/* ============================================================
   立壹的travel — 晴空旅记 · 明快旅行风
   设计基调：云白底 / 晴空蓝主色 / 珊瑚·阳光点缀
   签名元素：登机牌式文章卡 + 护照印章徽章 + 航线纸飞机
   ============================================================ */

:root{
  --ink:#173A5E;          /* 主文字 */
  --ink2:#54749B;         /* 次级文字 */
  --ink3:#8FA9C4;         /* 弱文字 */
  --sky:#1E8FE0;          /* 主色 · 晴空蓝 */
  --sky-deep:#0F6FBE;
  --sky-soft:#E3F2FD;
  --coral:#FF6B5E;        /* 点缀 · 日落珊瑚 */
  --coral-soft:#FFECE8;
  --sun:#F5A700;          /* 点缀 · 阳光黄 */
  --sun-soft:#FFF3D6;
  --mint:#1FB98A;         /* 点缀 · 草地绿 */
  --mint-soft:#DFF7EE;
  --grape:#8A63F4;        /* 点缀 · 葡萄紫 */
  --grape-soft:#EFE9FF;
  --bg:#F3F9FF;           /* 云白底 */
  --bg2:#EAF4FE;
  --card:#FFFFFF;
  --line:#E1EDF8;
  --shadow:0 10px 30px rgba(23,58,94,.08);
  --shadow-lg:0 22px 50px rgba(23,58,94,.14);
  --r:18px;
  --font:"Segoe UI","Microsoft YaHei","PingFang SC",system-ui,-apple-system,sans-serif;
  --mono:Consolas,"Cascadia Code","JetBrains Mono",monospace;
  --serif:Georgia,"Times New Roman",serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
[hidden]{display:none!important}
a{color:var(--sky);text-decoration:none;transition:color .18s}
a:hover{color:var(--sky-deep)}
img{max-width:100%}
::selection{background:#BFE3FF}
:focus-visible{outline:3px solid #9CD2FF;outline-offset:2px;border-radius:6px}
button{font-family:var(--font)}

.container{max-width:1120px;margin:0 auto;padding:0 22px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:8px 16px;border-radius:0 0 10px 0;z-index:2000}
.skip-link:focus{left:0}
.page-loading{display:flex;flex-direction:column;align-items:center;gap:14px;padding:120px 0;color:var(--ink2)}
.spin{width:34px;height:34px;border-radius:50%;border:4px solid var(--sky-soft);border-top-color:var(--sky);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

/* ---------------- 顶部导航（悬浮玻璃舱盖） ---------------- */
#topbar{position:sticky;top:0;z-index:900;padding:10px 0 6px;background:linear-gradient(180deg,rgba(243,249,255,.9) 0%,rgba(243,249,255,0))}
.navbar{
  max-width:1080px;margin:0 auto;display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,.9);box-shadow:var(--shadow);
  border-radius:999px;padding:8px 10px 8px 18px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--ink);letter-spacing:.5px;white-space:nowrap}
.brand:hover{color:var(--ink)}
.brand .logo{width:36px;height:36px;border-radius:12px;background:linear-gradient(135deg,#35B4FF,#1E8FE0);display:grid;place-items:center;font-size:19px;box-shadow:0 6px 14px rgba(30,143,224,.35);flex:none}
.brand small{display:block;font-size:10.5px;font-weight:600;color:var(--ink2);letter-spacing:2px;line-height:1;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none;margin-left:auto}
.nav-links a{display:block;padding:8px 14px;border-radius:999px;color:var(--ink2);font-weight:600;font-size:14.5px}
.nav-links a:hover{color:var(--sky);background:var(--sky-soft)}
.nav-links a.active{color:var(--sky);background:var(--sky-soft)}
.nav-cta{margin-left:6px}
.btn-nav{padding:8px 18px;border-radius:999px;background:linear-gradient(135deg,#35B4FF,#1E8FE0);color:#fff!important;font-weight:700;box-shadow:0 6px 14px rgba(30,143,224,.3)}
.btn-nav:hover{filter:brightness(1.06);transform:translateY(-1px)}
.avatar-chip{display:flex;align-items:center;gap:8px;padding:5px 14px 5px 6px;border-radius:999px;border:1.5px solid var(--line);background:#fff;cursor:pointer;font-weight:600;color:var(--ink)}
.avatar-chip:hover{border-color:var(--sky)}
.avatar-chip .face{width:30px;height:30px;border-radius:50%;display:grid;place-items:center;font-size:16px;background:var(--sky-soft)}
.nav-toggle{display:none;margin-left:auto;border:0;background:none;font-size:22px;color:var(--ink);cursor:pointer;padding:6px 12px;border-radius:10px}
.nav-toggle:hover{background:var(--sky-soft)}

/* 用户下拉菜单 */
.user-menu{position:relative}
.user-drop{position:absolute;right:0;top:calc(100% + 10px);background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-lg);min-width:190px;padding:8px;display:flex;flex-direction:column;z-index:100}
.user-drop a,.user-drop button{text-align:left;border:0;background:none;font:inherit;padding:9px 14px;border-radius:10px;color:var(--ink);font-weight:600;cursor:pointer;font-size:14px}
.user-drop a:hover,.user-drop button:hover{background:var(--sky-soft);color:var(--sky)}
.user-drop .ud-head{padding:8px 14px 10px;border-bottom:1px solid var(--line);margin-bottom:6px}
.user-drop .ud-head b{display:block;font-size:15px}
.user-drop .ud-head span{font-size:12px;color:var(--ink2)}

/* 公告条 */
.notice-bar{max-width:1080px;margin:4px auto 0;padding:9px 18px;background:linear-gradient(90deg,var(--sun-soft),#FFEFD1);border:1px solid #FFE2A8;border-radius:14px;display:flex;gap:10px;align-items:center;font-size:14px;color:#8A6200;font-weight:600;transition:opacity .45s,transform .45s}
.notice-bar.hide{opacity:0;transform:translateY(-8px)}
.notice-bar button{margin-left:auto;border:0;background:none;font-size:18px;cursor:pointer;color:#C99B2E;line-height:1}

/* ---------------- 按钮 ---------------- */
.btn{display:inline-flex;align-items:center;gap:8px;border:0;cursor:pointer;font:inherit;font-weight:700;border-radius:999px;padding:12px 26px;font-size:15px;transition:transform .2s,box-shadow .2s,filter .2s;text-decoration:none}
.btn-primary{background:linear-gradient(135deg,#35B4FF,#1E8FE0);color:#fff;box-shadow:0 10px 22px rgba(30,143,224,.32)}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.05);color:#fff}
.btn-coral{background:linear-gradient(135deg,#FF8A72,#FF6B5E);color:#fff;box-shadow:0 10px 22px rgba(255,107,94,.3)}
.btn-coral:hover{transform:translateY(-2px);color:#fff}
.btn-ghost{background:#fff;color:var(--ink);border:2px solid var(--line)}
.btn-ghost:hover{border-color:var(--sky);color:var(--sky);transform:translateY(-2px)}
.btn-sm{padding:7px 16px;font-size:13.5px}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none!important}
.btn-sun{background:linear-gradient(135deg,#FFC53D,#F5A700);color:#5C4300;box-shadow:0 10px 22px rgba(245,167,0,.28)}

/* ---------------- HERO：晴空停机坪 ---------------- */
.hero{position:relative;padding:64px 0 90px;overflow:hidden;
  background:linear-gradient(180deg,#CBE9FF 0%,#E7F5FF 52%,#FFF3E0 100%);
  border-radius:0 0 42px 42px;
}
.sun{position:absolute;top:-60px;right:8%;width:190px;height:190px;border-radius:50%;
  background:radial-gradient(circle,#FFE38A 0%,#FFD34D 45%,rgba(255,211,77,0) 72%);
  animation:sunPulse 5s ease-in-out infinite}
@keyframes sunPulse{0%,100%{transform:scale(1)}50%{transform:scale(1.06)}}
.cloud{position:absolute;background:rgba(255,255,255,.9);border-radius:999px;filter:blur(2px);opacity:.85}
.cloud::before,.cloud::after{content:"";position:absolute;background:inherit;border-radius:50%}
.c1{width:130px;height:34px;top:90px;left:6%;animation:drift 26s linear infinite}
.c1::before{width:52px;height:52px;top:-24px;left:18px}
.c1::after{width:38px;height:38px;top:-16px;left:62px}
.c2{width:100px;height:28px;top:200px;left:58%;animation:drift 34s linear infinite reverse}
.c2::before{width:40px;height:40px;top:-18px;left:16px}
.c2::after{width:30px;height:30px;top:-12px;left:50px}
.c3{width:70px;height:20px;top:60px;left:36%;opacity:.6;animation:drift 40s linear infinite}
.c3::before{width:28px;height:28px;top:-12px;left:12px}
.c3::after{width:20px;height:20px;top:-8px;left:36px}
@keyframes drift{0%{transform:translateX(0)}50%{transform:translateX(60px)}100%{transform:translateX(0)}}
.flight-path{position:absolute;left:0;right:0;top:54%;width:100%;height:120px;pointer-events:none;opacity:.9}
.hero-inner{position:relative;text-align:center;max-width:820px;margin:0 auto;padding:0 22px;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:#fff;border:1.5px dashed var(--sky);color:var(--sky-deep);font-weight:700;font-size:13.5px;padding:7px 18px;border-radius:999px;box-shadow:var(--shadow);letter-spacing:1px}
.hero h1{font-size:clamp(34px,6vw,58px);font-weight:900;line-height:1.22;margin:22px 0 6px;letter-spacing:1px}
.hero h1 .grad{background:linear-gradient(120deg,#1E8FE0,#FF6B5E 70%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .sub{color:var(--ink2);font-size:16.5px;max-width:620px;margin:16px auto 30px}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-tags{margin-top:26px;display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.hero-tags span{background:rgba(255,255,255,.75);border:1px solid #fff;color:var(--ink2);font-size:12.5px;font-weight:600;padding:5px 14px;border-radius:999px;backdrop-filter:blur(4px)}
.plane-emoji{display:inline-block;animation:bob 3s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0) rotate(0)}50%{transform:translateY(-7px) rotate(3deg)}}

/* 印章式徽章 */
.stamp{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:800;letter-spacing:1px;transform:rotate(-2deg);border:2px solid currentColor;background:#fff}
.stamp.sun-c{color:var(--sun)}
.st-sky{color:var(--sky)}.st-coral{color:var(--coral)}.st-mint{color:var(--mint)}.st-sun{color:var(--sun)}.st-grape{color:var(--grape)}
.stamp.flat{transform:none;background:var(--sky-soft);border-color:transparent;color:var(--sky)}

/* ---------------- 通用分区 ---------------- */
section{padding:64px 0}
.sec-head{margin-bottom:34px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--serif);font-style:italic;font-size:13px;letter-spacing:3px;color:var(--sky);font-weight:600;text-transform:uppercase}
.eyebrow::before{content:"✈";font-style:normal;font-size:14px}
.sec-head h2{font-size:clamp(24px,3.4vw,34px);font-weight:900;margin:8px 0 6px;letter-spacing:.5px}
.sec-head p{color:var(--ink2);max-width:640px}
.sec-head.center{text-align:center}
.sec-head.center p{margin:0 auto}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap}
.more-link{font-weight:700;font-size:14px;white-space:nowrap}

/* ---------------- 登机牌文章卡（签名元素） ---------------- */
.bpass-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.bpass{
  position:relative;display:flex;flex-direction:column;background:var(--card);
  border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden;
  transition:transform .28s ease,box-shadow .28s ease;
}
.bpass:hover{transform:translateY(-6px) rotate(-.4deg);box-shadow:var(--shadow-lg)}
.bpass-top{padding:20px 22px 14px;flex:1;display:flex;flex-direction:column;gap:10px}
.bp-route{display:flex;align-items:center;justify-content:space-between;font-family:var(--serif);font-size:12px;letter-spacing:2px;color:var(--ink3)}
.bp-route .pts{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--ink2);font-size:13px}
.bp-route .pts i{font-style:normal;color:var(--sky);font-size:11px}
.bp-cover{font-size:34px;line-height:1;transform:rotate(-6deg);align-self:flex-start;filter:drop-shadow(0 4px 6px rgba(23,58,94,.15))}
.bpass h3{font-size:18.5px;font-weight:800;line-height:1.45}
.bpass h3 a{color:var(--ink)}
.bpass h3 a:hover{color:var(--sky)}
.bpass .sum{color:var(--ink2);font-size:14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.bpass-cut{position:relative;border-top:2px dashed var(--line);margin:0 0}
.bpass-cut::before,.bpass-cut::after{content:"";position:absolute;top:-11px;width:22px;height:22px;border-radius:50%;background:var(--bg);border:1px solid var(--line)}
.bpass-cut::before{left:-11px;border-left-color:transparent}
.bpass-cut::after{right:-11px;border-right-color:transparent}
.bpass-foot{display:flex;align-items:center;gap:14px;padding:12px 22px;background:#FBFDFF}
.bpass-foot .meta{display:flex;gap:12px;color:var(--ink3);font-size:12.5px;font-weight:600;white-space:nowrap}
.bpass-foot .meta span{white-space:nowrap}
.bpass-foot .barcode{margin-left:auto;width:58px;height:24px;background:repeating-linear-gradient(90deg,var(--ink) 0 2px,transparent 2px 5px);opacity:.75;border-radius:2px}
.bpass-foot .go{color:var(--sky);font-weight:800;font-size:13.5px;white-space:nowrap}
.bpass-foot .go:hover{color:var(--sky-deep)}
.bpass-cat{position:absolute;top:16px;right:16px}

/* 分类色徽章 */
.cat-chip{display:inline-flex;align-items:center;gap:5px;font-size:12px;font-weight:800;padding:4px 12px;border-radius:999px}
.cc-sky{background:var(--sky-soft);color:var(--sky-deep)}
.cc-coral{background:var(--coral-soft);color:#D6402F}
.cc-mint{background:var(--mint-soft);color:#0E8F68}
.cc-sun{background:var(--sun-soft);color:#9A6E00}
.cc-grape{background:var(--grape-soft);color:#6A45D8}

/* ---------------- 数据戳 ---------------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;max-width:900px;margin:38px auto 0}
.stat-stamp{background:rgba(255,255,255,.85);backdrop-filter:blur(6px);border:1px solid #fff;border-radius:18px;padding:16px 10px;text-align:center;box-shadow:var(--shadow)}
.stat-stamp .num{font-size:24px;font-weight:900;color:var(--sky-deep)}
.stat-stamp .lbl{font-size:12.5px;color:var(--ink2);font-weight:600;margin-top:2px}

/* ---------------- 卡片 ---------------- */
.card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:26px;transition:transform .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card .ic{width:52px;height:52px;border-radius:16px;display:grid;place-items:center;font-size:26px;margin-bottom:14px}
.card h3{font-size:18px;font-weight:800;margin-bottom:8px}
.card p{color:var(--ink2);font-size:14.5px}
.card .more{display:inline-block;margin-top:14px;font-weight:800;font-size:13.5px;color:var(--sky)}
.ic-sky{background:var(--sky-soft)}.ic-coral{background:var(--coral-soft)}.ic-sun{background:var(--sun-soft)}.ic-mint{background:var(--mint-soft)}.ic-grape{background:var(--grape-soft)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}

/* ---------------- 航线时间轴 ---------------- */
.timeline{position:relative;padding-left:56px}
.timeline::before{content:"";position:absolute;left:19px;top:8px;bottom:8px;border-left:3px dashed #B9DFF9}
.tl-item{position:relative;padding:0 0 40px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{position:absolute;left:-56px;top:0;width:42px;height:42px;border-radius:50%;background:#fff;border:3px solid var(--sky);display:grid;place-items:center;font-size:17px;box-shadow:0 0 0 6px var(--bg),0 6px 14px rgba(30,143,224,.25);z-index:1}
.tl-num{font-family:var(--serif);font-style:italic;letter-spacing:3px;font-size:12.5px;color:var(--sky);font-weight:700}
.tl-item h3{font-size:20px;font-weight:800;margin:4px 0 8px}
.tl-item>p{color:var(--ink2);font-size:14.5px;max-width:720px}
.tl-card{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:24px 26px}
.tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.tag{display:inline-flex;align-items:center;background:var(--bg2);color:var(--ink2);font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px}
.tag.purple{background:var(--grape-soft);color:#6A45D8}
.tag.cyan{background:var(--sky-soft);color:var(--sky-deep)}
.tag.gold{background:var(--sun-soft);color:#9A6E00}
.tag.green{background:var(--mint-soft);color:#0E8F68}
.tag.red{background:var(--coral-soft);color:#D6402F}
a.tag:hover{color:var(--sky)}

/* ---------------- 代码块（登机牌存根风） ---------------- */
.code-block{position:relative;background:#122C4A;color:#D8E9FA;border-radius:16px;padding:20px 22px;font-family:var(--mono);font-size:13.5px;line-height:1.8;overflow-x:auto;margin:14px 0;white-space:pre-wrap;word-break:break-word}
.code-block .cmt{color:#6E93BC}
.prose .code-block{margin:20px 0}
.prose pre{background:#122C4A;color:#D8E9FA;border-radius:16px;padding:20px 22px;font-family:var(--mono);font-size:13.5px;line-height:1.8;overflow-x:auto;margin:20px 0}
.prose pre code{background:none;padding:0;color:inherit;font-family:var(--mono)}
.prose code{background:var(--sky-soft);color:var(--sky-deep);padding:2px 7px;border-radius:6px;font-family:var(--mono);font-size:.88em}

/* ---------------- 步骤票根（方法论页） ---------------- */
.step-ticket{display:flex;gap:20px;background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:24px;margin-bottom:18px}
.step-no{flex:none;width:66px;height:66px;border-radius:18px;display:grid;place-items:center;font-weight:900;font-size:15px;color:#fff;background:linear-gradient(135deg,#35B4FF,#1E8FE0);box-shadow:0 8px 18px rgba(30,143,224,.3);font-family:var(--serif);font-style:italic}
.step-ticket:nth-child(2) .step-no{background:linear-gradient(135deg,#FF8A72,#FF6B5E);box-shadow:0 8px 18px rgba(255,107,94,.3)}
.step-ticket:nth-child(3) .step-no{background:linear-gradient(135deg,#FFC53D,#F5A700);box-shadow:0 8px 18px rgba(245,167,0,.3)}
.step-ticket:nth-child(4) .step-no{background:linear-gradient(135deg,#37D6A0,#1FB98A);box-shadow:0 8px 18px rgba(31,185,138,.3)}
.step-ticket:nth-child(5) .step-no{background:linear-gradient(135deg,#A78BFA,#8A63F4);box-shadow:0 8px 18px rgba(138,99,244,.3)}
.step-ticket:nth-child(6) .step-no{background:linear-gradient(135deg,#54749B,#173A5E);box-shadow:0 8px 18px rgba(23,58,94,.3)}
.step-ticket h4{font-size:17.5px;font-weight:800;margin-bottom:6px}
.step-ticket p{color:var(--ink2);font-size:14.5px}
.step-ticket b{color:var(--sky-deep)}

/* ---------------- FAQ 手风琴 ---------------- */
details.faq-item{background:var(--card);border-radius:16px;box-shadow:var(--shadow);padding:0;margin-bottom:14px;overflow:hidden}
details.faq-item summary{cursor:pointer;list-style:none;padding:18px 22px;font-weight:800;font-size:15.5px;display:flex;align-items:center;gap:10px}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary::after{content:"▾";margin-left:auto;color:var(--sky);transition:transform .2s}
details.faq-item[open] summary::after{transform:rotate(180deg)}
details.faq-item .faq-body{padding:0 22px 20px;color:var(--ink2);font-size:14.5px}
.faq-body b{color:var(--ink)}
.faq-body code{background:var(--sky-soft);color:var(--sky-deep);padding:1px 6px;border-radius:6px;font-family:var(--mono);font-size:.88em}

/* ---------------- 工具行 ---------------- */
.tool-row{display:flex;gap:18px;background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:20px 24px;margin-bottom:14px;transition:transform .2s}
.tool-row:hover{transform:translateX(4px)}
.tool-row .t-ic{flex:none;width:50px;height:50px;border-radius:14px;background:var(--sky-soft);display:grid;place-items:center;font-size:24px}
.tool-row h4{font-size:16px;font-weight:800}
.tool-row h4 .src{font-size:11px;font-weight:800;color:var(--sun);background:var(--sun-soft);padding:2px 9px;border-radius:999px;margin-left:8px;vertical-align:2px;letter-spacing:1px}
.tool-row p{color:var(--ink2);font-size:14px;margin-top:4px}
.tool-row .why{color:var(--sky-deep);font-size:13.5px;margin-top:6px}
.group-title{font-size:20px;font-weight:900;margin:38px 0 14px;display:flex;align-items:center;gap:10px}
.group-title:first-child{margin-top:0}

/* ---------------- 文章正文 ---------------- */
.prose{font-size:16px;color:#28496E;max-width:760px;margin:0 auto}
.prose h2{font-size:22px;font-weight:900;margin:34px 0 12px;color:var(--ink);padding-left:14px;border-left:5px solid var(--sky);border-radius:2px}
.prose h3{font-size:18px;font-weight:800;margin:26px 0 10px;color:var(--ink)}
.prose h4{font-size:16px;font-weight:800;margin:20px 0 8px}
.prose p{margin:12px 0}
.prose ul,.prose ol{margin:12px 0 12px 24px}
.prose li{margin:6px 0}
.prose blockquote{margin:18px 0;padding:14px 20px;background:var(--sun-soft);border-radius:4px 14px 14px 4px;border-left:4px solid var(--sun);color:#7A5A00;font-weight:600}
.prose a{border-bottom:1.5px dashed var(--sky)}
.prose img{border-radius:14px;margin:10px 0}
.prose table{border-collapse:collapse;margin:16px 0;width:100%;font-size:14px}
.prose th,.prose td{border:1px solid var(--line);padding:8px 12px;text-align:left}
.prose th{background:var(--bg2)}
.prose hr{border:0;border-top:2px dashed var(--line);margin:26px 0}

/* 文章页头票据 */
.article-head{background:var(--card);border-radius:24px;box-shadow:var(--shadow);padding:34px 38px;position:relative;overflow:hidden}
.article-head::before{content:"";position:absolute;top:0;left:0;right:0;height:8px;background:linear-gradient(90deg,var(--sky),var(--coral),var(--sun),var(--mint),var(--grape))}
.article-head .meta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;color:var(--ink3);font-size:13.5px;font-weight:600;margin-top:14px}
.article-title{font-size:clamp(24px,3.6vw,34px);font-weight:900;line-height:1.35;margin:12px 0 4px}
.author-chip{display:inline-flex;align-items:center;gap:7px}
.author-chip .face{width:26px;height:26px;border-radius:50%;background:var(--sky-soft);display:grid;place-items:center;font-size:14px}

/* 点赞 & 评论 */
.action-row{display:flex;gap:12px;align-items:center;justify-content:center;margin:34px 0 10px}
.like-btn{display:inline-flex;align-items:center;gap:8px;border:2px solid var(--coral);background:#fff;color:var(--coral);font-weight:800;font-size:15px;padding:10px 26px;border-radius:999px;cursor:pointer;transition:transform .2s,background .2s}
.like-btn:hover{transform:scale(1.05)}
.like-btn.liked{background:var(--coral);color:#fff;box-shadow:0 8px 18px rgba(255,107,94,.35)}
.comment-box{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:26px;margin-top:30px}
.comment-item{display:flex;gap:12px;padding:16px 0;border-bottom:1px dashed var(--line)}
.comment-item:last-child{border-bottom:0}
.comment-item .face{flex:none;width:40px;height:40px;border-radius:50%;background:var(--sky-soft);display:grid;place-items:center;font-size:19px}
.comment-item .who{font-weight:800;font-size:14px}
.comment-item .who .role{font-size:10.5px;color:#fff;background:var(--grape);border-radius:999px;padding:1px 8px;margin-left:6px;vertical-align:1px}
.comment-item .when{color:var(--ink3);font-size:12px;margin-left:8px;font-weight:600}
.comment-item .txt{color:#3D5C7E;font-size:14.5px;margin-top:4px;white-space:pre-wrap;word-break:break-word}
textarea.input,input.input,select.input{width:100%;border:2px solid var(--line);border-radius:14px;padding:12px 16px;font:inherit;font-size:14.5px;color:var(--ink);background:#FBFDFF;transition:border-color .2s}
textarea.input:focus,input.input:focus,select.input:focus{border-color:var(--sky);outline:none;background:#fff}
textarea.input{resize:vertical;min-height:96px}
.form-row{margin-bottom:14px}
.form-label{display:block;font-weight:800;font-size:13.5px;margin-bottom:6px;color:var(--ink)}

/* ---------------- 页面头（内页） ---------------- */
.page-head{padding:44px 0 10px;text-align:center}
.page-head h1{font-size:clamp(28px,4.5vw,40px);font-weight:900;margin:10px 0 8px}
.page-head .crumbs{font-size:13px;color:var(--ink3);font-weight:600}
.page-head .crumbs a{color:var(--ink3)}
.page-head .crumbs a:hover{color:var(--sky)}
.page-head p{color:var(--ink2);max-width:640px;margin:0 auto}
.page-head .head-search{display:flex;gap:10px;max-width:520px;margin:22px auto 0}
.filter-row{display:flex;gap:10px;flex-wrap:wrap;justify-content:center;margin:24px 0 34px}
.filter-chip{border:2px solid var(--line);background:#fff;border-radius:999px;padding:7px 18px;font-weight:700;font-size:13.5px;color:var(--ink2);cursor:pointer;transition:all .2s}
.filter-chip:hover{border-color:var(--sky);color:var(--sky)}
.filter-chip.on{background:linear-gradient(135deg,#35B4FF,#1E8FE0);border-color:transparent;color:#fff;box-shadow:0 6px 14px rgba(30,143,224,.3)}

/* ---------------- 论坛 ---------------- */
.board-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:40px}
.board-card{position:relative;background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:22px;display:block;color:var(--ink);overflow:hidden;transition:transform .22s,box-shadow .22s}
.board-card::after{content:"";position:absolute;right:-26px;top:-26px;width:90px;height:90px;border-radius:50%;opacity:.14}
.board-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);color:var(--ink)}
.bc-sky::after{background:var(--sky)}.bc-coral::after{background:var(--coral)}.bc-gold::after{background:var(--sun)}.bc-mint::after{background:var(--mint)}.bc-grape::after{background:var(--grape)}
.board-card .b-ic{width:50px;height:50px;border-radius:15px;display:grid;place-items:center;font-size:25px;margin-bottom:12px}
.board-card h3{font-size:17px;font-weight:800}
.board-card p{color:var(--ink2);font-size:13.5px;margin-top:4px}
.board-card .b-count{margin-top:12px;font-size:12.5px;font-weight:700;color:var(--ink3)}
.thread-list{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);overflow:hidden}
.thread-row{display:flex;align-items:center;gap:14px;padding:16px 22px;border-bottom:1px dashed var(--line);transition:background .15s}
.thread-row:last-child{border-bottom:0}
.thread-row:hover{background:#FAFDFF}
.thread-row .face{flex:none;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-size:20px;background:var(--sky-soft)}
.thread-row .t-main{flex:1;min-width:0}
.thread-row .t-title{font-weight:800;font-size:15.5px;color:var(--ink);display:block;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.thread-row .t-title:hover{color:var(--sky)}
.thread-row .t-sub{font-size:12.5px;color:var(--ink3);margin-top:2px;display:flex;gap:10px;flex-wrap:wrap}
.thread-row .t-num{flex:none;text-align:center;min-width:52px}
.thread-row .t-num b{display:block;font-size:16px;color:var(--ink2)}
.thread-row .t-num span{font-size:11px;color:var(--ink3)}
.thread-row .t-num.hot b{color:var(--coral)}
.t-badge{display:inline-flex;align-items:center;font-size:11px;font-weight:800;padding:1px 9px;border-radius:999px;vertical-align:2px}
.tb-pin{background:var(--sun-soft);color:#9A6E00}
.tb-lock{background:var(--bg2);color:var(--ink2)}
.empty{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:56px 20px;text-align:center;color:var(--ink2)}
.empty .e-ic{font-size:44px;margin-bottom:10px}

/* 帖子详情 */
.thread-head{background:var(--card);border-radius:24px;box-shadow:var(--shadow);padding:30px 34px;margin-bottom:22px}
.reply-item{display:flex;gap:14px;background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:20px 24px;margin-bottom:14px}
.reply-item .face{flex:none;width:44px;height:44px;border-radius:50%;background:var(--sky-soft);display:grid;place-items:center;font-size:21px}
.reply-item .r-head{display:flex;align-items:center;gap:8px;font-size:14px}
.reply-item .r-head b{font-weight:800}
.reply-item .floor{margin-left:auto;font-family:var(--serif);font-style:italic;color:var(--ink3);font-size:12.5px}
.reply-item .r-body{margin-top:6px;color:#3D5C7E;white-space:pre-wrap;word-break:break-word;font-size:14.5px}
.reply-editor{background:var(--card);border-radius:var(--r);box-shadow:var(--shadow);padding:24px;margin-top:24px}

/* 头像选择器 */
.avatar-pick{display:flex;gap:8px;flex-wrap:wrap}
.avatar-pick button{width:44px;height:44px;border-radius:50%;border:2px solid var(--line);background:#fff;font-size:20px;cursor:pointer;transition:all .15s}
.avatar-pick button:hover{border-color:var(--sky);transform:scale(1.1)}
.avatar-pick button.on{border-color:var(--sky);background:var(--sky-soft);box-shadow:0 4px 10px rgba(30,143,224,.25)}

/* 登录 / 注册 */
.auth-wrap{max-width:440px;margin:40px auto 60px}
.auth-card{background:var(--card);border-radius:24px;box-shadow:var(--shadow-lg);padding:34px;position:relative;overflow:hidden}
.auth-card::before{content:"";position:absolute;top:0;left:0;right:0;height:8px;background:linear-gradient(90deg,var(--sky),var(--coral),var(--sun))}
.auth-card h2{font-size:24px;font-weight:900;margin-bottom:4px}
.auth-card .sub{color:var(--ink2);font-size:14px;margin-bottom:22px}
.auth-switch{text-align:center;margin-top:18px;font-size:14px;color:var(--ink2)}
.form-err{background:var(--coral-soft);color:#C03322;font-size:13.5px;font-weight:700;border-radius:12px;padding:10px 14px;margin-bottom:14px}

/* ---------------- CTA 横幅 ---------------- */
.cta-band{position:relative;overflow:hidden;background:linear-gradient(120deg,#1E8FE0,#35B4FF 55%,#5CC6FF);border-radius:28px;padding:54px 30px;text-align:center;color:#fff;box-shadow:0 20px 44px rgba(30,143,224,.35)}
.cta-band h2{font-size:clamp(24px,3.6vw,34px);font-weight:900}
.cta-band p{opacity:.92;margin:12px auto 26px;max-width:520px}
.cta-band .btn-ghost{background:#fff;border-color:#fff;color:var(--sky-deep)}
.cta-band .btn-ghost:hover{transform:translateY(-2px)}
.cta-plane{position:absolute;font-size:30px;opacity:.5;animation:flyby 9s linear infinite}
@keyframes flyby{0%{transform:translateX(-60px) translateY(0) rotate(8deg)}100%{transform:translateX(110vw) translateY(-30px) rotate(8deg)}}

/* ---------------- 页脚 ---------------- */
#footer{margin-top:60px;background:#fff;border-top:1px solid var(--line);position:relative}
#footer::before{content:"✈ · · · · ✈ · · · · ✈ · · · · ✈ · · · · ✈ · · · · ✈ · · · · ✈ · · · · ✈ · · · · ✈ · · · · ✈ · · · · ✈";position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--bg);padding:0 18px;color:#B9D9F5;letter-spacing:2px;font-size:13px;white-space:nowrap;max-width:100%;overflow:hidden}
.footer-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;padding:42px 0 26px}
.footer-grid h5{font-size:14.5px;font-weight:900;margin-bottom:12px}
.footer-grid p,.footer-grid li{color:var(--ink2);font-size:13.5px}
.footer-grid ul{list-style:none}
.footer-grid li{margin:7px 0}
.footer-grid a{color:var(--ink2)}
.footer-grid a:hover{color:var(--sky)}
.footer-bottom{border-top:1px dashed var(--line);padding:18px 0 24px;display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;color:var(--ink3);font-size:12.5px;font-weight:600}
.svc-link{color:var(--ink2);font-weight:700}
.svc-link:hover{color:var(--sky)}
.footer-bottom .made{color:var(--sky-deep)}

/* ---------------- 小助手 ---------------- */
.chat-fab{position:fixed;right:22px;bottom:22px;z-index:950;width:58px;height:58px;border-radius:50%;border:0;background:linear-gradient(135deg,#35B4FF,#1E8FE0);color:#fff;font-size:24px;cursor:pointer;box-shadow:0 12px 26px rgba(30,143,224,.4);transition:transform .2s}
.chat-fab:hover{transform:scale(1.1) rotate(-8deg)}
.chat-dot{position:absolute;top:4px;right:4px;width:11px;height:11px;border-radius:50%;background:var(--coral);border:2px solid #fff;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{transform:scale(1)}50%{transform:scale(1.3)}}
.chat-panel{position:fixed;right:22px;bottom:92px;z-index:950;width:320px;max-width:calc(100vw - 44px);background:#fff;border-radius:20px;box-shadow:var(--shadow-lg);overflow:hidden;display:flex;flex-direction:column}
.chat-head{display:flex;align-items:center;padding:14px 16px;background:linear-gradient(135deg,#35B4FF,#1E8FE0);color:#fff}
.chat-head-t b{display:block;font-size:14.5px}
.chat-head-t span{font-size:11px;opacity:.85}
.chat-x{margin-left:auto;border:0;background:none;color:#fff;font-size:22px;cursor:pointer;line-height:1}
.chat-body{padding:16px;height:260px;overflow-y:auto;background:#FAFDFF;display:flex;flex-direction:column;gap:10px}
.chat-msg{max-width:82%;padding:9px 14px;border-radius:14px;font-size:13.5px;line-height:1.6;white-space:pre-wrap;word-break:break-word}
.chat-msg.bot{background:var(--sky-soft);color:var(--sky-deep);border-bottom-left-radius:4px;align-self:flex-start}
.chat-msg.me{background:linear-gradient(135deg,#35B4FF,#1E8FE0);color:#fff;border-bottom-right-radius:4px;align-self:flex-end}
.chat-bar{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.chat-bar input{flex:1;border:2px solid var(--line);border-radius:999px;padding:9px 16px;font:inherit;font-size:13.5px}
.chat-bar input:focus{outline:none;border-color:var(--sky)}
.chat-bar button{border:0;border-radius:999px;background:var(--sky);color:#fff;font-weight:800;padding:0 20px;cursor:pointer}
.chat-bar button:hover{background:var(--sky-deep)}

/* ---------------- Toast ---------------- */
#toast-wrap{position:fixed;top:18px;left:50%;transform:translateX(-50%);z-index:2000;display:flex;flex-direction:column;gap:8px;align-items:center}
.toast{background:var(--ink);color:#fff;padding:11px 22px;border-radius:999px;font-size:14px;font-weight:600;box-shadow:var(--shadow-lg);animation:toastIn .25s ease;max-width:88vw}
.toast.err{background:#C0392B}
.toast.ok{background:#1F9D74}
@keyframes toastIn{from{opacity:0;transform:translateY(-14px)}to{opacity:1;transform:translateY(0)}}

/* ---------------- 管理后台 ---------------- */
.adm{display:flex;min-height:100vh}
.adm-side{flex:none;width:230px;background:#fff;border-right:1px solid var(--line);padding:22px 14px;display:flex;flex-direction:column;gap:4px;position:sticky;top:0;height:100vh;overflow-y:auto}
.adm-side .brand{margin:0 8px 18px}
.adm-side a{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:12px;color:var(--ink2);font-weight:700;font-size:14px}
.adm-side a:hover{background:var(--sky-soft);color:var(--sky)}
.adm-side a.on{background:linear-gradient(135deg,#35B4FF,#1E8FE0);color:#fff;box-shadow:0 6px 14px rgba(30,143,224,.3)}
.adm-side .side-gap{flex:1}
.adm-main{flex:1;padding:26px 30px;min-width:0}
.adm-title{font-size:23px;font-weight:900;margin-bottom:4px}
.adm-sub{color:var(--ink2);font-size:13.5px;margin-bottom:24px}
.adm-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:26px}
.adm-stat{background:#fff;border-radius:18px;box-shadow:var(--shadow);padding:20px 22px;display:flex;align-items:center;gap:16px}
.adm-stat .a-ic{width:48px;height:48px;border-radius:14px;display:grid;place-items:center;font-size:23px}
.adm-stat .num{font-size:23px;font-weight:900;line-height:1.2}
.adm-stat .lbl{font-size:12.5px;color:var(--ink2);font-weight:600}
.adm-panel{background:#fff;border-radius:18px;box-shadow:var(--shadow);padding:22px 24px;margin-bottom:22px}
.adm-panel h3{font-size:16.5px;font-weight:800;margin-bottom:14px}
.adm-table{width:100%;border-collapse:collapse;font-size:13.5px}
.adm-table th{text-align:left;color:var(--ink3);font-size:12px;letter-spacing:1px;padding:8px 10px;border-bottom:2px solid var(--line);white-space:nowrap}
.adm-table td{padding:11px 10px;border-bottom:1px dashed var(--line);vertical-align:middle}
.adm-table tr:hover td{background:#FAFDFF}
.adm-table .t-actions{display:flex;gap:6px;flex-wrap:wrap}
.mini-btn{border:1.5px solid var(--line);background:#fff;border-radius:9px;padding:5px 11px;font-size:12.5px;font-weight:700;color:var(--ink2);cursor:pointer;transition:all .15s;white-space:nowrap}
.mini-btn:hover{border-color:var(--sky);color:var(--sky)}
.mini-btn.danger:hover{border-color:var(--coral);color:var(--coral)}
.mini-btn.on{background:var(--sky);border-color:var(--sky);color:#fff}
.badge{display:inline-flex;font-size:11.5px;font-weight:800;padding:3px 10px;border-radius:999px}
.bg-green{background:var(--mint-soft);color:#0E8F68}
.bg-gray{background:var(--bg2);color:var(--ink2)}
.bg-red{background:var(--coral-soft);color:#D6402F}
.bg-blue{background:var(--sky-soft);color:var(--sky-deep)}
.bg-gold{background:var(--sun-soft);color:#9A6E00}
.bg-grape{background:var(--grape-soft);color:#6A45D8}
.chart{display:flex;align-items:flex-end;gap:6px;height:150px;padding-top:10px}
.chart .bar-wrap{flex:1;display:flex;flex-direction:column;align-items:center;gap:6px;height:100%;justify-content:flex-end}
.chart .bar{width:100%;max-width:34px;border-radius:8px 8px 4px 4px;background:linear-gradient(180deg,#5CC6FF,#1E8FE0);min-height:3px;transition:height .4s}
.chart .bar-lbl{font-size:10px;color:var(--ink3);white-space:nowrap}
.adm-form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.pagination{display:flex;gap:6px;justify-content:center;margin:26px 0;flex-wrap:wrap}
.pagination button{min-width:38px;height:38px;border-radius:12px;border:2px solid var(--line);background:#fff;font-weight:700;color:var(--ink2);cursor:pointer}
.pagination button:hover{border-color:var(--sky);color:var(--sky)}
.pagination button.on{background:var(--sky);border-color:var(--sky);color:#fff}
.pagination button[disabled]{opacity:.4;cursor:not-allowed}
.modal-mask{position:fixed;inset:0;background:rgba(23,58,94,.45);z-index:1500;display:grid;place-items:center;padding:20px}
.modal{background:#fff;border-radius:22px;box-shadow:var(--shadow-lg);padding:28px;width:100%;max-width:520px;max-height:88vh;overflow-y:auto}
.modal h3{font-size:19px;font-weight:900;margin-bottom:18px}
.modal-actions{display:flex;gap:10px;justify-content:flex-end;margin-top:20px}

/* ---------------- 响应式 ---------------- */
@media (max-width:960px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .bpass-grid,.board-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .adm-cards{grid-template-columns:repeat(2,1fr)}
  .adm{flex-direction:column}
  .adm-side{width:100%;height:auto;position:static;flex-direction:row;flex-wrap:wrap;overflow:visible;padding:12px}
  .adm-side .brand{margin:0 10px 0 0}
  .adm-side a.on{box-shadow:none}
  .side-gap{display:none}
}
@media (max-width:640px){
  .nav-links{position:absolute;top:calc(100% + 8px);left:12px;right:12px;background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-lg);flex-direction:column;align-items:stretch;padding:10px;display:none}
  .nav-links.open{display:flex}
  .nav-links a{padding:12px 16px}
  .nav-toggle{display:block}
  .brand small{display:none}
  .grid-4,.grid-3,.grid-2,.bpass-grid,.board-grid{grid-template-columns:1fr}
  .bpass-grid{gap:16px}
  section{padding:44px 0}
  .hero{padding:44px 0 60px;border-radius:0 0 30px 30px}
  .step-ticket{flex-direction:column;gap:12px}
  .article-head,.thread-head{padding:24px 20px}
  .thread-row .t-num{display:none}
  .footer-grid{gap:10px;padding:28px 0 18px}
  .footer-grid h5{font-size:12.5px;margin-bottom:8px;letter-spacing:0}
  .footer-grid li{margin:4px 0}
  .footer-grid p,.footer-grid li,.footer-grid a{font-size:11.5px;line-height:1.6;letter-spacing:0}
  .footer-grid li{word-break:break-all}
  .footer-bottom{justify-content:center;text-align:center;gap:4px 14px;padding:14px 0 18px;font-size:11.5px}
  .adm-main{padding:18px 14px}
  .adm-form-grid{grid-template-columns:1fr}
  .timeline{padding-left:46px}
  .timeline::before{left:16px}
  .tl-dot{left:-46px;width:36px;height:36px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;animation-iteration-count:1!important;transition-duration:.001s!important}
  html{scroll-behavior:auto}
}