/* ==========================================================
   林知遥 · 个人作品网站  (site.css)
   设计系统: 纸白 #FAF8F4 / 墨黑 #1B1A17 / 陶土 #B5674A
   衬线标题 Noto Serif SC · 正文 Noto Sans SC · 数字 Geist
   ========================================================== */
:root{
  --paper:#FAF8F4; --paper-2:#F4F0EA; --ink:#1B1A17;
  --ink-2:#4A463F; --gray:#6E6A62; --gray-2:#9A958C;
  --line:#E9E5DD; --line-2:#E2DCD2; --hairline:#2E2B25;
  --terra:#B5674A; --terra-soft:#F3E7DF; --terra-bg:#FDF0E8;
  --card:#FFFFFF; --ink-soft:#26241F; --dark-mute:#3A382F;
  --foot-mute:#A8A39A;
  --serif:"Noto Serif SC","Songti SC","SimSun",serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --num:"Geist","Noto Sans SC",sans-serif;
  --r-lg:16px; --r-md:12px; --r-pill:999px;
  --shadow-soft:0 6px 18px rgba(29,26,23,.06);
  --shadow-float:0 12px 28px rgba(29,26,23,.16);
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--paper);color:var(--ink);font-family:var(--sans);font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
.eyebrow{font-size:13px;font-weight:600;letter-spacing:1.5px;color:var(--terra);text-transform:none}
.serif{font-family:var(--serif)}
.num{font-family:var(--num)}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:50;background:rgba(250,248,244,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--ink);color:var(--paper);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:700;font-size:17px}
.brand-name{font-weight:600;font-size:18px}
.nav-links{display:flex;gap:34px;align-items:center}
.nav-links a{font-size:15px;color:var(--gray);font-weight:500;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--ink)}
.btn-terra{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--terra);color:var(--paper);border:none;cursor:pointer;padding:11px 26px;border-radius:var(--r-pill);font-family:var(--sans);font-size:15px;font-weight:600;transition:background .2s,transform .15s}
.btn-terra:hover{background:#9e5539;transform:translateY(-1px)}
.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--terra-soft);color:var(--terra);border:none;cursor:pointer;padding:11px 26px;border-radius:var(--r-pill);font-family:var(--sans);font-size:15px;font-weight:600;transition:background .2s}
.btn-ghost:hover{background:#ecdccf}
.nav-toggle{display:none;background:none;border:none;font-size:22px;color:var(--ink);cursor:pointer}

/* ---------- Hero ---------- */
.hero{padding:96px 0 104px;overflow:hidden}
.hero-inner{display:grid;grid-template-columns:minmax(0,1fr) 460px;gap:64px;align-items:center}
.hero-copy{display:flex;flex-direction:column;gap:28px}
.hero h1{font-family:var(--serif);font-weight:700;font-size:52px;line-height:1.18;letter-spacing:.5px}
.hero-sub{font-size:17px;color:var(--gray);max-width:560px;line-height:1.75}
.hero-cta{display:flex;gap:16px;flex-wrap:wrap}
.hero-stats{display:flex;gap:48px;flex-wrap:wrap}
.stat b{display:block;font-family:var(--num);font-size:30px;font-weight:700;line-height:1.2}
.stat span{font-size:13px;color:var(--gray)}
.hero-media{position:relative}
.hero-media .frame{width:100%;aspect-ratio:460/540;border-radius:var(--r-lg);overflow:hidden;background:var(--line)}
.hero-media .frame img{width:100%;height:100%;object-fit:cover}
.avail-card{position:absolute;left:-28px;bottom:36px;background:#fff;border-radius:14px;box-shadow:var(--shadow-float);padding:16px 18px;min-width:250px}
.avail-card b{display:block;font-size:13px;color:var(--terra);font-weight:600;margin-bottom:4px}
.avail-card span{font-size:12px;color:var(--gray)}

/* ---------- 通用分区 ---------- */
.section{padding:96px 0}
.section.alt{background:var(--paper-2)}
.section-head{max-width:680px;margin-bottom:56px}
.section-head h2{font-family:var(--serif);font-size:38px;font-weight:700;line-height:1.25;margin:12px 0 14px}
.section-head p{color:var(--gray);font-size:16px}

/* ---------- 作品集 ---------- */
.works-grid{display:flex;flex-direction:column;gap:24px}
.wrow{display:grid;grid-template-columns:1.6fr 1fr;gap:24px;align-items:start}
.wrow.flip{grid-template-columns:1fr 1fr}
.work-item .cover{border-radius:var(--r-md);overflow:hidden;aspect-ratio:16/9;background:var(--line)}
.work-item.big .cover{aspect-ratio:720/392}
.work-item.mid .cover{aspect-ratio:588/248}
.work-item.tall .cover{aspect-ratio:456/392}
.work-item .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.work-item:hover .cover img{transform:scale(1.03)}
.work-cap{padding:14px 2px 0}
.work-cap h3{font-family:var(--serif);font-size:19px;font-weight:600}
.work-cap .meta{margin-top:4px;font-size:13px;color:var(--gray)}
.works-more{display:inline-flex;align-items:center;gap:8px;color:var(--terra);font-size:16px;font-weight:600;margin-top:48px;border-bottom:1px solid transparent;transition:border .2s}
.works-more:hover{border-color:var(--terra)}

/* ---------- 关于我 ---------- */
.about-inner{display:grid;grid-template-columns:460px 1fr;gap:64px;align-items:center}
.about-img{border-radius:var(--r-lg);overflow:hidden;aspect-ratio:460/520;background:var(--line)}
.about-img img{width:100%;height:100%;object-fit:cover}
.about-bio{color:var(--ink-2);font-size:17px;line-height:1.85;margin-bottom:32px}
.timeline{border-top:1px solid var(--line-2)}
.tl-row{display:flex;align-items:center;gap:24px;padding:20px 0;border-bottom:1px solid var(--line-2)}
.tl-row .period{width:130px;flex:none;font-family:var(--num);font-weight:600;font-size:15px}
.tl-row .role{flex:1;font-weight:600;font-size:16px}
.tl-row .org{text-align:right;font-size:14px;color:var(--gray)}

/* ---------- 技能服务 ---------- */
.skills-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.skill-card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:28px;box-shadow:var(--shadow-soft);transition:transform .25s,box-shadow .25s}
.skill-card:hover{transform:translateY(-3px);box-shadow:0 12px 26px rgba(29,26,23,.10)}
.skill-card .no{font-family:var(--num);font-size:14px;font-weight:600;color:var(--terra)}
.skill-card h3{font-family:var(--serif);font-size:22px;font-weight:600;margin:10px 0}
.skill-card p{color:var(--gray);font-size:15px;line-height:1.6}

/* ---------- 客户评价 ---------- */
.testi-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.testi-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--shadow-soft)}
.testi-card blockquote{font-family:var(--serif);font-size:20px;font-weight:500;line-height:1.65;color:var(--ink);margin-bottom:24px}
.t-author{display:flex;align-items:center;gap:12px}
.t-avatar{width:48px;height:48px;border-radius:50%;background:var(--terra-soft);color:var(--ink);display:flex;align-items:center;justify-content:center;font-family:var(--serif);font-weight:700;font-size:18px;flex:none}
.t-author b{display:block;font-size:15px;font-weight:600}
.t-author span{font-size:13px;color:var(--gray)}

/* ---------- 联系 (深色) ---------- */
.section.contact{background:var(--ink);color:var(--paper)}
.contact-inner{display:grid;grid-template-columns:1.2fr 420px;gap:64px;align-items:center}
.contact h2{font-family:var(--serif);font-size:46px;line-height:1.15;margin:20px 0}
.contact .lead{color:var(--foot-mute);font-size:16px;line-height:1.7;max-width:560px}
.contact-card{background:var(--ink-soft);border-radius:var(--r-lg);padding:32px;display:flex;flex-direction:column;gap:18px}
.contact-card .avail{color:var(--terra);font-weight:600;font-size:13px}
.contact-card .f-label{font-size:12px;color:var(--foot-mute)}
.contact-card .f-value{font-size:18px;font-weight:600;word-break:break-all}
.contact-card hr{border:none;border-top:1px solid var(--dark-mute)}
.contact-card .socials{font-size:14px;color:var(--foot-mute)}
form.lead-form{display:flex;flex-direction:column;gap:14px;margin-top:8px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:12px;color:var(--foot-mute)}
.field input,.field select,.field textarea{background:#191815;border:1px solid #3A382F;border-radius:10px;color:var(--paper);padding:11px 14px;font-family:var(--sans);font-size:14px;outline:none;transition:border .2s}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--terra)}
.field textarea{resize:vertical;min-height:96px}
select option{color:var(--ink)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:var(--foot-mute);border-top:1px solid var(--hairline)}
.footer-top{display:flex;justify-content:space-between;align-items:flex-start;gap:40px;padding:56px 0 8px;flex-wrap:wrap}
.footer-brand b{display:block;font-family:var(--serif);font-size:20px;color:var(--paper);margin-bottom:8px}
.footer-brand span{font-size:13px}
.footer-nav{display:flex;gap:32px;flex-wrap:wrap}
.footer-nav a{font-size:14px}
.footer-nav a:hover{color:var(--paper)}
.footer-mark{font-family:var(--serif);font-size:150px;line-height:1;text-align:center;color:var(--hairline);letter-spacing:8px;user-select:none;padding:32px 0 8px;white-space:nowrap;overflow:hidden}
.footer-bottom{display:flex;justify-content:space-between;gap:24px;padding:20px 0 40px;font-size:13px;flex-wrap:wrap}
.footer-bottom .line{flex:1 1 100%;height:1px;background:var(--hairline);margin-bottom:16px}

/* ---------- 滚动淡入 ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 消息提示 ---------- */
.msg{max-width:560px;padding:12px 16px;border-radius:10px;margin-bottom:0;font-size:14px}
.msg.ok{background:#EAF3EC;color:#2e6b3c;border:1px solid #Cfe3d5}
.msg.err{background:#F9E9E4;color:#a4462a;border:1px solid #F0d4c8}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:48px}
  .hero-media{max-width:460px}
  .avail-card{left:auto;right:-8px}
  .about-inner{grid-template-columns:1fr;gap:48px}
  .contact-inner{grid-template-columns:1fr;gap:48px}
}
@media (max-width:860px){
  .nav-links{display:none;position:absolute;top:72px;left:0;right:0;background:var(--paper);flex-direction:column;gap:0;border-bottom:1px solid var(--line);padding:8px 32px 16px}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 0;width:100%;border-bottom:1px solid var(--line)}
  .nav-links a:last-child{border:none}
  .nav-cta{display:none}
  .nav-toggle{display:block}
  .hero{padding:64px 0}
  .wrow,.wrow.flip{grid-template-columns:1fr}
  .skills-grid,.testi-grid{grid-template-columns:1fr}
  .field-row{grid-template-columns:1fr}
  .section-head h2{font-size:32px}
  .footer-mark{font-size:96px}
}