/* ============================================
   砼箴科技 — Sub-Pages (White / Minimal)
   Apple-style: generous whitespace, restrained type
   ============================================ */

body.white-page{background:var(--bg-light);color:var(--text-primary-light)}

/* ======== Page Hero Banner ======== */
.page-hero{
  position:relative;
  background:var(--bg-warm);
  padding:clamp(120px, 16vw, 200px) clamp(20px, 4vw, 48px) clamp(64px, 8vw, 100px);
  text-align:center;
  overflow:hidden;
}
.page-hero::before{
  content:'';position:absolute;
  top:-40%;left:50%;transform:translateX(-50%);
  width:600px;height:600px;
  background:radial-gradient(circle, rgba(139,92,246,0.06) 0%, transparent 70%);
  pointer-events:none;
}
.page-hero .badge{
  display:inline-block;
  padding:7px 18px;
  background:rgba(139,92,246,0.08);
  border:1px solid rgba(139,92,246,0.15);
  border-radius:100px;
  font-size:12px;color:var(--purple-600);
  letter-spacing:0.10em;text-transform:uppercase;
  font-weight:500;
  margin-bottom:clamp(20px, 2.5vw, 32px);
}
.page-hero h1{
  font-size:clamp(32px, 5vw, 64px);
  font-weight:600;letter-spacing:-0.03em;
  line-height:1.12;
  color:var(--text-primary-light);
  margin-bottom:clamp(16px, 2vw, 28px);
}
.page-hero .subtitle{
  font-size:clamp(15px, 1.3vw, 19px);
  color:var(--text-secondary-light);
  max-width:640px;margin:0 auto;
  line-height:1.75;
}

/* ======== Content Section ======== */
.content-section{
  max-width:var(--max-width);
  margin:0 auto;
  padding:clamp(64px, 8vw, 120px) clamp(20px, 4vw, 48px);
}
.content-section + .content-section{padding-top:0}

/* Section header */
.sec-header{
  margin-bottom:clamp(48px, 6vw, 80px);
}
.sec-header.center{text-align:center}
.sec-header .eyebrow{
  display:block;
  font-size:12px;font-weight:500;
  letter-spacing:0.12em;text-transform:uppercase;
  color:var(--purple-600);
  margin-bottom:16px;
}
.sec-header h2{
  font-size:clamp(24px, 3.2vw, 42px);
  font-weight:600;letter-spacing:-0.02em;
  line-height:1.2;margin-bottom:14px;
  color:var(--text-primary-light);
}
.sec-header h2.gradient{
  background:linear-gradient(135deg, var(--purple-700) 0%, var(--purple-500) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
}
.sec-header .lead{
  font-size:clamp(14px, 1.1vw, 17px);
  color:var(--text-secondary-light);
  max-width:560px;line-height:1.7;
}
.sec-header.center .lead{margin:0 auto 8px}

/* ======== Wide Info Card ======== */
.info-card{
  background:var(--bg-warm);
  border:1px solid var(--border-light);
  border-radius:var(--radius-lg);
  padding:clamp(36px, 5vw, 60px) clamp(28px, 5vw, 56px);
  transition:border-color 0.4s ease, box-shadow 0.4s ease;
}
.info-card:hover{
  border-color:rgba(139,92,246,0.15);
  box-shadow:0 4px 32px rgba(0,0,0,0.03);
}
.info-card h3{
  font-size:clamp(20px, 2.2vw, 28px);
  font-weight:600;margin-bottom:12px;
  letter-spacing:-0.015em;
}
.info-card .desc{
  color:var(--text-secondary-light);
  margin-bottom:clamp(28px, 4vw, 40px);
  font-size:15px;line-height:1.7;
}

/* Tag list */
.tag-list{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-bottom:20px;
}
.tag-list .tag{
  padding:7px 18px;
  background:rgba(139,92,246,0.06);
  border:1px solid rgba(139,92,246,0.12);
  border-radius:100px;
  font-size:13px;color:var(--purple-600);
  letter-spacing:0.04em;
}
.tag-list .tag-light{
  font-size:12px;color:var(--text-tertiary-light);
  padding:5px 12px;
  border:1px solid var(--border-light);
  border-radius:6px;
}

/* ======== Two-Column Cards ======== */
.card-2col{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(24px, 3vw, 36px);
}
.card-white{
  background:#fff;
  border:1px solid var(--border-light);
  border-radius:var(--radius-lg);
  padding:clamp(32px, 5vw, 52px) clamp(28px, 5vw, 44px);
  transition:all 0.45s var(--ease-out);
  box-shadow:0 1px 3px rgba(0,0,0,0.02);
}
.card-white:hover{
  border-color:rgba(139,92,246,0.18);
  box-shadow:0 12px 40px rgba(0,0,0,0.05);
  transform:translateY(-2px);
}
.card-white .icon-svg{
  width:44px;height:44px;color:var(--purple-500);
  margin-bottom:clamp(20px, 2.5vw, 28px);
}
.card-white h4{
  font-size:clamp(19px, 2vw, 25px);
  font-weight:600;margin-bottom:8px;
  letter-spacing:-0.015em;
}
.card-white .tag-line{
  font-size:13px;color:var(--purple-600);
  margin-bottom:24px;letter-spacing:0.03em;
}
.card-white ul{list-style:none}
.card-white ul li{
  position:relative;padding-left:22px;
  margin-bottom:14px;
  font-size:15px;color:var(--text-secondary-light);
  line-height:1.65;
}
.card-white ul li::before{
  content:'';position:absolute;
  left:0;top:11px;
  width:5px;height:5px;border-radius:50%;
  background:var(--purple-500);
}

/* ======== Stat Row (light) ======== */
.stat-row-light{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:clamp(16px, 2vw, 28px);
}
.stat-card{
  background:#fff;
  border:1px solid var(--border-light);
  border-radius:var(--radius-lg);
  padding:clamp(28px, 3.5vw, 44px) clamp(16px, 2vw, 28px);
  text-align:center;
  transition:all 0.45s var(--ease-out);
  box-shadow:0 1px 3px rgba(0,0,0,0.02);
}
.stat-card:hover{
  border-color:rgba(139,92,246,0.18);
  box-shadow:0 8px 32px rgba(0,0,0,0.04);
  transform:translateY(-2px);
}
.stat-card .big{
  display:block;
  font-size:clamp(28px, 3.2vw, 44px);
  font-weight:600;
  background:linear-gradient(135deg, var(--purple-600) 0%, var(--purple-400) 100%);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  margin-bottom:10px;
}
.stat-card .small{font-size:14px;color:var(--text-secondary-light);letter-spacing:0.04em}

/* ======== N-Column Card Grid ======== */
.card-grid{display:grid;gap:clamp(16px, 2vw, 24px)}
.card-grid.cols-5{grid-template-columns:repeat(5,1fr)}
.card-grid.cols-4{grid-template-columns:repeat(4,1fr)}
.card-grid.cols-3{grid-template-columns:repeat(3,1fr)}

.grid-card{
  background:#fff;
  border:1px solid var(--border-light);
  border-radius:var(--radius-md);
  padding:clamp(28px, 3.5vw, 42px) clamp(20px, 2.5vw, 30px);
  transition:all 0.45s var(--ease-out);
  box-shadow:0 1px 3px rgba(0,0,0,0.02);
}
.grid-card:hover{
  border-color:rgba(139,92,246,0.18);
  box-shadow:0 12px 36px rgba(0,0,0,0.04);
  transform:translateY(-3px);
}
.grid-card .idx{
  display:block;
  font-size:11px;font-weight:500;
  color:var(--purple-500);
  letter-spacing:0.10em;margin-bottom:16px;
}
.grid-card h4{
  font-size:17px;font-weight:600;
  margin-bottom:10px;line-height:1.3;
}
.grid-card p{
  font-size:13px;color:var(--text-secondary-light);
  line-height:1.65;
}
.grid-card .key-badge{
  display:inline-block;margin-top:16px;
  font-size:11px;color:var(--purple-600);
  padding:4px 12px;
  background:rgba(139,92,246,0.05);
  border:1px solid rgba(139,92,246,0.10);
  border-radius:100px;letter-spacing:0.05em;
}

/* Grid card with icon */
.grid-card .icon-sm{
  width:36px;height:36px;color:var(--purple-500);
  margin-bottom:20px;
}

/* ======== Timeline (light) ======== */
.timeline-light{
  position:relative;
  padding-left:clamp(32px, 5vw, 60px);
  max-width:960px;margin:0 auto;
}
.timeline-light::before{
  content:'';position:absolute;
  left:19px;top:0;bottom:0;
  width:1px;
  background:linear-gradient(180deg, var(--purple-400) 0%, rgba(139,92,246,0.08) 100%);
}
.tl-item{
  position:relative;
  margin-bottom:clamp(56px, 7vw, 88px);
}
.tl-item:last-child{margin-bottom:0}
.tl-marker{
  position:absolute;
  left:clamp(-32px, -5vw, -60px);
  top:12px;
  width:13px;height:13px;border-radius:50%;
  background:var(--purple-500);
  box-shadow:0 0 20px rgba(139,92,246,0.3);
  transform:translateX(22.5px);
}
.tl-card{
  background:#fff;
  border:1px solid var(--border-light);
  border-radius:var(--radius-lg);
  padding:clamp(30px, 4vw, 48px) clamp(28px, 4vw, 48px);
  box-shadow:0 1px 3px rgba(0,0,0,0.02);
  transition:all 0.45s var(--ease-out);
}
.tl-card:hover{
  border-color:rgba(139,92,246,0.15);
  box-shadow:0 8px 32px rgba(0,0,0,0.04);
}
.tl-card .phase-tag{
  display:inline-block;
  padding:5px 14px;
  background:rgba(139,92,246,0.07);
  border-radius:100px;
  font-size:12px;color:var(--purple-600);
  letter-spacing:0.08em;margin-bottom:16px;
}
.tl-card h4{
  font-size:clamp(18px, 2vw, 25px);
  font-weight:600;margin-bottom:12px;
}
.tl-card p{
  font-size:15px;color:var(--text-secondary-light);
  line-height:1.7;margin-bottom:16px;
}
.tl-card .result{
  font-size:13px;color:var(--purple-600);
  letter-spacing:0.03em;
}

/* ======== Quote Block ======== */
.quote-block{
  max-width:780px;margin:0 auto;text-align:center;
  padding:clamp(36px, 5vw, 60px) 0;
}
.quote-block p{
  font-size:clamp(17px, 1.8vw, 24px);
  color:var(--text-secondary-light);
  line-height:1.8;position:relative;
  font-weight:400;
}
.quote-block p::before{
  content:'"';position:absolute;
  left:-28px;top:-12px;
  font-size:56px;color:var(--purple-400);
  opacity:0.2;font-family:Georgia,serif;line-height:1;
}

/* ======== Value Card (centered text) ======== */
.value-centered{text-align:center}
.value-centered h4{
  font-size:clamp(20px, 2vw, 26px);
  font-weight:600;margin-bottom:18px;
}
.value-centered p{
  font-size:15px;color:var(--text-secondary-light);
  line-height:1.8;max-width:440px;margin:0 auto;
}

/* ======== Closing Quote ======== */
.closing{
  margin-top:clamp(64px, 8vw, 120px);text-align:center;
  padding-top:clamp(40px, 5vw, 72px);
  border-top:1px solid var(--border-light);
}
.closing p{
  font-size:clamp(15px, 1.3vw, 18px);
  color:var(--text-secondary-light);
  font-style:italic;letter-spacing:0.03em;line-height:1.8;
}

/* ======== CTA Banner ======== */
.cta-strip{
  background:var(--bg-warm);
  border-radius:var(--radius-lg);
  padding:clamp(36px, 5vw, 56px);
  text-align:center;
}
.cta-strip h3{
  font-size:clamp(20px, 2.2vw, 28px);
  font-weight:600;margin-bottom:12px;
}
.cta-strip p{
  font-size:15px;color:var(--text-secondary-light);
  max-width:500px;margin:0 auto 28px;
}

/* ======== Breadcrumb ======== */
.breadcrumb{
  font-size:13px;color:var(--text-tertiary-light);
  margin-bottom:clamp(32px, 4vw, 48px);
}
.breadcrumb a{color:var(--purple-600);transition:color 0.3s}
.breadcrumb a:hover{color:var(--purple-700)}
.breadcrumb span{color:var(--text-tertiary-light)}

/* ======== Responsive ======== */
@media(max-width:1024px){
  .card-grid.cols-5{grid-template-columns:repeat(3,1fr)}
  .card-grid.cols-4{grid-template-columns:repeat(2,1fr)}
  .card-2col{grid-template-columns:1fr}
  .stat-row-light{grid-template-columns:repeat(2,1fr)}
}

@media(max-width:768px){
  .card-grid.cols-5{grid-template-columns:repeat(2,1fr)}
  .card-grid.cols-3{grid-template-columns:1fr 1fr}
  .page-hero{padding:110px 20px 56px}
  .timeline-light{padding-left:36px}
}

@media(max-width:640px){
  .card-grid.cols-5{grid-template-columns:1fr 1fr}
  .card-grid.cols-4{grid-template-columns:1fr}
  .card-grid.cols-3{grid-template-columns:1fr}
  .card-2col{grid-template-columns:1fr;gap:16px}
  .stat-row-light{grid-template-columns:1fr 1fr;gap:12px}
  .page-hero h1{font-size:30px}
  .content-section{padding:56px 16px}
  .sec-header{margin-bottom:40px}
  .quote-block p::before{left:-16px;top:-6px;font-size:36px}
  .tl-item{margin-bottom:40px}
}

@media(max-width:380px){
  .card-grid.cols-5,.card-grid.cols-4,.card-grid.cols-3{grid-template-columns:1fr}
  .stat-row-light{grid-template-columns:1fr}
}

@media(prefers-reduced-motion:reduce){
  .card-white,.grid-card,.stat-card,.tl-card{transition:none}
}