/* ============================================================
   Si Wen — Vertical Drama Writer & Creative Producer
   Creative-studio portfolio style: deep navy + warm gold + paper
   ============================================================ */

:root{
  --navy-900:#081425;
  --navy-800:#0a1a2f;
  --navy-700:#0f2440;
  --navy-600:#143052;
  --gold:#c9a35e;
  --gold-bright:#dab36f;
  --gold-dark:#a37f42;
  --paper:#f7f3ea;
  --paper-dark:#efe8d9;
  --ink:#1c2b3a;
  --ink-soft:#4a5a6a;
  --white:#ffffff;
  --line:rgba(12,28,48,.12);
  --line-light:rgba(255,255,255,.14);
  --serif:"Fraunces",Georgia,"Songti SC","Noto Serif SC",serif;
  --sans:"Inter","PingFang SC","Microsoft YaHei",-apple-system,system-ui,sans-serif;
  --shadow:0 20px 50px rgba(8,20,37,.12);
  --radius:18px;
  --maxw:1180px;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  color:var(--ink);
  background:var(--paper);
  line-height:1.65;
  font-size:16.5px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul{list-style:none}
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
h1,h2,h3,h4 {font-family:var(--serif);font-weight:600;line-height:1.12;letter-spacing:-.01em}

/* Chinese font stack — keep the refined look in 中文 mode */
html[lang="zh-CN"] body,
html[lang="zh-CN"]{font-family:"Inter","PingFang SC","Microsoft YaHei",-apple-system,system-ui,sans-serif}
html[lang="zh-CN"] h1,
html[lang="zh-CN"] h2,
html[lang="zh-CN"] h3,
html[lang="zh-CN"] h4,
html[lang="zh-CN"] .stat-num,
html[lang="zh-CN"] .ws-num,
html[lang="zh-CN"] .step-num,
html[lang="zh-CN"] .portrait-initials,
html[lang="zh-CN"] .brand-name,
html[lang="zh-CN"] .card-tag,
html[lang="zh-CN"] .work-title,
html[lang="zh-CN"] .commercial-title,
html[lang="zh-CN"] .leadership-role,
html[lang="zh-CN"] .method-title,
html[lang="zh-CN"] .film-heading,
html[lang="zh-CN"] .step-title{
  font-family:"Noto Serif SC","Songti SC","STSong","SimSun",serif;
  letter-spacing:0;
}
html[lang="zh-CN"] .hero-line-gold{font-style:normal}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(247,243,234,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:42px;height:42px;border-radius:11px;
  background:linear-gradient(135deg,var(--navy-700),var(--navy-900));
  color:var(--gold-bright);
  font-family:var(--serif);font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:.5px;
}
.brand-name{font-family:var(--serif);font-weight:600;font-size:20px;color:var(--navy-900)}
.main-nav{display:flex;align-items:center;gap:30px}
.main-nav a{font-size:15px;font-weight:500;color:var(--ink-soft);transition:color .2s}
.main-nav a:hover{color:var(--gold-dark)}
.main-nav .nav-cta{
  color:var(--navy-900);font-weight:600;
  border:1.5px solid var(--navy-900);border-radius:100px;
  padding:8px 20px;transition:all .2s;
}
.main-nav .nav-cta:hover{background:var(--navy-900);color:var(--paper)}
.lang-switch{
  display:flex;align-items:center;gap:6px;cursor:pointer;
  font-size:13px;font-weight:700;color:var(--ink-soft);
  padding:7px 14px;border:1.5px solid var(--line);border-radius:100px;
  user-select:none;transition:border-color .2s,color .2s;
  margin-left:8px;
}
.lang-switch:hover{border-color:var(--gold)}
.lang-switch .lang-option{padding:1px 4px;border-radius:6px}
.lang-switch .lang-option.active{color:var(--gold-dark);background:var(--paper-dark)}
.lang-divider{opacity:.4}
.nav-toggle{display:none;background:none;border:none;font-size:24px;cursor:pointer;color:var(--navy-900)}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(201,163,94,.14), transparent 60%),
    linear-gradient(160deg,var(--navy-900),var(--navy-800) 55%,var(--navy-700));
  color:var(--paper);
  padding:92px 0 78px;
  position:relative;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px, transparent 1px);
  background-size:26px 26px;opacity:.35;
}
.hero-inner{display:flex;gap:60px;align-items:center;position:relative;z-index:1}
.hero-left{flex:1.2}
.eyebrow{
  font-size:13px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold-bright);font-weight:600;margin-bottom:26px;
}
.hero-title{font-size:clamp(38px,5.2vw,62px);margin-bottom:24px}
.hero-line{display:block}
.hero-line-gold{color:var(--gold-bright);font-style:italic;font-weight:500}
.hero-sub{font-size:clamp(17px,2vw,20px);color:rgba(247,243,234,.82);max-width:620px;margin-bottom:22px}
.hero-intro{font-size:15px;line-height:1.7;color:rgba(247,243,234,.62);max-width:600px;margin-bottom:16px}
.hero-cred{
  font-family:var(--serif);font-size:15px;letter-spacing:.02em;
  color:var(--gold-bright);margin-bottom:28px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.btn{
  display:inline-block;padding:14px 28px;border-radius:100px;
  font-weight:600;font-size:15.5px;transition:all .2s;text-align:center;
}
.btn-gold{background:var(--gold-bright);color:var(--navy-900);box-shadow:0 8px 24px rgba(201,163,94,.35)}
.btn-gold:hover{background:var(--gold);transform:translateY(-2px)}
.btn-ghost{border:1.5px solid rgba(247,243,234,.5);color:var(--paper);background:transparent}
.btn-ghost:hover{border-color:var(--gold-bright);color:var(--gold-bright)}
.hero-note{font-size:14px;color:rgba(247,243,234,.6)}
.hero-right{flex:0 0 280px}
.portrait{
  border:1px solid rgba(218,179,111,.35);
  border-radius:26px;
  padding:14px 14px 20px;text-align:center;
  box-shadow:var(--shadow);
  background:var(--navy-800);
}
.portrait-photo{
  width:100%;aspect-ratio:5/7;object-fit:cover;object-position:top center;
  border-radius:16px;margin-bottom:14px;display:block;
}
.portrait-caption{font-size:14px;color:rgba(247,243,234,.75);letter-spacing:.05em}

/* ---------- Stats ---------- */
.stats{background:var(--paper-dark);border-bottom:1px solid var(--line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:40px 0}
.stat{text-align:center}
.stat-num{font-family:var(--serif);font-size:clamp(30px,3.4vw,46px);font-weight:700;color:var(--navy-800);display:block}
.stat-label{font-size:13.5px;color:var(--ink-soft);max-width:220px;margin:8px auto 0}

/* ---------- Sections ---------- */
.section{padding:86px 0}
.section-eyebrow{
  font-size:13px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--gold-dark);font-weight:600;margin-bottom:16px;
}
.section-title{font-size:clamp(28px,3.6vw,42px);color:var(--navy-900);margin-bottom:18px;max-width:760px}

/* ---------- Cards / Services ---------- */
.cards{display:grid;gap:26px}
.services-grid{grid-template-columns:repeat(3,1fr);margin-top:34px}
.card{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius);padding:32px 28px;
  transition:transform .25s,box-shadow .25s;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.card-featured{
  border-color:var(--gold);position:relative;
  box-shadow:0 8px 30px rgba(201,163,94,.15);
}
.card-tag{
  font-family:var(--serif);font-size:20px;font-weight:600;color:var(--navy-900);
  margin-bottom:20px;padding-bottom:14px;border-bottom:2px solid var(--gold);
}
.card-list li{
  padding:8px 0 8px 22px;position:relative;color:var(--ink-soft);
  font-size:15.5px;
}
.card-list li::before{
  content:"—";position:absolute;left:0;color:var(--gold-dark);font-weight:700;
}

/* ---------- Start small ---------- */
.start-small{background:var(--navy-800);color:var(--paper)}
.start-small .section-eyebrow{color:var(--gold-bright)}
.start-small .section-title{color:var(--paper)}
.start-small-desc{color:rgba(247,243,234,.78);max-width:640px;margin-bottom:30px;font-size:17px}
.start-small-box .btn-gold{margin-top:8px}
.pills{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:34px}
.pill{
  border:1px solid rgba(218,179,111,.4);color:var(--gold-bright);
  padding:9px 18px;border-radius:100px;font-size:14px;font-weight:500;
}

/* ---------- Work ---------- */
.work-section{background:var(--paper)}
.work-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;margin-bottom:26px;
  display:grid;grid-template-columns:minmax(0,230px) 1fr;
  transition:border-color .25s,box-shadow .25s;
}
.work-card:hover{border-color:var(--gold);box-shadow:var(--shadow)}
.work-visual{
  position:relative;min-height:230px;display:flex;align-items:center;justify-content:center;
  padding:0;overflow:hidden;background:var(--navy-800);
}
.work-visual img.work-visual-img{
  width:100%;height:100%;object-fit:cover;object-position:center;display:block;
}
.work-visual-text{
  font-family:var(--serif);font-weight:700;font-size:clamp(20px,2vw,28px);
  color:rgba(247,243,234,.92);letter-spacing:.01em;text-align:center;line-height:1.15;
  padding:20px;
}
.work-body{padding:30px 32px}
.work-meta{display:flex;gap:14px;align-items:center;flex-wrap:wrap;margin-bottom:12px}
.work-genre{
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;
  color:var(--gold-dark);background:var(--paper-dark);padding:5px 12px;border-radius:100px;
}
.work-role{font-size:13.5px;color:var(--ink-soft)}
.work-title{font-size:clamp(24px,2.6vw,32px);color:var(--navy-900);margin-bottom:20px}
.work-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:20px}
.work-stat{background:var(--paper);border-radius:14px;padding:16px;text-align:center}
.ws-num{font-family:var(--serif);font-size:24px;font-weight:700;color:var(--navy-800);display:block}
.ws-label{font-size:12.5px;color:var(--ink-soft);line-height:1.3}
.work-contrib{
  display:flex;flex-direction:column;gap:9px;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:16px 0;margin-bottom:16px;
}
.contrib-block{display:flex;gap:14px;align-items:flex-start;font-size:15px}
.contrib-label{
  flex:0 0 94px;font-size:11.5px;letter-spacing:.08em;text-transform:uppercase;
  font-weight:700;color:var(--gold-dark);padding-top:3px;
}
.contrib-text{color:var(--ink-soft);flex:1}
.work-desc{color:var(--ink-soft);font-size:15.5px;max-width:760px}
@media(max-width:760px){
  .work-card{grid-template-columns:1fr}
  .work-visual{min-height:120px}
}

/* ---------- Commercial ---------- */
.commercial{background:var(--paper-dark)}
.commercial-grid{grid-template-columns:repeat(3,1fr);margin-top:34px}
@media(max-width:1020px){.commercial-grid{grid-template-columns:repeat(2,1fr)}}
.commercial-tag{font-size:12px;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--gold-dark);margin-bottom:10px}
.commercial-title{font-family:var(--serif);font-size:22px;color:var(--navy-900);margin-bottom:18px}

/* ---------- Leadership ---------- */
.leadership{background:var(--navy-900);color:var(--paper)}
.leadership .section-eyebrow{color:var(--gold-bright)}
.leadership .section-title{color:var(--paper)}
.leadership-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:34px}
.leadership-card{
  background:var(--navy-800);border:1px solid var(--line-light);
  border-radius:var(--radius);padding:34px 30px;
}
.leadership-featured{border-color:rgba(218,179,111,.45)}
.leadership-role{font-family:var(--serif);font-size:21px;color:var(--gold-bright);margin-bottom:8px}
.leadership-org{font-size:14px;color:rgba(247,243,234,.6);margin-bottom:18px;letter-spacing:.03em}
.leadership-desc{color:rgba(247,243,234,.78);font-size:15.5px;margin-bottom:20px}
.leadership-card .card-list li{color:rgba(247,243,234,.75)}
.film-credibility{margin-top:44px;border-top:1px solid var(--line-light);padding-top:34px}
.film-heading{font-family:var(--serif);font-size:19px;color:var(--paper);margin-bottom:18px}
.film-list{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:16px}
.film-list span{border:1px solid var(--line-light);padding:8px 16px;border-radius:100px;font-size:14px;color:rgba(247,243,234,.8)}
.film-note{font-size:14px;color:rgba(247,243,234,.55)}

/* ---------- Method ---------- */
.method{background:var(--paper)}
.method-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;margin-top:34px}
.method-item{border-top:3px solid var(--gold);padding-top:20px}
.method-icon{color:var(--gold-dark);font-size:20px;margin-bottom:12px}
.method-title{font-family:var(--serif);font-size:19px;color:var(--navy-900);margin-bottom:10px}
.method-text{color:var(--ink-soft);font-size:15px}
.method-foot{
  margin-top:40px;padding:18px 24px;border-radius:14px;
  background:var(--navy-800);color:var(--gold-bright);
  font-family:var(--serif);font-style:italic;font-size:17px;
}

/* ---------- Process ---------- */
.process{background:var(--paper-dark)}
.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:34px}
.process-step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);padding:28px 24px}
.step-num{font-family:var(--serif);font-size:40px;font-weight:700;color:var(--gold-dark);opacity:.85;line-height:1;margin-bottom:16px}
.step-title{font-family:var(--serif);font-size:18px;color:var(--navy-900);margin-bottom:10px}
.step-text{font-size:14.5px;color:var(--ink-soft)}

/* ---------- Contact / Footer ---------- */
.contact{background:
  radial-gradient(1000px 480px at 20% -10%, rgba(201,163,94,.16), transparent 60%),
  linear-gradient(160deg,var(--navy-900),var(--navy-700));}
.contact-box{max-width:720px;margin:0 auto;text-align:center;color:var(--paper)}
.contact .section-eyebrow{color:var(--gold-bright)}
.contact .section-title{color:var(--paper);margin:0 auto 20px}
.contact-desc{color:rgba(247,243,234,.78);font-size:17px;margin-bottom:36px}
.contact-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:26px}
.contact-note{font-size:14px;color:rgba(247,243,234,.6)}

/* Email display + copy */
.contact-mail{margin:28px auto 0;max-width:440px}
.contact-mail-label{display:block;font-size:14px;color:rgba(247,243,234,.55);margin-bottom:12px}
.mail-address{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.06);border:1px solid rgba(218,179,111,.25);
  border-radius:100px;padding:12px 24px;cursor:pointer;
  color:var(--gold-bright);font-family:var(--sans);font-size:15px;font-weight:600;
  transition:background .2s,border-color .2s;
}
.mail-address:hover{background:rgba(218,179,111,.1);border-color:var(--gold-bright)}
.copy-hint{font-size:12px;font-weight:400;opacity:.6}
.mail-address.copied{border-color:#7ee681}
.mail-address.copied .copy-hint{color:#7ee681;opacity:1}

/* Copy toast */
.copy-toast{
  position:fixed;bottom:36px;left:50%;
  transform:translateX(-50%) translateY(80px);
  background:var(--navy-900);color:var(--gold-bright);
  border:1px solid var(--gold);border-radius:100px;
  padding:14px 28px;font-size:15px;font-weight:600;
  opacity:0;transition:opacity .35s,transform .35s;
  z-index:200;pointer-events:none;white-space:nowrap;
  box-shadow:0 12px 40px rgba(0,0,0,.3);
}
.copy-toast.show{opacity:1;transform:translateX(-50%) translateY(0)}

.site-footer{background:var(--navy-900);border-top:1px solid var(--line-light);color:rgba(247,243,234,.7)}
.footer-disclaimer{
  padding:18px 28px 0;text-align:center;
}
.disclaimer-text{font-size:12.5px;color:rgba(247,243,234,.5);font-style:italic}
.footer-inner{display:flex;align-items:center;justify-content:space-between;padding:34px 28px;flex-wrap:wrap;gap:16px}
.site-footer .brand-name{color:var(--paper)}
.footer-line{font-size:14px;max-width:520px}
.footer-top{font-size:14px;color:var(--gold-bright);font-weight:500}

/* ---------- Responsive ---------- */
@media (max-width:1020px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:30px}
  .work-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .hero-inner{flex-direction:column;text-align:center}
  .hero-left{order:2}
  .hero-right{order:1;flex-basis:auto;width:200px}
  .hero-sub,.hero-actions,.hero-note{margin-left:auto;margin-right:auto}
  .services-grid,.commercial-grid,.leadership-grid{grid-template-columns:1fr}
  .method-grid,.process-steps{grid-template-columns:1fr 1fr}
  .main-nav{
    position:fixed;top:72px;left:0;right:0;background:var(--paper);
    flex-direction:column;align-items:flex-start;padding:20px 28px 28px;
    gap:18px;border-bottom:1px solid var(--line);
    transform:translateY(-130%);transition:transform .3s;z-index:90;
  }
  .main-nav.open{transform:translateY(0)}
  .main-nav a{font-size:17px}
  .nav-toggle{display:block;margin-left:8px}
  .lang-switch{margin-left:auto}
  .header-inner .nav-toggle{order:3}
  .header-inner .lang-switch{order:2}
}
@media (max-width:540px){
  .section{padding:64px 0}
  .method-grid,.process-steps{grid-template-columns:1fr}
  .work-grid,.stats-grid{grid-template-columns:1fr}
}