/* ==========================================================================
   防红跳转系统 - 商务风格样式表
   设计基调：深蓝主色 / 白底卡片 / 细边框 / 克制的阴影 / 高信息密度
   无外部依赖，无粒子动画
   ========================================================================== */

:root{
  --brand:#1d4ed8;
  --brand-dark:#1e3a8a;
  --brand-light:#3b82f6;
  --brand-soft:#eff4ff;
  --ink:#0f172a;
  --ink-2:#334155;
  --ink-3:#64748b;
  --ink-4:#94a3b8;
  --line:#e2e8f0;
  --line-2:#cbd5e1;
  --bg:#f5f7fa;
  --white:#fff;
  --ok:#059669;
  --ok-soft:#ecfdf5;
  --warn:#d97706;
  --warn-soft:#fffbeb;
  --err:#dc2626;
  --err-soft:#fef2f2;
  --info:#0369a1;
  --info-soft:#f0f9ff;
  --radius:8px;
  --radius-lg:12px;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 1px 3px rgba(15,23,42,.06);
  --shadow-md:0 4px 12px rgba(15,23,42,.06),0 2px 4px rgba(15,23,42,.04);
  --shadow-lg:0 12px 32px rgba(15,23,42,.10);
  --sidebar-w:236px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:14px;line-height:1.65;color:var(--ink-2);background:var(--bg);-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .15s}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);font-weight:600;line-height:1.35}
h1{font-size:26px}h2{font-size:20px}h3{font-size:16px}h4{font-size:15px}
p{margin:0 0 10px}
ul,ol{margin:0;padding-left:20px}
code,kbd{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;background:#f1f5f9;border:1px solid var(--line);border-radius:4px;padding:1px 5px;color:var(--ink)}
hr{border:0;border-top:1px solid var(--line);margin:20px 0}

.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
/* 用户中心 / 后台：表格列较多，容器放宽一些以减少横向滚动 */
.wrap.user-layout,.wrap.admin-layout{max-width:1320px}
.wrap-narrow{max-width:520px;margin:0 auto;padding:0 20px}

/* ===================== 顶部导航 ===================== */
.site-body{min-height:100vh;display:flex;flex-direction:column}
.site-header{background:var(--white);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60}
.header-inner{display:flex;align-items:center;gap:28px;height:62px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand:hover{color:inherit}
.brand-mark{width:32px;height:32px;border-radius:7px;background:linear-gradient(135deg,var(--brand),#4f46e5);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;overflow:hidden;flex:0 0 auto}
.brand-mark-img{background:#fff;border:1px solid var(--line);padding:2px}
.brand-mark-img img{width:100%;height:100%;object-fit:contain;display:block}
/* 后台品牌预览 */
.brand-preview{display:flex;align-items:center;gap:10px;padding:12px 14px;border:1px dashed var(--line-2);border-radius:var(--radius);background:#fafbfd;min-height:58px}
.brand-preview .brand-text strong{font-size:14.5px;color:var(--ink)}
.brand-preview .brand-text em{font-size:10px;color:var(--ink-4);font-style:normal;letter-spacing:.09em;text-transform:uppercase}
input[type=file]{padding:8px 10px;font-size:13px;background:#fff;cursor:pointer;max-width:100%}
input[type=file]::file-selector-button{margin-right:10px;padding:6px 12px;border:1px solid var(--line-2);border-radius:6px;background:#f8fafc;color:var(--ink-2);font-size:12.5px;cursor:pointer}
input[type=file]::file-selector-button:hover{background:#f1f5f9}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:15px;color:var(--ink)}
.brand-text em{font-size:10px;color:var(--ink-4);font-style:normal;letter-spacing:.09em;text-transform:uppercase}
.site-nav{display:flex;gap:4px;flex:1}
.nav-link{padding:7px 13px;border-radius:6px;color:var(--ink-2);font-size:14px;font-weight:500}
.nav-link:hover{background:#f1f5f9;color:var(--ink)}
.nav-link.is-active{color:var(--brand);background:var(--brand-soft)}
.header-actions{display:flex;align-items:center;gap:8px}
/* 移动端菜单按钮：改用内联 SVG 图标（原 3 根 2px 细条在手机上对比度过低，几乎不可见） */
.nav-toggle{display:none;width:40px;height:40px;flex:0 0 auto;align-items:center;justify-content:center;border:1px solid #bfd3f8;background:var(--brand-soft);color:var(--brand);border-radius:8px;cursor:pointer;padding:0;-webkit-appearance:none;appearance:none}
.nav-toggle:hover{background:#e2ebff}
.nav-toggle:active,.nav-toggle.is-open{background:#d3e1ff;border-color:var(--brand-light)}
.nav-toggle svg{width:22px;height:22px;display:block;fill:none;stroke:currentColor;stroke-width:2.6;stroke-linecap:round}
.nav-toggle .i-close{display:none}
.nav-toggle.is-open .i-menu{display:none}
.nav-toggle.is-open .i-close{display:block}
/* 移动端菜单遮罩：点击空白处收起菜单 */
.nav-scrim{position:fixed;top:62px;left:0;right:0;bottom:0;background:rgba(15,23,42,.32);z-index:55;display:none}
.nav-scrim.is-open{display:block}
/* 移动端菜单内也放一个醒目的关闭入口 */
.nav-close{display:none}
.site-main{flex:1;padding-bottom:48px}

/* ===================== 按钮 ===================== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:9px 18px;font-size:14px;font-weight:500;line-height:1.4;border:1px solid transparent;border-radius:var(--radius);cursor:pointer;text-align:center;white-space:nowrap;transition:all .15s;background:var(--brand);color:#fff}
.btn:hover{background:var(--brand-dark);color:#fff}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:7px 13px;font-size:13px}
.btn-lg{padding:11px 26px;font-size:15px}
.btn-block{width:100%}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff}
.btn-ghost{background:var(--white);color:var(--ink-2);border-color:var(--line-2)}
.btn-ghost:hover{background:#f8fafc;color:var(--ink);border-color:var(--ink-4)}
.btn-soft{background:var(--brand-soft);color:var(--brand);border-color:#dbeafe}
.btn-soft:hover{background:#e0eaff;color:var(--brand-dark)}
.btn-ok{background:var(--ok);color:#fff;border-color:var(--ok)}
.btn-ok:hover{background:#047857;color:#fff}
.btn-warn{background:var(--warn);color:#fff;border-color:var(--warn)}
.btn-warn:hover{background:#b45309;color:#fff}
.btn-danger{background:var(--err);color:#fff;border-color:var(--err)}
.btn-danger:hover{background:#b91c1c;color:#fff}
.btn-link{background:none;border:none;color:var(--brand);padding:0;font-size:13px}
.btn-link:hover{text-decoration:underline;background:none;color:var(--brand-dark)}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;pointer-events:none}
.btn-group{display:inline-flex;gap:8px;flex-wrap:wrap}

/* ===================== 卡片 ===================== */
.card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);margin-bottom:20px}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 20px;border-bottom:1px solid var(--line);flex-wrap:wrap}
.card-head h2,.card-head h3{margin:0;font-size:16px}
.card-head .sub{margin:3px 0 0;font-size:12.5px;color:var(--ink-3);font-weight:400}
.card-body{padding:20px}
.card-foot{padding:14px 20px;border-top:1px solid var(--line);background:#fafbfc;border-radius:0 0 var(--radius-lg) var(--radius-lg)}
.card-flush .card-body{padding:0}

.page-head{margin-bottom:20px}
.page-head h1{margin:0 0 5px}
.page-head p{color:var(--ink-3);font-size:13.5px;margin:0}
.admin-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap}
.page-actions{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.admin-user{font-size:12.5px;color:var(--ink-3);padding-left:10px;border-left:1px solid var(--line)}

/* ===================== 表单 ===================== */
.form-row{margin-bottom:16px}
.form-row:last-child{margin-bottom:0}
.form-label{display:block;margin-bottom:6px;font-size:13px;font-weight:500;color:var(--ink-2)}
.form-label .req{color:var(--err);margin-left:2px}
.form-hint{margin-top:5px;font-size:12.5px;color:var(--ink-4);line-height:1.6}
.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:0 18px}
input[type=text],input[type=password],input[type=email],input[type=url],input[type=number],input[type=tel],input[type=search],input[type=datetime-local],input[type=date],select,textarea{
  width:100%;padding:9px 12px;font-size:14px;font-family:inherit;color:var(--ink);background:var(--white);border:1px solid var(--line-2);border-radius:var(--radius);transition:border-color .15s,box-shadow .15s;outline:none}
input:focus,select:focus,textarea:focus{border-color:var(--brand-light);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
input::placeholder,textarea::placeholder{color:var(--ink-4)}
input[disabled],select[disabled],textarea[disabled]{background:#f8fafc;color:var(--ink-3);cursor:not-allowed}
textarea{min-height:92px;resize:vertical;line-height:1.6}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2364748b' d='M6 8L2 4h8z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 11px center;padding-right:30px}
.input-group{display:flex;gap:8px;align-items:stretch}
.input-group input{flex:1}
.checkbox,.radio{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;cursor:pointer;color:var(--ink-2);user-select:none}
.checkbox input,.radio input{width:15px;height:15px;margin:0;accent-color:var(--brand);cursor:pointer}
.checkbox-list{display:flex;flex-wrap:wrap;gap:14px}
/* ===================== 每层跳转模式选择器 ===================== */
.stage-list{display:flex;flex-direction:column;gap:10px}
.stage-row{border:1px solid var(--line);border-radius:var(--radius);padding:12px 14px;background:#fcfdff;transition:border-color .15s,background .15s}
.stage-row.is-off{background:#f8fafc;border-style:dashed}
.stage-row.is-embed{border-color:#a7f3d0;background:#f6fefb}
.stage-head{display:flex;align-items:center;gap:8px;margin-bottom:9px}
.stage-no{font-size:13px;font-weight:700;color:var(--ink)}
.stage-modes{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.stage-mode{display:flex;flex-direction:column;gap:2px;padding:9px 11px;border:1px solid var(--line);border-radius:var(--radius);background:var(--white);cursor:pointer;transition:border-color .15s,box-shadow .15s,background .15s}
.stage-mode:hover{border-color:var(--brand-light)}
.stage-mode input{position:absolute;opacity:0;pointer-events:none}
.stage-mode b{font-size:12.5px;font-weight:600;color:var(--ink-2)}
.stage-mode em{font-size:11px;font-style:normal;color:var(--ink-4);line-height:1.5}
.stage-mode.is-on{border-color:var(--brand);background:var(--brand-soft);box-shadow:0 0 0 1px var(--brand) inset}
.stage-mode.is-on b{color:var(--brand-dark)}
/* 选中态以 :checked 为唯一事实来源，避免 JS 未同步时看不出选了什么 */
.stage-mode:has(input[type=radio]:checked){border-color:var(--brand);background:var(--brand-soft);box-shadow:0 0 0 1px var(--brand) inset}
.stage-mode:has(input[type=radio]:checked) b{color:var(--brand-dark)}
.stage-mode:has(input[type=radio]:focus-visible){outline:2px solid var(--brand);outline-offset:2px}
.stage-mode.is-disabled{opacity:.45;cursor:not-allowed;background:#f8fafc}
.stage-mode.is-disabled:hover{border-color:var(--line)}
@media (max-width:768px){
  .stage-modes{grid-template-columns:repeat(2,1fr)}
  .stage-mode em{display:none}
  .stage-mode b{font-size:12px}
}
.switch{display:inline-flex;align-items:center;gap:9px;cursor:pointer;user-select:none}
.switch input{display:none}
.switch-track{width:40px;height:22px;border-radius:12px;background:var(--line-2);position:relative;transition:background .2s;flex-shrink:0}
.switch-track::after{content:"";position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;background:#fff;box-shadow:0 1px 3px rgba(0,0,0,.2);transition:transform .2s}
.switch input:checked+.switch-track{background:var(--brand)}
.switch input:checked+.switch-track::after{transform:translateX(18px)}
.switch-text{font-size:13.5px;color:var(--ink-2)}

/* ===================== 提示框 ===================== */
.flash-wrap{padding-top:18px}
.flash-wrap:empty{display:none}
.alert{display:flex;gap:10px;align-items:flex-start;padding:12px 15px;border-radius:var(--radius);border:1px solid;margin-bottom:14px;font-size:13.5px;line-height:1.65}
.alert-icon{width:16px;height:16px;border-radius:50%;flex-shrink:0;margin-top:3px;position:relative}
.alert-icon::after{content:"";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;color:#fff}
.alert-success{background:var(--ok-soft);border-color:#a7f3d0;color:#065f46}
.alert-success .alert-icon{background:var(--ok)}
.alert-success .alert-icon::after{content:"✓"}
.alert-error{background:var(--err-soft);border-color:#fecaca;color:#991b1b}
.alert-error .alert-icon{background:var(--err)}
.alert-error .alert-icon::after{content:"!"}
.alert-warning{background:var(--warn-soft);border-color:#fde68a;color:#92400e}
.alert-warning .alert-icon{background:var(--warn)}
.alert-warning .alert-icon::after{content:"!"}
.alert-info{background:var(--info-soft);border-color:#bae6fd;color:#075985}
.alert-info .alert-icon{background:var(--info)}
.alert-info .alert-icon::after{content:"i"}

/* ===================== 表格 ===================== */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
table.tbl{width:100%;min-width:0;border-collapse:collapse;font-size:13.5px}
table.tbl th,table.tbl td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
table.tbl th{background:#f8fafc;color:var(--ink-2);font-weight:600;font-size:12.5px;border-bottom:1px solid var(--line-2)}
table.tbl tbody tr:hover{background:#fafbfd}
table.tbl tbody tr:last-child td{border-bottom:none}
table.tbl td.nowrap,table.tbl th.nowrap{white-space:nowrap}
table.tbl td.num{font-variant-numeric:tabular-nums}
table.tbl .actions{display:flex;gap:6px;flex-wrap:wrap}
table.tbl td.wrap-cell{white-space:normal;word-break:break-word;overflow-wrap:anywhere}
/* URL 单元格：长链接必须可断行，否则会在 table-layout:auto 下把表格撑出容器（PC 横向滚动）*/
table.tbl .url-cell{
  max-width:240px;white-space:normal;word-break:break-all;overflow-wrap:anywhere;
  overflow:hidden;line-height:1.5;
}
/* 长链接最多展示 2 行，超出省略，兼顾美观与不溢出 */
table.tbl .url-cell code{
  white-space:normal;word-break:break-all;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;
  overflow:hidden;max-height:2.9em;
}
/* 表格内按钮紧凑一些，降低「操作」列的最小宽度 */
table.tbl .actions .btn{padding:5px 10px;font-size:12.5px}
/* 复制成功反馈：按钮短暂变绿，给出明确视觉确认 */
.btn.is-copied{background:var(--ok)!important;border-color:var(--ok)!important;color:#fff!important}
table.tbl .actions{gap:5px}
.table-empty{padding:48px 20px;text-align:center;color:var(--ink-4);font-size:13.5px}

/* ===================== 标签 ===================== */
.tag{display:inline-flex;align-items:center;gap:4px;padding:2px 9px;border-radius:20px;font-size:12px;font-weight:500;line-height:1.7;white-space:nowrap}
.tag-ok{background:var(--ok-soft);color:#065f46}
.tag-warn{background:var(--warn-soft);color:#92400e}
.tag-err{background:var(--err-soft);color:#991b1b}
.tag-info{background:var(--info-soft);color:#075985}
.tag-brand{background:var(--brand-soft);color:var(--brand-dark)}
.tag-muted{background:#f1f5f9;color:var(--ink-3)}
.tag-lg{padding:4px 12px;font-size:12.5px}

/* ===================== 统计卡 ===================== */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px;margin-bottom:20px}
.stat{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:18px 20px;box-shadow:var(--shadow)}
.stat-label{font-size:12.5px;color:var(--ink-3);margin-bottom:7px;display:flex;align-items:center;gap:6px}
.stat-value{font-size:26px;font-weight:700;color:var(--ink);line-height:1.2;font-variant-numeric:tabular-nums}
.stat-value small{font-size:13px;font-weight:500;color:var(--ink-3);margin-left:3px}
.stat-foot{margin-top:7px;font-size:12px;color:var(--ink-4)}
.stat-accent{border-left:3px solid var(--brand)}

/* ===================== 用户中心布局 ===================== */
.user-layout,.admin-layout{display:flex;gap:20px;align-items:flex-start;padding-top:22px}
.user-main,.admin-main{flex:1;min-width:0}
.side{width:var(--sidebar-w);flex-shrink:0;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:14px;box-shadow:var(--shadow);position:sticky;top:80px;max-height:calc(100vh - 100px);overflow-y:auto}
.side-user{display:flex;align-items:center;gap:10px;padding:4px 6px 12px;border-bottom:1px solid var(--line);margin-bottom:12px}
.side-avatar{width:38px;height:38px;border-radius:9px;background:linear-gradient(135deg,var(--brand),#4f46e5);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:16px;flex-shrink:0}
.side-user-info{display:flex;flex-direction:column;gap:3px;min-width:0}
.side-user-info strong{font-size:13.5px;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.side-user-info .tag{align-self:flex-start;font-size:11px;padding:1px 7px}
.side-meta{font-size:12.5px;color:var(--ink-3);padding:0 6px 10px;border-bottom:1px solid var(--line);margin-bottom:10px}
.side-meta b{color:var(--brand);font-size:14px}
.side-brand{display:flex;align-items:center;gap:9px;padding:2px 6px 14px;border-bottom:1px solid var(--line);margin-bottom:12px;font-size:14px;color:var(--ink)}
.side-group{font-size:11px;font-weight:600;color:var(--ink-4);text-transform:uppercase;letter-spacing:.06em;padding:12px 8px 5px}
.side-nav{display:flex;flex-direction:column;gap:2px}
.side-nav-foot{margin-top:12px;padding-top:12px;border-top:1px solid var(--line)}
.side-link{display:block;padding:8px 11px;border-radius:6px;font-size:13.5px;color:var(--ink-2);font-weight:500}
.side-link:hover{background:#f1f5f9;color:var(--ink)}
.side-link.is-active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600}
.side-link-danger{color:var(--err)}
.side-link-danger:hover{background:var(--err-soft);color:#991b1b}

/* ===================== 首页 Hero ===================== */
.hero{background:linear-gradient(140deg,#0f172a 0%,#1e3a8a 55%,#1d4ed8 100%);color:#fff;padding:64px 0 72px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;right:-120px;top:-80px;width:460px;height:460px;border-radius:50%;background:radial-gradient(circle,rgba(96,165,250,.28),transparent 68%);pointer-events:none}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.hero-badge{display:inline-flex;align-items:center;gap:7px;padding:5px 13px;border-radius:20px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.22);font-size:12.5px;margin-bottom:18px;color:#dbeafe}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:#4ade80;box-shadow:0 0 0 3px rgba(74,222,128,.25)}
.hero h1{color:#fff;font-size:38px;line-height:1.25;margin:0 0 16px;font-weight:700;letter-spacing:-.01em}
.hero h1 span{background:linear-gradient(90deg,#93c5fd,#c7d2fe);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{font-size:15.5px;color:#bfdbfe;line-height:1.85;margin:0 0 26px;max-width:560px}
.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.hero-cta .btn-primary{background:#fff;color:var(--brand-dark);border-color:#fff}
.hero-cta .btn-primary:hover{background:#eff4ff;color:var(--brand-dark)}
.hero-cta .btn-ghost{background:rgba(255,255,255,.09);color:#fff;border-color:rgba(255,255,255,.28)}
.hero-cta .btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff}
.hero-points{display:flex;gap:22px;flex-wrap:wrap;font-size:13px;color:#bfdbfe}
.hero-points i{color:#4ade80;font-style:normal;margin-right:5px}
.hero-card{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-lg);padding:22px;backdrop-filter:blur(8px)}
.hero-card-title{font-size:12.5px;color:#bfdbfe;margin-bottom:14px;letter-spacing:.05em;text-transform:uppercase;font-weight:600}
.link-demo{background:rgba(15,23,42,.45);border:1px solid rgba(255,255,255,.14);border-radius:var(--radius);padding:12px 14px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;color:#e0e7ff;margin-bottom:12px;word-break:break-all;line-height:1.7}
.link-demo .k{color:#93c5fd}
.link-demo .arrow{color:#4ade80;font-weight:700}
.hero-stat-row{display:flex;gap:26px;margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14)}
.hero-stat-row div{line-height:1.35}
.hero-stat-row b{display:block;font-size:21px;color:#fff;font-weight:700;font-variant-numeric:tabular-nums}
.hero-stat-row span{font-size:12px;color:#93c5fd}

/* ===================== 区块 ===================== */
.section{padding:60px 0}
.section-alt{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{text-align:center;max-width:660px;margin:0 auto 40px}
.section-head h2{font-size:27px;margin:0 0 12px;letter-spacing:-.01em}
.section-head p{color:var(--ink-3);font-size:14.5px;line-height:1.8;margin:0}
.section-label{display:inline-block;font-size:12px;font-weight:600;color:var(--brand);letter-spacing:.08em;text-transform:uppercase;margin-bottom:10px}

.feature-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:18px}
.feature{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;transition:all .2s}
.feature:hover{border-color:#bfdbfe;box-shadow:var(--shadow-md);transform:translateY(-2px)}
.feature-icon{width:42px;height:42px;border-radius:10px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;margin-bottom:15px}
.feature h3{font-size:15.5px;margin:0 0 9px}
.feature p{color:var(--ink-3);font-size:13.5px;line-height:1.8;margin:0}

.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:20px;counter-reset:step}
.step{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;position:relative}
.step::before{counter-increment:step;content:counter(step,decimal-leading-zero);position:absolute;top:18px;right:20px;font-size:32px;font-weight:800;color:#f1f5f9;line-height:1}
.step h3{font-size:15px;margin:0 0 9px;position:relative}
.step p{color:var(--ink-3);font-size:13.5px;line-height:1.8;margin:0;position:relative}

/* ===================== 套餐卡 ===================== */
.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:16px}
.plan{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px 20px;display:flex;flex-direction:column;position:relative;transition:all .2s}
.plan:hover{border-color:#bfdbfe;box-shadow:var(--shadow-md)}
.plan.is-hot{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand),var(--shadow-md)}
.plan-badge{position:absolute;top:-10px;left:50%;transform:translateX(-50%);background:var(--brand);color:#fff;font-size:11.5px;padding:2px 11px;border-radius:20px;font-weight:600;white-space:nowrap}
.plan-name{font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:5px}
.plan-desc{font-size:12.5px;color:var(--ink-4);min-height:34px;line-height:1.6;margin-bottom:14px}
.plan-price{display:flex;align-items:baseline;gap:3px;margin-bottom:16px;padding-bottom:16px;border-bottom:1px dashed var(--line)}
.plan-price .cur{font-size:15px;color:var(--brand);font-weight:600}
.plan-price .num{font-size:32px;font-weight:700;color:var(--brand);line-height:1;font-variant-numeric:tabular-nums}
.plan-price .unit{font-size:12.5px;color:var(--ink-4);margin-left:4px}
.plan-feats{list-style:none;padding:0;margin:0 0 18px;flex:1}
.plan-feats li{font-size:13px;color:var(--ink-2);padding:5px 0 5px 20px;position:relative;line-height:1.6}
.plan-feats li::before{content:"✓";position:absolute;left:0;top:5px;color:var(--ok);font-weight:700;font-size:12px}

/* ===================== 活码结果框 ===================== */
.link-box{display:flex;gap:10px;align-items:stretch;flex-wrap:wrap}
.link-box .link-input{flex:1;min-width:220px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:13px;background:#f8fafc;color:var(--ink)}
.qr-panel{display:flex;gap:18px;align-items:center;flex-wrap:wrap;padding:16px;background:#f8fafc;border:1px solid var(--line);border-radius:var(--radius)}
.qr-panel img{width:150px;height:150px;background:#fff;border:1px solid var(--line);border-radius:6px;padding:6px}

/* ===================== 空状态 ===================== */
.empty{padding:56px 24px;text-align:center;color:var(--ink-4)}
.empty-icon{width:52px;height:52px;margin:0 auto 14px;border-radius:14px;background:#f1f5f9;position:relative}
.empty-icon::after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,#cbd5e1,#94a3b8);mask:radial-gradient(circle at 50% 50%,transparent 30%,#000 31%);-webkit-mask:radial-gradient(circle at 50% 50%,transparent 30%,#000 31%);border-radius:14px}
.empty p{margin:0 0 14px;font-size:13.5px}

/* ===================== 分页 ===================== */
.pager{display:flex;align-items:center;gap:6px;flex-wrap:wrap;padding:16px 20px;border-top:1px solid var(--line)}
.pager-info{font-size:12.5px;color:var(--ink-4);margin-right:auto}
.pager-btn{padding:5px 11px;border:1px solid var(--line-2);border-radius:6px;font-size:13px;color:var(--ink-2);background:var(--white)}
.pager-btn:hover{background:#f8fafc;border-color:var(--ink-4);color:var(--ink)}
.pager-btn.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600}
.pager-btn.is-active:hover{background:var(--brand-dark);color:#fff}
.pager-gap{color:var(--ink-4);padding:0 3px}

/* ===================== 筛选/工具条 ===================== */
.toolbar{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-bottom:16px}
.toolbar form{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.toolbar .grow{flex:1;min-width:160px}
.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:18px;flex-wrap:wrap}
.tab{padding:9px 15px;font-size:13.5px;color:var(--ink-3);border-bottom:2px solid transparent;margin-bottom:-1px;font-weight:500}
.tab:hover{color:var(--ink)}
.tab.is-active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}

/* ===================== 弹窗 ===================== */
.modal{position:fixed;inset:0;background:rgba(15,23,42,.5);z-index:200;display:none;align-items:flex-start;justify-content:center;padding:40px 16px;overflow-y:auto}
.modal.is-open{display:flex}
.modal-box{background:var(--white);border-radius:var(--radius-lg);width:100%;max-width:540px;box-shadow:var(--shadow-lg);margin:auto}
.modal-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.modal-head h3{margin:0;font-size:16px}
.modal-close{background:none;border:none;font-size:24px;line-height:1;color:var(--ink-4);cursor:pointer;padding:0 4px}
.modal-close:hover{color:var(--err)}
.modal-body{padding:20px}
.modal-foot{padding:14px 20px;border-top:1px solid var(--line);display:flex;gap:10px;justify-content:flex-end;flex-wrap:wrap}

/* ===================== 登录/注册 ===================== */
.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:40px 20px;background:linear-gradient(140deg,#0f172a,#1e3a8a 70%,#1d4ed8)}
.auth-card{width:100%;max-width:430px;background:var(--white);border-radius:14px;box-shadow:var(--shadow-lg);padding:36px 34px;position:relative}
.auth-brand{display:flex;align-items:center;gap:11px;margin-bottom:24px}
.auth-title{font-size:21px;margin:0 0 6px;text-align:left}
.auth-sub{font-size:13px;color:var(--ink-3);margin:0 0 24px}
.auth-foot{margin-top:22px;padding-top:18px;border-top:1px solid var(--line);text-align:center;font-size:13px;color:var(--ink-3)}
.auth-links{text-align:right;margin-top:-8px;margin-bottom:14px}
.auth-links a{font-size:12.5px}

/* ===================== 中转跳转页（商务简洁风） ===================== */
.hop-body{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:32px 20px;background:linear-gradient(160deg,#f8fafc,#eef2f7);margin:0}
.hop-card{background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-md);padding:40px 34px;max-width:440px;width:100%;text-align:center}
.hop-icon{width:58px;height:58px;margin:0 auto 20px;border-radius:50%;background:var(--brand-soft);display:flex;align-items:center;justify-content:center;position:relative}
.hop-icon::after{content:"";width:22px;height:22px;border:3px solid var(--brand);border-top-color:transparent;border-radius:50%;animation:hop-spin .9s linear infinite}
@keyframes hop-spin{to{transform:rotate(360deg)}}
.hop-title{font-size:19px;margin:0 0 8px}
.hop-desc{font-size:13.5px;color:var(--ink-3);line-height:1.8;margin:0 0 22px}
.hop-bar{height:4px;background:#eef2f7;border-radius:3px;overflow:hidden;margin-bottom:24px}
.hop-bar i{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--brand),#6366f1);transition:width .3s linear}
.hop-btn{display:block;width:100%;padding:12px;background:var(--brand);color:#fff;border-radius:var(--radius);font-weight:600;font-size:14.5px}
.hop-btn:hover{background:var(--brand-dark);color:#fff}
.hop-note{margin-top:16px;font-size:12px;color:var(--ink-4);word-break:break-all;line-height:1.7}
.hop-frame{width:100%;height:100vh;border:0;display:block;margin:0}
.hop-frame-body{margin:0;padding:0;overflow:hidden}
.hop-tipbar{background:var(--white);border-bottom:1px solid var(--line);padding:9px 16px;font-size:12.5px;color:var(--ink-3);display:flex;align-items:center;justify-content:space-between;gap:12px}

/* ===================== 错误页 ===================== */
.err-body{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:32px 20px;background:var(--bg);margin:0}
.err-card{background:var(--white);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-md);padding:46px 38px;max-width:440px;text-align:center}
.err-code{font-size:52px;font-weight:800;color:#e2e8f0;line-height:1;margin-bottom:10px;letter-spacing:-.03em}
.err-title{font-size:19px;margin:0 0 10px}
.err-desc{font-size:13.5px;color:var(--ink-3);line-height:1.85;margin:0 0 22px}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--white);border-top:1px solid var(--line);margin-top:auto}
.footer-inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:36px;padding:40px 20px 30px}
.footer-brand{font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:9px}
.footer-desc{font-size:13px;color:var(--ink-3);line-height:1.8;margin:0;max-width:380px}
.footer-title{font-size:13px;font-weight:600;color:var(--ink);margin-bottom:11px}
.footer-col a{display:block;font-size:13px;color:var(--ink-3);padding:3.5px 0}
.footer-col a:hover{color:var(--brand)}
.footer-text{font-size:12.5px;color:var(--ink-4);line-height:1.9}
.footer-bottom{border-top:1px solid var(--line);padding:14px 0;background:#fafbfc}
.footer-bottom .wrap{display:flex;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--ink-4)}

/* ===================== 工具类 ===================== */
.text-muted{color:var(--ink-3)}
.text-dim{color:var(--ink-4)}
.text-ok{color:var(--ok)}
.text-err{color:var(--err)}
.text-warn{color:var(--warn)}
.text-brand{color:var(--brand)}
.text-sm{font-size:12.5px}
.text-mono{font-family:ui-monospace,Menlo,Consolas,monospace}
.text-center{text-align:center}
.text-right{text-align:right}
.fw-600{font-weight:600}
.mt-0{margin-top:0}.mt-8{margin-top:8px}.mt-12{margin-top:12px}.mt-16{margin-top:16px}.mt-20{margin-top:20px}.mt-24{margin-top:24px}
.mb-0{margin-bottom:0}.mb-8{margin-bottom:8px}.mb-12{margin-bottom:12px}.mb-16{margin-bottom:16px}.mb-20{margin-bottom:20px}
.flex{display:flex}.flex-between{display:flex;align-items:center;justify-content:space-between;gap:12px}.flex-center{display:flex;align-items:center;gap:8px}
.flex-wrap{flex-wrap:wrap}
.gap-8{gap:8px}.gap-12{gap:12px}.gap-16{gap:16px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.grid-3{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px}
.divider{height:1px;background:var(--line);margin:16px 0}
.mono-box{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:12.5px;background:#f8fafc;border:1px solid var(--line);border-radius:var(--radius);padding:11px 13px;word-break:break-all;line-height:1.75;color:var(--ink-2)}
.hint-box{background:var(--info-soft);border:1px solid #bae6fd;border-radius:var(--radius);padding:13px 15px;font-size:13px;color:#075985;line-height:1.8}
.warn-box{background:var(--warn-soft);border:1px solid #fde68a;border-radius:var(--radius);padding:13px 15px;font-size:13px;color:#92400e;line-height:1.8}
.danger-box{background:var(--err-soft);border:1px solid #fecaca;border-radius:var(--radius);padding:13px 15px;font-size:13px;color:#991b1b;line-height:1.8}
.copy-ok{color:var(--ok);font-size:12.5px}

/* 简易柱状趋势图 */
.chart{display:flex;align-items:flex-end;gap:4px;height:130px;padding-top:10px}
.chart .bar{flex:1;min-width:6px;background:linear-gradient(180deg,var(--brand-light),var(--brand));border-radius:3px 3px 0 0;position:relative;transition:opacity .15s;min-height:2px}
.chart .bar:hover{opacity:.78}
.chart .bar span{position:absolute;top:-19px;left:50%;transform:translateX(-50%);font-size:11px;color:var(--ink-3);white-space:nowrap;display:none}
.chart .bar:hover span{display:block}
.chart-axis{display:flex;gap:4px;margin-top:6px}
.chart-axis span{flex:1;min-width:6px;text-align:center;font-size:10.5px;color:var(--ink-4);overflow:hidden;white-space:nowrap}

/* ===================== 响应式 ===================== */
@media (max-width:960px){
  .hero-inner{grid-template-columns:1fr;gap:34px}
  .hero h1{font-size:31px}
  .footer-inner{grid-template-columns:1fr 1fr;gap:26px}
  .user-layout,.admin-layout{flex-direction:column}
  .side{width:100%;position:static;max-height:none}
  .side-nav{flex-direction:row;flex-wrap:wrap;gap:6px}
  .side-link{padding:7px 12px;background:#f8fafc}
  .side-group{padding-top:8px}
}
@media (max-width:768px){
  .site-nav{display:none;position:absolute;top:62px;left:0;right:0;background:var(--white);border-bottom:1px solid var(--line);flex-direction:column;padding:10px 20px 16px;gap:2px;box-shadow:var(--shadow-md);z-index:58;max-height:calc(100vh - 62px);overflow-y:auto;-webkit-overflow-scrolling:touch}
  .site-nav.is-open{display:flex}
  .site-nav .nav-link{padding:10px 12px}
  .nav-close{display:flex;align-items:center;justify-content:center;gap:6px;margin-top:8px;padding:10px;border:1px solid var(--line);border-radius:8px;background:#f8fafc;color:var(--ink-2);font-size:13.5px;cursor:pointer;width:100%}
  .nav-toggle{display:flex}
  .header-inner{gap:12px}
  .header-actions .btn:not(.btn-primary):not(.nav-toggle){display:none}
  .hero{padding:44px 0 52px}
  .hero h1{font-size:27px}
  .hero-lead{font-size:14.5px}
  .section{padding:44px 0}
  .section-head h2{font-size:22px}
  .grid-2{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr;gap:24px;padding:32px 20px 24px}
  h1{font-size:22px}
  .stat-value{font-size:23px}
  .auth-card{padding:28px 22px}
  .card-body{padding:16px}
  .card-head{padding:14px 16px}
  .modal{padding:16px}
  .admin-head{align-items:flex-start;flex-direction:column}
}
@media (max-width:520px){
  .btn-group{width:100%}
  .btn-group .btn{flex:1}
  .hero-cta .btn{width:100%}
  .plan-grid{grid-template-columns:1fr}
  .stat-grid{grid-template-columns:1fr 1fr;gap:12px}
  .toolbar form{width:100%}
  .toolbar .grow{width:100%}
  .pager{justify-content:center}
  .pager-info{width:100%;text-align:center;margin:0 0 6px}
}

/* ===== 补充：当前套餐标记 / FAQ / 实践卡片 ===== */
.plan.is-mine{border-color:var(--ok);box-shadow:0 0 0 1px var(--ok)}
.plan.is-mine .plan-badge{background:var(--ok)}
.plan .btn-block{width:100%}

.faq{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line);padding:14px 0}
.faq-q{font-size:14px;font-weight:600;color:var(--ink);line-height:1.7}
.faq-q::before{content:"Q ";color:var(--brand);font-weight:700}
.faq-a{font-size:13.5px;color:var(--ink-3);line-height:1.85;margin-top:7px}
.faq-a::before{content:"A ";color:var(--ink-4);font-weight:700}
.faq-a code{background:var(--bg-soft);padding:1px 5px;border-radius:4px;font-size:12.5px}

.pract{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px}
.pract-t{font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:6px}
.pract-d{font-size:12.5px;color:var(--ink-3);line-height:1.75}

.steps li{list-style:none;position:relative;padding-left:34px;margin-bottom:16px;line-height:1.85;font-size:13.5px;color:var(--ink-2)}
.steps li::before{counter-increment:step;content:counter(step);position:absolute;left:0;top:1px;width:22px;height:22px;border-radius:50%;background:var(--brand);color:#fff;font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.steps ul{margin:7px 0 0;padding-left:18px}
.steps ul li{padding-left:0;margin-bottom:5px;font-size:13px;list-style:disc}
.steps ul li::before{display:none;counter-increment:none}

/* ==========================================================================
   移动端表格转卡片（由 app.js 自动按表头生成 data-th 并加 .is-cards）
   目的：手机上不再横向滚动/穿模，同时 PC 保持标准表格
   ========================================================================== */
@media (max-width:768px){
  /* 兜底：不让任何长内容把整页撑出横向滚动条 */
  html,body{overflow-x:hidden;max-width:100%}
  .table-wrap{overflow-x:visible}
  .hero{overflow:hidden}
  .hero::after{display:none}
  .link-box .link-input{min-width:0}
  .modal-box{max-width:100%}

  .tbl.is-cards thead{display:none}
  .tbl.is-cards tbody,
  .tbl.is-cards tr{display:block}
  .tbl.is-cards tr{border-bottom:8px solid #f1f5f9;padding:2px 0}
  .tbl.is-cards tbody tr:hover{background:transparent}
  .tbl.is-cards td{
    display:flex;align-items:flex-start;justify-content:space-between;gap:12px;
    padding:8px 14px;border-bottom:none;text-align:right;font-size:13px;
  }
  .tbl.is-cards td::before{
    content:attr(data-th);flex:0 0 auto;max-width:44%;text-align:left;
    color:var(--ink-4);font-size:12.5px;font-weight:500;white-space:normal;word-break:break-word;
  }
  .tbl.is-cards td:not([data-th]):not([colspan])::before{display:none}
  .tbl.is-cards td[data-th=""]::before{display:none}
  /* 跨列行（二维码/详情展开区）整行铺开 */
  .tbl.is-cards td[colspan]{display:block;text-align:left;padding:12px 14px;background:#fafbfd}
  .tbl.is-cards td[colspan]::before{display:none}
  /* URL 单元格：卡片模式下改为整行换行展示，不再截断 */
  .tbl.is-cards td.url-cell{
    max-width:none;white-space:normal;overflow:visible;text-overflow:clip;
    display:block;text-align:left;word-break:break-all;
  }
  .tbl.is-cards td.url-cell::before{max-width:none;display:block;margin-bottom:4px}
  /* 卡片模式下不再截断链接，完整展示 */
  .tbl.is-cards td.url-cell code{
    display:block;-webkit-line-clamp:none;max-height:none;overflow:visible;
    word-break:break-all;white-space:normal;
  }
  .tbl.is-cards .actions{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
  .tbl.is-cards .actions form{display:inline-flex}
  .tbl.is-cards .actions .btn{flex:1 1 auto;min-width:74px}
  /* 卡片头部：标题行整行展示 */
  .tbl.is-cards td.cell-title{display:block;text-align:left;background:#f8fafc}
  .tbl.is-cards td.cell-title::before{display:none}
  .tbl.is-cards td.num{text-align:right}
}

.side-meta-link{display:inline-block;margin-left:6px;padding:1px 8px;font-size:12px;border-radius:999px;background:var(--brand-soft);color:var(--brand);text-decoration:none}
.side-meta-link:hover{background:#e0eaff;color:var(--brand-dark)}

/* 余额变动正负色 */
table.tbl .text-ok{color:var(--ok)}
table.tbl .text-err{color:var(--err)}

/* 移动端抽屉里补上「控制台 / 退出登录」入口（header 上的 ghost 按钮在手机上会被隐藏） */
.site-nav .nav-extra{display:none}
@media (max-width:768px){
  .site-nav .nav-extra{display:flex;flex-direction:column;gap:6px;border-top:1px solid var(--line);margin-top:8px;padding-top:10px}
  .site-nav .nav-extra .btn{width:100%}
  .page-head h1{font-size:21px}
  .admin-head .page-actions{width:100%}
  .admin-head .page-actions .btn{flex:1 1 auto}
  code{word-break:break-all}
  .pager{padding:12px 14px}
}
@media (max-width:520px){
  .site-nav{top:58px;padding:10px 14px 14px}
  .nav-scrim{top:58px}
  .brand-text strong{font-size:14px;max-width:150px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
  .card-head{padding:13px 14px}
  .card-body{padding:14px}
  .card-foot{padding:12px 14px}
  .stat-value{font-size:21px}
  .tbl.is-cards td{padding:7px 12px;font-size:12.5px}
}