/* =========================================================
   电竞俱乐部搭建系统 · 官网样式
   设计语言：白色卡片 + 靛蓝主色 + 柔和分层阴影
   =======================================================*/

/* ===== 设计 Token ===== */
:root{
    --bg:#f4f6fb;
    --surface:#ffffff;
    --surface-2:#f8fafc;
    --ink:#1e293b;
    --ink-2:#475569;
    --muted:#64748b;
    --line:#e2e8f0;
    --line-strong:#cbd5e1;
    --primary:#4f46e5;
    --primary-d:#4338ca;
    --primary-l:#6366f1;
    --violet:#8b5cf6;
    --dark:#0f172a;
    --dark-2:#1e293b;
    --ok:#0f9f6e;
    --warn:#d97706;
    --danger:#dc2626;
    --info:#2563eb;

    --r-sm:8px;
    --r:12px;
    --r-lg:16px;
    --r-xl:20px;
    --r-pill:999px;

    --shadow-sm:0 1px 2px rgba(30,41,59,.05);
    --shadow:0 8px 24px rgba(30,41,59,.06);
    --shadow-lg:0 20px 48px rgba(30,41,59,.12);
    --shadow-primary:0 12px 28px rgba(79,70,229,.28);

    --maxw:1180px;
    --t:.2s cubic-bezier(.4,0,.2,1);
}

/* ===== 基础重置 ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    background:var(--bg);
    color:var(--ink);
    font-size:15px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--t)}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
input,textarea,select{font-family:inherit}
:focus-visible{outline:2px solid var(--primary-l);outline-offset:2px;border-radius:4px}

/* ===== 布局容器 ===== */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 18px}
.section{padding:56px 0}
.section-sm{padding:40px 0}
.bg-white{background:#fff}
.bg-dark{background:var(--dark);color:#e2e8f0}

/* ===== 区块标题 ===== */
.sec-head{max-width:680px;margin:0 auto 40px;text-align:center}
.sec-eyebrow{
    display:inline-flex;align-items:center;gap:6px;
    font-size:13px;font-weight:600;color:var(--primary);
    background:#eef2ff;border:1px solid #e0e7ff;
    padding:5px 13px;border-radius:var(--r-pill);margin-bottom:14px;
}
.bg-dark .sec-eyebrow{background:rgba(99,102,241,.18);border-color:rgba(129,140,248,.3);color:#c7d2fe}
.sec-title{font-size:27px;font-weight:700;letter-spacing:-.3px;line-height:1.3;color:var(--ink)}
.bg-dark .sec-title{color:#f8fafc}
.sec-sub{margin-top:12px;color:var(--muted);font-size:15px}
.bg-dark .sec-sub{color:#94a3b8}
.sec-head.left{text-align:left;margin-left:0}

/* ===== 按钮 ===== */
.btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border:1px solid transparent;border-radius:var(--r-sm);
    font-size:15px;font-weight:600;line-height:1.2;white-space:nowrap;
    transition:background var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
    cursor:pointer;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-primary)}
.btn-primary:hover{background:var(--primary-d);color:#fff}
.btn-ghost{background:#fff;color:var(--ink-2);border-color:var(--line)}
.btn-ghost:hover{background:var(--surface-2);color:var(--ink);border-color:var(--line-strong)}
.btn-light{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.22)}
.btn-light:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-lg{padding:15px 30px;font-size:16px;border-radius:var(--r)}
.btn-block{width:100%}
.btn svg{flex:none}

/* ===== 顶部导航 ===== */
.navbar{
    position:sticky;top:0;z-index:100;
    background:rgba(255,255,255,.85);
    backdrop-filter:saturate(180%) blur(14px);
    -webkit-backdrop-filter:saturate(180%) blur(14px);
    border-bottom:1px solid var(--line);
}
.nav-in{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--ink)}
.brand .mark{
    width:38px;height:38px;border-radius:var(--r);flex:none;
    background:linear-gradient(135deg,var(--primary-l),var(--violet));
    display:flex;align-items:center;justify-content:center;color:#fff;
    box-shadow:0 6px 14px rgba(99,102,241,.35);
}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-links a{
    padding:8px 14px;border-radius:var(--r-sm);font-size:14.5px;font-weight:500;
    color:var(--ink-2);
}
.nav-links a:hover{background:var(--surface-2);color:var(--ink)}
.nav-cta{display:flex;align-items:center;gap:10px}
.nav-toggle{
    display:none;width:44px;height:44px;border:none;background:transparent;
    align-items:center;justify-content:center;border-radius:var(--r-sm);
}
.nav-toggle span{position:relative;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:var(--t)}
.nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:22px;height:2px;background:var(--ink);border-radius:2px;transition:var(--t);
}
.nav-toggle span::before{top:-7px}
.nav-toggle span::after{top:7px}
body.menu-open .nav-toggle span{background:transparent}
body.menu-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.menu-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

/* 移动端菜单 */
.mobile-menu{
    display:none;position:fixed;inset:64px 0 0;z-index:99;background:#fff;
    padding:20px 18px;flex-direction:column;gap:4px;overflow-y:auto;
}
body.menu-open .mobile-menu{display:flex}
.mobile-menu a{padding:14px 12px;font-size:16px;font-weight:500;color:var(--ink);border-radius:var(--r);display:flex;align-items:center;justify-content:space-between}
.mobile-menu a:hover{background:var(--surface-2)}
.mobile-menu .btn{margin-top:14px}

/* ===== Hero ===== */
.hero{position:relative;padding:64px 0 56px;background:linear-gradient(180deg,#eef2ff 0%,#f4f6fb 100%);overflow:hidden}
.hero::before{
    content:"";position:absolute;inset:0;pointer-events:none;
    background-image:linear-gradient(rgba(99,102,241,.07) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(99,102,241,.07) 1px,transparent 1px);
    background-size:44px 44px;
    mask-image:radial-gradient(ellipse 80% 70% at 50% 0%,#000 30%,transparent 75%);
    -webkit-mask-image:radial-gradient(ellipse 80% 70% at 50% 0%,#000 30%,transparent 75%);
}
.hero-in{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-badge{
    display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;
    color:var(--primary);background:#fff;border:1px solid #e0e7ff;
    padding:6px 14px;border-radius:var(--r-pill);margin-bottom:20px;box-shadow:var(--shadow-sm);
}
.hero-badge .pulse{width:8px;height:8px;border-radius:50%;background:var(--ok);position:relative}
.hero-badge .pulse::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid var(--ok);opacity:.5;animation:pulse 2s infinite}
@keyframes pulse{0%{transform:scale(.8);opacity:.7}100%{transform:scale(1.6);opacity:0}}
.hero h1{font-size:40px;font-weight:800;line-height:1.2;letter-spacing:-.8px;color:var(--ink)}
.hero h1 .hl{
    background:linear-gradient(120deg,var(--primary),var(--violet));
    -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;color:transparent;
}
.hero-desc{margin-top:18px;font-size:16.5px;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap}
.hero-meta{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap}
.hero-meta .item .k{font-size:22px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums}
.hero-meta .item .v{font-size:13px;color:var(--muted);margin-top:2px}

/* Hero 产品界面 mockup */
.hero-visual{position:relative}
.mockup{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--shadow-lg);overflow:hidden;position:relative;z-index:2;
}
.mockup-bar{display:flex;align-items:center;gap:7px;padding:12px 16px;background:var(--surface-2);border-bottom:1px solid var(--line)}
.mockup-bar i{width:11px;height:11px;border-radius:50%;display:block}
.mockup-bar .url{flex:1;height:22px;background:#fff;border-radius:var(--r-pill);border:1px solid var(--line);margin-left:8px}
.mockup-body{padding:18px}
.mockup-card{
    background:linear-gradient(120deg,var(--primary) 0%,var(--violet) 100%);
    border-radius:var(--r);padding:18px;color:#fff;margin-bottom:14px;position:relative;overflow:hidden;
}
.mockup-card::after{content:"";position:absolute;right:-30px;top:-40px;width:130px;height:130px;border-radius:50%;background:rgba(255,255,255,.12)}
.mockup-card .t{font-size:12px;opacity:.85}
.mockup-card .b{font-size:20px;font-weight:700;margin:4px 0}
.mockup-card .s{font-size:12px;opacity:.9}
.mockup-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.mockup-ico{display:flex;flex-direction:column;align-items:center;gap:6px;font-size:11px;color:var(--muted)}
.mockup-ico .ic{width:40px;height:40px;border-radius:var(--r-sm);background:var(--surface-2);display:flex;align-items:center;justify-content:center;color:var(--ink-2)}
.mockup-row{margin-top:14px;height:12px;border-radius:var(--r-pill);background:var(--surface-2);position:relative;overflow:hidden}
.mockup-row::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.9),transparent);animation:shimmer 2.4s infinite}
.mockup-row.short{width:65%}
@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}
.hero-blob{position:absolute;border-radius:50%;filter:blur(8px);z-index:1}
.hero-blob.b1{width:120px;height:120px;background:rgba(99,102,241,.18);top:-30px;right:-30px}
.hero-blob.b2{width:90px;height:90px;background:rgba(139,92,246,.16);bottom:-24px;left:-24px}

/* ===== 功能网格 ===== */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.feature-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:24px 20px;transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#c7d2fe}
.feature-ico{
    width:48px;height:48px;border-radius:var(--r);margin-bottom:14px;
    background:linear-gradient(135deg,#eef2ff,#f5f3ff);color:var(--primary);
    display:flex;align-items:center;justify-content:center;
}
.feature-card h3{font-size:16px;font-weight:700;margin-bottom:7px}
.feature-card p{font-size:13.5px;color:var(--muted);line-height:1.65}

/* ===== 核心优势 ===== */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.adv-card{
    display:flex;gap:16px;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-lg);padding:22px;
}
.adv-ico{width:44px;height:44px;border-radius:var(--r);background:#ecfdf5;color:var(--ok);display:flex;align-items:center;justify-content:center;flex:none}
.adv-card h3{font-size:15.5px;font-weight:700;margin-bottom:6px}
.adv-card p{font-size:13.5px;color:var(--muted)}

/* ===== 安全保障（深色） ===== */
.sec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.sec-card{
    background:rgba(255,255,255,.04);border:1px solid rgba(148,163,184,.16);
    border-radius:var(--r);padding:20px;transition:background var(--t),border-color var(--t);
}
.sec-card:hover{background:rgba(255,255,255,.08);border-color:rgba(129,140,248,.4)}
.sec-card .ic{width:40px;height:40px;border-radius:var(--r-sm);background:rgba(99,102,241,.2);color:#a5b4fc;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.sec-card h3{font-size:14.5px;font-weight:600;color:#f1f5f9;margin-bottom:6px}
.sec-card p{font-size:12.5px;color:#94a3b8;line-height:1.6}
.sec-note{
    margin-top:28px;display:flex;align-items:center;gap:12px;justify-content:center;
    background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.28);
    border-radius:var(--r);padding:16px 22px;color:#a7f3d0;font-size:14px;text-align:center;
}

/* ===== 流程时间轴 ===== */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;position:relative}
.flow-item{position:relative;text-align:center;padding:0 10px}
.flow-item .node{
    width:56px;height:56px;border-radius:50%;margin:0 auto 16px;
    background:#fff;border:2px solid #c7d2fe;color:var(--primary);
    display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;
    position:relative;z-index:2;box-shadow:var(--shadow);
}
.flow-item:not(:last-child)::before{
    content:"";position:absolute;top:28px;left:calc(50% + 32px);width:calc(100% - 64px);height:2px;
    background:linear-gradient(90deg,#c7d2fe,#e0e7ff);z-index:1;
}
.flow-item h3{font-size:15px;font-weight:700;margin-bottom:6px}
.flow-item p{font-size:13px;color:var(--muted);line-height:1.6}

/* ===== 套餐 ===== */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.plan-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
    padding:28px 24px;display:flex;flex-direction:column;position:relative;
    transition:transform var(--t),box-shadow var(--t);
}
.plan-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.plan-card.featured{border-color:var(--primary);box-shadow:var(--shadow-primary)}
.plan-tag{
    position:absolute;top:-12px;left:50%;transform:translateX(-50%);
    background:linear-gradient(120deg,var(--primary),var(--violet));color:#fff;
    font-size:12px;font-weight:600;padding:4px 14px;border-radius:var(--r-pill);white-space:nowrap;
}
.plan-name{font-size:18px;font-weight:700}
.plan-price{margin:14px 0;font-size:15px;color:var(--primary);font-weight:700}
.plan-price .ask{font-size:14px;background:#eef2ff;padding:5px 12px;border-radius:var(--r-pill)}
.plan-desc{font-size:13px;color:var(--muted);margin-bottom:16px}
.plan-list{display:flex;flex-direction:column;gap:10px;margin-bottom:22px;flex:1}
.plan-list li{display:flex;align-items:flex-start;gap:9px;font-size:13.5px;color:var(--ink-2)}
.plan-list .ck{color:var(--ok);flex:none;margin-top:2px}
.plan-list li.off{color:#94a3b8}
.plan-list li.off .ck{color:#cbd5e1}

/* ===== FAQ ===== */
.faq-wrap{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;background:none;border:none;text-align:left;
    font-size:15px;font-weight:600;color:var(--ink);cursor:pointer;
}
.faq-q .icon{flex:none;width:24px;height:24px;border-radius:50%;background:var(--surface-2);display:flex;align-items:center;justify-content:center;color:var(--primary);transition:transform var(--t)}
.faq-item.open .faq-q .icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 22px 18px;font-size:14px;color:var(--muted);line-height:1.75}

/* ===== 咨询对接 ===== */
.contact-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:24px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{margin-bottom:16px;display:flex;flex-direction:column;gap:7px}
.form-group label{font-size:13.5px;font-weight:600;color:var(--ink-2)}
.form-group label .req{color:var(--danger)}
.form-control{
    width:100%;padding:12px 14px;border:1px solid var(--line-strong);border-radius:var(--r-sm);
    font-size:15px;color:var(--ink);background:#fff;transition:border-color var(--t),box-shadow var(--t);
}
.form-control:focus{border-color:var(--primary-l);box-shadow:0 0 0 3px rgba(99,102,241,.15);outline:none}
textarea.form-control{min-height:110px;resize:vertical}
.form-control.invalid{border-color:var(--danger)}
.field-error{font-size:12.5px;color:var(--danger);display:none}
.field-error.show{display:block}
/* 联系方式类型单选 */
.radio-group{display:flex;gap:8px;flex-wrap:wrap}
.radio-pill{position:relative}
.radio-pill input{position:absolute;opacity:0;pointer-events:none}
.radio-pill span{
    display:inline-flex;align-items:center;gap:6px;padding:9px 16px;border:1px solid var(--line-strong);
    border-radius:var(--r-pill);font-size:13.5px;font-weight:500;color:var(--ink-2);cursor:pointer;transition:var(--t);
}
.radio-pill input:checked + span{background:var(--primary);border-color:var(--primary);color:#fff}
.radio-pill input:focus-visible + span{outline:2px solid var(--primary-l);outline-offset:2px}
/* 需求快捷选择 */
.chip-group{display:flex;gap:8px;flex-wrap:wrap}
.chip{position:relative}
.chip input{position:absolute;opacity:0;pointer-events:none}
.chip span{padding:8px 14px;border:1px solid var(--line-strong);border-radius:var(--r-pill);font-size:13px;color:var(--ink-2);cursor:pointer;transition:var(--t);display:inline-block}
.chip input:checked + span{background:#eef2ff;border-color:var(--primary-l);color:var(--primary)}
/* 蜜罐（对用户隐藏，机器人填写即拦截） */
.hp-field{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-privacy{font-size:12.5px;color:var(--muted);display:flex;gap:8px;align-items:flex-start;margin:6px 0 16px}
.form-privacy input{margin-top:3px;accent-color:var(--primary)}

/* 联系卡片 */
.contact-side{display:flex;flex-direction:column;gap:14px}
.contact-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:20px;
    display:flex;align-items:center;gap:14px;
}
.contact-item .ic{width:46px;height:46px;border-radius:var(--r);display:flex;align-items:center;justify-content:center;flex:none}
.ic.wechat{background:#ecfdf5;color:#059669}
.ic.qq{background:#eff6ff;color:#2563eb}
.ic.phone{background:#fffbeb;color:#d97706}
.ic.online{background:#f5f3ff;color:#7c3aed}
.contact-item .info{flex:1;min-width:0}
.contact-item .info .k{font-size:12.5px;color:var(--muted)}
.contact-item .info .v{font-size:15px;font-weight:700;color:var(--ink);word-break:break-all}
.copy-btn{
    border:1px solid var(--line);background:var(--surface-2);color:var(--ink-2);
    padding:8px 13px;border-radius:var(--r-sm);font-size:13px;font-weight:600;transition:var(--t);flex:none;
}
.copy-btn:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.contact-work{background:var(--dark);border-radius:var(--r-lg);padding:20px;color:#e2e8f0;display:flex;align-items:center;gap:12px}
.contact-work .ic{background:rgba(99,102,241,.25);color:#a5b4fc}
.contact-work .k{font-size:12.5px;color:#94a3b8}
.contact-work .v{font-size:14.5px;font-weight:600}

/* ===== 最终 CTA ===== */
.cta-band{
    background:linear-gradient(120deg,var(--primary),var(--violet));
    border-radius:var(--r-xl);padding:48px 40px;text-align:center;color:#fff;
    position:relative;overflow:hidden;
}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.1)}
.cta-band h2{font-size:28px;font-weight:800;margin-bottom:12px;position:relative}
.cta-band p{font-size:15.5px;opacity:.92;margin-bottom:26px;position:relative}
.cta-band .btn{position:relative}

/* ===== 页脚 ===== */
.footer{background:var(--dark);color:#94a3b8;padding:48px 0 28px;font-size:13.5px}
.footer-in{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:32px;margin-bottom:32px}
.footer .brand{color:#f8fafc;margin-bottom:14px}
.footer p{line-height:1.7;color:#94a3b8}
.footer h4{font-size:14px;color:#e2e8f0;margin-bottom:14px;font-weight:600}
.footer-links{display:flex;flex-direction:column;gap:9px}
.footer-links a{color:#94a3b8}
.footer-links a:hover{color:#c7d2fe}
.footer-bottom{border-top:1px solid rgba(148,163,184,.15);padding-top:22px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;align-items:center}
.footer-compliance{font-size:12.5px;color:#64748b;line-height:1.7;max-width:680px}

/* ===== 浮动客服 ===== */
.float-service{position:fixed;right:18px;bottom:18px;z-index:90;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.float-panel{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-lg);
    padding:10px;width:190px;display:none;flex-direction:column;gap:2px;
}
.float-panel.open{display:flex}
.float-panel a{display:flex;align-items:center;gap:10px;padding:11px 12px;border-radius:var(--r-sm);font-size:14px;font-weight:500;color:var(--ink-2)}
.float-panel a:hover{background:var(--surface-2)}
.float-panel a .ic{width:32px;height:32px;border-radius:var(--r-sm);display:flex;align-items:center;justify-content:center;flex:none}
.float-btn{
    width:56px;height:56px;border-radius:50%;border:none;
    background:linear-gradient(135deg,var(--primary),var(--violet));color:#fff;
    display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow-primary);
    transition:transform var(--t);
}
.float-btn:hover{transform:scale(1.06)}
.float-btn .close-ic{display:none}
.float-service.toggled .float-btn .headset-ic{display:none}
.float-service.toggled .float-btn .close-ic{display:block}

/* ===== Toast ===== */
.toast-wrap{position:fixed;left:18px;right:18px;bottom:86px;z-index:200;display:flex;flex-direction:column;gap:10px;pointer-events:none}
.toast{
    background:var(--dark);color:#fff;border-radius:var(--r);padding:13px 18px;
    font-size:14px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:10px;
    animation:toastIn .28s ease;max-width:420px;
}
.toast .ic{flex:none;color:#6ee7b7}
.toast.err .ic{color:#fca5a5}
@keyframes toastIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
@media(min-width:640px){.toast-wrap{left:auto;right:18px;bottom:18px;max-width:380px}}

/* ===== 滚动揭示动画 ===== */
.reveal{transition:opacity .6s ease,transform .6s ease}
body.js-anim .reveal{opacity:0;transform:translateY(24px)}
body.js-anim .reveal.visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
    body.js-anim .reveal{opacity:1;transform:none;transition:none}
    html{scroll-behavior:auto}
    .hero-badge .pulse::after,.mockup-row::after{animation:none}
}

/* ===== 响应式（平板/手机） ===== */
@media(max-width:1024px){
    .feature-grid,.sec-grid{grid-template-columns:repeat(2,1fr)}
    .hero h1{font-size:34px}
    .flow{grid-template-columns:repeat(2,1fr);gap:24px}
    .flow-item:not(:last-child)::before{display:none}
}
@media(max-width:860px){
    .nav-links,.nav-cta .btn{display:none}
    .nav-toggle{display:flex}
    .hero-in{grid-template-columns:1fr;gap:40px}
    .hero-visual{max-width:440px;margin:0 auto;width:100%}
    .adv-grid,.plan-grid,.contact-grid,.footer-in{grid-template-columns:1fr}
    .form-row{grid-template-columns:1fr}
}
@media(max-width:600px){
    body{font-size:14.5px}
    .section{padding:44px 0}
    .container{padding:0 16px}
    .hero{padding:44px 0 40px}
    .hero h1{font-size:29px}
    .hero-desc{font-size:15px}
    .hero-meta{gap:18px}
    .sec-title{font-size:23px}
    .feature-grid,.sec-grid,.adv-grid{grid-template-columns:1fr}
    .plan-grid{grid-template-columns:1fr}
    .cta-band{padding:36px 22px}
    .cta-band h2{font-size:23px}
    .form-card{padding:22px 18px}
    .footer-bottom{flex-direction:column;align-items:flex-start}
}