellow-deep);border-color:var(--yellow);box-shadow:var(--sh-gold)}
.perspective-content{display:none;animation:fadeSlideIn 400ms ease-out}
.perspective-content.active{display:block}
@keyframes fadeSlideIn{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

/* ── Perspective Mini Cards ── */
.mini-card{background:var(--white);padding:var(--sp-24);border-radius:var(--r-12);border:1px solid rgba(0,0,0,0.06);box-shadow:var(--sh-sm);margin-bottom:var(--sp-16);transition:transform 200ms ease-out,box-shadow 200ms ease-out}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.mini-card-header{display:flex;align-items:center;gap:var(--sp-12);margin-bottom:var(--sp-8)}
.mini-card-icon{width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:var(--yellow-pale);border-radius:var(--r-lg);color:var(--yellow-deep);flex-shrink:0}
.mini-card-icon svg{width:20px;height:20px}
.mini-card h4{font-size:var(--fs-16);font-weight:700;color:var(--ink);line-height:var(--lh-tight);margin:0;padding:0;border:none}
.mini-card p{font-size:var(--fs-14);color:var(--ink-body);line-height:var(--lh-loose);margin:0}

/* ── Blockquote / Pull Quote ── */
.pull-quote{position:relative;padding:var(--sp-32) var(--sp-40);margin:var(--sp-32) 0;background:var(--yellow-pale);border-radius:var(--r-16);border-left:4px solid var(--yellow)}
.pull-quote::before{content:'"';position:absolute;top:var(--sp-12);left:var(--sp-20);font-size:var(--fs-60);color:var(--yellow);line-height:1;font-weight:800;opacity:0.3}
.pull-quote p{font-size:var(--fs-18);font-style:italic;color:var(--ink);line-height:var(--lh-loose);margin:0}
.pull-quote .quote-signature{font-size:var(--fs-14);color:var(--gray);margin-top:var(--sp-12);font-style:normal;font-weight:600}

/* ── Comparison Box ── */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:var(--sp-24);margin:var(--sp-32) 0}
.compare-box{padding:var(--sp-32);border-radius:var(--r-16)}
.compare-box.traditional{background:var(--bg-alt);border:1px solid rgba(0,0,0,0.08)}
.compare-box.shadow{background:var(--yellow-pale);border:2px solid var(--yellow);position:relative}
.compare-box.shadow::after{content:'✓';position:absolute;top:var(--sp-16);right:var(--sp-20);width:32px;height:32px;display:flex;align-items:center;justify-content:center;background:var(--grad-gold);color:var(--ink);border-radius:50%;font-weight:800;font-size:var(--fs-16)}
.compare-box h4{font-size:var(--fs-18);font-weight:700;margin-bottom:var(--sp-16);display:flex;align-items:center;gap:var(--sp-8)}
.compare-box ul{margin:0}
.compare-box li{font-size:var(--fs-14);color:var(--ink-body);padding:var(--sp-8) 0;padding-left:var(--sp-20);position:relative;line-height:var(--lh-normal)}
.compare-box li::before{content:'';position:absolute;left:0;top:50%;width:8px;height:8px;border-radius:50%;transform:translateY(-50%)}
.compare-box.traditional li::before{background:var(--gray-light)}
.compare-box.shadow li::before{background:var(--yellow)}
@media(max-width:600px){.compare-grid{grid-template-columns:1fr}}

/* ── Icon Grid Cards ── */
.icon-card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-20)}
.icon-card{background:var(--white);padding:var(--sp-24);border-radius:var(--r-12);border:1px solid rgba(0,0,0,0.06);box-shadow:var(--sh-sm);transition:transform 200ms ease-out,box-shadow 200ms ease-out;text-align:center}
.icon-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--yellow)}
.icon-card-icon{width:56px;height:56px;display:flex;align-items:center;justify-content:center;background:var(--yellow-pale);border-radius:var(--r-16);margin:0 auto var(--sp-16);color:var(--yellow-deep)}
.icon-card-icon svg{width:28px;height:28px}
.icon-card h4{font-size:var(--fs-16);font-weight:700;color:var(--ink);margin-bottom:var(--sp-8);line-height:var(--lh-tight);padding:0;border:none}
.icon-card p{font-size:var(--fs-14);color:var(--ink-body);line-height:var(--lh-loose);margin:0}
@media(max-width:900px){.icon-card-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:500px){.icon-card-grid{grid-template-columns:1fr}}

/* ── Case Cards ── */
.case-card{display:flex;gap:var(--sp-32);background:var(--white);border-radius:var(--r-16);border:1px solid rgba(0,0,0,0.06);box-shadow:var(--sh-sm);overflow:hidden;margin-bottom:var(--sp-32);transition:transform 250ms ease-out,box-shadow 250ms ease-out}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg)}
.case-card-image{flex-shrink:0;width:300px;min-height:220px}
.case-card-image-placeholder{width:100%;height:100%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg-alt);color:var(--gray-light);gap:var(--sp-12);min-height:220px}
.case-card-image-placeholder svg{opacity:0.4}
.case-card-image-placeholder p{font-size:var(--fs-14);color:var(--gray-light);margin:0}
.case-card-body{padding:var(--sp-24);flex:1;display:flex;flex-direction:column;justify-content:center}
.case-card-tag{display:inline-block;font-size:var(--fs-12);font-weight:600;color:var(--yellow-deep);background:var(--yellow-pale);padding:var(--sp-4) var(--sp-12);border-radius:var(--r-full);margin-bottom:var(--sp-12);align-self:flex-start}
.case-card-body h3{font-size:var(--fs-22);font-weight:700;color:var(--ink);margin-bottom:var(--sp-12);padding:0;border:none;line-height:var(--lh-tight)}
.case-meta{display:flex;gap:var(--sp-16);flex-wrap:wrap;margin-bottom:var(--sp-16)}
.case-meta-item{font-size:var(--fs-14);color:var(--ink-mid);padding:var(--sp-8) var(--sp-16);background:var(--blue-pale);border-radius:var(--r-md)}
.case-meta-item strong{font-size:var(--fs-24);color:var(--blue-dark);display:block;line-height:1}
.case-label{display:inline-block;font-size:var(--fs-12);font-weight:700;color:var(--yellow-deep);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:var(--sp-4)}
.case-pain,.case-result{font-size:var(--fs-14);color:var(--ink-body);line-height:var(--lh-loose);margin-bottom:var(--sp-8)}
@media(max-width:768px){.case-card{flex-direction:column}.case-card-image{width:100%;min-height:180px}}
.case-placeholder{text-align:center;padding:var(--sp-48);background:var(--bg-alt);border-radius:var(--r-16);border:2px dashed rgba(0,0,0,0.1)}
.case-placeholder-icon{font-size:var(--fs-42);margin-bottom:var(--sp-12)}
.case-placeholder h4{font-size:var(--fs-18);color:var(--ink);margin-bottom:var(--sp-8);padding:0;border:none}
.case-placeholder p{font-size:var(--fs-14);color:var(--gray);margin:0}

/* ── Advantage Grid ── */
.adv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-24);margin:var(--sp-24) 0}
.adv-card{background:var(--white);padding:var(--sp-32);border-radius:var(--r-16);border:1px solid rgba(0,0,0,0.06);box-shadow:var(--sh-sm);transition:transform 250ms ease-out,box-shadow 250ms ease-out;opacity:0;transform:translateY(24px)}
.adv-card.visible{opacity:1;transform:translateY(0)}
.adv-card:hover{transform:translateY(-4px);box-shadow:var(--sh-lg);border-color:var(--yellow)}
.adv-card-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--grad-gold);border-radius:var(--r-12);margin-bottom:var(--sp-16);color:var(--ink)}
.adv-card-icon svg{width:24px;height:24px}
.adv-card h4{font-size:var(--fs-18);font-weight:700;color:var(--ink);margin-bottom:var(--sp-8);line-height:var(--lh-tight);padding:0;border:none}
.adv-card p{font-size:var(--fs-14);color:var(--ink-body);line-height:var(--lh-loose);margin:0}
@media(max-width:768px){.adv-grid{grid-template-columns:1fr}}

/* ── Guarantee Grid ── */
.guarantee-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--sp-20);margin:var(--sp-24) 0}
.guarantee-card{background:var(--white);padding:var(--sp-24);border-radius:var(--r-12);border:1px solid rgba(0,0,0,0.06);box-shadow:var(--sh-sm);transition:transform 250ms ease-out,box-shadow 250ms ease-out;opacity:0;transform:translateY(24px);text-align:center}
.guarantee-card.visible{opacity:1;transform:translateY(0)}
.guarantee-card:hover{transform:translateY(-4px);box-shadow:var(--sh-md);border-color:var(--yellow)}
.guarantee-card-icon{width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--yellow-pale);border-radius:50%;margin:0 auto var(--sp-16);color:var(--yellow-deep)}
.guarantee-card-icon svg{width:24px;height:24px}
.guarantee-card h4{font-size:var(--fs-16);font-weight:700;color:var(--ink);margin-bottom:var(--sp-8);line-height:var(--lh-tight);padding:0;border:none}
.guarantee-card p{font-size:var(--fs-14);color:var(--ink-body);line-height:var(--lh-loose);margin:0}
@media(max-width:900px){.guarantee-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:500px){.guarantee-grid{grid-template-columns:1fr}}

/* ── Blue Blocks ── */
.section-blue .prose h2{color:var(--white);border-left-color:var(--yellow-bright)}
.section-blue .prose h2 .h2-num{color:var(--yellow-bright);background:rgba(255,179,0,0.2)}
.section-blue .prose p{color:rgba(255,255,255,0.8)}
.section-blue .prose strong{color:var(--yellow-bright)}
.blue-block{background:rgba(255,255,255,0.08);border:1px solid rgba(255,255,255,0.12);border-radius:var(--r-12);padding:var(--sp-24);margin-bottom:var(--sp-16);transition:transform 200ms ease-out}
.blue-block:hover{transform:translateX(4px)}
.blue-block h4{font-size:var(--fs-16);font-weight:700;color:var(--yellow-bright);margin-bottom:var(--sp-8);padding:0;border:none}
.blue-block p{font-size:var(--fs-14);color:rgba(255,255,255,0.75);line-height:var(--lh-loose);margin:0}

/* ── Pain Analysis Card (large) ── */
.pain-analysis-card{background:var(--white);padding:var(--sp-32);border-radius:var(--r-16);border:1px solid rgba(0,0,0,0.06);box-shadow:var(--sh-sm);margin-bottom:var(--sp-24);transition:transform 200ms ease-out,box-shadow 200ms ease-out}
.pain-analysis-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.pain-analysis-card .card-header{display:flex;align-items:flex-start;gap:var(--sp-16);margin-bottom:var(--sp-16)}
.pain-analysis-card .card-icon{width:52px;height:52px;display:flex;align-items:center;justify-content:center;background:var(--yellow-pale);border-radius:var(--r-12);color:var(--yellow-deep);flex-shrink:0;margin-top:var(--sp-4)}
.pain-analysis-card .card-icon svg{width:26px;height:26px}
.pain-analysis-card .card-title-group h3{font-size:var(--fs-20);font-weight:700;color:var(--ink);margin:0 0 var(--sp-4);padding:0;border:none;line-height:var(--lh-tight)}
.pain-analysis-card .card-title-group .card-num{font-size:var(--fs-12);font-weight:600;color:var(--yellow-deep);text-transform:uppercase;letter-spacing:0.05em}
.pain-analysis-card .card-tags{display:flex;gap:var(--sp-8);flex-wrap:wrap;margin-bottom:var(--sp-12)}
.pain-analysis-card .card-tags span{font-size:var(--fs-12);font-weight:600;padding:var(--sp-4) var(--sp-12);border-radius:var(--r-full)}
.pain-analysis-card .card-tags .tag-red{background:#FFF0F0;color:#C44}
.pain-analysis-card .card-tags .tag-orange{background:var(--yellow-pale);color:var(--yellow-deep)}
.pain-analysis-card .card-tags .tag-blue{background:var(--blue-light);color:var(--blue-dark)}
.pain-analysis-card p{font-size:var(--fs-15);color:var(--ink-body);line-height:var(--lh-loose);margin:0}

/* ── Checklist ── */
.check-list{margin:var(--sp-20) 0}
.check-list li{font-size:var(--fs-16);color:var(--ink-body);padding:var(--sp-12) 0 var(--sp-12) var(--sp-32);position:relative;line-height:var(--lh-normal);border-bottom:1px solid rgba(0,0,0,0.04)}
.check-list li::before{content:'☐';position:absolute;left:0;top:var(--sp-12);font-size:var(--fs-18);color:var(--gray-light)}
.check-list li:last-child{border-bottom:none}

/* ── Highlight Box ── */
.highlight-box{background:var(--yellow-pale);border:1px solid var(--yellow);border-radius:var(--r-12);padding:var(--sp-24);margin:var(--sp-24) 0}

/* ── Contact Grid ── */
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--sp-20);margin:var(--sp-24) 0}
.contact-item{background:var(--white);padding:var(--sp-24);border-radius:var(--r-12);border:1px solid rgba(0,0,0,0.06);box-shadow:var(--sh-sm);transition:transform 200ms ease-out}
.contact-item:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.contact-item-icon{font-size:var(--fs-30);margin-bottom:var(--sp-8)}
.contact-item-label{font-size:var(--fs-12);font-weight:600;color:var(--gray);text-transform:uppercase;letter-spacing:0.05em;margin-bottom:var(--sp-4)}
.contact-item-value{font-size:var(--fs-16);font-weight:600;color:var(--ink);word-break:break-all}
.contact-item-value a{color:var(--ink)}
.contact-item-value a:hover{color:var(--yellow-deep)}
@media(max-width:500px){.contact-grid{grid-template-columns:1fr}}

/* ── Image Placeholder Block ── */
.img-placeholder{display:flex;flex-direction:column;align-items:center;justify-content:center;background:var(--bg-alt);border:2px dashed rgba(0,0,0,0.1);border-radius:var(--r-16);padding:var(--sp-48);margin:var(--sp-32) 0;color:var(--gray-light);gap:var(--sp-12)}
.img-placeholder svg{opacity:0.3}
.img-placeholder p{font-size:var(--fs-14);margin:0}

/* ── Page Nav Arrows ── */
.page-nav-arrows{display:flex;justify-content:space-between;padding-top:var(--sp-40);margin-top:var(--sp-48);border-top:1px solid rgba(0,0,0,0.08)}
.page-nav-prev,.page-nav-next{font-size:var(--fs-15);font-weight:600;color:var(--ink-body);padding:var(--sp-8) var(--sp-16);border-radius:var(--r-md);transition:color 150ms ease-out,background 150ms ease-out}
.page-nav-prev:hover,.page-nav-next:hover{color:var(--yellow-deep);background:var(--yellow-pale)}

/* ── Back To Top ── */
.back-to-top{position:fixed;bottom:var(--sp-32);right:var(--sp-32);width:48px;height:48px;display:flex;align-items:center;justify-content:center;background:var(--white);border:1px solid rgba(0,0,0,0.1);border-radius:50%;box-shadow:var(--sh-md);cursor:pointer;opacity:0;transform:translateY(16px);pointer-events:none;transition:opacity 250ms ease-out,transform 250ms ease-out;z-index:900}
.back-to-top.visible{opacity:1;transform:translateY(0);pointer-events:auto}
.back-to-top:hover{background:var(--yellow-pale);border-color:var(--yellow);transform:translateY(-4px)}

/* ── Tier Layout (team levels) ── */
.tier-grid{display:flex;flex-direction:column;gap:var(--sp-24);margin:var(--sp-32) 0}
.tier-card{display:flex;align-items:flex-start;gap:var(--sp-24);padding:var(--sp-32);background:var(--white);border-radius:var(--r-16);border:1px solid rgba(0,0,0,0.06);box-shadow:var(--sh-sm);transition:transform 200ms ease-out}
.tier-card:hover{transform:translateX(4px)}
.tier-card .tier-badge{width:56px;height:56px;display:flex;align-items:center;justify-content:center;border-radius:50%;font-size:var(--fs-24);flex-shrink:0;font-weight:700}
.tier-card.tier-top .tier-badge{background:var(--grad-gold);color:var(--ink)}
.tier-card.tier-mid .tier-badge{background:var(--ink-mid);color:var(--yellow-bright)}
.tier-card.tier-bot .tier-badge{background:var(--blue-dark);color:var(--white)}
.tier-card h4{font-size:var(--fs-18);font-weight:700;color:var(--ink);margin-bottom:var(--sp-4);padding:0;border:none}
.tier-card p{font-size:var(--fs-15);color:var(--ink-body);line-height:var(--lh-loose);margin:0}
@media(max-width:600px){.tier-card{flex-direction:column;align-items:center;text-align:center}}

/* ── Stats Grid (part5-style) ── */
.stat-bar{display:flex;align-items:center;gap:var(--sp-16);padding:var(--sp-16) var(--sp-24);background:var(--white);border-radius:var(--r-12);border:1px solid rgba(0,0,0,0.06);margin-bottom:var(--sp-12)}
.stat-bar-num{font-size:var(--fs-30);font-weight:800;color:var(--yellow-deep);line-height:1;min-width:64px;text-align:center}
.stat-bar-label{font-size:var(--fs-14);color:var(--ink-body);line-height:var(--lh-normal)}

/* ── Flow Track (5 stages) ── */
.flow-track{display:flex;gap:0;position:relative;overflow-x:auto;padding:var(--sp-32) 0}
.flow-track::before{content:'';position:absolute;top:56px;left:60px;right:60px;height:2px;background:linear-gradient(90deg,var(--yellow) 0%,var(--yellow-bright) 50%,var(--yellow-deep) 100%);z-index:0}
.flow-step{flex:1;min-width:140px;text-align:center;position:relative;z-index:1}
.flow-step-num{width:48px;height:48px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--white);border:3px solid var(--yellow);font-size:var(--fs-20);font-weight:800;color:var(--yellow-deep);margin:0 auto var(--sp-16)}
.flow-step-title{font-size:var(--fs-16);font-weight:700;color:var(--ink);margin-bottom:var(--sp-4)}
.flow-step-desc{font-size:var(--fs-13);color:var(--gray);line-height:var(--lh-normal)}
@media(max-width:768px){.flow-track{flex-direction:column;gap:var(--sp-24)}.flow-track::before{display:none}}

/* ── Orphan Fix: last row items keep same column width as siblings ── */
/* 3-col grids: solution-grid (desktop 3-col), pain-grid, icon-card-grid, guarantee-grid */
.solution-grid > :last-child:nth-child(3n+1),
.pain-grid > :last-child:nth-child(3n+1),
.icon-card-grid > :last-child:nth-child(3n+1),
.guarantee-grid > :last-child:nth-child(3n+1) {
  grid-column: span 1;
}
/* 2-col grids: adv-grid, contact-grid */
.adv-grid > :last-child:nth-child(odd),
.contact-grid > :last-child:nth-child(odd) {
  grid-column: span 1;
}
/* Tablet: solution-grid switches to 2-col, re-apply odd-child rule */
@media(max-width:900px) and (min-width:601px){
  .solution-grid > :last-child:nth-child(odd) {
    grid-column: span 1;
  }
}
/* Mobile: no orphan fix needed (single column) */
@media(max-width:600px){
  .solution-grid > :last-child:nth-child(3n+1),
  .solution-grid > :last-child:nth-child(odd),
  .adv-grid > :last-child:nth-child(odd),
  .pain-grid > :last-child:nth-child(3n+1),
  .icon-card-grid > :last-child:nth-child(3n+1),
  .guarantee-grid > :last-child:nth-child(3n+1),
  .contact-grid > :last-child:nth-child(odd) {
    grid-column: auto;
  }
}

/* ── Reduced Motion ── */
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:0.01ms!important;animation-iteration-count:1!important;
    transition-duration:0.01ms!important;scroll-behavior:auto!important
  }
}

/* ── Utility ── */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}