/* ========== 刘璟个人主页 · 简约商务风（三主题：太阳/月亮/自然绿） ========== */

/* ---- 太阳（默认） ---- */
:root, body[data-theme="sun"]{
  --main:#C97A3E;       /* 暖橙主色 */
  --main-deep:#a8652c;
  --accent:#c9a227;     /* 金色点缀 */
  --bg:#f7f6f3;         /* 暖米白背景 */
  --card:#ffffff;
  --text:#2a2f36;
  --muted:#6b7280;
  --line:#e7e0d4;
  --nav-bg:#ffffff;
  --footer-bg:#2b241c;
  --hero-grad:linear-gradient(135deg,#7a4a20 0%,#a8652c 50%,#c98a4b 100%);
  --contact-bg:#3a2c1c;
}
/* ---- 月亮（夜幕） ---- */
body[data-theme="moon"]{
  --main:#5d7fb3;       /* 雾蓝主色 */
  --main-deep:#4a6693;
  --accent:#8fb0dd;     /* 浅蓝点缀 */
  --bg:#1a1f2b;
  --card:#232a3a;
  --text:#e9edf4;
  --muted:#9aa4b5;
  --line:#333c4e;
  --nav-bg:#1e2434;
  --footer-bg:#12151d;
  --hero-grad:linear-gradient(135deg,#141a2b 0%,#1f3a5f 55%,#2a5392 100%);
  --contact-bg:#182134;
}
/* ---- 自然绿 ---- */
body[data-theme="green"]{
  --main:#2f6b4f;       /* 墨绿主色 */
  --main-deep:#24543d;
  --accent:#4f9e73;     /* 自然绿点缀 */
  --bg:#f1f6f2;
  --card:#ffffff;
  --text:#24332a;
  --muted:#64766b;
  --line:#dbe7df;
  --nav-bg:#ffffff;
  --footer-bg:#1c2e23;
  --hero-grad:linear-gradient(135deg,#1c3a28 0%,#2f6b4f 55%,#3f8a66 100%);
  --contact-bg:#1e3527;
}

*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;color:var(--text);background:var(--bg);line-height:1.6;transition:background .4s,color .4s;}
a{text-decoration:none;color:inherit;}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px;}

/* 主题切换区块（联系咨询后） */
.theme-switch{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}
.theme-opt{background:var(--card);border:1px solid var(--line);border-radius:24px;padding:12px 28px;font-size:15px;color:var(--text);cursor:pointer;transition:.3s;font-family:inherit;}
.theme-opt:hover{border-color:var(--main);transform:translateY(-2px);}
.theme-opt.active{background:var(--main);color:#fff;border-color:var(--main);box-shadow:0 8px 20px rgba(0,0,0,.12);}

/* 导航 */
.nav{position:sticky;top:0;z-index:50;background:var(--nav-bg);border-bottom:1px solid var(--line);}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:60px;}
.logo{font-size:18px;font-weight:700;color:var(--main);}
.logo small{display:block;font-size:11px;color:var(--muted);font-weight:400;}
.nav-links{display:flex;gap:24px;font-size:14px;color:var(--muted);}
.nav-links a:hover{color:var(--main);}
.nav-cta{background:var(--main);color:#fff;padding:8px 16px;border-radius:6px;font-size:13px;}
.nav-cta:hover{background:var(--main-deep);}

/* Hero */
.hero{background:var(--hero-grad);color:#fff;padding:70px 0 60px;text-align:center;}
.hero .tag{display:inline-block;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);padding:5px 14px;border-radius:20px;font-size:13px;margin-bottom:20px;}
.hero h1{font-size:40px;font-weight:800;letter-spacing:1px;}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero p{max-width:640px;margin:18px auto 0;font-size:16px;opacity:.92;}
.hero-btns{display:flex;gap:14px;justify-content:center;margin-top:28px;flex-wrap:wrap;}
.btn{padding:12px 28px;border-radius:8px;font-size:15px;font-weight:600;display:inline-block;}
.btn-gold{background:var(--accent);color:#fff;}
.btn-gold:hover{filter:brightness(1.08);}
.btn-outline{border:1px solid rgba(255,255,255,.6);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.12);}
.hero-trust{display:flex;gap:40px;justify-content:center;margin-top:40px;flex-wrap:wrap;font-size:13px;opacity:.88;}
.hero-trust b{display:block;font-size:20px;color:var(--accent);}

/* 通用 */
section{padding:60px 0;}
.sec-title{text-align:center;margin-bottom:40px;}
.sec-title h2{font-size:28px;color:var(--main);}
.sec-title p{color:var(--muted);margin-top:8px;font-size:15px;}

/* 服务 */
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;}
.card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:26px 22px;transition:.25s;}
.card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0,0,0,.10);}
.card .ico{font-size:30px;}
.card h3{font-size:17px;color:var(--main);margin:12px 0 8px;}
.card p{font-size:13px;color:var(--muted);}
.card .list{margin-top:10px;font-size:13px;color:var(--text);}
.card .list li{margin:4px 0;list-style:none;}
.card .list li::before{content:"• ";color:var(--accent);}

/* 案例故事 */
.story-card{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:20px;border-left:4px solid var(--accent);}
.story-head{display:flex;gap:10px;align-items:center;margin-bottom:10px;}
.story-head .flag{font-size:24px;}
.story-head h4{color:var(--main);font-size:15px;}
.story-head .meta{font-size:11px;color:var(--accent);font-weight:600;}
.story-body{font-size:14px;color:var(--text);line-height:1.8;}
.story-body b{color:var(--main);}
.story-quote{margin-top:10px;font-size:13px;color:var(--muted);border-top:1px dashed var(--line);padding-top:8px;font-style:italic;}
.case-note{text-align:center;font-size:12px;color:var(--muted);margin-top:18px;}

/* 干货 */
.insight-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px;}
.insight{background:var(--card);border:1px dashed var(--line);border-radius:12px;padding:34px 26px;text-align:center;color:var(--muted);}
.insight .ico{font-size:30px;opacity:.5;}
.insight h4{font-size:15px;color:var(--text);margin:12px 0 6px;}
.insight p{font-size:12px;}

/* 自媒体 */
.media-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:20px;max-width:720px;margin:0 auto;}
.media{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:30px;text-align:center;}
.media .ico{font-size:34px;}
.media h4{font-size:16px;margin:12px 0 6px;color:var(--main);}
.media p{font-size:12px;color:var(--muted);}
.media .go{display:inline-block;margin-top:12px;font-size:12px;color:var(--main);border:1px solid var(--main);border-radius:16px;padding:5px 14px;}

/* 表单 */
.form-card{background:var(--card);border:1px solid var(--line);border-radius:12px;max-width:680px;margin:0 auto;padding:34px 30px;}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{display:flex;flex-direction:column;gap:6px;}
.field.full{grid-column:1/-1;}
.field label{font-size:13px;color:var(--main);font-weight:600;}
.field input,.field select,.field textarea{padding:11px 12px;border:1px solid var(--line);border-radius:8px;font-size:14px;font-family:inherit;background:var(--bg);color:var(--text);}
.field textarea{resize:vertical;min-height:80px;}
.form-btn{margin-top:20px;width:100%;border:none;cursor:pointer;border-radius:8px;}
.form-tip{text-align:center;font-size:12px;color:var(--muted);margin-top:14px;}

/* 联系 */
.contact{background:var(--contact-bg);color:#fff;}
.contact .sec-title h2{color:#fff;}
.contact .sec-title p{color:rgba(255,255,255,.7);}
.contact-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:20px;text-align:center;}
.contact-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:12px;padding:24px;}
.contact-item .ico{font-size:28px;}
.contact-item h4{font-size:14px;margin:10px 0 6px;color:var(--accent);}
.contact-item p{font-size:14px;color:#fff;word-break:break-all;}

/* 页脚 */
footer{background:var(--footer-bg);color:rgba(255,255,255,.6);text-align:center;padding:28px 20px;font-size:12px;line-height:1.8;}

/* 手机 */
@media(max-width:640px){
  .nav-links{display:none;}
  .hero h1{font-size:28px;}
  .form-grid{grid-template-columns:1fr;}
  .hero-trust{gap:20px;}
}

/* 联系咨询内的主题切换 */
.theme-in-contact{margin-top:36px;text-align:center;border-top:1px solid rgba(255,255,255,.12);padding-top:30px;}
.theme-label{font-size:13px;color:rgba(255,255,255,.7);letter-spacing:1px;margin-bottom:16px;}
.contact .theme-opt{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);color:#fff;}
.contact .theme-opt:hover{border-color:#fff;background:rgba(255,255,255,.14);}
.contact .theme-opt.active{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 8px 20px rgba(0,0,0,.2);}

/* 导航右上角主题按钮 */
.nav-right{display:flex;align-items:center;gap:12px;}
.theme-btn{width:38px;height:38px;border-radius:50%;background:var(--card);border:1px solid var(--line);font-size:18px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:.3s;}
.theme-btn:hover{transform:rotate(15deg) scale(1.08);border-color:var(--main);}

/* ========== 虚拟形象 AI 助手 · 小璟 ========== */
.bot-float{position:fixed;right:18px;bottom:18px;z-index:98;width:56px;height:56px;border-radius:50%;border:none;cursor:pointer;background:linear-gradient(135deg,var(--main),var(--main-deep));box-shadow:0 8px 24px rgba(0,0,0,.18);display:flex;align-items:center;justify-content:center;transition:.3s;}
.bot-float:hover{transform:scale(1.08);}
.bot-orb{font-size:28px;filter:drop-shadow(0 2px 4px rgba(0,0,0,.2));}
.bot-float.busy .bot-orb{animation:pulse 1s infinite;}
@keyframes pulse{0%,100%{transform:scale(1);}50%{transform:scale(1.15);}}

.bot-panel{position:fixed;right:18px;bottom:84px;z-index:98;width:400px;max-height:620px;background:var(--card);border:1px solid var(--line);border-radius:16px;display:none;flex-direction:column;box-shadow:0 20px 50px rgba(0,0,0,.18);overflow:hidden;}
.bot-panel.show{display:flex;}

.bot-head{display:flex;align-items:center;gap:12px;padding:14px 16px;background:linear-gradient(135deg,var(--main),var(--main-deep));color:#fff;}
.bot-avatar{width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.2);display:flex;align-items:center;justify-content:center;font-size:22px;}
.bot-title b{font-size:15px;display:block;}
.bot-title small{font-size:11px;opacity:.85;}
.bot-close{margin-left:auto;background:none;border:none;color:#fff;font-size:18px;cursor:pointer;}

.bot-msgs{flex:1 1 auto;overflow-y:auto;padding:14px;display:flex;flex-direction:column;gap:10px;min-height:0;}
.bm{max-width:82%;padding:10px 13px;border-radius:12px;font-size:14px;line-height:1.7;word-break:break-word;}
.bm.bot{background:var(--bg);color:var(--text);align-self:flex-start;border-bottom-left-radius:4px;}
.bm.me{background:var(--main);color:#fff;align-self:flex-end;border-bottom-right-radius:4px;}
.bm.typing{color:var(--muted);font-style:italic;}

.bot-qs{display:flex;align-items:center;justify-content:center;gap:8px;padding:8px 10px;border-top:1px solid var(--line);flex:none;min-height:40px;}
.bot-qs .qs-main{flex:0 1 auto;max-width:88%;border:1px solid var(--main);background:var(--bg);border-radius:18px;padding:7px 14px;font-size:12px;cursor:pointer;color:var(--main);font-family:inherit;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;animation:qsIn .4s ease;}
.bot-qs .qs-main:active{background:var(--main);color:#fff;}
.qs-dots{display:inline-flex;gap:4px;flex:none;}
.qs-dots i{width:5px;height:5px;border-radius:50%;background:var(--line);transition:background .3s;}
.qs-dots i.on{background:var(--main);}
@keyframes qsIn{from{opacity:0;transform:translateY(4px);}to{opacity:1;transform:none;}}
.bot-qs button:hover{border-color:var(--main);color:var(--main);}

.bot-input{display:flex;gap:8px;padding:10px 12px;border-top:1px solid var(--line);}
.bot-input input{flex:1;padding:10px 12px;border:1px solid var(--line);border-radius:20px;font-size:14px;font-family:inherit;background:var(--bg);color:var(--text);outline:none;}
.bot-input input:focus{border-color:var(--main);}
.bot-input button{width:40px;border:none;border-radius:50%;background:var(--main);color:#fff;font-size:15px;cursor:pointer;}

@media(max-width:640px){
  .bot-panel{right:8px;left:8px;width:auto;height:82vh;max-height:82vh;}
  .bot-msgs{min-height:0;flex:1 1 auto;}
  .bot-msgs{font-size:15px;}
  .bm{font-size:15px;padding:12px 14px;}
  .bot-qs{flex:none;}
  .bot-input{flex:none;}
}

/* 语音输入按钮 */

.mic-tip{background:var(--bg);color:var(--main);font-size:12px;padding:6px 12px;border-radius:8px;margin:6px 10px 0;text-align:center;line-height:1.5;}

.mic-btn{background:transparent;border:none;font-size:18px;cursor:pointer;border-radius:50%;width:38px;flex:none;}
.mic-btn:hover{background:var(--bg);}
.mic-btn.listening{background:var(--main);animation:micPulse 1.2s infinite;}
@keyframes micPulse{0%,100%{box-shadow:0 0 0 0 rgba(166,124,82,.4);}50%{box-shadow:0 0 0 8px rgba(166,124,82,0);}}

/* ========== 手机端汉堡菜单 ========== */
.hamburger{display:none;width:38px;height:38px;border:none;background:transparent;font-size:22px;color:var(--text);cursor:pointer;border-radius:8px;align-items:center;justify-content:center;line-height:1;}
.hamburger:hover{background:var(--bg);}
.mobile-menu{display:none;flex-direction:column;background:var(--card);border-top:1px solid var(--line);padding:8px 0;position:relative;z-index:99;}
.mobile-menu a{padding:13px 22px;font-size:15px;color:var(--text);border-bottom:1px solid var(--line);}
.mobile-menu a:last-child{border-bottom:none;}
.mobile-menu a:hover{color:var(--main);background:var(--bg);}
.mobile-menu .mm-cta{color:var(--main);font-weight:600;}
@media(max-width:640px){
  .nav-links{display:none;}
  .nav-cta{display:none;}
  .hamburger{display:flex;}
  .mobile-menu{display:none;}
  .mobile-menu.show{display:flex !important;}
}

.tel-link{color:var(--main);text-decoration:underline;text-underline-offset:3px;font-weight:600;}
.tel-link:hover{color:var(--main-deep);}
.tel-link:active{opacity:.7;}

.wx-link{color:var(--main);text-decoration:underline;text-underline-offset:3px;font-weight:600;cursor:pointer;-webkit-user-select:all;user-select:all;}
.wx-link:hover{color:var(--main-deep);}
.wx-tip{position:fixed;left:50%;bottom:110px;transform:translateX(-50%);background:rgba(33,33,33,.92);color:#fff;font-size:13px;padding:12px 18px;border-radius:12px;max-width:82%;text-align:center;line-height:1.6;z-index:999;opacity:0;pointer-events:none;transition:opacity .3s;white-space:pre-line;}
.wx-tip.show{opacity:1;}
.wx-tip.ok{background:rgba(44,120,80,.95);}

.bot-wx{background:none;border:none;color:#fff;font-size:17px;cursor:pointer;padding:4px 6px;border-radius:8px;margin-right:2px;opacity:.9;}
.bot-wx:hover{background:rgba(255,255,255,.2);opacity:1;}

.tel-btn{display:inline-block;background:var(--main);color:#fff;padding:9px 18px;border-radius:24px;font-weight:600;font-size:15px;text-decoration:none;box-shadow:0 3px 10px rgba(166,124,82,.25);transition:transform .15s,background .2s;}
.tel-btn:hover{background:var(--main-deep);transform:translateY(-1px);}
.tel-btn:active{transform:scale(.97);}
.tel-hint{color:var(--muted);font-size:12px;margin-top:8px;}

.wx-modal{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:1000;display:flex;align-items:center;justify-content:center;padding:24px;backdrop-filter:blur(2px);}
.wx-modal-box{background:#fff;border-radius:20px;padding:28px 24px;max-width:340px;width:100%;text-align:center;position:relative;box-shadow:0 20px 60px rgba(0,0,0,.25);animation:qsIn .3s ease;}
.wx-modal-close{position:absolute;top:12px;right:14px;background:none;border:none;font-size:16px;color:#999;cursor:pointer;}
.wx-modal-title{font-size:17px;font-weight:700;color:var(--text);margin-bottom:14px;}
.wx-modal-id{font-size:22px;font-weight:700;color:var(--main);letter-spacing:1px;padding:12px;background:var(--bg);border-radius:12px;border:1px dashed var(--main);margin-bottom:14px;-webkit-user-select:all;user-select:all;}
.wx-modal-copy{background:var(--main);color:#fff;border:none;border-radius:24px;padding:11px 28px;font-size:15px;font-weight:600;cursor:pointer;box-shadow:0 3px 10px rgba(166,124,82,.3);}
.wx-modal-copy:hover{background:var(--main-deep);}
.wx-modal-copy:active{transform:scale(.97);}
.wx-modal-steps{display:flex;justify-content:center;gap:14px;margin:16px 0 14px;font-size:12px;color:#666;flex-wrap:wrap;}
.wx-modal-qr{width:150px;height:150px;margin:0 auto;border:1px solid #eee;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#bbb;font-size:12px;text-align:center;line-height:1.5;background:#fafafa;}
.wx-modal-tip{font-size:12px;color:#999;margin-top:12px;}

.wx-modal-qr{width:190px;margin:0 auto;border-radius:14px;overflow:hidden;border:1px solid #eee;background:#fff;box-shadow:0 2px 8px rgba(0,0,0,.06);}
.wx-modal-qr img{width:100%;display:block;}
.wx-mini{width:110px;border-radius:10px;cursor:pointer;margin-top:8px;border:1px solid #eee;display:block;box-shadow:0 2px 6px rgba(0,0,0,.06);transition:transform .15s;}
.wx-mini:hover{transform:scale(1.04);}

/* ===== 个人风采 ===== */
.about{background:var(--bg);}
.about-grid{display:grid;grid-template-columns:320px 1fr;gap:40px;align-items:start;margin-bottom:44px;}
.about-photo .photo-box{width:100%;aspect-ratio:3/4;border-radius:18px;background:linear-gradient(160deg,var(--bg),var(--card));border:1px solid var(--line);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;box-shadow:0 12px 30px rgba(0,0,0,.06);}
.about-photo .photo-emoji{font-size:64px;opacity:.8;}
.about-photo .photo-tag{font-size:12px;color:var(--muted);background:var(--card);border:1px solid var(--line);padding:4px 12px;border-radius:14px;}
.about-photo .photo-info{margin-top:12px;text-align:center;}
.about-photo .photo-info b{display:block;font-size:16px;color:var(--text);}
.about-photo .photo-info small{font-size:12px;color:var(--muted);line-height:1.6;display:block;margin-top:4px;}
.about-info h3{font-size:24px;color:var(--text);margin-bottom:14px;}
.about-motto{font-size:16px;line-height:1.8;color:var(--main);font-weight:600;margin-bottom:12px;}
.about-desc{font-size:14px;line-height:1.9;color:var(--text);margin-bottom:26px;}
.charm-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.charm{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px 16px;transition:transform .2s,box-shadow .2s;}
.charm:hover{transform:translateY(-3px);box-shadow:0 8px 20px rgba(0,0,0,.08);}
.charm-ico{font-size:26px;display:block;margin-bottom:8px;}
.charm b{font-size:15px;color:var(--text);display:block;margin-bottom:6px;}
.charm p{font-size:12px;color:var(--muted);line-height:1.6;margin:0;}
.about-quotes h3{font-size:18px;color:var(--text);text-align:center;margin-bottom:22px;}
.quotes-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;}
.quotes-row blockquote{margin:0;background:var(--card);border:1px solid var(--line);border-left:3px solid var(--main);border-radius:12px;padding:18px;font-size:13px;line-height:1.8;color:var(--text);}
.quotes-row footer{margin-top:10px;font-size:12px;color:var(--muted);}
@media(max-width:860px){
  .about-grid{grid-template-columns:1fr;gap:24px;}
  .about-photo .photo-box{max-width:260px;margin:0 auto;}
  .charm-grid{grid-template-columns:repeat(2,1fr);}
  .quotes-row{grid-template-columns:1fr;}
}

.about-photo .photo-box{overflow:hidden;padding:0;}
.photo-img{width:100%;height:100%;object-fit:cover;display:block;border-radius:18px;}

.charm small{display:block;font-size:11px;color:var(--muted);line-height:1.7;margin-top:6px;}

/* 快速收集 浮动大按钮 */
.qc-float{position:fixed;right:18px;bottom:84px;z-index:96;display:flex;align-items:center;gap:8px;padding:14px 22px;background:linear-gradient(135deg,#C97A3E,#a8652c);color:#fff;border-radius:40px;font-size:16px;font-weight:700;text-decoration:none;box-shadow:0 8px 24px rgba(0,0,0,.22);transition:.3s;letter-spacing:.5px;}
.qc-float:hover{transform:scale(1.06);box-shadow:0 10px 30px rgba(0,0,0,.28);}
.qc-float .qc-dot{width:10px;height:10px;border-radius:50%;background:#ffe08a;box-shadow:0 0 8px #ffe08a;}
@media (max-width:640px){.qc-float{bottom:84px;right:12px;padding:12px 18px;font-size:15px;}}