/* ============================================================
   1. 设计令牌
   ============================================================ */
:root{
    --dd-ink:#1a0f5e;
    --dd-primary:#4c32df;
    --dd-primary-dark:#3d21dd;
    --dd-primary-deep:#241478;
    --dd-tint:#edebfb;
    --dd-tint-2:#f6f5fe;
    --dd-amber:#ff7e14;
    --dd-amber-dark:#f25907;
    --dd-line:#e3e0f5;
    --dd-line-strong:#d3cdf0;
    --dd-muted:#5b5b8c;
    --dd-text:#3b3a5e;
    --dd-success:#0f9d58;
    --dd-success-bg:#e7f6ee;
    --dd-danger:#e5484d;
    --dd-danger-bg:#fdecec;
    --dd-warning:#c77700;
    --dd-warning-bg:#fff5e5;
    --dd-info:#1f6fd0;
    --dd-info-bg:#eaf2fe;
    --dd-bg:#f7f8fc;
    --dd-card:#ffffff;
    --dd-radius:14px;
    --dd-radius-sm:10px;
    --dd-radius-xs:8px;
    --dd-shadow:0 1px 2px rgba(26,15,94,.06),0 1px 3px rgba(26,15,94,.04);
    --dd-shadow-md:0 10px 30px rgba(26,15,94,.10);
    --dd-shadow-lg:0 24px 60px rgba(26,15,94,.16);
    --dd-max:1400px;
    --dd-font:16px/1.6 'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'PingFang SC','Microsoft YaHei',sans-serif;

    /* 兼容旧变量：全站大量页面直接引用这些名字 */
    --primary:var(--theme-primary,#4c32df);
    --primary-light:var(--theme-badge-bg,#edebfb);
    --primary-dark:var(--theme-primary-dark,#3d21dd);
    --accent:var(--theme-accent,#ff7e14);
    --accent-dark:var(--dd-amber-dark);
    --danger:#e5484d;
    --warning:#c77700;
    --success:#0f9d58;
    --bg:var(--theme-body-bg,#f7f8fc);
    --card:var(--theme-card-bg,#ffffff);
    --border:var(--theme-border-color,#e3e0f5);
    --text:var(--theme-text-color,#3b3a5e);
    --muted:var(--theme-muted-color,#5b5b8c);
    --shadow:var(--dd-shadow);
    --shadow-md:var(--dd-shadow-md);
    --radius:var(--dd-radius);
    --radius-sm:var(--dd-radius-sm);
}
:root[data-theme="dark"]{
    --dd-ink:#eef0ff;
    --dd-text:#c9cbe4;
    --dd-muted:#9a9dc4;
    --dd-line:#2c2a52;
    --dd-line-strong:#3a3768;
    --dd-tint:#221f47;
    --dd-tint-2:#1c1a3c;
    --dd-card:#171532;
    --dd-bg:#0f0d26;
    --dd-shadow:0 1px 2px rgba(0,0,0,.5);
    --dd-shadow-md:0 10px 30px rgba(0,0,0,.5);
    --dd-success-bg:#12301f;
    --dd-danger-bg:#331618;
    --dd-warning-bg:#33260f;
    --dd-info-bg:#122239;
    --text:#c9cbe4;
    --muted:#9a9dc4;
    --bg:#0f0d26;
    --card:#171532;
    --border:#2c2a52;
}

/* ============================================================
   2. 基础排版与容器
   ============================================================ */
body{font:var(--dd-font);color:var(--dd-text);background:var(--dd-bg);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4,h5{color:var(--dd-ink);font-weight:800;letter-spacing:-.02em;margin:0}
a{color:var(--dd-primary);text-decoration:none}
a:hover{color:var(--dd-primary-dark)}
.dd-container{width:100%;max-width:var(--dd-max);margin:0 auto;padding:0 40px}
.dd-section{padding:64px 0}
.dd-section-tight{padding:36px 0}
.dd-narrow{max-width:900px;margin:0 auto}
.dd-muted{color:var(--dd-muted)}
.dd-small{font-size:13px}
.dd-center{text-align:center}
.dd-stack>*+*{margin-top:16px}
.dd-row{display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.dd-row>.dd-btn,.dd-row>.pn-btn,.dd-row>button.dd-btn,.dd-row>.btn{flex:0 0 auto;height:44px;min-height:44px}
.dd-row>input,.dd-row>select,.dd-row>.pn-input{flex:1 1 200px;min-width:0}
.dd-row-between{display:flex;gap:12px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.dd-spacer{flex:1}
.dd-mt-0{margin-top:0}.dd-mt-8{margin-top:8px}.dd-mt-16{margin-top:16px}.dd-mt-24{margin-top:24px}.dd-mt-32{margin-top:32px}
.dd-mb-0{margin-bottom:0}.dd-mb-8{margin-bottom:8px}.dd-mb-16{margin-bottom:16px}.dd-mb-24{margin-bottom:24px}.dd-mb-32{margin-bottom:32px}
.dd-hr{height:1px;background:var(--dd-line);border:0;margin:28px 0}
.dd-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--dd-primary)}
.dd-section-head{text-align:center;max-width:760px;margin:0 auto 40px}
.dd-section-head h2{font-size:30px;line-height:1.25}
.dd-section-head p{margin-top:12px;font-size:16px;color:var(--dd-muted)}

/* ============================================================
   3. 按钮
   ============================================================ */
.dd-btn,.pn-btn,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;
    border:1px solid transparent;border-radius:var(--dd-radius-sm);font:600 15px/1 'Inter',sans-serif;cursor:pointer;
    text-decoration:none;transition:background .16s,border-color .16s,color .16s,transform .16s,box-shadow .16s;white-space:nowrap}
.dd-btn:hover,.pn-btn:hover{transform:translateY(-1px)}
.dd-btn-primary{background:var(--dd-primary);color:#fff;box-shadow:0 6px 18px rgba(76,50,223,.22)}
.dd-btn-primary:hover{background:var(--dd-primary-dark);color:#fff}
.dd-btn-amber{background:var(--dd-amber);color:#fff;box-shadow:0 6px 18px rgba(255,126,20,.25)}
.dd-btn-amber:hover{background:var(--dd-amber-dark);color:#fff}
.dd-btn-ink{background:var(--dd-primary-deep);color:#fff}
.dd-btn-ink:hover{background:#1b0f5c;color:#fff}
.dd-btn-outline{background:transparent;border-color:var(--dd-line-strong);color:var(--dd-ink)}
.dd-btn-outline:hover{border-color:var(--dd-primary);color:var(--dd-primary);background:var(--dd-tint-2)}
.dd-btn-ghost{background:transparent;color:var(--dd-primary);padding:0 10px}
.dd-btn-ghost:hover{background:var(--dd-tint)}
.dd-btn-danger{background:var(--dd-danger);color:#fff}
.dd-btn-danger:hover{background:#c93b40;color:#fff}
.dd-btn-white{background:#fff;color:var(--dd-ink)}
.dd-btn-white:hover{background:#f2f1ff;color:var(--dd-ink)}
.dd-btn-sm{height:34px;padding:0 14px;font-size:13.5px;border-radius:var(--dd-radius-xs)}
.dd-btn-lg{height:52px;padding:0 30px;font-size:16px}
.dd-btn-block{width:100%}
.dd-btn[disabled],.dd-btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none}
.dd-btn-row{display:flex;gap:12px;flex-wrap:wrap}

/* ============================================================
   4. 卡片（pn-card 兼容层）
   ============================================================ */
.pn-card,.dd-card{background:var(--dd-card);border:1px solid var(--dd-line);border-radius:var(--dd-radius);
    box-shadow:var(--dd-shadow);margin-bottom:24px;overflow:hidden}
.pn-card-header,.dd-card-head{padding:18px 24px;border-bottom:1px solid var(--dd-line);display:flex;align-items:center;
    justify-content:space-between;gap:14px;flex-wrap:wrap;background:var(--dd-card)}
.pn-card-title,.dd-card-title{font-size:15.5px;font-weight:800;color:var(--dd-ink);letter-spacing:-.01em}
.pn-card-body,.dd-card-body{padding:26px 28px}
.pn-card-body-flush{padding:0}
.pn-card-body-flush .pn-table th:first-child,.pn-card-body-flush .pn-table td:first-child{padding-left:26px}
.pn-card-body-flush .pn-table th:last-child,.pn-card-body-flush .pn-table td:last-child{padding-right:26px}
.dd-card-hover{transition:box-shadow .18s,transform .18s,border-color .18s}
.dd-card-hover:hover{box-shadow:var(--dd-shadow-md);transform:translateY(-3px);border-color:var(--dd-line-strong)}
.dd-card-tint{background:var(--dd-tint-2)}
.dd-card-flat{box-shadow:none}
.dd-card-grid{display:grid;gap:20px}
.dd-cols-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.dd-cols-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.dd-cols-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.dd-card-pad{padding:24px}

/* ============================================================
   5. 页面头部 / 面包屑 / 营销横幅
   ============================================================ */
.pn-page-header{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;flex-wrap:wrap}
.pn-page-title{font-size:27px;font-weight:800;color:var(--dd-ink);letter-spacing:-.02em;line-height:1.2}
.pn-page-subtitle{margin-top:8px;font-size:14.5px;color:var(--dd-muted);max-width:820px;line-height:1.65}
.dd-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--dd-muted);margin-bottom:12px;flex-wrap:wrap}
.dd-breadcrumb a{color:var(--dd-muted)}
.dd-breadcrumb a:hover{color:var(--dd-primary)}
.dd-breadcrumb span.sep{opacity:.5}
.dd-breadcrumb .cur{color:var(--dd-ink);font-weight:600}

.dd-page-hero{background:linear-gradient(135deg,var(--dd-primary-deep) 0%,#3a1e9e 52%,var(--dd-primary) 100%);
    color:#fff;padding:56px 0 60px;position:relative;overflow:hidden}
.dd-page-hero::after{content:"";position:absolute;inset:0;
    background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
    background-size:56px 56px;mask-image:radial-gradient(circle at 70% 20%,#000 0%,transparent 72%);pointer-events:none}
.dd-page-hero .dd-container{position:relative;z-index:1}
.dd-page-hero h1{color:#fff;font-size:38px;line-height:1.18;letter-spacing:-.025em}
.dd-page-hero p{margin-top:14px;font-size:16.5px;color:rgba(255,255,255,.86);max-width:760px;line-height:1.7}
.dd-page-hero .dd-btn-row{margin-top:26px}
.dd-page-hero .dd-breadcrumb,.dd-page-hero .dd-breadcrumb a,.dd-page-hero .dd-breadcrumb .cur{color:rgba(255,255,255,.78)}
.dd-hero-badges{display:flex;gap:10px;flex-wrap:wrap;margin-top:22px}
.dd-hero-badge{display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 14px;border-radius:999px;
    background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#fff;font-size:13.5px;font-weight:600}
.dd-cta-band{background:linear-gradient(120deg,var(--dd-primary-deep),var(--dd-primary));border-radius:20px;color:#fff;
    padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.dd-cta-band h2{color:#fff;font-size:28px}
.dd-cta-band p{margin-top:10px;color:rgba(255,255,255,.85);font-size:15.5px;max-width:620px}

/* ============================================================
   6. 表格
   ============================================================ */
.pn-table,.dd-table{width:100%;border-collapse:separate;border-spacing:0}
.pn-table th,.dd-table th{padding:12px 16px;font-size:11.5px;font-weight:800;color:var(--dd-muted);text-transform:uppercase;
    letter-spacing:.06em;background:var(--dd-tint-2);border-bottom:1px solid var(--dd-line);text-align:left;white-space:nowrap}
.pn-table td,.dd-table td{padding:14px 16px;font-size:14px;color:var(--dd-text);border-bottom:1px solid var(--dd-line);vertical-align:middle}
.pn-table tbody tr:last-child td,.dd-table tbody tr:last-child td{border-bottom:none}
.pn-table tbody tr:hover td,.dd-table tbody tr:hover td{background:var(--dd-tint-2)}
.pn-table a,.dd-table a{color:var(--dd-primary);font-weight:600}
.dd-table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch}
.dd-table-strong td:first-child{font-weight:700;color:var(--dd-ink)}
.dd-td-num{font-variant-numeric:tabular-nums;text-align:right}
.pn-detail-list,.dd-detail-list{display:grid;gap:0}
.pn-detail-list>div,.dd-detail-row{display:flex;justify-content:space-between;gap:18px;padding:12px 0;border-bottom:1px dashed var(--dd-line);font-size:14px}
.pn-detail-list>div:last-child,.dd-detail-row:last-child{border-bottom:none}
.pn-detail-list dt,.dd-detail-row .k{color:var(--dd-muted);font-weight:600}
.pn-detail-list dd,.dd-detail-row .v{color:var(--dd-ink);font-weight:700;text-align:right;word-break:break-word}

/* ============================================================
   7. 徽标 / 状态
   ============================================================ */
.dd-badge,.pn-badge{display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 10px;border-radius:999px;
    font-size:12px;font-weight:700;background:var(--dd-tint);color:var(--dd-primary);white-space:nowrap}
.dd-badge-success,.badge-paid,.badge-active{background:var(--dd-success-bg);color:#0b7a44}
.dd-badge-warning,.badge-pending{background:var(--dd-warning-bg);color:#9a5b00}
.dd-badge-danger,.badge-overdue,.badge-unpaid{background:var(--dd-danger-bg);color:#b53236}
.dd-badge-info,.badge-processing{background:var(--dd-info-bg);color:#175a9e}
.dd-badge-neutral,.badge-cancelled,.badge-expired{background:#eef0f4;color:#5b6480}
:root[data-theme="dark"] .dd-badge-neutral{background:#26243f;color:#a9aec9}
.dd-dot{width:8px;height:8px;border-radius:50%;background:currentColor;flex-shrink:0}

/* ============================================================
   8. 告警 / 提示
   ============================================================ */
.pn-alert,.dd-alert{padding:14px 16px;border-radius:var(--dd-radius-sm);font-size:14px;margin-bottom:16px;display:flex;
    align-items:flex-start;gap:10px;border:1px solid var(--dd-line);background:var(--dd-tint-2);color:var(--dd-text);line-height:1.6}
.pn-alert-success,.dd-alert-success{background:var(--dd-success-bg);border-color:#b9e3cd;color:#0b6b3e}
.pn-alert-error,.pn-alert-danger,.dd-alert-danger{background:var(--dd-danger-bg);border-color:#f5c2c4;color:#a92c30}
.pn-alert-warning,.dd-alert-warning{background:var(--dd-warning-bg);border-color:#f3d9a8;color:#8a5200}
.pn-alert-info,.dd-alert-info{background:var(--dd-info-bg);border-color:#c3d9f5;color:#15538f}
.pn-alert a{color:inherit;text-decoration:underline}

/* ============================================================
   9. 表单
   ============================================================ */
.pn-label,.form-label,.dd-label{display:block;font-size:13.5px;font-weight:700;color:var(--dd-ink);margin-bottom:7px}
.pn-input,.form-control,.dd-input{width:100%;height:46px;padding:0 14px;border:1px solid var(--dd-line-strong);
    border-radius:var(--dd-radius-sm);background:var(--dd-card);color:var(--dd-text);font:400 15px/1.4 'Inter',sans-serif;
    transition:border-color .15s,box-shadow .15s}
.pn-input:focus,.form-control:focus,.dd-input:focus{outline:none;border-color:var(--dd-primary);box-shadow:0 0 0 4px rgba(76,50,223,.13)}
.pn-input::placeholder,.dd-input::placeholder{color:#a6a4c2}
select.pn-input,select.form-control,select.dd-input{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%235b5b8c' stroke-width='2.4'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
    background-repeat:no-repeat;background-position:right 14px center;padding-right:38px}
textarea.pn-input,textarea.form-control,textarea.dd-input{height:auto;min-height:120px;padding:12px 14px;resize:vertical;line-height:1.65}
.dd-field{margin-bottom:18px}
.dd-field-hint{margin-top:6px;font-size:12.5px;color:var(--dd-muted)}
.dd-check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--dd-text)}
.dd-check input{width:18px;height:18px;accent-color:var(--dd-primary);margin-top:2px;flex-shrink:0}
.dd-form-grid{display:grid;gap:18px;grid-template-columns:repeat(2,minmax(0,1fr))}
.dd-form-grid .dd-span-2{grid-column:span 2}
.pn-amount-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}
.pn-amount-btn{height:44px;border:1px solid var(--dd-line-strong);border-radius:var(--dd-radius-sm);background:var(--dd-card);
    color:var(--dd-ink);font-weight:700;cursor:pointer;transition:all .15s}
.pn-amount-btn:hover{border-color:var(--dd-primary);color:var(--dd-primary)}
.pn-amount-btn.is-active{background:var(--dd-primary);border-color:var(--dd-primary);color:#fff}
.pn-pay-option{display:flex;align-items:center;gap:14px;padding:16px;border:1px solid var(--dd-line-strong);
    border-radius:var(--dd-radius-sm);background:var(--dd-card);cursor:pointer;transition:all .15s}
.pn-pay-option:hover{border-color:var(--dd-primary);background:var(--dd-tint-2)}

/* ============================================================
   10. 选项卡 / 步骤 / 折叠
   ============================================================ */
.dd-tabs,.dt-tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:24px}
.dd-tab,.dt-tab{padding:10px 18px;border:1px solid var(--dd-line-strong);border-radius:999px;background:var(--dd-card);
    color:var(--dd-ink);font-size:13.5px;font-weight:700;text-decoration:none;transition:all .15s;display:inline-flex;align-items:center;gap:8px}
.dd-tab:hover,.dt-tab:hover{border-color:var(--dd-primary);color:var(--dd-primary)}
.dd-tab.is-active,.dt-tab.is-active,.dt-tab.active{background:var(--dd-primary);border-color:var(--dd-primary);color:#fff}
.dd-tab.is-active:hover,.dt-tab.is-active:hover{color:#fff}
.dd-underline-tabs{display:flex;gap:26px;border-bottom:1px solid var(--dd-line);margin-bottom:24px;overflow-x:auto}
.dd-underline-tabs a{padding:12px 0;font-size:14.5px;font-weight:700;color:var(--dd-muted);border-bottom:2px solid transparent;white-space:nowrap}
.dd-underline-tabs a.is-active{color:var(--dd-primary);border-bottom-color:var(--dd-primary)}

.dd-steps{display:grid;gap:16px;grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
.dd-step{background:var(--dd-card);border:1px solid var(--dd-line);border-radius:var(--dd-radius);padding:22px;position:relative}
.dd-step-num{width:34px;height:34px;border-radius:50%;background:var(--dd-tint);color:var(--dd-primary);display:flex;
    align-items:center;justify-content:center;font-weight:800;font-size:15px;margin-bottom:14px}
.dd-step h3{font-size:16px;margin-bottom:8px}
.dd-step p{font-size:14px;color:var(--dd-muted);line-height:1.65}
.dd-faq{display:grid;gap:12px}
.dd-faq-item,.dt-faq-item{background:var(--dd-card);border:1px solid var(--dd-line);border-radius:var(--dd-radius);padding:0}
.dd-faq-item summary,.dt-faq-item summary{cursor:pointer;list-style:none;padding:18px 22px;font-size:15px;font-weight:700;
    color:var(--dd-ink);display:flex;align-items:center;justify-content:space-between;gap:16px}
.dd-faq-item summary::-webkit-details-marker{display:none}
.dd-faq-item summary::after{content:"+";color:var(--dd-primary);font-size:20px;font-weight:700;line-height:1;flex-shrink:0}
.dd-faq-item[open] summary::after{content:"\2212"}
.dd-faq-item .dd-faq-body,.dd-faq-item p{padding:0 22px 20px;font-size:14px;color:var(--dd-muted);line-height:1.75;margin:0}

/* ============================================================
   11. 功能/介绍块
   ============================================================ */
.dd-feature-grid{display:grid;gap:20px;grid-template-columns:repeat(auto-fit,minmax(240px,1fr))}
.dd-feature{background:var(--dd-card);border:1px solid var(--dd-line);border-radius:var(--dd-radius);padding:24px}
.dd-feature-icon{width:46px;height:46px;border-radius:12px;background:var(--dd-tint);display:flex;align-items:center;
    justify-content:center;font-size:22px;margin-bottom:14px}
.dd-feature h3{font-size:16.5px;margin-bottom:8px}
.dd-feature p{font-size:14px;color:var(--dd-muted);line-height:1.7}
.dd-intro{background:var(--dd-tint-2);border:1px solid var(--dd-line);border-radius:var(--dd-radius);padding:26px 28px;margin-bottom:26px}
.dd-intro h2{font-size:19px;margin-bottom:14px}
.dd-prose{font-size:15px;line-height:1.85;color:var(--dd-text)}
.dd-prose h2{font-size:22px;margin:32px 0 12px}
.dd-prose h3{font-size:17px;margin:24px 0 10px}
.dd-prose p{margin:0 0 14px}
.dd-prose ul,.dd-prose ol{margin:0 0 16px 22px}
.dd-prose li{margin-bottom:8px}
.dd-prose table{margin:18px 0}

/* ============================================================
   12. 统计 / 价格 / 产品卡
   ============================================================ */
.pn-stat-grid,.dd-stat-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(210px,1fr))}
.pn-stat,.dd-stat{background:var(--dd-card);border:1px solid var(--dd-line);border-radius:var(--dd-radius);padding:20px 22px;
    display:flex;gap:14px;align-items:flex-start}
.pn-stat-icon,.dd-stat-icon{width:44px;height:44px;border-radius:12px;background:var(--dd-tint);color:var(--dd-primary);
    display:flex;align-items:center;justify-content:center;flex-shrink:0}
.pn-stat-icon-blue{background:var(--dd-info-bg);color:var(--dd-info)}
.pn-stat-icon-green{background:var(--dd-success-bg);color:#0b7a44}
.pn-stat-icon-orange{background:var(--dd-warning-bg);color:#9a5b00}
.pn-stat-icon-red{background:var(--dd-danger-bg);color:#b53236}
.pn-stat-val,.dd-stat-val{font-size:23px;font-weight:800;color:var(--dd-ink);line-height:1.2}
.pn-stat-lbl,.dd-stat-lbl{font-size:13px;color:var(--dd-muted);margin-top:4px}
.pn-product-grid,.dd-product-grid{display:grid;gap:22px;grid-template-columns:repeat(auto-fit,minmax(260px,1fr))}
.pn-product-card,.dd-product-card{background:var(--dd-card);border:1px solid var(--dd-line);border-radius:var(--dd-radius);
    padding:26px;display:flex;flex-direction:column;transition:box-shadow .18s,transform .18s}
.pn-product-card:hover,.dd-product-card:hover{box-shadow:var(--dd-shadow-md);transform:translateY(-3px)}
.pn-product-price,.dd-product-price{font-size:30px;font-weight:800;color:var(--dd-ink);margin:14px 0 6px}
.pn-product-price span{font-size:14px;font-weight:600;color:var(--dd-muted)}
.pn-popular{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--dd-amber);
    color:#fff;font-size:11.5px;font-weight:800;letter-spacing:.04em;text-transform:uppercase}
.dd-price-table td:first-child{font-weight:700;color:var(--dd-ink)}

/* ============================================================
   13. 空状态
   ============================================================ */
.pn-empty,.dd-empty{text-align:center;padding:56px 24px;color:var(--dd-muted)}
.pn-empty-icon,.dd-empty-icon{width:64px;height:64px;border-radius:20px;background:var(--dd-tint);color:var(--dd-primary);
    display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:28px}
.pn-empty h3,.dd-empty h3{font-size:17px;margin-bottom:8px}
.pn-empty p,.dd-empty p{font-size:14px;max-width:460px;margin:0 auto}
.dd-empty .dd-btn{margin-top:20px}

/* ============================================================
   14. 账户区外壳（Dynadot「我的账户」式侧栏 + 内容）
   ============================================================ */
.dd-account{display:grid;grid-template-columns:250px minmax(0,1fr);gap:32px;align-items:start}
.dd-account-nav{position:sticky;top:96px;background:var(--dd-card);border:1px solid var(--dd-line);border-radius:var(--dd-radius);
    padding:14px;box-shadow:var(--dd-shadow)}
.dd-account-nav-title{font-size:12px;font-weight:800;letter-spacing:.08em;text-transform:uppercase;color:var(--dd-muted);padding:8px 12px 10px}
.dd-account-link{display:flex;align-items:center;gap:11px;padding:11px 12px;border-radius:var(--dd-radius-xs);font-size:14px;
    font-weight:600;color:var(--dd-text);text-decoration:none;transition:background .14s,color .14s;position:relative}
.dd-account-link:hover{background:var(--dd-tint-2);color:var(--dd-primary)}
.dd-account-link.is-active{background:var(--dd-tint);color:var(--dd-primary);font-weight:700}
.dd-account-link.is-active::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:3px;background:var(--dd-primary)}
.dd-account-link i,.dd-account-link svg{width:18px;height:18px;flex-shrink:0}
.dd-account-divider{height:1px;background:var(--dd-line);margin:10px 4px}
.dd-account-main{min-width:0}
.dd-account-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px}
.dd-account-head h1{font-size:25px}
.dd-account-head p{margin-top:6px;font-size:14px;color:var(--dd-muted)}

/* ============================================================
   15. 杂项（历史组件兼容）
   ============================================================ */
.pn-main{max-width:var(--dd-max);margin:0 auto;padding:32px 40px;width:100%;flex:1}
.pn-2col{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px}
.pn-actions{display:flex;gap:10px;flex-wrap:wrap;align-items:center}
.pn-back{display:inline-flex;align-items:center;gap:7px;font-size:13.5px;font-weight:600;color:var(--dd-muted);margin-bottom:14px}
.pn-back:hover{color:var(--dd-primary)}
.pn-section-title{font-size:18px;font-weight:800;color:var(--dd-ink);margin:26px 0 14px}
.pn-order-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px solid var(--dd-line);flex-wrap:wrap}
.pn-order-row:last-child{border-bottom:none}
.pn-msg{background:var(--dd-card);border:1px solid var(--dd-line);border-radius:var(--dd-radius);padding:18px 20px;margin-bottom:14px}
.pn-msg-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:8px;flex-wrap:wrap}
.pn-msg-author{font-weight:700;color:var(--dd-ink);font-size:14px}
.pn-msg-date{font-size:12.5px;color:var(--dd-muted)}
.pn-msg-body{font-size:14px;line-height:1.75;color:var(--dd-text);white-space:pre-wrap;word-break:break-word}
.pn-progress-wrap{height:8px;border-radius:999px;background:var(--dd-tint);overflow:hidden}
.pn-progress-fill{height:100%;border-radius:999px;background:var(--dd-primary)}
.pn-code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13px;background:var(--dd-tint-2);
    border:1px solid var(--dd-line);border-radius:var(--dd-radius-xs);padding:2px 7px;color:var(--dd-ink)}
.pn-aff-grid{display:grid;gap:18px;grid-template-columns:repeat(auto-fit,minmax(190px,1fr))}
.pn-aff-stat{background:var(--dd-card);border:1px solid var(--dd-line);border-radius:var(--dd-radius);padding:18px}
.pn-aff-val{font-size:22px;font-weight:800;color:var(--dd-ink)}
.pn-aff-lbl{font-size:12.5px;color:var(--dd-muted);margin-top:4px}
.pn-welcome{background:linear-gradient(120deg,var(--dd-primary-deep),var(--dd-primary));border-radius:var(--dd-radius);
    padding:28px 30px;color:#fff;margin-bottom:26px}
.pn-welcome h1,.pn-welcome h2{color:#fff;font-size:23px}
.pn-welcome-text{color:rgba(255,255,255,.86);font-size:14.5px;margin-top:8px}
.pn-welcome-credit{display:inline-flex;align-items:center;gap:8px;margin-top:16px;background:rgba(255,255,255,.14);
    border:1px solid rgba(255,255,255,.24);border-radius:999px;padding:8px 14px;font-size:13.5px;font-weight:700}
.pn-cart-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(280px,1fr);gap:26px;align-items:start}
.pn-checkout-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(300px,1fr);gap:26px;align-items:start}
.pn-dropdown{position:relative;display:inline-block}
.pn-chevron{transition:transform .2s}
.pn-user-btn{display:inline-flex;align-items:center;gap:8px;cursor:pointer}
.pn-avatar{width:34px;height:34px;border-radius:50%;background:var(--dd-tint);color:var(--dd-primary);display:flex;
    align-items:center;justify-content:center;font-weight:800;font-size:14px}
.dd-copy-row{display:flex;align-items:center;gap:8px;justify-content:flex-end}
.dd-mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13.5px}

/* ============================================================
   16. 响应式
   ============================================================ */
@media (max-width:1200px){
    .dd-cols-4{grid-template-columns:repeat(2,minmax(0,1fr))}
    .dd-cols-3{grid-template-columns:repeat(2,minmax(0,1fr))}
    .dd-account{grid-template-columns:1fr}
    .dd-account-nav{position:static}
}
@media (max-width:900px){
    .dd-container,.pn-main{padding-left:20px;padding-right:20px}
    .dd-section{padding:44px 0}
    .dd-cols-2,.dd-cols-3,.dd-cols-4,.dd-form-grid,.pn-cart-grid,.pn-checkout-grid{grid-template-columns:1fr}
    .dd-form-grid .dd-span-2{grid-column:span 1}
    .dd-page-hero{padding:40px 0 44px}
    .dd-page-hero h1{font-size:30px}
    .pn-page-title{font-size:23px}
    .pn-card-body{padding:20px}
    .dd-cta-band{padding:30px 24px}
    .pn-amount-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:600px){
    .dd-section{padding:34px 0}
    .dd-container,.pn-main{padding-left:16px;padding-right:16px}
    .dd-btn{height:42px;min-height:42px;padding:0 16px;font-size:14px}
    .dd-row{align-items:stretch}
    .dd-row>.dd-btn,.dd-row>button.dd-btn,.dd-row>.pn-btn,.dd-row>.btn{width:100%;flex:0 0 auto;height:42px;min-height:42px}
    .dd-row>.dw-input,.dd-row>.pn-input{min-width:0;width:100%;flex:1 1 auto}
    /* dsh-mobile-adapt-2：iOS 聚焦不放大，输入控件字号 ≥16px */
    .dd-footer-news-form input,.dd-row input:not([type="checkbox"]):not([type="radio"]),
    .pn-input,.dd-input,.form-control,.dw-input{font-size:16px !important}
    /* dsh-mobile-adapt-2：帮助文档两列在窄屏单列 */
    .dx-kb{grid-template-columns:minmax(0,1fr) !important}
    /* dsh-mobile-adapt：输入控件字号 ≥16px（iOS 聚焦不放大页面） */
    .pn-input,.dd-input,.form-control,.dw-input,
    select.pn-input,select.form-control,select.dd-input,
    textarea.pn-input,textarea.form-control,textarea.dd-input{font-size:16px}
    /* dsh-mobile-adapt：小字抬到可读下限 */
    .dd-tld-meta{font-size:12px}
    /* dsh-mobile-adapt-3：登录/注册页与页脚订阅框字号 ≥16px（!important 压过后加载的样式表） */
    .dd-auth-card input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
    .dd-auth-card select,.dd-auth-card textarea,
    .auth-card input:not([type="checkbox"]):not([type="radio"]):not([type="hidden"]),
    .auth-card select,.auth-card textarea,
    .dd-input,.form-control,.dd-footer-news-form input{font-size:16px !important}
    /* dsh-mobile-adapt-3：.dd-tld-meta 被 domain-search 的后加载样式表压到 11.5px */
    .dd-tld-meta{font-size:12px !important}
    .dd-tld-name{font-size:13px}
    .dd-cols-2,.dd-cols-3,.dd-cols-4{grid-template-columns:1fr}
    .dd-stat-val{font-size:20px}
    .pn-card-header{padding:15px 18px}
}

/* ============================================================
   17. 暗色模式补充
   ============================================================ */
:root[data-theme="dark"] body{background:var(--dd-bg);color:var(--dd-text)}
:root[data-theme="dark"] .pn-card,:root[data-theme="dark"] .dd-card,
:root[data-theme="dark"] .dd-feature,:root[data-theme="dark"] .dd-step,
:root[data-theme="dark"] .dd-faq-item,:root[data-theme="dark"] .dd-stat,
:root[data-theme="dark"] .pn-stat,:root[data-theme="dark"] .dd-account-nav,
:root[data-theme="dark"] .pn-product-card,:root[data-theme="dark"] .dd-product-card,
:root[data-theme="dark"] .pn-msg{background:var(--dd-card);border-color:var(--dd-line)}
:root[data-theme="dark"] .dd-input,:root[data-theme="dark"] .pn-input,
:root[data-theme="dark"] .form-control{background:#1b1938;border-color:var(--dd-line-strong);color:var(--dd-text)}
:root[data-theme="dark"] .pn-table th,:root[data-theme="dark"] .dd-table th{background:#1c1a3c;color:var(--dd-muted)}
:root[data-theme="dark"] .pn-table td,:root[data-theme="dark"] .dd-table td{border-color:var(--dd-line);color:var(--dd-text)}
:root[data-theme="dark"] .pn-table tbody tr:hover td{background:#1f1d40}
:root[data-theme="dark"] .dd-intro{background:var(--dd-tint-2);border-color:var(--dd-line)}
:root[data-theme="dark"] .pn-alert{border-color:var(--dd-line)}
:root[data-theme="dark"] .dd-tab,:root[data-theme="dark"] .dt-tab{background:var(--dd-card);border-color:var(--dd-line-strong);color:var(--dd-ink)}
:root[data-theme="dark"] .dd-tab.is-active,:root[data-theme="dark"] .dt-tab.is-active{background:var(--dd-primary);color:#fff}
:root[data-theme="dark"] .pn-amount-btn{background:var(--dd-card);border-color:var(--dd-line-strong);color:var(--dd-ink)}
:root[data-theme="dark"] .pn-alert-success{background:var(--dd-success-bg);color:#7fd4a6;border-color:#1f5136}
:root[data-theme="dark"] .pn-alert-error,:root[data-theme="dark"] .pn-alert-danger{background:var(--dd-danger-bg);color:#f0a1a3;border-color:#54262a}
:root[data-theme="dark"] .pn-alert-warning{background:var(--dd-warning-bg);color:#f0c27c;border-color:#4d3a18}
:root[data-theme="dark"] .pn-alert-info{background:var(--dd-info-bg);color:#9dc4ee;border-color:#22405f}

/* ============================================================
   18. 通用工具类（供页面替换行内 style 使用）
   ============================================================ */
.dd-dim{color:var(--dd-muted)}
.dd-fs-11{font-size:12px}
.dd-fs-12{font-size:12px}
.dd-fs-13{font-size:13px}
.dd-fs-14{font-size:14px}
.dd-fs-15{font-size:15px}
.dd-fs-16{font-size:16px}
.dd-fs-18{font-size:18px}
.dd-fs-20{font-size:20px}
.dd-fw-600{font-weight:600}
.dd-fw-700{font-weight:700}
.dd-fw-800{font-weight:800}
.dd-lh-17{line-height:1.7}
.dd-lh-18{line-height:1.8}
.dd-inline{display:inline}
.dd-inline-block{display:inline-block}
.dd-hidden{display:none}
.dd-italic{font-style:italic}
.dd-capitalize{text-transform:capitalize}
.dd-uppercase{text-transform:uppercase}
.dd-overflow-x{overflow-x:auto;-webkit-overflow-scrolling:touch}
.dd-overflow-hidden{overflow:hidden}
.dd-relative{position:relative}
.dd-justify-center{justify-content:center}
.dd-w-auto{width:auto}
.dd-mx-auto{margin-left:auto;margin-right:auto}
.dd-mt-2{margin-top:2px}
.dd-mt-4{margin-top:4px}
.dd-mt-6{margin-top:6px}
.dd-mt-10{margin-top:10px}
.dd-mt-12{margin-top:12px}
.dd-mt-14{margin-top:14px}
.dd-mt-20{margin-top:20px}
.dd-mb-4{margin-bottom:4px}
.dd-mb-6{margin-bottom:6px}
.dd-mb-10{margin-bottom:10px}
.dd-mb-12{margin-bottom:12px}
.dd-mb-14{margin-bottom:14px}
.dd-mb-20{margin-bottom:20px}
.dd-mb-22{margin-bottom:22px}
.dd-mb-28{margin-bottom:28px}
.dd-mw-120{min-width:120px}
.dd-mw-130{min-width:130px}
.dd-mw-150{min-width:150px}
.dd-mw-170{min-width:170px}
.dd-mw-180{min-width:180px}
.dd-mw-200{min-width:200px}
.dd-mw-210{min-width:210px}
.dd-mw-220{min-width:220px}
.dd-mw-230{min-width:230px}
.dd-mw-240{min-width:240px}
.dd-mw-260{min-width:260px}
.dd-w-100{width:100px}
.dd-w-140{width:140px}
.dd-w-200{width:200px}
.dd-w-210{width:210px}
.dd-ml-auto{margin-left:auto}
.dd-m-0{margin:0}
.dd-p-0{padding:0}
.dd-flex{display:flex}
.dd-inline-flex{display:inline-flex}
.dd-flex-wrap{flex-wrap:wrap}
.dd-flex-1{flex:1;min-width:0}
.dd-items-center{align-items:center}
.dd-items-end{align-items:flex-end}
.dd-items-start{align-items:flex-start}
.dd-justify-between{justify-content:space-between}
.dd-justify-end{justify-content:flex-end}
.dd-gap-4{gap:4px}
.dd-gap-6{gap:6px}
.dd-gap-8{gap:8px}
.dd-gap-10{gap:10px}
.dd-gap-12{gap:12px}
.dd-gap-16{gap:16px}
.dd-gap-20{gap:20px}
.dd-grid{display:grid}
.dd-grid-auto{grid-template-columns:repeat(auto-fit,minmax(230px,1fr))}
.dd-grid-auto-2{grid-template-columns:repeat(auto-fit,minmax(300px,1fr))}
.dd-note{margin:0;padding-left:18px;font-size:13px;color:var(--dd-muted);line-height:1.8}
.dd-hr-soft{border:0;border-top:1px solid var(--dd-line);margin:18px 0}
.dd-check-inline{display:flex;align-items:center;gap:6px;font-size:12px;cursor:pointer}
.dd-w-120{width:120px;min-width:120px}
.dd-w-130{width:130px;min-width:130px}
.dd-w-150{width:150px;min-width:150px}
.dd-w-180{width:180px;min-width:180px}
.dd-w-full{width:100%}
.dd-nowrap{white-space:nowrap}
.dd-pre-wrap{white-space:pre-wrap;word-break:break-word}
.dd-text-right{text-align:right}
@media (max-width:600px){
    .dd-grid-auto,.dd-grid-auto-2{grid-template-columns:1fr}
    .dd-w-120,.dd-w-130,.dd-w-150,.dd-w-180{width:100%;min-width:0}
    .dd-w-100,.dd-w-140,.dd-w-200,.dd-w-210{width:auto;max-width:100%}
    .dd-mw-120,.dd-mw-130,.dd-mw-150,.dd-mw-170,.dd-mw-180,.dd-mw-200,.dd-mw-210,.dd-mw-220,.dd-mw-230,.dd-mw-240,.dd-mw-260{min-width:0}
}

/* feature-intro 共享「功能简介」区块（authmodal 之外的复用件，全站多处引用） */
.fi-card{padding:20px 24px;margin-bottom:24px}
.fi-title{font-size:15px;font-weight:800;color:var(--dd-ink);margin-bottom:14px}
.fi-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}
.fi-icon{width:30px;height:30px;border-radius:8px;background:var(--dd-tint);color:var(--dd-primary);display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:15px}
.fi-item-title{font-size:13.5px;font-weight:700;color:var(--dd-text)}
.fi-item-text{font-size:12.5px;color:var(--dd-muted);line-height:1.55;margin-top:2px}
@media (max-width:600px){.fi-grid{grid-template-columns:1fr}}
/* RTL 基础支持 */
[dir="rtl"] .dd-account-link.is-active::before{left:auto;right:0}
[dir="rtl"] .dd-breadcrumb{direction:rtl}

/* ===== 原型级 token 与类（2026-09-26，基于内页版式审计）=====
   7 类页面原型共用：A 营销落地 / B 目录索引 / C 内容长文 / D 工具表单 /
   E 账户支持 / F 清单表格 / G 状态辅助。新页面照这些类与 token 搭。 */
:root{
    --pn-space-block:64px;      /* 区块上下间距 */
    --pn-space-block-sm:48px;   /* 紧凑区块 */
    --pn-space-gap:24px;        /* 栅格间距 */
    --pn-card-pad:22px;         /* 卡片内边距 */
    --pn-h1:clamp(30px,3.4vw,44px);
    --pn-h2:20px;
    --pn-body:15.5px;
    --pn-body-lh:1.72;
    --pn-measure:72ch;          /* 正文最大行宽 */
}
.pn-grid--cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:var(--pn-space-gap)}
.pn-pagination{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:22px}
.pn-pagination a,.pn-pagination span{
    min-width:34px;height:34px;padding:0 10px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid var(--dd-line);border-radius:8px;font-size:13.5px;color:var(--dd-text);text-decoration:none;background:#fff;
}
.pn-pagination a:hover{border-color:var(--dd-primary);color:var(--dd-primary)}
.pn-pagination .is-active{background:var(--dd-primary);border-color:var(--dd-primary);color:#fff}
.pn-lead{font-size:16px;line-height:1.7;color:var(--dd-muted);max-width:var(--pn-measure)}
@media(max-width:720px){
    :root{--pn-space-block:40px;--pn-space-block-sm:32px;--pn-space-gap:14px;--pn-card-pad:18px}
}
:root[data-theme="dark"] .pn-pagination a,
:root[data-theme="dark"] .pn-pagination span{background:#1D1550;border-color:#302568;color:#DCD6F7}

/* ===== 手机版账户区：页头在前、侧栏在后（2026-09-26）=====
   原来 .dd-account 在窄屏按 DOM 顺序堆叠，侧栏（上千像素的导航列表）排在页头之前，
   页头被推到 1500px 以下。这里在窄屏改成纵向 flex 并把主内容 order 提前，侧栏取消吸顶。 */
@media (max-width:1200px){
    /* 注意断点必须与上面 .dd-account 折叠成一列的断点一致（≤1200），否则 721-1200 仍会侧栏在前 */
    .dd-account{display:flex;flex-direction:column;gap:18px}
    .dd-account-main{order:1;min-width:0}
    .dd-account-nav{order:2;position:static;top:auto}
}

/* ===== 账户区窄屏：工具栏换行（2026-09-26）=====
   /account/domains 等页的工具栏是 .dd-flex（不换行），窄屏下把内容撑到 771px → 横向溢出。
   仅在账户区内、且窄屏时允许换行，不影响其它页面的按钮组排版。 */
@media (max-width:900px){
    .dd-account-main .dd-flex{flex-wrap:wrap}
    .dd-account-main .dd-flex > *{min-width:0}
}

/* ===== 账户区窄屏：表格容器滚动（2026-09-26）=====
   /account/domains 的表格最小宽约 456px，窄屏会把整页撑到 474px（横向溢出）。
   做法：卡片作为滚动容器，表格保底 480px 在容器内横向滚动，页面本身不再溢出。 */
@media (max-width:900px){
    /* 表格自身横向滚动（2026-09-26 最终版）
       要点：滚动放在 <table> 自己身上（display:block + overflow-x:auto）；
       放外层（卡片/主容器）会把空态与工具栏一起拉到 480px 宽的画布上 → 被裁或需滚动。 */
    .dd-account-main{min-width:0;max-width:100%}
    .dd-account-main .pn-table{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
    .dd-account-main .pn-empty{min-width:0;max-width:100%}
    .dd-account-main .dd-flex{flex-wrap:wrap}
}