/* ============================================
   锦沛霖 JinPeiLin — Aman-inspired Design
   ============================================ */

/* --- CSS Custom Properties --- */
:root {
  --color-bg-dark: #1a1a1c;
  --color-bg-medium: #2a2a2d;
  --color-bg-light: #f5f3f0;
  --color-bg-cream: #faf8f5;
  --color-bg-white: #ffffff;
  --color-text-dark: #1a1a1c;
  --color-text-medium: #555555;
  --color-text-light: #b8b4ab;
  --color-text-white: #e8e5df;
  --color-text-muted: #8a8780;
  --color-accent: #d97757;
  --color-accent-light: #e68a6e;
  --color-accent-subtle: rgba(217, 119, 87, 0.10);
  --color-accent-pill: rgba(217, 119, 87, 0.10);
  --color-border: #e0dcd5;
  --color-border-dark: #3a3a3d;
  --color-border-navy: rgba(232, 229, 223, 0.08);
  --color-text-nd: #eae6db;
  --color-text-nd-secondary: #9a9688;
  --color-text-nd-tertiary: #6a6660;
  --font-serif: 'Noto Serif SC', 'Songti SC', 'STSong', Georgia, serif;
  --font-sans: 'Noto Sans SC', 'PingFang SC', 'Hiragino Sans GB', 'Heiti SC', 'Microsoft YaHei', system-ui, sans-serif;
  --font-mono: 'DM Mono', 'SF Mono', 'Menlo', monospace;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 32px;
  --space-lg: 64px;
  --space-xl: 96px;
  --space-xxl: 144px;
  --max-width: 1120px;
  --max-width-narrow: 760px;
  --nav-height: 72px;
  --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
}

/* --- Reset --- */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{
  font-family:var(--font-serif);
  font-size:17px;line-height:1.8;letter-spacing:0.01em;
  color:var(--color-text-dark);background:var(--color-bg-cream);
  overflow-x:hidden
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
b,strong{font-weight:600}
sup{font-size:0.55em;vertical-align:super;color:var(--color-accent)}

/* --- Typography (unified across all pages) --- */
h1{font-family:var(--font-serif);font-size:clamp(2rem,5vw,3.5rem);font-weight:300;line-height:1.35;letter-spacing:0.03em}
h2{font-family:var(--font-serif);font-size:clamp(1.6rem,2.8vw,2.4rem);font-weight:600;line-height:1.18;letter-spacing:-0.01em;color:var(--color-text-dark)}
h3{font-family:var(--font-serif);font-size:1.125rem;font-weight:500;line-height:1.3;color:var(--color-text-dark)}
h4{font-family:var(--font-serif);font-size:1rem;font-weight:500;color:var(--color-text-dark)}
.eyebrow{font-family:var(--font-sans);font-size:0.75rem;font-weight:500;letter-spacing:0.06em;text-transform:uppercase;color:var(--color-accent)}
.section-header h2{margin-top:12px}

/* --- Layout --- */
.container{max-width:var(--max-width);margin:0 auto;padding:0 32px}
.container-sm{max-width:var(--max-width-narrow);margin:0 auto;padding:0 32px}
.section{padding:var(--space-xxl) 0}
.section-header{text-align:center;margin-bottom:72px}
.section-heading{font-family:var(--font-serif);font-size:clamp(1.75rem,3vw,2.5rem);font-weight:600;line-height:1.18;letter-spacing:-0.01em;margin-bottom:var(--space-xl);color:var(--color-text-dark)}

/* --- Grids --- */
.g2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.g3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}

/* ============================================
   NAVIGATION
   ============================================ */

.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  padding:0 var(--space-md);
  transition:background 0.5s var(--ease-out-expo),box-shadow 0.5s var(--ease-out-expo);
}
.nav.scrolled{
  background:rgba(250,248,245,0.88);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  box-shadow:0 0 0 1px var(--color-border);
}
.nav-inner{
  max-width:var(--max-width);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  height:var(--nav-height);
}
.nav-logo{font-family:var(--font-serif);font-size:1.5rem;font-weight:500;color:var(--color-text-dark);letter-spacing:0.04em;margin-left:-2em}
.nav-links{display:flex;align-items:center;gap:var(--space-md);list-style:none}
.nav-link{
  font-family:var(--font-sans);font-size:0.9rem;font-weight:400;
  letter-spacing:0.06em;text-transform:uppercase;
  color:var(--color-text-medium);
  transition:color 0.3s;position:relative;
}
.nav-link::after{
  content:'';position:absolute;bottom:-4px;left:0;width:0;height:1px;
  background:var(--color-accent);transition:width 0.3s var(--ease-out-expo);
}
.nav-link:hover{color:var(--color-text-dark)}
.nav-link:hover::after{width:100%}
.nav-link-cta{
  color:var(--color-accent);border:1px solid var(--color-accent);
  padding:8px 20px;border-radius:2px;
  transition:background 0.3s,color 0.3s;
}
.nav-link-cta:hover{background:var(--color-accent);color:var(--color-text-white)}
.nav-link-cta::after{display:none}
.mobile-btn{
  display:none;flex-direction:column;gap:5px;
  background:none;border:none;cursor:pointer;padding:4px;
}
.mobile-btn span{display:block;width:22px;height:1.5px;background:var(--color-text-dark);transition:transform 0.3s,opacity 0.3s}

/* ============================================
   ① HERO
   ============================================ */

.hero{
  min-height:90vh;display:flex;align-items:center;
  padding:140px 0 80px;
  background:var(--color-bg-cream);
}
.hero-content{max-width:660px}
.hero-eyebrow{margin-top:-1lh;margin-bottom:var(--space-md);color:var(--color-accent)}
.hero-title{
  font-family:var(--font-serif);
  font-size:clamp(2.4rem,5.5vw,4rem);
  font-weight:600;
  line-height:1.08;
  letter-spacing:-0.02em;
  color:var(--color-text-dark);
  margin-bottom:28px;
}
.hero-line{display:block}
.hero-text-block{display:inline-block}
.hero-subtitle{font-family:var(--font-serif);font-size:1.45rem;font-weight:500;line-height:1.4;color:var(--color-text-dark);margin-bottom:0}
.hero-attribution{font-family:var(--font-serif);font-size:1rem;font-weight:400;color:var(--color-text-medium);text-align:right;margin-top:2em;margin-bottom:40px;padding-right:3em}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-sans);font-size:0.9rem;font-weight:400;line-height:1;
  letter-spacing:0.1em;text-transform:uppercase;
  padding:14px 36px;border-radius:2px;cursor:pointer;
  transition:all 0.4s var(--ease-out-expo);
}
.btn-outline{color:var(--color-text-dark);border:1px solid rgba(0,0,0,0.2);background:transparent}
.btn-outline:hover{border-color:var(--color-text-dark);background:rgba(0,0,0,0.03)}
.btn-text{color:var(--color-text-medium);border:none;background:transparent;padding:14px 0}
.btn-text:hover{color:var(--color-text-dark)}
.btn-primary{padding:14px 36px;background:var(--color-accent);color:#fff;border-radius:2px}
.btn-primary:hover{background:var(--color-accent-light)}
.btn-ghost{padding:13px 34px;background:transparent;color:var(--color-text-medium);border:1px solid var(--color-border);border-radius:2px}
.btn-ghost:hover{color:var(--color-text-dark);border-color:var(--color-text-dark)}
.btn-navy{padding:14px 36px;background:rgba(255,255,255,0.06);color:var(--color-text-nd);border:1px solid var(--color-border-navy);border-radius:2px}
.btn-navy:hover{background:rgba(255,255,255,0.10)}

/* ============================================
   SEPARATOR
   ============================================ */

.separator{width:100%;height:50vh;min-height:400px;overflow:hidden;position:relative;background:url('../img/separator.jpg') center/cover no-repeat}
.separator-placeholder{display:none}

/* ============================================
   ② TREND INSIGHT
   ============================================ */

.insight{background:var(--color-bg-cream)}
.insight .container{max-width:1400px}
.insight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.insight-card{padding:44px 28px;border-top:1px solid var(--color-border)}
.insight-num{font-family:var(--font-mono);font-size:0.75rem;letter-spacing:0.12em;color:var(--color-accent);margin-bottom:var(--space-sm);display:block}
.insight-card h3{color:var(--color-text-dark);margin-bottom:var(--space-sm);font-size:1.125rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.insight-card p{font-size:1rem;line-height:1.8;color:var(--color-text-medium);margin-bottom:0;max-width:370px}
.insight-card p+p{margin-top:0.6em}

/* ============================================
   ③ ABOUT
   ============================================ */

.about{background:var(--color-bg-cream)}
.about-subhead{text-align:center;font-size:1rem;line-height:1.7;color:var(--color-text-medium);max-width:var(--max-width-narrow);margin:-2em auto var(--space-lg)}

/* Left image + right content (balanced) */
.about-body{display:grid;grid-template-columns:5fr 7fr;gap:var(--space-lg);align-items:stretch;margin-top:1lh}
.about-image{border-radius:4px;overflow:hidden;position:relative;min-height:400px}
.about-img-ph{position:absolute;inset:0;background:url('../img/about-image.png') center/contain no-repeat;font-family:var(--font-sans);font-size:0.8rem;letter-spacing:0.06em;color:var(--color-text-quaternary,#b0ad9e)}
.about-content{display:flex;flex-direction:column}
.about-block-title{font-size:1.125rem;margin-bottom:var(--space-sm)}
.about-block+.about-block{margin-top:var(--space-lg);padding-top:var(--space-md);border-top:1px solid var(--color-border)}
.small-plus{font-size:0.35em;vertical-align:baseline;font-weight:400}

/* 我们的战绩 — full-width impact */
.about-feat{margin-top:calc(var(--space-lg) - 1lh);padding-top:var(--space-md);border-top:1px solid var(--color-border)}
.about-feat-title{text-align:center;font-size:1.125rem;margin-bottom:calc(var(--space-sm) + 0.55lh)}
.about-feat-grid{display:flex;justify-content:center;gap:64px 80px;flex-wrap:wrap}
.about-feat-item{text-align:center;display:flex;flex-direction:column;gap:8px}
.about-feat-num{font-family:var(--font-serif);font-size:2.6rem;font-weight:600;color:var(--color-text-dark);line-height:1}
.feat-suffix{font-size:0.35em;font-weight:400}
.about-feat-label{font-size:0.875rem;color:var(--color-text-dark)}
.about-cap-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px 20px}
.about-cap-item{display:flex;align-items:center;gap:10px;font-size:0.9375rem;color:var(--color-text-medium)}
.about-cap-icon{width:6px;height:6px;border-radius:50%;background:var(--color-accent);flex-shrink:0;margin:0 3px}
.about-mission-list{display:flex;flex-direction:column;gap:8px}
.about-mission-item{display:flex;align-items:baseline;gap:16px;font-size:0.9375rem;color:var(--color-text-medium)}
.about-mission-num{font-family:var(--font-mono);font-weight:500;color:var(--color-accent);letter-spacing:0.04em;white-space:nowrap;min-width:90px}

/* ============================================
   ④ ADVANTAGE
   ============================================ */

.advantage{background:var(--color-bg-cream)}
.advantage-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--space-md) var(--space-xl);margin-bottom:var(--space-xl)}
.advantage-card{padding:var(--space-lg) 0;border-top:1px solid var(--color-border)}
.advantage-num{font-family:var(--font-mono);font-size:0.6875rem;letter-spacing:0.12em;color:var(--color-accent);margin-bottom:var(--space-sm);display:block}
.advantage-card h3{color:var(--color-text-dark);margin-bottom:var(--space-sm)}
.advantage-card p{font-size:1rem;line-height:1.8;color:var(--color-text-medium);margin-bottom:var(--space-xs)}

/* Cap section — 4-column full-width */
.cap-section{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-md);margin-top:-1lh}
.cap-card{text-align:center;padding:16px 8px}
.cap-card:first-child{text-align:left;padding-left:0}
.cap-card:last-child{text-align:right;padding-right:0}
.cap-card-icon{width:36px;height:36px;border-radius:50%;background:var(--color-accent-subtle);display:inline-block;margin-bottom:var(--space-sm)}
.cap-card:first-child .cap-card-icon{margin-left:0;margin-right:auto}
.cap-card:last-child .cap-card-icon{margin-right:0;margin-left:auto}
.cap-card:nth-child(2) .cap-card-icon,
.cap-card:nth-child(3) .cap-card-icon{margin:0 auto var(--space-sm)}
.cap-card-icon::after{content:'';display:block;width:100%;height:100%;background:url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 36 36"><circle cx="18" cy="18" r="5" fill="none" stroke="%23d97757" stroke-width="2"/></svg>') center/14px 14px no-repeat}
.cap-card-name{font-family:var(--font-serif);font-size:clamp(1.6rem,2.8vw,2.4rem);font-weight:600;color:var(--color-accent);display:block;line-height:1.18;margin-bottom:8px}
.cap-card-desc{font-family:var(--font-serif);font-size:1rem;font-weight:400;color:var(--color-text-dark);display:block}

/* ============================================
   ⑤ FOUNDER
   ============================================ */

.founder{background:var(--color-bg-cream)}
.founder-subhead{text-align:center;font-size:1rem;line-height:1.7;color:var(--color-text-medium);max-width:var(--max-width-narrow);margin:var(--space-sm) auto 0}

/* Left photo + right info */
.founder-body{display:grid;grid-template-columns:380px 1fr;gap:var(--space-xl);align-items:start}
.founder-photo-col{position:sticky;top:calc(var(--nav-height) + var(--space-lg))}
.founder-photo-placeholder{width:100%;aspect-ratio:5/8;border-radius:2px;background:url('../img/founder.jpg') top/cover no-repeat;min-height:400px}
.founder-photo-placeholder::after{display:none}

.founder-name{font-family:var(--font-serif);font-size:2rem;font-weight:600;color:var(--color-text-dark);margin-bottom:12px;letter-spacing:-0.01em}
.founder-quote-line{font-family:var(--font-serif);font-size:1.2rem;font-weight:500;color:var(--color-text-dark);line-height:1.6;margin-top:1lh;margin-bottom:var(--space-lg)}

/* Roles — structured hierarchy */
.founder-roles{display:flex;flex-direction:column}
.founder-role{border-top:1px solid var(--color-border);padding:var(--space-md) 0}
.founder-role h4{font-size:1.0625rem;margin-bottom:16px;color:var(--color-accent)}
.founder-role-body{display:flex;flex-direction:column;gap:6px}
.founder-role-body p{font-size:0.9375rem;line-height:1.6;color:var(--color-text-dark);margin-bottom:0}
.founder-role-detail{font-size:0.875rem!important;color:var(--color-text-medium)!important;padding-left:0;margin-bottom:14px!important}
.founder-role-body p b{color:var(--color-text-dark);font-weight:600}

/* ============================================
   ⑥ CASES
   ============================================ */

.cases{background:var(--color-bg-white)}
.case-section{margin-bottom:var(--space-xl)}
.case-section:last-child{margin-bottom:0}
.case-section-label{font-family:var(--font-sans);font-size:0.9rem;font-weight:500;color:var(--color-text-dark);text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px;margin-bottom:var(--space-lg);letter-spacing:0.04em}

/* Case row — image + text */
.case-row{display:grid;grid-template-columns:1fr 1fr;gap:var(--space-lg);align-items:stretch;margin-bottom:calc(var(--space-lg) + 2lh)}
.case-row-reverse .case-img{order:2}
.case-row-reverse .case-info{order:1}
.case-img{align-self:stretch;position:relative;border-radius:2px;overflow:hidden;background:linear-gradient(135deg,#e8e3db,#dcd6cc);filter:saturate(0.3) contrast(1.05)}
.case-img-hr{background:url('../img/case-hr.jpg') center/cover no-repeat;filter:saturate(0.3) contrast(1.05)}
.case-img-zegna{background:url('../img/case-zegna.jpg') center/cover no-repeat;filter:saturate(0.3) contrast(1.05)}
.case-img-dazzle{background:url('../img/case-dazzle.png') center/cover no-repeat;filter:saturate(0.3) contrast(1.05)}
.case-img-lb{background:url('../img/case-lb.jpg') center/cover no-repeat;filter:saturate(0.3) contrast(1.05)}
.case-img-prudential{background:url('../img/case-prudential.jpg') center/cover no-repeat;filter:saturate(0.3) contrast(1.05)}
.case-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.case-tag{font-size:0.6875rem;font-weight:500;padding:3px 12px;border-radius:100px;color:var(--color-accent);background:var(--color-accent-pill);letter-spacing:0.02em}
.case-brand{font-family:var(--font-serif);font-size:1.5rem;font-weight:600;color:var(--color-text-dark);margin-bottom:8px;letter-spacing:-0.01em}
.case-subtitle{font-size:1rem;font-weight:500;color:var(--color-text-medium);margin-bottom:8px}
.case-desc{font-size:0.9375rem;line-height:1.8;color:var(--color-text-medium)}
.case-desc b{color:var(--color-text-dark);font-weight:600}

/* ============================================
   ⑦ FRIENDS
   ============================================ */

.friends{background:var(--color-bg-white)}
.friends-label{font-family:var(--font-sans);font-size:0.9rem;font-weight:500;color:var(--color-text-dark);text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px;margin-bottom:var(--space-lg);letter-spacing:0.04em}

/* Enterprise logos — 6-column grid */
.friends-logo-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:var(--space-md);align-items:center;margin-bottom:var(--space-xl)}
.friend-logo{height:140px;background:center/contain no-repeat;filter:saturate(0.3) contrast(1.05)}
.friend-row-wrap{grid-column:1/-1;display:grid;grid-template-columns:repeat(5,1fr);gap:var(--space-md);height:140px;align-items:center;margin-left:16px;margin-right:-16px}
.friend-text-logo{font-family:var(--font-serif);font-size:1.25rem;color:var(--color-text-medium);display:flex;align-items:center;padding:0 var(--space-sm);white-space:nowrap}

/* Tag cloud — grey border, orange hover */
.friends-tag-cloud{display:flex;flex-wrap:nowrap;justify-content:center;overflow-x:auto;gap:var(--space-sm);padding-bottom:8px}
.friend-tag-item{font-family:var(--font-serif);font-size:1.125rem;font-weight:400;color:var(--color-text-dark);padding:8px 24px;border:1px solid var(--color-border);border-radius:100px;white-space:nowrap;transition:border-color 0.2s,color 0.2s}
.friend-tag-item:hover{border-color:var(--color-accent);color:var(--color-accent)}

/* ============================================
   ⑧ SERVICES
   ============================================ */

.services{background:var(--color-bg-cream)}
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-md)}
.service-card{padding:var(--space-md) 0;border-top:1px solid var(--color-border)}
.service-num{font-family:var(--font-mono);font-size:0.6875rem;letter-spacing:0.12em;color:var(--color-accent);display:block;margin-bottom:var(--space-sm)}
.service-card h3{font-size:1.125rem;margin-bottom:4px}
.service-card>p{font-size:0.9375rem;color:var(--color-text-medium)}

/* ============================================
   ⑧ CONTACT (dark section)
   ============================================ */

.contact{background:radial-gradient(ellipse at 50% 50%,#383639,#2c2b2d 60%,#242325);text-align:center}
.contact-heading{
  font-family:var(--font-serif);
  font-size:clamp(1.6rem,2.8vw,2.4rem);
  font-weight:600;line-height:1.18;color:var(--color-text-white);
  margin-bottom:var(--space-lg);letter-spacing:-0.01em;
}
.contact-desc{font-size:1rem;color:var(--color-text-light);line-height:1.8;margin-bottom:var(--space-lg)}
.contact-qr{display:flex;justify-content:center;margin-top:var(--space-md)}
.qr-placeholder{width:160px;height:160px;background:url('../img/qr.jpg') center/cover no-repeat;border-radius:4px}
.qr-placeholder span{display:none}

/* ============================================
   FOOTER
   ============================================ */

.footer{padding:var(--space-lg) 0;background:radial-gradient(ellipse at 50% 50%,#383639,#242325);text-align:center}
.footer-info{font-size:0.875rem;color:var(--color-text-muted)}
.footer-beian{margin-top:0.5rem;font-size:0.8125rem;color:var(--color-text-muted)}
.footer-beian a{color:var(--color-text-muted);text-decoration:none;border-bottom:1px solid rgba(255,255,255,0.28);padding-bottom:1px}
.footer-beian a:hover{color:#fff}

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */

.rev{opacity:0;transform:translateY(12px);transition:opacity 0.55s cubic-bezier(0.16,1,0.3,1),transform 0.55s cubic-bezier(0.16,1,0.3,1)}
.rev.in{opacity:1;transform:translateY(0)}
.rev-d1{transition-delay:0.06s}.rev-d2{transition-delay:0.12s}.rev-d3{transition-delay:0.18s}.rev-d4{transition-delay:0.24s}.rev-d5{transition-delay:0.30s}

@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important} .rev{opacity:1;transform:none}}

/* ============================================
   RESPONSIVE
   ============================================ */

@media(max-width:1023px){
  .g3{grid-template-columns:repeat(2,1fr)}
  .case-card{grid-template-columns:1fr}.case-visual{min-height:200px}
  .founder-body{grid-template-columns:1fr}.founder-photo-col{position:static;max-width:320px;margin:0 auto}
  .case-row{grid-template-columns:1fr}.case-img{order:0!important}.case-info{order:0!important}
  .insight-grid{grid-template-columns:1fr;gap:var(--space-md)}
  .advantage-grid{grid-template-columns:1fr}
  .services-grid{grid-template-columns:1fr}
  .about-body{grid-template-columns:1fr}.about-image{height:300px;position:relative}
  .section{padding:100px 0}.section-header{margin-bottom:56px}
}

@media(max-width:767px){
  .g2,.g3{grid-template-columns:1fr}
  .founder-roles{grid-template-columns:1fr}
  .container,.container-sm{padding:0 20px}
  .section{padding:72px 0}.section-header{margin-bottom:40px}
  .nav-links{display:none}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:100%;left:0;right:0;background:rgba(250,248,245,0.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:24px;gap:16px;box-shadow:0 0 0 1px var(--color-border)}
  .mobile-btn{display:flex}
  .case-info{padding:28px}.card{padding:28px}
  .hero h1{font-size:clamp(2rem,8vw,2.5rem)}
  .stats-row{gap:24px 32px}
  .cap-section{flex-wrap:wrap;justify-content:center;gap:var(--space-md)}
  .mission-steps{flex-direction:column;gap:12px}
}