/* ============================================================
   程志文作品集 — 纯白极简未来感（参考 LGPSM 风格）
   设计语言：纯白底 / 黑墨字 / 灰阶装饰 / 无紫无奶油无发光
   ============================================================ */

/* ===== 全局变量 ===== */
:root {
  /* 流体尺寸系统（与参考稿一致） */
  --pad-x: clamp(1.25rem, 4.5vw, 5rem);
  --pad-y: clamp(1rem, 3vh, 4rem);
  --header-pt: clamp(1.25rem, 2.5vh, 2.5rem);
  --gap-nav: clamp(1rem, 2.2vw, 2.25rem);
  --logo: clamp(1.35rem, 1.2vw + 0.9rem, 2.1rem);
  --logo-deg: clamp(0.65rem, 0.4vw + 0.45rem, 0.9rem);
  --nav: clamp(0.65rem, 0.35vw + 0.5rem, 0.875rem);
  --headline: clamp(2.15rem, 4.5vw + 0.75rem, 5.25rem);
  --body: clamp(0.7rem, 0.35vw + 0.55rem, 0.9rem);
  --micro: clamp(0.55rem, 0.25vw + 0.45rem, 0.7rem);
  --btn-px: clamp(1.15rem, 1.4vw, 1.75rem);
  --btn-py: clamp(0.6rem, 0.9vh, 0.85rem);
  --btn-gap: clamp(0.75rem, 1vw, 1.1rem);
  --feature-pad: clamp(1rem, 1.5vw, 1.75rem);
  --feature-min: clamp(13rem, 18vw, 20rem);
  --globe: clamp(2.25rem, 2.5vw + 1rem, 3.25rem);
  --checker-w: clamp(2.75rem, 4.5vw, 6.5rem);
  --checker-h: clamp(1.35rem, 2.2vw, 3rem);
  --corner: clamp(0.65rem, 0.4vw + 0.4rem, 0.95rem);
  --icon: clamp(1rem, 0.6vw + 0.7rem, 1.35rem);
  --drawer-pad: clamp(1.25rem, 2.5vw, 2.25rem);
  --drawer-max: clamp(18rem, 28vw, 28rem);
  --section-gap: clamp(0.75rem, 1.5vh, 1.5rem);
  --main-py: clamp(1.25rem, 4vh, 4rem);

  /* 中性色（纯白极简） */
  --bg: #ffffff;
  --bg-2: #f1f3f6;
  --surface: #ffffff;
  --ink: #0a0a0a;
  --ink-2: #52525b;
  --ink-3: #9ca3af;
  --border: #e5e7eb;
  --border-2: #f0f2f7;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #52525b;
  --grid: #64748b;

  /* 灰度渐变（作品/客片封面占位用，保持单色调） */
  --grad-1: linear-gradient(135deg, #e5e7eb 0%, #9ca3af 100%);
  --grad-2: linear-gradient(135deg, #d1d5db 0%, #6b7280 100%);
  --grad-3: linear-gradient(135deg, #f3f4f6 0%, #cbd5e1 100%);
  --grad-4: linear-gradient(135deg, #9ca3af 0%, #4b5563 100%);
  --grad-primary: linear-gradient(135deg, #1a1a1a 0%, #000000 100%);

  /* 阴影（去色） */
  --shadow-sm: 0 1px 3px rgba(16,24,40,.06), 0 1px 2px rgba(16,24,40,.04);
  --shadow-md: 0 10px 30px rgba(16,24,40,.08), 0 2px 8px rgba(16,24,40,.04);
  --shadow-lg: 0 24px 60px rgba(16,24,40,.14), 0 8px 20px rgba(16,24,40,.06);

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  --font: 'Plus Jakarta Sans', 'Noto Sans SC', system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-orbitron: 'Orbitron', 'Noto Sans SC', sans-serif;
  --font-jakarta: 'Plus Jakarta Sans', 'Noto Sans SC', sans-serif;
  --maxw: 1200px;
}

/* ===== Reset ===== */
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:var(--font);background:var(--bg);color:var(--ink-2);line-height:1.7;overflow-x:hidden;-webkit-font-smoothing:antialiased;}
::selection{background:#000;color:#fff;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
img{max-width:100%;display:block;}
button{font-family:inherit;cursor:pointer;border:none;background:none;}
input,textarea,select{font-family:inherit;}

/* 字体工具类 */
.font-orbitron{font-family:var(--font-orbitron);}
.font-jakarta{font-family:var(--font-jakarta);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;border-radius:var(--radius-sm);
  transition:all .25s cubic-bezier(.4,0,.2,1);
  white-space:nowrap;user-select:none;
}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-lg{padding:15px 34px;font-size:16px;}
.btn-block{width:100%;}
.btn-primary{
  background:var(--grad-primary);color:#fff;
  box-shadow:0 8px 20px rgba(0,0,0,.18);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.24);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{
  background:#fff;color:var(--ink);
  border:1.5px solid var(--border);
  box-shadow:var(--shadow-sm);
}
.btn-outline:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-ghost{background:transparent;color:var(--ink-2);}
.btn-ghost:hover{background:var(--bg-2);color:var(--ink);}
.btn-teal{background:var(--ink);color:#fff;box-shadow:0 8px 20px rgba(0,0,0,.18);}
.btn-teal:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.24);}

/* ===== 导航栏 ===== */
/* 顶部居中悬浮胶囊 */
.navbar{
  position:fixed;top:var(--header-pt);left:0;right:0;z-index:1000;
  display:flex;justify-content:center;
  padding:0 var(--pad-x);
  pointer-events:none;
  transition:top .3s;
}
.navbar > .nav-inner{
  pointer-events:auto;
  width:min(96%, var(--maxw));
  margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  padding:10px 20px;
  background:rgba(255,255,255,.7);
  backdrop-filter:saturate(180%) blur(18px);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  border:1px solid rgba(255,255,255,.65);
  border-radius:999px;
  box-shadow:var(--shadow-md);
  transition:all .3s;
}
.navbar.scrolled > .nav-inner{background:rgba(255,255,255,.92);box-shadow:var(--shadow-lg);}
.nav-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:var(--logo);color:var(--ink);letter-spacing:.04em;}

/* 顶部「程志文」文字（纯黑，无渐变） */
.logo-cut{
  display:inline-block;
  font-weight:800;
  font-size:var(--logo);
  letter-spacing:.04em;
  color:var(--ink);
  transition:opacity .3s ease;
}
.logo-cut:hover{opacity:.6;}
.nav-links{display:flex;gap:var(--gap-nav);}
.nav-links a{
  font-size:var(--nav);color:var(--ink-2);transition:color .2s;position:relative;font-weight:600;
  text-transform:uppercase;letter-spacing:.2em;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a::after{
  content:'';position:absolute;bottom:-6px;left:0;width:0;height:1.5px;
  background:var(--ink);transition:width .25s;
}
.nav-links a:hover::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:8px;}
.nav-toggle span{width:22px;height:2px;background:var(--ink);border-radius:2px;transition:.3s;}
.nav-toggle.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px);}
.nav-toggle.active span:nth-child(2){opacity:0;}
.nav-toggle.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px);}

/* ===== Hero ===== */
.hero{
  position:relative;min-height:100vh;display:flex;flex-direction:column;justify-content:center;
  background:#fff;overflow:hidden;
}
/* 桌面：聚光灯双图揭示背景（fixed 全屏，非交互） */
.reveal-bg{position:fixed;inset:0;z-index:0;pointer-events:none;overflow:hidden;display:none;}
@media(min-width:1024px){.reveal-bg{display:block;}}
.reveal-base{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat;}
.reveal-layer{position:absolute;inset:0;background-size:cover;background-position:center;background-repeat:no-repeat;-webkit-mask-size:100% 100%;mask-size:100% 100%;}
.reveal-grid{position:absolute;inset:-28px;background-image:linear-gradient(var(--grid) 0.6px,transparent 0.6px),linear-gradient(90deg,var(--grid) 0.6px,transparent 0.6px);background-size:48px 48px;opacity:.10;will-change:transform;}
/* 移动：静态带边框图（极淡，仅作纹理） */
.hero-mobile-img{display:none;}
@media(max-width:1023px){
  .hero-mobile-img{display:block;position:absolute;inset:0;background-size:cover;background-position:center;opacity:.16;}
}

.hero-content{
  position:relative;z-index:2;width:100%;max-width:var(--maxw);margin:0 auto;
  padding:150px var(--pad-x) 40px;
  display:flex;justify-content:space-between;align-items:center;gap:40px;flex-wrap:wrap;
}
.hero-left{position:relative;flex:1 1 420px;max-width:62%;padding:6px 0;}
.hero-feature{
  position:relative;align-self:flex-end;
  min-width:var(--feature-min);padding:var(--feature-pad);
  border:1px solid var(--border);background:transparent;
}

/* 边角括号 */
.corner-bracket{position:absolute;width:var(--corner);height:var(--corner);border:1.5px solid var(--ink);}
.corner-tl{top:-6px;left:-6px;border-right:0;border-bottom:0;}
.corner-tr{top:-6px;right:-6px;border-left:0;border-bottom:0;}
.corner-bl{bottom:-6px;left:-6px;border-right:0;border-top:0;}
.corner-br{bottom:-6px;right:-6px;border-left:0;border-top:0;}

.hero-eyebrow{
  font-family:var(--font-orbitron);font-size:var(--micro);font-weight:600;
  letter-spacing:.3em;text-transform:uppercase;color:var(--ink-3);margin-bottom:22px;
}
.hero-title{
  font-family:var(--font-jakarta);font-weight:800;
  font-size:var(--headline);line-height:1.06;letter-spacing:.01em;
  color:var(--ink);margin-bottom:18px;
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
}
.hero-title #heroTitleText{display:inline;}
.checker{width:var(--checker-w);height:var(--checker-h);display:inline-block;transform:translateY(2px);flex:none;}
.hero-subtitle{font-size:var(--body);color:var(--ink-2);margin-bottom:30px;max-width:540px;line-height:1.7;}

/* 未来感 CTA */
.btn-future{
  display:inline-flex;align-items:center;gap:10px;
  border:1px solid var(--gray-400);border-radius:8px;
  padding:var(--btn-py) var(--btn-px);font-size:var(--body);
  text-transform:uppercase;letter-spacing:.18em;color:var(--ink);background:#fff;
  transition:.25s;font-weight:600;font-family:var(--font-jakarta);
}
.btn-future:hover{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-future svg{transition:transform .25s;}
.btn-future:hover svg{transform:translate(3px,-3px);}

/* 线框地球 + 标语 */
.wire-globe{width:var(--globe);height:var(--globe);color:var(--ink);margin-bottom:18px;}
.feature-tag{
  font-family:var(--font-jakarta);font-weight:600;text-transform:uppercase;
  letter-spacing:.18em;font-size:var(--body);color:var(--ink);line-height:1.7;
}

/* 极简数据统计 */
.hero-stats{
  position:relative;z-index:2;display:flex;justify-content:center;flex-wrap:wrap;
  max-width:var(--maxw);margin:0 auto;width:100%;
  padding:0 var(--pad-x) 70px;border-top:1px solid var(--border);
}
.hero-stat{flex:1 1 160px;max-width:240px;padding:26px 18px;text-align:left;border-right:1px solid var(--border);}
.hero-stat:last-child{border-right:0;}
.hero-stat-value{font-family:var(--font-jakarta);font-size:40px;font-weight:800;color:var(--ink);line-height:1;letter-spacing:-1px;}
.hero-stat-label{font-size:13px;margin-top:8px;color:var(--ink-3);font-weight:500;}

.hero-actions{display:flex;gap:var(--btn-gap);flex-wrap:wrap;margin-top:4px;}
.hero-scroll-hint{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);display:flex;flex-direction:column;align-items:center;gap:6px;font-size:13px;color:var(--ink-3);z-index:2;}
.hero-scroll-hint span:first-child{background:rgba(255,255,255,.8);padding:4px 12px;border-radius:999px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);border:1px solid var(--border);}
.scroll-arrow{animation:bounce 2s infinite;color:var(--ink);}
@keyframes bounce{0%,100%{transform:translateY(0);}50%{transform:translateY(8px);}}

/* ===== 通用 Section ===== */
.section{position:relative;z-index:10;padding:110px var(--pad-x);max-width:var(--maxw);margin:0 auto;}
.section-header{text-align:center;margin-bottom:60px;position:relative;z-index:2;}
.section-tag{
  display:inline-block;padding:6px 18px;border-radius:999px;
  background:var(--bg-2);color:var(--ink-2);
  font-size:13px;font-weight:600;margin-bottom:16px;letter-spacing:.2em;text-transform:uppercase;
}
.section-title{font-size:clamp(32px,4.6vw,52px);font-weight:800;margin-bottom:14px;color:var(--ink);letter-spacing:-.01em;}
.section-desc{font-size:17px;color:var(--ink-2);max-width:600px;margin:0 auto;}

.title-deco{display:none;}

/* ===== 作品轮播（白卡） ===== */
.section-works{
  background:var(--surface);
  border-radius:var(--radius-xl);
  margin:48px auto;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  padding:64px 32px;
}
.works-slider{
  position:relative;z-index:2;display:flex;align-items:center;gap:24px;
  max-width:920px;margin:0 auto;
}
.works-stage{
  flex:1;position:relative;min-height:520px;
  display:flex;align-items:center;justify-content:center;
}
.work-card{
  width:100%;max-width:640px;background:var(--surface);
  border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-md);cursor:pointer;
  transition:all .5s cubic-bezier(.4,0,.2,1);
  position:absolute;left:50%;top:50%;
  border:1px solid var(--border);
}
.work-card{transform:translate(-50%,-50%) scale(0.9);opacity:0;pointer-events:none;}
.work-card.is-active{transform:translate(-50%,-50%) scale(1);opacity:1;pointer-events:auto;z-index:3;}
.work-card.is-prev{transform:translate(-112%,-50%) scale(0.84);opacity:0;pointer-events:none;}
.work-card.is-next{transform:translate(12%,-50%) scale(0.84);opacity:0;pointer-events:none;}
.work-card.is-active:hover{transform:translate(-50%,-50%) scale(1.02);box-shadow:var(--shadow-lg);}
.work-card-cover{height:430px;background-size:cover;background-position:center;position:relative;overflow:hidden;}
.work-card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 35%,rgba(10,10,10,.82) 100%);
}
.work-card-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:30px;color:#fff;z-index:2;}
.work-card-title{font-size:30px;font-weight:800;margin-bottom:8px;letter-spacing:.02em;}
.work-card-desc{font-size:15px;opacity:.95;line-height:1.6;}
.work-card-tag{position:absolute;top:20px;left:20px;padding:6px 16px;border-radius:999px;font-size:13px;font-weight:700;color:#fff;background:rgba(10,10,10,.55);backdrop-filter:blur(6px);letter-spacing:.05em;}
.work-card-cta{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  padding:9px 18px;background:rgba(255,255,255,.14);border:1.5px solid rgba(255,255,255,.7);
  border-radius:999px;color:#fff;font-size:14px;font-weight:600;
  backdrop-filter:blur(8px);transition:.25s;align-self:flex-start;
}
.work-card-cta:hover{background:#fff;color:#0a0a0a;transform:translateX(4px);}

.works-nav{
  flex:0 0 56px;width:56px;height:56px;border-radius:50%;
  background:var(--surface);color:var(--ink);border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:.25s;z-index:5;box-shadow:var(--shadow-sm);
}
.works-nav:hover{background:var(--ink);color:#fff;border-color:var(--ink);transform:scale(1.08);}
.works-nav:disabled{opacity:.3;cursor:not-allowed;pointer-events:none;}

.works-counter{
  display:flex;justify-content:center;align-items:center;gap:6px;margin-top:32px;
  font-size:15px;color:var(--ink-2);position:relative;z-index:2;
}
.works-counter #worksCurrent{font-size:24px;font-weight:800;color:var(--ink);}
.works-counter #worksTotal{font-size:18px;color:var(--ink-3);}

/* ===== 关于我 ===== */
.section-about{
  background:var(--surface);
  border-radius:var(--radius-xl);
  margin:48px auto;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
}
.about-container{display:flex;gap:64px;align-items:center;padding:72px 56px;position:relative;z-index:2;}
.about-photo-wrap{flex:0 0 280px;position:relative;display:flex;justify-content:center;}

/* 干净相框 */
.about-photo-frame{
  position:relative;width:260px;height:320px;border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-lg);border:6px solid #fff;
}
.about-photo{
  position:absolute;inset:0;
  background:var(--grad-2);
  display:flex;align-items:center;justify-content:center;
  background-size:cover;background-position:center;
}
.about-photo-placeholder{font-size:64px;opacity:.85;}

.about-info{flex:1;}
.about-info .section-tag{margin-bottom:14px;}
.about-name{text-align:left;margin-bottom:8px;font-size:clamp(30px,4vw,44px);font-weight:800;color:var(--ink);letter-spacing:-.01em;}
.about-text{font-size:17px;color:var(--ink-2);line-height:1.95;margin-bottom:28px;}

/* 统计（干净卡片） */
.about-stats{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px;}
.stat-item{flex:1;min-width:96px;text-align:center;border-radius:var(--radius-md);padding:18px 12px;background:var(--bg-2);border:1px solid var(--border);transition:transform .3s ease,box-shadow .3s ease;}
.stat-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.stat-value{font-size:34px;font-weight:800;color:var(--ink);line-height:1;}
.stat-label{font-size:13px;color:var(--ink-2);margin-top:8px;font-weight:600;}

/* 职业历程时间线 */
.about-timeline{background:var(--bg-2);border-radius:var(--radius-md);padding:26px 28px;border:1px solid var(--border);}
.about-timeline-title{font-size:16px;font-weight:800;color:var(--ink);margin-bottom:16px;}
.timeline-list{list-style:none;margin:0;padding:0;position:relative;}
.timeline-list::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,#9ca3af,#4b5563);border-radius:2px;}
.timeline-item{position:relative;padding:0 0 16px 32px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-dot{position:absolute;left:0;top:2px;width:16px;height:16px;border-radius:50%;background:#fff;border:2px solid var(--ink);box-shadow:0 0 0 3px rgba(0,0,0,.06);display:flex;align-items:center;justify-content:center;font-size:9px;}
.timeline-dot--honor{border-color:var(--ink);box-shadow:0 0 0 3px rgba(0,0,0,.12);}
.timeline-year{font-size:13px;font-weight:800;color:var(--ink);letter-spacing:.05em;}
.timeline-item--honor .timeline-year{color:var(--ink);}
.timeline-title{font-size:15px;color:var(--ink-2);margin-top:3px;}

/* ===== 联系方式 ===== */
.section-contact{
  background:var(--surface);
  border-radius:var(--radius-xl);
  margin:48px auto 0;
  padding:80px var(--pad-x) 48px;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  position:relative;overflow:hidden;
}
.contact-container{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad-x);position:relative;z-index:2;}
.contact-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-bottom:64px;}
.contact-card{
  background:var(--bg-2);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:36px 24px;text-align:center;transition:all .3s;position:relative;
}
.contact-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--gray-300);}
.contact-card-icon{font-size:40px;margin-bottom:16px;}
.contact-card-label{font-size:13px;color:var(--ink-3);margin-bottom:8px;font-weight:500;}
.contact-card-value{font-size:18px;font-weight:700;color:var(--ink);}
.contact-footer{text-align:center;padding-top:40px;border-top:1px solid var(--border);}
.contact-footer p{font-size:14px;color:var(--ink-3);}

/* ===== 客片详情页 ===== */
.portfolio-page{min-height:100vh;background:var(--bg);padding:100px 0 40px;position:relative;z-index:10;}
.portfolio-header{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad-x) 24px;display:flex;align-items:center;gap:24px;}
.portfolio-header h2{font-size:26px;font-weight:800;color:var(--ink);}
.portfolio-body{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad-x);display:grid;grid-template-columns:1fr 1fr;gap:32px;}
.portfolio-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;align-content:start;max-height:calc(100vh - 180px);overflow-y:auto;padding-right:8px;}
.portfolio-grid::-webkit-scrollbar{width:6px;}
.portfolio-grid::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px;}
.client-card{
  border-radius:var(--radius-md);overflow:hidden;cursor:pointer;transition:all .25s;
  box-shadow:var(--shadow-sm);background:var(--surface);border:1px solid var(--border);
}
.client-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-md);}
.client-card.active{box-shadow:0 0 0 3px var(--ink);}
.client-card-cover{height:170px;background-size:cover;background-position:center;display:flex;align-items:flex-end;padding:12px;border-radius:var(--radius-sm);}
.client-card-cover-placeholder{width:100%;height:100%;display:flex;align-items:center;justify-content:center;font-size:48px;}
.client-card-info{padding:12px 10px 0;}
.client-card-name{font-size:15px;font-weight:700;color:var(--ink);}
.client-card-date{font-size:13px;color:var(--ink-3);margin-top:4px;}
.client-card-views{font-size:12px;color:var(--ink-2);margin-top:6px;font-weight:500;}
.portfolio-viewer{
  background:var(--surface);border-radius:var(--radius-md);box-shadow:var(--shadow-sm);
  padding:24px;min-height:500px;max-height:calc(100vh - 180px);overflow-y:auto;position:sticky;top:90px;
  border:1px solid var(--border);
}
.viewer-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;height:400px;color:var(--ink-3);}
.viewer-empty-icon{font-size:56px;margin-bottom:16px;}
.viewer-info{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;padding-bottom:16px;border-bottom:1px solid var(--border);}
.viewer-info h3{font-size:20px;color:var(--ink);}
.viewer-nav{display:flex;gap:8px;}
.viewer-image{border-radius:var(--radius-sm);overflow:hidden;}
.viewer-image img{width:100%;}
.viewer-image-placeholder{height:600px;background:var(--grad-2);display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;}

/* ===== 管理后台 ===== */
.admin-page{display:flex;min-height:100vh;background:var(--bg);position:relative;z-index:10;}
.admin-sidebar{width:260px;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:24px 0;position:fixed;top:0;bottom:0;left:0;z-index:100;}
.admin-sidebar-header{display:flex;align-items:center;gap:8px;padding:0 24px 24px;font-weight:800;font-size:18px;color:var(--ink);border-bottom:1px solid var(--border);}
.admin-menu{flex:1;padding:16px 0;}
.admin-menu-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;padding:12px 24px;font-size:15px;color:var(--ink-2);transition:.2s;}
.admin-menu-item:hover{background:var(--bg-2);color:var(--ink);}
.admin-menu-item.active{background:var(--bg-2);color:var(--ink);font-weight:700;border-right:3px solid var(--ink);}
.admin-back-btn{margin:16px 24px 0;}
.admin-content{flex:1;margin-left:260px;padding:32px;}
.admin-tab-content{display:none;}
.admin-tab-content.active{display:block;}
.admin-page-title{font-size:28px;font-weight:800;margin-bottom:24px;color:var(--ink);}
.admin-stat-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:32px;}
.admin-stat-card{background:var(--surface);border-radius:var(--radius-md);padding:24px;box-shadow:var(--shadow-sm);border:1px solid var(--border);}
.admin-stat-icon{font-size:32px;margin-bottom:12px;}
.admin-stat-value{font-size:32px;font-weight:800;color:var(--ink);}
.admin-stat-label{font-size:14px;color:var(--ink-3);}
.admin-panel{background:var(--surface);border-radius:var(--radius-md);padding:24px;margin-bottom:24px;box-shadow:var(--shadow-sm);border:1px solid var(--border);}
.admin-panel h3{font-size:18px;margin-bottom:16px;color:var(--ink);}
.panel-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;}
.panel-header h3{margin:0;}
.admin-table{width:100%;border-collapse:collapse;font-size:14px;}
.admin-table th{text-align:left;padding:12px 16px;background:var(--bg-2);font-weight:700;color:var(--ink);border-radius:var(--radius-sm);}
.admin-table td{padding:12px 16px;border-bottom:1px solid var(--border);}
.admin-table tr:hover td{background:var(--bg-2);}

/* ===== 表单 ===== */
.form-group{margin-bottom:16px;}
.form-group label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:var(--ink);}
.form-input{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;transition:.2s;background:var(--surface);color:var(--ink);}
.form-input:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(0,0,0,.08);}
.form-textarea{width:100%;padding:10px 14px;border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;resize:vertical;transition:.2s;background:var(--surface);font-family:inherit;color:var(--ink);}
.form-textarea:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(0,0,0,.08);}

/* ===== 弹窗 ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(10,10,10,.4);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);z-index:2000;display:flex;align-items:center;justify-content:center;padding:24px;}
.modal-card{
  background:var(--surface);border-radius:var(--radius-lg);padding:36px;max-width:420px;width:100%;
  position:relative;box-shadow:var(--shadow-lg);animation:modalIn .3s ease;
  border:1px solid var(--border);
}
.modal-card-lg{max-width:520px;}
@keyframes modalIn{from{opacity:0;transform:translateY(20px) scale(.96);}to{opacity:1;transform:translateY(0) scale(1);}}
.modal-close{position:absolute;top:16px;right:16px;width:32px;height:32px;border-radius:50%;font-size:16px;color:var(--ink-2);transition:.2s;}
.modal-close:hover{background:var(--bg-2);color:var(--ink);}
.modal-title{font-size:24px;font-weight:800;margin-bottom:8px;color:var(--ink);}
.modal-desc{font-size:14px;color:var(--ink-3);margin-bottom:24px;}
.login-tabs{display:flex;gap:8px;margin-bottom:24px;background:var(--bg-2);border-radius:var(--radius-sm);padding:4px;border:1px solid var(--border);}
.login-tab{flex:1;padding:10px;text-align:center;font-size:14px;border-radius:8px;transition:.2s;color:var(--ink-2);}
.login-tab.active{background:var(--surface);color:var(--ink);font-weight:700;box-shadow:var(--shadow-sm);}

/* ===== 裁剪弹窗 ===== */
.crop-modal{position:fixed;inset:0;background:rgba(10,10,10,.55);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);z-index:2500;display:flex;align-items:center;justify-content:center;padding:24px;}
.crop-modal-card{background:var(--surface);border-radius:var(--radius-lg);padding:24px;max-width:680px;width:100%;box-shadow:var(--shadow-lg);border:1px solid var(--border);}
.crop-modal-card h3{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:6px;}
.crop-modal-card .modal-desc{margin-bottom:16px;}
.crop-stage{position:relative;margin:0 auto 16px;max-width:100%;user-select:none;touch-action:none;background:var(--bg-2);border-radius:var(--radius-sm);overflow:hidden;display:flex;align-items:center;justify-content:center;}
.crop-stage img{display:block;max-width:100%;max-height:62vh;width:auto;height:auto;-webkit-user-drag:none;}
.crop-box{position:absolute;border:1.5px solid #fff;box-shadow:0 0 0 9999px rgba(10,10,10,.5);cursor:move;box-sizing:border-box;}
.crop-handle{position:absolute;right:-7px;bottom:-7px;width:14px;height:14px;background:#fff;border:1.5px solid var(--ink);border-radius:3px;cursor:nwse-resize;}
.crop-actions{display:flex;gap:12px;justify-content:flex-end;}

/* ===== 管理列表项 ===== */
.manage-item{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:8px;transition:.2s;background:var(--surface);}
.manage-item:hover{border-color:var(--gray-300);}
.manage-item-info{display:flex;align-items:center;gap:12px;}
.manage-item-cover{width:48px;height:48px;border-radius:8px;background-size:cover;background-position:center;flex-shrink:0;display:flex;align-items:center;justify-content:center;font-size:20px;}
.manage-item-text{font-size:14px;}
.manage-item-text strong{font-size:15px;color:var(--ink);}
.manage-item-text small{color:var(--ink-3);}
.manage-item-actions{display:flex;gap:8px;}
.btn-icon{padding:6px 10px;font-size:14px;border-radius:6px;transition:.2s;background:var(--bg-2);}
.btn-icon:hover{background:var(--bg-2);}
.btn-icon.danger:hover{background:rgba(0,0,0,.08);color:var(--ink);}

/* ===== 统计柱状图 ===== */
.stat-bar-item{margin-bottom:16px;}
.stat-bar-label{display:flex;justify-content:space-between;font-size:14px;color:var(--ink);}
.stat-bar-track{height:24px;background:var(--bg-2);border-radius:12px;overflow:hidden;border:1px solid var(--border);}
.stat-bar-fill{height:100%;border-radius:12px;transition:width .8s ease;display:flex;align-items:center;justify-content:flex-end;padding-right:12px;font-size:12px;color:#fff;font-weight:600;background:var(--ink);}

/* ===== Toast ===== */
.toast{position:fixed;top:84px;left:50%;transform:translateX(-50%);background:var(--ink);color:#fff;padding:12px 24px;border-radius:var(--radius-sm);font-size:14px;z-index:3000;animation:toastIn .3s ease;box-shadow:var(--shadow-md);}
@keyframes toastIn{from{opacity:0;transform:translate(-50%,-20px);}to{opacity:1;transform:translate(-50%,0);}}

/* ===== 响应式 ===== */
@media(max-width:1023px){
  .hero-content{flex-direction:column;align-items:flex-start;padding:130px var(--pad-x) 30px;gap:32px;}
  .hero-left{max-width:100%;width:100%;}
  .hero-feature{align-self:stretch;width:100%;min-width:0;}
  .hero-stats{padding-bottom:50px;}
  .hero-stat{border-right:0;border-bottom:1px solid var(--border);}
  .hero-stat:last-child{border-bottom:0;}
}
@media(max-width:768px){
  .nav-links{display:none;position:fixed;top:84px;left:0;right:0;background:var(--surface);flex-direction:column;padding:16px var(--pad-x);gap:8px;box-shadow:var(--shadow-md);border-bottom:1px solid var(--border);}
  .nav-links.show{display:flex;}
  .nav-links a{padding:12px 0;border-bottom:1px solid var(--border);}
  .nav-toggle{display:flex;}
  .nav-actions .btn{display:none;}
  .nav-actions .btn-primary{display:inline-flex;}
  .nav-actions .nav-toggle{display:flex;}

  .section{padding:70px var(--pad-x);}
  .section-works{padding:48px 18px;}
  .works-slider{gap:12px;}
  .works-stage{min-height:460px;}
  .works-nav{flex:0 0 44px;width:44px;height:44px;}
  .work-card{max-width:90%;}
  .work-card-cover{height:340px;}
  .work-card-title{font-size:24px;}
  .works-counter{margin-top:24px;}

  .about-container{flex-direction:column;gap:36px;text-align:center;padding:48px 24px;}
  .about-photo-wrap{flex:none;margin:0 auto;}
  .about-photo-frame{width:220px;height:270px;}
  .about-info .section-title{text-align:center;}
  .about-stats{justify-content:center;}
  .about-timeline{text-align:left;}

  .contact-cards{grid-template-columns:1fr;}

  .portfolio-body{grid-template-columns:1fr;}
  .portfolio-viewer{position:static;max-height:none;}

  .admin-sidebar{transform:translateX(-100%);transition:.3s;z-index:200;}
  .admin-sidebar.open{transform:translateX(0);}
  .admin-content{margin-left:0;padding:20px;}
  .admin-stat-cards{grid-template-columns:repeat(2,1fr);}

  .admin-table{font-size:12px;}
  .admin-table th,.admin-table td{padding:8px;}
}

/* ===== 滚动渐显动画 ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease;}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  .scroll-arrow{animation:none;}
}

/* ===== 线性图标统一尺寸 ===== */
.ic{width:var(--icon);height:var(--icon);flex:none;vertical-align:-0.18em;}
.section-tag .ic{width:15px;height:15px;vertical-align:-3px;}
.admin-sidebar-header .ic{width:20px;height:20px;}
.admin-menu-item .ic{width:18px;height:18px;flex:none;}
.btn .ic{width:16px;height:16px;}
.logo-icon .ic{width:22px;height:22px;}
.contact-card-icon .ic{width:40px;height:40px;}
.admin-stat-icon .ic{width:32px;height:32px;}
.manage-item-cover .ic{width:20px;height:20px;}
.viewer-empty-icon .ic{width:56px;height:56px;}
.timeline-dot .ic{width:9px;height:9px;}
.btn-icon .ic{width:15px;height:15px;}