* { margin:0; padding:0; box-sizing:border-box; }

:root {
  --page-bg: linear-gradient(145deg,#f8fafc,#eef2f7,#e2e8f0);
  --glass-bg: rgba(255,255,255,.7);
  --glass-border: rgba(255,255,255,.8);
  --text-main: #334155;
  --text-body: #475569;
  --text-soft: #64748b;
  --text-muted: #94a3b8;
  --text-strong: #1e293b;
  --label-color: #475569;
  --card-shadow: 0 4px 24px rgba(0,0,0,.04);
  --card-hover-shadow: 0 12px 40px rgba(0,0,0,.06);
  --hero-bg: rgba(255,255,255,.7);
  --capsule-bg: rgba(255,255,255,.6);
  --capsule-border: rgba(255,255,255,.8);
  --cap-item-bg: rgba(255,255,255,.2);
  --cap-item-color: #64748b;
  --cap-item-hover-bg: rgba(99,102,241,.08);
  --cap-item-hover-color: #334155;
  --footer-text: #94a3b8;
  --contact-item-bg: rgba(255,255,255,.5);
  --contact-item-hover-bg: rgba(255,255,255,.9);
  --skill-item-bg: rgba(255,255,255,.5);
  --skill-item-hover-bg: rgba(255,255,255,.9);
  --nav-item-bg: rgba(255,255,255,.5);
  --nav-item-hover-bg: rgba(255,255,255,.9);
  --social-item-bg: rgba(255,255,255,.6);
  --social-item-border: rgba(0,0,0,.05);
  --divider-color: rgba(0,0,0,.05);
  --toggle-bg: rgba(255,255,255,.4);
  --toggle-border: rgba(255,255,255,.6);
  --toggle-color: #64748b;
  --toggle-hover-bg: rgba(255,255,255,.7);
  --snow-color: rgba(147,197,253,.5);
  --outline-avatar: rgba(99,102,241,.15);
  --outline-motto: rgba(245,158,11,.15);
  --outline-contact: rgba(236,72,153,.15);
  --outline-about: rgba(59,130,246,.15);
  --outline-skills: rgba(139,92,246,.15);
  --outline-nav: rgba(16,185,129,.15);
}

[data-theme="dark"] {
  --page-bg: linear-gradient(145deg,#0f172a,#1e293b,#0f172a);
  --glass-bg: rgba(30,41,59,.65);
  --glass-border: rgba(255,255,255,.06);
  --text-main: #e2e8f0;
  --text-body: #cbd5e1;
  --text-soft: #94a3b8;
  --text-muted: #64748b;
  --text-strong: #f1f5f9;
  --label-color: #94a3b8;
  --card-shadow: 0 4px 24px rgba(0,0,0,.2);
  --card-hover-shadow: 0 12px 40px rgba(0,0,0,.3);
  --hero-bg: rgba(30,41,59,.65);
  --capsule-bg: rgba(30,41,59,.6);
  --capsule-border: rgba(255,255,255,.06);
  --cap-item-bg: rgba(255,255,255,.05);
  --cap-item-color: #94a3b8;
  --cap-item-hover-bg: rgba(99,102,241,.15);
  --cap-item-hover-color: #e2e8f0;
  --footer-text: #64748b;
  --contact-item-bg: rgba(255,255,255,.04);
  --contact-item-hover-bg: rgba(255,255,255,.08);
  --skill-item-bg: rgba(255,255,255,.04);
  --skill-item-hover-bg: rgba(255,255,255,.08);
  --nav-item-bg: rgba(255,255,255,.04);
  --nav-item-hover-bg: rgba(255,255,255,.08);
  --social-item-bg: rgba(255,255,255,.05);
  --social-item-border: rgba(255,255,255,.06);
  --divider-color: rgba(255,255,255,.06);
  --toggle-bg: rgba(255,255,255,.08);
  --toggle-border: rgba(255,255,255,.1);
  --toggle-color: #94a3b8;
  --toggle-hover-bg: rgba(255,255,255,.15);
  --snow-color: rgba(147,197,253,.6);
  --outline-avatar: rgba(129,140,248,.25);
  --outline-motto: rgba(251,191,36,.25);
  --outline-contact: rgba(244,114,182,.25);
  --outline-about: rgba(96,165,250,.25);
  --outline-skills: rgba(167,139,250,.25);
  --outline-nav: rgba(52,211,153,.25);
}

body {
  min-height:100vh;
  background:var(--page-bg);
  font-family:'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  padding:40px 20px 100px;
  color:var(--text-main);
  position:relative;
  transition:background .4s ease,color .3s ease;
}

.container { max-width:1040px; margin:0 auto; }

/* ═══ HERO ═══ */
.hero {
  text-align:center;
  margin-bottom:32px;
  padding:50px 30px 40px;
  background:var(--hero-bg);
  border-radius:24px;
  border:1px solid var(--glass-border);
  backdrop-filter:blur(12px);
  position:relative;
  overflow:hidden;
  box-shadow:var(--card-shadow);
  transition:background .4s ease,border-color .4s ease,box-shadow .4s ease;
}
.hero.has-banner { background-size:cover; background-position:center; }
.hero-banner-overlay {
  position:absolute;inset:0;pointer-events:none;z-index:0;
  background:linear-gradient(180deg,rgba(15,23,42,.25),rgba(15,23,42,.05) 50%,rgba(255,255,255,.15));
  border-radius:inherit;
}
.hero.has-banner .hero-bg { opacity:.35; }
.hero.has-banner .hero-title,
.hero.has-banner .hero-sub,
.hero.has-banner .hero-quote,
.hero.has-banner .hero-author { position:relative;z-index:1; }
.hero-bg {
  position:absolute;width:400px;height:400px;
  background:radial-gradient(circle,rgba(99,102,241,.06),transparent 70%);
  top:-120px;right:-80px;pointer-events:none;
}
.hero-title {
  font-size:2.4rem;font-weight:600;
  background:linear-gradient(135deg,#6366f1,#8b5cf6,#ec4899);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:4px;position:relative;
}
.hero-sub { color:var(--text-soft); font-size:.95rem; margin-top:6px; position:relative; }
.hero-divider {
  width:60px;height:2px;
  background:linear-gradient(90deg,#6366f1,#8b5cf6);
  margin:20px auto;border-radius:2px;
}
.hero-quote { color:var(--text-body); font-size:1rem; line-height:1.7; max-width:560px; margin:0 auto; position:relative; }
.hero-author { color:var(--text-muted); font-size:.82rem; margin-top:8px; position:relative; }

/* ═══ THEME TOGGLE ═══ */
.theme-toggle {
  position:absolute;top:14px;right:18px;
  width:34px;height:34px;border-radius:50%;
  border:1px solid var(--toggle-border);
  background:var(--toggle-bg);
  backdrop-filter:blur(8px);
  cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  color:var(--toggle-color);font-size:.92rem;
  transition:all .3s ease;z-index:5;
  box-shadow:0 2px 8px rgba(0,0,0,.04);
  line-height:1;
}
.theme-toggle:hover { transform:scale(1.12); background:var(--toggle-hover-bg); }
.theme-toggle i { pointer-events:none; }

/* ═══ SNOWFLAKES ═══ */
.snowflakes {
  position:absolute;inset:0;
  pointer-events:none;overflow:hidden;
  z-index:0;
}
.snowflake {
  position:absolute;top:-24px;
  font-size:14px;
  color:var(--snow-color);
  animation:snowFall linear infinite;
  pointer-events:none;
  will-change:transform,opacity;
}
@keyframes snowFall {
  0%   { top:-24px; transform:translateX(0) rotate(0deg); opacity:0; }
  10%  { opacity:.7; }
  50%  { transform:translateX(14px) rotate(180deg); opacity:.9; }
  100% { top:100%; transform:translateX(-8px) rotate(360deg); opacity:0; }
}

/* ═══ TWO-COLUMN ═══ */
.content { display:flex; gap:20px; align-items:flex-start; }
.col-left { flex:1; display:flex; flex-direction:column; gap:20px; min-width:0; }
.col-right { flex:2; display:flex; flex-direction:column; gap:20px; min-width:0; }

/* ═══ CARD ═══ */
.card {
  background:var(--glass-bg);
  border-radius:20px;
  border:1px solid var(--glass-border);
  backdrop-filter:blur(12px);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease,background .4s ease,border-color .4s ease;
  box-shadow:var(--card-shadow);
  position:relative;
}
.card:hover { transform:translateY(-2px); box-shadow:var(--card-hover-shadow); }

.card-body { padding:22px 24px; }

.card-label {
  font-size:.85rem;font-weight:600;text-transform:uppercase;
  letter-spacing:1px;margin-bottom:16px;color:var(--label-color);
  display:flex;align-items:center;gap:8px;
}

/* ═══ AVATAR ═══ */
.avatar-card.has-banner { background-size:cover; background-position:center; }
.avatar-card .card-head {
  height:100px;
  background:linear-gradient(135deg,#6366f1,#8b5cf6);
  display:flex;align-items:flex-end;justify-content:center;
  position:relative;z-index:1;
}
.avatar-card.has-banner .card-head { background:transparent; }
.avatar-overlay {
  position:absolute;inset:0;pointer-events:none;z-index:0;
  background:linear-gradient(180deg,rgba(99,102,241,.15),rgba(139,92,246,.08) 30%,rgba(255,255,255,.35) 70%,rgba(255,255,255,.12));
  border-radius:inherit;
}
.avatar-card .card-body { position:relative;z-index:1; padding-top:52px; text-align:center; }
.avatar-img, .avatar-placeholder {
  width:80px;height:80px;border-radius:50%;
  border:4px solid #fff;
  transform:translateY(50%);
  box-shadow:0 4px 20px rgba(0,0,0,.1);
}
.avatar-img { object-fit:cover; }
.avatar-placeholder {
  background:linear-gradient(135deg,#6366f1,#a78bfa);
  display:flex;align-items:center;justify-content:center;
  font-size:2rem;color:#fff;
}
.avatar-name { font-size:1.3rem; font-weight:600; color:var(--text-strong); }
.avatar-tagline {
  font-size:.85rem; margin-top:4px;
  background:linear-gradient(90deg,#d4a017,#f5d742,#d4a017,#f5d742);
  background-size:200% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:goldFlow 2.5s linear infinite;
}
@keyframes goldFlow { 0%{background-position:0% 0} 100%{background-position:200% 0} }

/* ═══ MOTTO ═══ */
.motto-card .card-label i { color:#f59e0b; }
.motto-card blockquote {
  font-style:italic;color:var(--text-body);font-size:.95rem;line-height:1.7;
  padding-left:16px;border-left:3px solid rgba(245,158,11,.25);
}

/* ═══ CONTACT ═══ */
.contact-card .card-label i { color:#ec4899; }
.contact-list { display:flex; flex-direction:column; gap:8px; }
.contact-item {
  display:flex;align-items:center;gap:10px;
  text-decoration:none;color:var(--text-body);font-size:.85rem;
  padding:8px 12px;border-radius:12px;
  transition:all .2s ease;background:var(--contact-item-bg);
}
.contact-item:hover { background:var(--contact-item-hover-bg); transform:translateX(4px); }
.contact-icon {
  width:32px;height:32px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(236,72,153,.1);color:#ec4899;font-size:.85rem;flex-shrink:0;
}
.contact-icon i { font-size:.9rem; }

.social-list { display:flex; flex-wrap:wrap; gap:10px; margin-top:14px; padding-top:14px; border-top:1px solid var(--divider-color); }
.social-item {
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  text-decoration:none;color:var(--text-muted);font-size:1rem;
  background:var(--social-item-bg);border:1px solid var(--social-item-border);
  transition:all .25s ease;
}
.social-item:hover { background:linear-gradient(135deg,#6366f1,#8b5cf6); color:#fff; transform:translateY(-3px); border-color:transparent; }
.social-item img { width:18px;height:18px;object-fit:contain;transition:filter .25s ease; }
.social-item:hover img { filter:brightness(1); }

/* ═══ ABOUT ═══ */
.about-card .card-label i { color:#3b82f6; }
.about-text { color:var(--text-body); font-size:.92rem; line-height:1.8; }

/* ═══ SKILLS ═══ */
.skills-card .card-label i { color:#8b5cf6; }
.skill-group { font-size:.8rem; color:var(--text-soft); margin-bottom:10px; display:flex; align-items:center; gap:6px; }
.skill-group i { font-size:.8rem; }
.skill-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:8px; }
.skill-item {
  background:var(--skill-item-bg);border-radius:12px;
  padding:14px 6px;text-align:center;
  border:1px solid var(--divider-color);
  transition:all .25s ease;cursor:default;
}
.skill-item:hover { background:var(--skill-item-hover-bg); transform:translateY(-2px); }
.skill-item i { font-size:1.4rem; display:block; margin-bottom:6px; color:#8b5cf6; }
.skill-name { display:block; font-size:.75rem; color:var(--text-soft); margin-bottom:2px; }
.skill-pct { display:block; font-size:.7rem; color:#8b5cf6; font-weight:600; }

/* ═══ NAV ═══ */
.nav-card .card-label i { color:#10b981; }
.nav-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:8px; }
.nav-item {
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;
  padding:16px 8px;background:var(--nav-item-bg);border-radius:14px;
  text-decoration:none;color:var(--text-soft);aspect-ratio:1/1;
  border:1px solid var(--divider-color);transition:all .25s ease;
}
.nav-item i { font-size:1.4rem; color:#10b981; transition:transform .25s ease; }
.nav-item span { font-size:.78rem; }
.nav-item:hover { background:var(--nav-item-hover-bg); transform:translateY(-2px); border-color:rgba(16,185,129,.15); }
.nav-item:hover i { transform:scale(1.15); }

/* ═══ DECORATIVE BORDERS ═══ */

/* ── Avatar: dotted indigo ring + star corners ── */
.avatar-card {
  outline: 2px dotted var(--outline-avatar);
  outline-offset: 4px;
}
.avatar-card::before {
  content:'✦';position:absolute;top:7px;left:11px;
  font-size:12px;color:rgba(99,102,241,.25);
  pointer-events:none;z-index:1;line-height:1;
}
.avatar-card::after {
  content:'✦';position:absolute;bottom:7px;right:11px;
  font-size:12px;color:rgba(99,102,241,.25);
  pointer-events:none;z-index:1;line-height:1;
}

/* ── Motto: dashed amber ring + quote corners ── */
.motto-card {
  outline: 2px dashed var(--outline-motto);
  outline-offset: 4px;
}
.motto-card::before {
  content:'❝';position:absolute;top:5px;left:10px;
  font-size:14px;color:rgba(245,158,11,.2);
  pointer-events:none;z-index:1;line-height:1;
}
.motto-card::after {
  content:'❞';position:absolute;bottom:5px;right:10px;
  font-size:14px;color:rgba(245,158,11,.2);
  pointer-events:none;z-index:1;line-height:1;
}

/* ── Contact: dotted rose ring + postal corners ── */
.contact-card {
  outline: 2px dotted var(--outline-contact);
  outline-offset: 4px;
}
.contact-card::before {
  content:'✉';position:absolute;top:6px;right:12px;
  font-size:11px;color:rgba(236,72,153,.25);
  pointer-events:none;z-index:1;line-height:1;
}
.contact-card::after {
  content:'❀';position:absolute;bottom:6px;left:12px;
  font-size:11px;color:rgba(236,72,153,.2);
  pointer-events:none;z-index:1;line-height:1;
}

/* ── About: dashed blue ring + fleuron corners ── */
.about-card {
  outline: 2px dashed var(--outline-about);
  outline-offset: 4px;
}
.about-card::before {
  content:'❧';position:absolute;top:5px;left:10px;
  font-size:14px;color:rgba(59,130,246,.2);
  pointer-events:none;z-index:1;line-height:1;
}
.about-card::after {
  content:'❧';position:absolute;bottom:5px;right:10px;
  font-size:14px;color:rgba(59,130,246,.2);
  pointer-events:none;z-index:1;line-height:1;
}

/* ── Skills: dotted violet ring + diamond corners ── */
.skills-card {
  outline: 2px dotted var(--outline-skills);
  outline-offset: 4px;
}
.skills-card::before {
  content:'◆';position:absolute;top:6px;left:11px;
  font-size:10px;color:rgba(139,92,246,.25);
  pointer-events:none;z-index:1;line-height:1;
}
.skills-card::after {
  content:'◇';position:absolute;bottom:6px;right:11px;
  font-size:10px;color:rgba(139,92,246,.2);
  pointer-events:none;z-index:1;line-height:1;
}

/* ── Nav: dotted emerald ring + lozenge corners ── */
.nav-card {
  outline: 2px dotted var(--outline-nav);
  outline-offset: 4px;
}
.nav-card::before {
  content:'◈';position:absolute;top:6px;left:11px;
  font-size:10px;color:rgba(16,185,129,.25);
  pointer-events:none;z-index:1;line-height:1;
}
.nav-card::after {
  content:'◈';position:absolute;bottom:6px;right:11px;
  font-size:10px;color:rgba(16,185,129,.2);
  pointer-events:none;z-index:1;line-height:1;
}

/* ═══ FOOTER ═══ */
footer { text-align:center; margin-top:32px; padding:20px 0; color:var(--footer-text); font-size:.82rem; transition:color .3s ease; }
footer a { color:#6366f1; text-decoration:none; }
footer a:hover { text-decoration:underline; }

/* ═══════════════════════════════════════
   CAPSULE — Left-to-Right Wave Flow
   ═══════════════════════════════════════ */
.capsule {
  position:fixed;bottom:28px;left:50%;transform:translateX(-50%);z-index:999;
  padding:5px 6px;border-radius:60px;
  background:var(--capsule-bg);
  backdrop-filter:blur(24px);
  border:1px solid var(--capsule-border);
  box-shadow:0 8px 32px rgba(0,0,0,.06);
  display:flex;align-items:center;justify-content:center;
  overflow:hidden;
  transition:background .4s ease,border-color .4s ease;
}
.capsule-wave {
  position:absolute;inset:0;border-radius:60px;
  background:repeating-linear-gradient(90deg,
    rgba(99,102,241,.08) 0px,
    rgba(139,92,246,.1) 20px,
    rgba(245,158,11,.06) 40px,
    rgba(16,185,129,.08) 55px,
    rgba(99,102,241,.06) 75px,
    rgba(139,92,246,.06) 90px,
    transparent 100px);
  background-size:100px 100%;
  animation:capsuleFlow 2.5s linear infinite;
  pointer-events:none;z-index:0;
}
@keyframes capsuleFlow { 0%{background-position:0 0} 100%{background-position:100px 0} }
.capsule::after {
  content:'';position:absolute;inset:0;border-radius:60px;
  background:radial-gradient(ellipse 50px 14px at 0% 50%,rgba(255,255,255,.3) 0%,transparent 100%);
  background-size:300% 100%;
  animation:capsuleRipple 2.5s ease-in-out infinite;
  pointer-events:none;z-index:0;
}
@keyframes capsuleRipple {
  0%{background-position:0% 50%;opacity:0;transform:scaleY(.95)}
  15%{opacity:.6;transform:scaleY(1.04)}
  35%{background-position:30% 50%;opacity:.7;transform:scaleY(1.06)}
  55%{background-position:55% 50%;opacity:.3;transform:scaleY(.97)}
  75%{background-position:75% 50%;opacity:.5;transform:scaleY(1.03)}
  90%{opacity:.3}
  100%{background-position:100% 50%;opacity:0;transform:scaleY(.95)}
}
.capsule-items{display:flex;align-items:center;gap:3px;padding:0 8px;position:relative;z-index:1}
.cap-item{
  display:flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:50%;text-decoration:none;color:var(--cap-item-color);
  transition:all .25s ease;position:relative;
  background:var(--cap-item-bg);
}
.cap-item i{font-size:1.1rem;transition:transform .25s ease}
.cap-item img{width:20px;height:20px;object-fit:contain;transition:transform .25s ease}
.cap-item:hover{background:var(--cap-item-hover-bg);color:var(--cap-item-hover-color)}
.cap-item:hover i,.cap-item:hover img{transform:scale(1.2)}
.cap-label{
  position:absolute;bottom:calc(100% + 10px);left:50%;
  transform:translateX(-50%) scale(.8);
  background:var(--glass-bg);backdrop-filter:blur(8px);
  padding:4px 10px;border-radius:6px;font-size:.68rem;color:var(--text-body);
  white-space:nowrap;opacity:0;pointer-events:none;
  transition:all .2s ease;border:1px solid var(--glass-border);
  box-shadow:0 4px 12px rgba(0,0,0,.04);
}
.cap-item:hover .cap-label{opacity:1;transform:translateX(-50%) scale(1)}
.cap-divider{width:1px;height:22px;background:var(--divider-color);margin:0 3px;position:relative;z-index:1}

@media(max-width:800px){
  .content{flex-direction:column}
  .col-left,.col-right{flex:1 1 auto}
  .skill-grid{grid-template-columns:repeat(3,1fr)}
  .nav-grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:540px){
  body{padding:20px 12px 90px}
  .hero{padding:36px 20px 28px}
  .hero-title{font-size:1.6rem}
  .skill-grid{grid-template-columns:repeat(2,1fr)}
  .nav-grid{grid-template-columns:repeat(2,1fr)}
  .capsule{bottom:18px}
  .cap-item{width:36px;height:36px}
  .cap-item i{font-size:1rem}
  .cap-item img{width:18px;height:18px}
}

/* 备案号样式 */
.beian-record {
  margin-top: 8px;
  font-size: 14px;
  text-align: center;
}
.beian-record a {
  color: #999;
  text-decoration: none;
}
.beian-record a:hover {
  color: #667eea;
}