/* ============================================================
   建工云平台 — Complete Stylesheet (Dual Theme)
   ============================================================ */

/* ===== THEME VARIABLES ===== */
:root {
  --p: #1E3A8A; --p2: #152C6B;
  --a: #3B82F6; --a2: #2563EB; --a3: #60A5FA;
  --s: #10B981; --e: #EF4444; --w: #F59E0B;
  --rs: 6px; --r: 10px; --rl: 14px; --rxl: 20px;
  --fs: "Microsoft YaHei","PingFang SC","Noto Sans SC","Helvetica Neue",system-ui,sans-serif;
  --fm: "Cascadia Code","Fira Code",Consolas,monospace;
  --nh: 64px; --mw: 1200px; --cp: 24px;
}
[data-theme="light"], :root {
  --bg: #FFFFFF; --bg2: #F1F5F9; --bg3: #E2E8F0;
  --t: #0F172A; --t2: #475569; --t3: #94A3B8;
  --b: #E2E8F0; --b2: #F1F5F9; --sh: rgba(0,0,0,0.08);
  --card: #FFFFFF; --card-hov: #F8FAFC;
  --hero-bg: linear-gradient(135deg,#0F172A 0%,#1E3A8A 50%,#1D4ED8 100%);
  --s-glow: 0 0 20px rgba(59,130,246,0.15);
}
[data-theme="dark"] {
  --bg: #0B1120; --bg2: #131C31; --bg3: #1E293B;
  --t: #F1F5F9; --t2: #94A3B8; --t3: #64748B;
  --b: #1E293B; --b2: #131C31; --sh: rgba(0,0,0,0.3);
  --card: #131C31; --card-hov: #1A2744;
  --hero-bg: linear-gradient(135deg,#020617 0%,#0F172A 50%,#1E3A8A 100%);
  --s-glow: 0 0 20px rgba(59,130,246,0.08);
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]):not([data-theme="dark"]) {
    --bg: #0B1120; --bg2: #131C31; --bg3: #1E293B;
    --t: #F1F5F9; --t2: #94A3B8; --t3: #64748B;
    --b: #1E293B; --b2: #131C31; --sh: rgba(0,0,0,0.3);
    --card: #131C31; --card-hov: #1A2744;
    --hero-bg: linear-gradient(135deg,#020617 0%,#0F172A 50%,#1E3A8A 100%);
    --s-glow: 0 0 20px rgba(59,130,246,0.08);
  }
}

/* ===== 多主题扩展（V1.2，全 CSS 变量换肤、零图片）===== */
/* 蔚蓝 Azure（科技蓝） */
[data-theme="azure"] {
  --p: #0B4F9E; --p2: #083A78;
  --a: #1D7BD8; --a2: #0B5FBF; --a3: #6FB3F5;
  --bg: #F5F9FE; --bg2: #EAF3FC; --bg3: #D6E7F7;
  --t: #0B2447; --t2: #3E5C7E; --t3: #8FA9C7;
  --b: #D6E7F7; --b2: #EAF3FC; --sh: rgba(11,79,158,0.10);
  --card: #FFFFFF; --card-hov: #F0F7FD;
  --hero-bg: linear-gradient(135deg,#06294F 0%,#0B4F9E 50%,#1D7BD8 100%);
  --s-glow: 0 0 20px rgba(29,123,216,0.18);
}
/* 青绿 Emerald（清新） */
[data-theme="emerald"] {
  --p: #0F766E; --p2: #0B5F57;
  --a: #14B8A6; --a2: #0D9488; --a3: #5EEAD4;
  --bg: #F4FAF9; --bg2: #E8F5F2; --bg3: #D0EAE3;
  --t: #06322E; --t2: #3E6E68; --t3: #87AFA8;
  --b: #D0EAE3; --b2: #E8F5F2; --sh: rgba(15,118,110,0.10);
  --card: #FFFFFF; --card-hov: #EFF9F6;
  --hero-bg: linear-gradient(135deg,#042F2B 0%,#0F766E 50%,#14B8A6 100%);
  --s-glow: 0 0 20px rgba(20,184,166,0.18);
}
/* 暖阳 Amber（温暖橙） */
[data-theme="amber"] {
  --p: #B45309; --p2: #92400E;
  --a: #F59E0B; --a2: #D97706; --a3: #FCD34D;
  --bg: #FDF9F3; --bg2: #FAF1E3; --bg3: #F0DFC2;
  --t: #431407; --t2: #7C5A3A; --t3: #B79A76;
  --b: #F0DFC2; --b2: #FAF1E3; --sh: rgba(180,83,9,0.10);
  --card: #FFFFFF; --card-hov: #FCF4E7;
  --hero-bg: linear-gradient(135deg,#3B1804 0%,#92400E 50%,#F59E0B 100%);
  --s-glow: 0 0 20px rgba(245,158,11,0.18);
}
/* 罗兰 Violet（科技紫） */
[data-theme="violet"] {
  --p: #5B21B6; --p2: #451A85;
  --a: #8B5CF6; --a2: #7C3AED; --a3: #C4B5FD;
  --bg: #FAF7FE; --bg2: #F1EBFC; --bg3: #E3D9F6;
  --t: #2A1263; --t2: #5A4784; --t3: #9889B8;
  --b: #E3D9F6; --b2: #F1EBFC; --sh: rgba(91,33,182,0.10);
  --card: #FFFFFF; --card-hov: #F6F1FD;
  --hero-bg: linear-gradient(135deg,#1E0A45 0%,#5B21B6 50%,#8B5CF6 100%);
  --s-glow: 0 0 20px rgba(139,92,246,0.18);
}
/* 午夜 Midnight（深蓝黑深色变体） */
[data-theme="midnight"] {
  --bg: #0B1220; --bg2: #111C30; --bg3: #1C2B4A;
  --t: #EAF0FA; --t2: #93A6C4; --t3: #5D6F8F;
  --b: #1C2B4A; --b2: #111C30; --sh: rgba(0,0,0,0.35);
  --card: #111C30; --card-hov: #17253F;
  --hero-bg: linear-gradient(135deg,#04070E 0%,#0B1220 50%,#1E3A8A 100%);
  --s-glow: 0 0 20px rgba(59,130,246,0.10);
}

/* ===== RESET ===== */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--fs);font-size:16px;line-height:1.7;color:var(--t);background:var(--bg);padding-top:var(--nh);min-height:100vh;transition:.3s}
a{color:var(--a);text-decoration:none;transition:.15s}
a:hover{color:var(--a2)}
button{font-family:inherit;cursor:pointer;border:none;outline:none;transition:.15s}
input,textarea,select{font-family:inherit;font-size:inherit;outline:none;transition:.15s}
ul,ol{list-style:none}

/* ===== UTILITY ===== */
.c{max-width:var(--mw);margin:0 auto;padding:0 var(--cp)}
.sec{padding:64px 0}
.st{font-size:28px;font-weight:700;color:var(--t);margin-bottom:8px}
.sst{font-size:16px;color:var(--t2);margin-bottom:32px}
.shdr{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:24px}
.shdr .st{margin-bottom:4px}.shdr .sst{margin-bottom:0}

/* ===== BUTTONS ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 22px;font-size:15px;font-weight:600;border-radius:var(--r);white-space:nowrap}
.btn:active{transform:scale(.97)}
.btn-primary{background:var(--a);color:#fff}
.btn-primary:hover{background:var(--a2);box-shadow:0 4px 15px rgba(59,130,246,.3)}
.btn-outline{background:transparent;color:var(--t);border:2px solid var(--b)}
.btn-outline:hover{border-color:var(--a);color:var(--a)}
.btn-ghost{background:transparent;color:var(--t2)}
.btn-ghost:hover{background:var(--bg2);color:var(--t)}
.btn-sm{padding:6px 14px;font-size:13px}
.btn-lg{padding:14px 32px;font-size:17px;border-radius:var(--rl)}

/* ===== SECTION DIVIDERS ===== */
.sec-divider{height:1px;background:linear-gradient(90deg,transparent,var(--a),transparent);opacity:.3;margin:0}
.sec-alt{background:var(--bg2)}

/* ===== NAVBAR ===== */
.navbar{position:fixed;top:0;left:0;right:0;height:var(--nh);background:rgba(15,23,42,.95);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);z-index:1000;border-bottom:1px solid rgba(255,255,255,.06)}
.navbar .c{display:flex;align-items:center;justify-content:space-between;height:100%}
.nav-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;text-decoration:none;white-space:nowrap}
.nav-logo:hover{color:#fff;opacity:.9}
.nav-logo-icon{width:34px;height:34px;background:linear-gradient(135deg,var(--a),#8B5CF6);border-radius:var(--rs);display:flex;align-items:center;justify-content:center;font-size:18px;color:#fff;flex-shrink:0}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{color:rgba(255,255,255,.7);padding:8px 14px;border-radius:var(--rs);font-size:14px;font-weight:500;text-decoration:none;transition:.15s}
.nav-links a:hover,.nav-links a.active{color:#fff;background:rgba(255,255,255,.1)}
.nav-right{display:flex;align-items:center;gap:8px}

/* Theme Toggle */
.theme-toggle{width:36px;height:36px;border-radius:50%;background:rgba(255,255,255,.1);color:rgba(255,255,255,.7);font-size:16px;display:flex;align-items:center;justify-content:center;transition:.15s;flex-shrink:0}
.theme-toggle:hover{background:rgba(255,255,255,.18);color:#fff}

/* 导航栏站点图标（V1.2：服务端品牌图标） */
.nav-logo-icon img{width:24px;height:24px;border-radius:6px;object-fit:contain;display:block}

/* 主题下拉菜单（V1.2） */
.theme-menu{position:absolute;top:calc(var(--nh) + 6px);right:24px;z-index:1001;min-width:168px;background:var(--card);border:1px solid var(--b);border-radius:var(--r);box-shadow:0 10px 40px var(--sh);padding:6px;display:block}
.theme-menu-title{padding:6px 12px 4px;font-size:12px;font-weight:600;color:var(--t3)}
.theme-menu-item{display:flex;align-items:center;gap:8px;padding:7px 12px;border-radius:var(--rs);cursor:pointer;color:var(--t2);font-size:13px;transition:.15s}
.theme-menu-item:hover{background:var(--bg2);color:var(--t)}
.theme-menu-item.active{background:var(--bg2);color:var(--a);font-weight:600}
.theme-menu-item .theme-menu-check{margin-left:auto;color:var(--a);font-size:13px}

/* Auth Buttons in Nav */
.nav-auth{display:flex;align-items:center;gap:6px}
.nav-auth .btn-login{padding:7px 16px;border-radius:var(--rs);background:var(--a);color:#fff;font-size:13px;font-weight:600}
.nav-auth .btn-login:hover{background:var(--a2)}
.nav-auth .btn-reg{padding:7px 16px;border-radius:var(--rs);background:transparent;color:rgba(255,255,255,.8);border:1px solid rgba(255,255,255,.25);font-size:13px}
.nav-auth .btn-reg:hover{background:rgba(255,255,255,.1);color:#fff}

/* User Avatar Dropdown */
.user-avatar-btn{position:relative;display:flex;align-items:center;gap:6px;padding:5px 10px 5px 5px;border-radius:20px;background:rgba(255,255,255,.1);color:#fff;font-size:13px;cursor:pointer;transition:.15s}
.user-avatar-btn:hover{background:rgba(255,255,255,.18)}
.user-avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--a),#8B5CF6);display:flex;align-items:center;justify-content:center;font-size:14px;color:#fff;flex-shrink:0}
.user-dropdown{position:absolute;top:calc(100% + 8px);right:0;min-width:180px;background:var(--card);border:1px solid var(--b);border-radius:var(--r);box-shadow:0 10px 40px var(--sh);padding:6px;display:none;z-index:100}
.user-dropdown.show{display:block}
.user-dropdown a,.user-dropdown button{display:flex;align-items:center;gap:8px;padding:10px 14px;border-radius:var(--rs);font-size:14px;color:var(--t);background:none;width:100%;text-align:left}
.user-dropdown a:hover,.user-dropdown button:hover{background:var(--bg2);color:var(--a)}
.user-dropdown .logout-btn{color:var(--e);border-top:1px solid var(--b);margin-top:4px;padding-top:12px}
.user-dropdown .logout-btn:hover{color:var(--e);background:#FEF2F2}
.user-badge{font-size:10px;padding:1px 6px;border-radius:6px;background:var(--a);color:#fff;font-weight:600;margin-left:2px;white-space:nowrap}

.nav-search{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:var(--r);padding:7px 14px;transition:.15s}
.nav-search:focus-within{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.25)}
.nav-search input{background:transparent;border:none;color:#fff;font-size:14px;width:140px}
.nav-search input::placeholder{color:rgba(255,255,255,.4)}
.nav-hamburger{display:none;background:none;color:#fff;font-size:24px;padding:8px;border-radius:var(--rs)}
.nav-hamburger:hover{background:rgba(255,255,255,.1)}

/* ===== CAROUSEL HERO ===== */
.carousel-hero{position:relative;overflow:hidden;min-height:460px;display:flex;align-items:center}
.carousel-track{display:flex;transition:transform .6s cubic-bezier(.4,0,.2,1);width:100%}
.carousel-slide{min-width:100%;padding:80px 0 60px;text-align:center;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
.carousel-slide::before{content:'';position:absolute;top:-50%;right:-30%;width:500px;height:500px;border-radius:50%;background:rgba(255,255,255,.03);pointer-events:none}
.carousel-slide::after{content:attr(data-deco);position:absolute;bottom:-20px;left:-20px;font-size:200px;opacity:.04;pointer-events:none}
.carousel-content{position:relative;z-index:2;max-width:700px;margin:0 auto;padding:0 var(--cp)}
.carousel-content .hero-badge{display:inline-block;padding:6px 20px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);border-radius:20px;font-size:13px;margin-bottom:20px;backdrop-filter:blur(4px);color:rgba(255,255,255,.8)}
.carousel-content h1{font-size:42px;font-weight:800;margin-bottom:14px;line-height:1.2;color:#fff}
.carousel-content p{font-size:16px;color:rgba(255,255,255,.65);margin-bottom:28px;line-height:1.7}
.carousel-cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.carousel-cta .btn-outline{border-color:rgba(255,255,255,.35);color:#fff}
.carousel-cta .btn-outline:hover{background:rgba(255,255,255,.1);border-color:#fff}

.carousel-indicators{position:absolute;bottom:24px;left:50%;transform:translateX(-50%);display:flex;gap:8px;z-index:5}
.carousel-dot{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.3);cursor:pointer;transition:.3s;border:none}
.carousel-dot.active{width:28px;border-radius:4px;background:#fff}

/* ===== NAV SITE GRID ===== */
.nav-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(100px,1fr));gap:12px}
.nav-grid-item{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 8px;border-radius:var(--r);background:var(--card);border:1px solid var(--b);cursor:pointer;transition:.2s;text-decoration:none;color:var(--t)}
.nav-grid-item:hover{transform:translateY(-3px);box-shadow:0 8px 25px var(--sh);border-color:var(--a);color:var(--t)}
.nav-grid-item .nav-icon{width:44px;height:44px;border-radius:var(--rs);display:flex;align-items:center;justify-content:center;font-size:22px;transition:.2s}
.nav-grid-item:hover .nav-icon{transform:scale(1.1)}
.nav-grid-item .nav-label{font-size:12px;font-weight:500;text-align:center;line-height:1.3}
.nav-grid-item .nav-badge{font-size:9px;padding:1px 6px;border-radius:6px;background:var(--bg2);color:var(--t3)}
.nav-grid-item .nav-badge.paid{background:#FEF3C7;color:#D97706}

/* Toolbox horizontal grid */
#tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:12px}
#tool-grid .card-img{width:100px;min-height:auto;height:auto;font-size:32px;flex-shrink:0;border-radius:var(--rl) 0 0 var(--rl)}
#tool-grid .card-body{padding:14px}
#tool-grid .card-desc{font-size:12px}

/* Section Header with accent line */
.sec-header-accent{position:relative;padding-left:16px;margin-bottom:24px}
.sec-header-accent::before{content:'';position:absolute;left:0;top:4px;bottom:4px;width:3px;border-radius:2px;background:linear-gradient(180deg,var(--a),#8B5CF6)}
.sec-header-accent .st{font-size:22px;margin-bottom:2px}
.sec-header-accent .sst{font-size:14px;margin-bottom:0}

/* ===== CARDS ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.card{background:var(--card);border:1px solid var(--b);border-radius:var(--rl);overflow:hidden;transition:.25s;cursor:pointer}
.card:hover{transform:translateY(-4px);box-shadow:0 12px 35px var(--sh);border-color:var(--a)}
.card-img{height:140px;display:flex;align-items:center;justify-content:center;font-size:44px}
.card[style*="flex-direction:row"] .card-img{border-radius:var(--rl) 0 0 var(--rl)}
.card-body{padding:18px}
.card-tag{display:inline-block;padding:3px 10px;background:#DBEAFE;color:var(--p);font-size:11px;font-weight:600;border-radius:10px;margin-bottom:8px}
.tag-chips{display:flex;flex-wrap:wrap;gap:6px;margin-top:8px}
.tag-chip{display:inline-block;padding:2px 9px;background:rgba(59,130,246,.1);color:#60A5FA;font-size:11px;border:1px solid rgba(59,130,246,.25);border-radius:8px;font-weight:500}
.card-title{font-size:16px;font-weight:700;margin-bottom:6px;color:var(--t);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-desc{font-size:13px;color:var(--t2);line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;gap:12px;margin-top:10px;font-size:12px;color:var(--t3)}
.card-footer{padding:12px 18px;border-top:1px solid var(--b2);display:flex;justify-content:space-between;font-size:12px;color:var(--t3)}

/* ===== PROMOTION RANKINGS ===== */
.rank-list{display:flex;flex-direction:column;gap:6px}
.rank-item{display:flex;align-items:center;gap:10px;padding:10px 14px;border-radius:var(--r);background:var(--card);border:1px solid var(--b);transition:.2s}
.rank-item.top{background:linear-gradient(135deg,rgba(251,191,36,.08),transparent);border-color:rgba(251,191,36,.2)}
.rank-pos{font-size:16px;width:32px;text-align:center;flex-shrink:0}
.rank-avatar{font-size:22px;flex-shrink:0}
.rank-info{flex:1}
.rank-name{font-size:14px;font-weight:600;color:var(--t)}
.rank-level{font-size:11px;color:var(--t3)}
.rank-amt{font-size:14px;font-weight:700;color:var(--s);white-space:nowrap}

/* ===== ACTIVITY FEED ===== */
.feed-list{display:flex;flex-direction:column;gap:4px}
.feed-item{display:flex;align-items:center;gap:10px;padding:8px 12px;border-radius:var(--r);font-size:14px;color:var(--t2);transition:.15s}
.feed-item:hover{background:var(--bg2)}
.feed-icon{font-size:16px;width:24px;text-align:center;flex-shrink:0}

/* ===== BRAND GRID ===== */
.brand-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.brand-card{display:flex;align-items:center;gap:12px;padding:18px;background:var(--card);border:1px solid var(--b);border-radius:var(--rl);transition:.2s}
.brand-card:hover{box-shadow:0 8px 25px var(--sh);transform:translateY(-2px)}
.brand-logo{font-size:32px;flex-shrink:0}
.brand-info{flex:1}
.brand-name{font-size:14px;font-weight:600;color:var(--t)}
.brand-lv{display:inline-block;font-size:10px;padding:2px 8px;border-radius:8px;background:#DBEAFE;color:var(--p);font-weight:600;margin-top:2px}
.brand-desc{font-size:12px;color:var(--t3)}

/* ===== PROMO TABLE ===== */
.pt-wrap{overflow-x:auto;margin-bottom:16px}
.pt{width:100%;border-collapse:collapse;font-size:14px;min-width:650px}
.pt thead{background:var(--p);color:#fff}
.pt th{padding:12px 14px;text-align:left;font-size:13px;white-space:nowrap}
.pt td{padding:12px 14px;border-bottom:1px solid var(--b2);color:var(--t)}
.pt tbody tr:hover{background:var(--bg2)}
.lv-badge{display:inline-block;padding:2px 10px;border-radius:10px;font-size:12px;font-weight:700;background:#DBEAFE;color:var(--p)}
.comm{font-weight:700;color:var(--s);font-size:15px}

/* ===== PROMOTION PAGE ===== */
.promo-steps{display:flex;align-items:center;justify-content:center;gap:16px;flex-wrap:wrap}
.promo-step{flex:1;min-width:200px;max-width:280px;padding:28px 20px;text-align:center;background:var(--card);border:1px solid var(--b);border-radius:var(--rl);position:relative}
.step-num{display:inline-flex;width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--a),#8B5CF6);color:#fff;font-size:15px;font-weight:700;align-items:center;justify-content:center;margin-bottom:10px;box-shadow:0 4px 12px rgba(59,130,246,.3)}
.promo-step h3{font-size:15px;margin-bottom:6px;color:var(--t)}
.promo-step p{font-size:13px;color:var(--t2)}
.promo-arrow{font-size:22px;color:var(--t3);flex-shrink:0}
.promo-cta{text-align:center;padding:40px 28px;border-radius:var(--rxl);background:linear-gradient(135deg,var(--bg2),var(--bg3));border:1px solid var(--b)}
.promo-cta h3{font-size:22px;margin-bottom:8px;color:var(--t)}
.promo-cta p{color:var(--t2)}

/* ===== PARTNER PAGE ===== */
.partner-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.partner-card{padding:24px 16px;text-align:center;background:var(--card);border:1px solid var(--b);border-radius:var(--rl);transition:.2s}
.partner-card:hover{box-shadow:0 8px 25px var(--sh);transform:translateY(-3px)}
.partner-icon{width:48px;height:48px;margin:0 auto 12px;border-radius:var(--r);display:flex;align-items:center;justify-content:center;font-size:24px}
.partner-card h3{font-size:15px;margin-bottom:8px;color:var(--t)}
.partner-card p{font-size:12px;color:var(--t2);line-height:1.6;margin-bottom:2px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:20px}
.form-fw{grid-column:1/-1}
.form-fld label{display:block;font-size:13px;font-weight:600;color:var(--t);margin-bottom:4px}
.form-inp{width:100%;padding:10px 14px;border:1px solid var(--b);border-radius:var(--r);font-size:14px;background:var(--bg);color:var(--t);transition:.15s}
.form-inp:focus{border-color:var(--a);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.form-ta{min-height:90px;resize:vertical}

/* ===== LOGIN MODAL ===== */
.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(4px);z-index:2000;display:none;align-items:center;justify-content:center;padding:20px}
.modal-overlay.show{display:flex}
.modal{background:var(--card);border:1px solid var(--b);border-radius:var(--rxl);padding:36px 32px;width:100%;max-width:420px;position:relative;animation:modalIn .3s ease-out}
@keyframes modalIn{from{opacity:0;transform:scale(.95) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}
.modal-close{position:absolute;top:14px;right:14px;width:32px;height:32px;border-radius:50%;background:var(--bg2);color:var(--t2);font-size:16px;display:flex;align-items:center;justify-content:center}
.modal-close:hover{background:var(--bg3);color:var(--t)}
.modal h2{font-size:22px;margin-bottom:4px;color:var(--t)}
.modal .modal-sub{font-size:14px;color:var(--t2);margin-bottom:24px}
.modal .form-fld{margin-bottom:14px}
.modal .form-inp{padding:11px 14px}
.modal .form-inp.error{border-color:var(--e)}
.modal .form-hint{font-size:12px;color:var(--t3);margin-top:4px}
.modal .form-hint.error{color:var(--e)}
.modal .modal-switch{text-align:center;margin-top:16px;font-size:13px;color:var(--t2)}
.modal .modal-switch a{color:var(--a);cursor:pointer}
.modal .modal-switch a:hover{color:var(--a2)}
.modal .btn-block{width:100%;padding:12px;font-size:15px}
.modal .social-login{display:flex;gap:10px;justify-content:center;margin-top:16px}
.modal .social-login button{width:40px;height:40px;border-radius:50%;background:var(--bg2);border:1px solid var(--b);font-size:18px;display:flex;align-items:center;justify-content:center;color:var(--t2)}
.modal .social-login button:hover{background:var(--bg3);color:var(--t)}
.modal .divider{display:flex;align-items:center;gap:12px;margin:16px 0;color:var(--t3);font-size:13px}
.modal .divider::before,.modal .divider::after{content:'';flex:1;height:1px;background:var(--b)}

/* ===== USER CENTER ===== */
.uc-layout{display:grid;grid-template-columns:220px 1fr;gap:32px}
.uc-sidebar{background:var(--card);border:1px solid var(--b);border-radius:var(--rl);padding:24px;text-align:center}
.uc-avatar{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--a),#8B5CF6);margin:0 auto 12px;display:flex;align-items:center;justify-content:center;font-size:32px;color:#fff}
.uc-sidebar h3{font-size:16px;color:var(--t)}
.uc-sidebar .uc-level{font-size:12px;color:var(--t3);margin-bottom:16px}
.uc-nav{display:flex;flex-direction:column;gap:4px}
.uc-nav a{padding:8px 12px;border-radius:var(--rs);font-size:13px;color:var(--t2);text-align:left}
.uc-nav a:hover,.uc-nav a.active{background:var(--bg2);color:var(--a)}
.uc-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-bottom:24px}
.uc-stat{background:var(--card);border:1px solid var(--b);border-radius:var(--r);padding:20px;text-align:center}
.uc-stat-num{font-size:24px;font-weight:700;color:var(--t)}
.uc-stat-label{font-size:12px;color:var(--t3);margin-top:2px}
.order-item{padding:14px 16px;background:var(--card);border:1px solid var(--b);border-radius:var(--r);margin-bottom:8px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:8px}
.order-item .oi-info{font-size:14px;color:var(--t)}
.order-item .oi-meta{font-size:12px;color:var(--t3)}
.order-item .oi-status{font-size:12px;padding:2px 10px;border-radius:8px;background:var(--s);color:#fff;font-weight:600}

/* ===== NETHARD SECTION ===== */
.netdisk-sec{background:var(--bg2);border:1px solid var(--b);border-radius:var(--rl);padding:24px;margin-top:16px}
.netdisk-sec h3{font-size:15px;margin-bottom:14px;color:var(--t)}
.netdisk-item{display:flex;align-items:center;gap:12px;padding:12px 0;border-bottom:1px solid var(--b2)}
.netdisk-item:last-child{border-bottom:none}
.nd-icon{font-size:24px;flex-shrink:0}
.nd-info{flex:1;min-width:0}
.nd-info strong{display:block;font-size:13px;color:var(--t)}
.nd-link{display:block;font-size:11px;color:var(--a);word-break:break-all}
.nd-code{padding:2px 8px;background:#FEF3C7;border-radius:4px;font-family:var(--fm);font-size:12px;font-weight:700;color:#D97706}

/* ===== FOOTER ===== */
.footer{background:#0B1120;color:rgba(255,255,255,.6);padding:48px 0 24px;margin-top:80px;border-top:1px solid rgba(255,255,255,.05)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:40px;margin-bottom:40px}
.footer-brand h3{color:#fff;font-size:18px;margin-bottom:8px}
.footer-brand p{font-size:13px;line-height:1.7}
.footer-col h4{color:#fff;font-size:13px;font-weight:600;margin-bottom:14px}
.footer-col a{display:block;color:rgba(255,255,255,.5);font-size:13px;padding:3px 0;text-decoration:none}
.footer-col a:hover{color:#fff}
.footer-pd-label{color:#fff;font-size:12px;font-weight:600;margin:12px 0 2px;opacity:.85}
.footer-bottom{border-top:1px solid rgba(255,255,255,.06);padding-top:18px;text-align:center;font-size:12px;color:rgba(255,255,255,.3)}

/* ===== BACK TO TOP ===== */
.btt{position:fixed;bottom:30px;right:30px;width:40px;height:40px;border-radius:50%;background:var(--a);color:#fff;font-size:18px;box-shadow:0 4px 15px rgba(59,130,246,.3);display:flex;align-items:center;justify-content:center;opacity:0;transform:translateY(20px);pointer-events:none;transition:.25s;z-index:900}
.btt.show{opacity:1;transform:translateY(0);pointer-events:auto}
.btt:hover{background:var(--a2);transform:translateY(-3px)}

/* ===== TOAST ===== */
.toast-c{position:fixed;top:80px;right:20px;z-index:9999;display:flex;flex-direction:column;gap:8px}
.toast{padding:12px 18px;border-radius:var(--r);color:#fff;font-size:13px;font-weight:500;box-shadow:0 8px 30px rgba(0,0,0,.2);animation:ti .25s ease-out;display:flex;align-items:center;gap:8px;max-width:360px}
.toast.s{background:var(--s)}.toast.e{background:var(--e)}.toast.i{background:var(--p)}
@keyframes ti{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}

/* ===== EMPTY STATE ===== */
.empty-s{text-align:center;padding:50px 20px;color:var(--t2)}
.empty-s .icon{font-size:48px;margin-bottom:12px}
.empty-s h3{font-size:17px;color:var(--t);margin-bottom:6px}

/* ===== BREADCRUMB ===== */
.bc{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t3);margin-bottom:20px}
.bc a{color:var(--t2)}.bc a:hover{color:var(--a)}

/* ===== PAGE HEADER ===== */
.pg-hdr{padding:40px 0;margin-bottom:40px;background:var(--bg2);border-bottom:1px solid var(--b)}
.pg-hdr h1{font-size:30px;font-weight:800;color:var(--t)}
.pg-hdr p{color:var(--t2);margin-top:4px;font-size:15px}

/* ===== TOOL WORKSPACE ===== */
.tool-ws{background:var(--card);border:1px solid var(--b);border-radius:var(--rl);padding:24px}
.t-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.io-sec{margin-bottom:16px}
.io-sec label{display:block;font-size:12px;font-weight:600;color:var(--t2);margin-bottom:6px;text-transform:uppercase;letter-spacing:.5px}
.ta{width:100%;min-height:160px;padding:14px;border:1px solid var(--b);border-radius:var(--r);font-family:var(--fm);font-size:13px;line-height:1.5;resize:vertical;background:var(--bg);color:var(--t)}
.ta:focus{border-color:var(--a);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.to{width:100%;min-height:120px;padding:14px;background:#1E293B;color:#E2E8F0;border-radius:var(--r);font-family:var(--fm);font-size:13px;line-height:1.5;overflow-x:auto;white-space:pre-wrap;word-break:break-all}
.to.error{background:#FEF2F2;color:var(--e);border:1px solid var(--e)}
.conv-cat{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:16px}
.conv-row{display:grid;grid-template-columns:1fr auto 1fr;gap:10px;align-items:end;margin-bottom:16px}
.conv-fld label{display:block;font-size:11px;font-weight:600;color:var(--t2);margin-bottom:4px;text-transform:uppercase}
.conv-fld input{width:100%;padding:10px 14px;border:1px solid var(--b);border-radius:var(--r);font-size:18px;font-weight:500;font-family:var(--fm);background:var(--bg);color:var(--t)}
.conv-fld input:focus{border-color:var(--a);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.conv-fld select{width:100%;padding:10px 12px;border:1px solid var(--b);border-radius:var(--r);font-size:13px;background:var(--bg);color:var(--t);cursor:pointer}
.conv-swap{display:flex;align-items:center;padding-bottom:6px}
.conv-swap button{width:36px;height:36px;border-radius:50%;background:var(--bg2);border:1px solid var(--b);font-size:16px;color:var(--t2)}
.conv-swap button:hover{background:var(--a);color:#fff;border-color:var(--a)}
.timer-list{display:flex;flex-direction:column;gap:12px;margin-bottom:20px}
.timer-card{display:flex;align-items:center;gap:16px;padding:16px 20px;background:var(--bg2);border:1px solid var(--b);border-radius:var(--rl)}
.timer-info{flex:1}
.timer-info h4{font-size:15px;color:var(--t)}
.timer-date{font-size:12px;color:var(--t3)}
.timer-done{font-size:12px;color:var(--s);font-weight:600;margin-left:6px}
.timer-digits{display:flex;gap:2px;align-items:center}
.td{background:var(--p);color:#fff;padding:6px 10px;border-radius:var(--rs);font-family:var(--fm);font-size:20px;font-weight:700;min-width:40px;text-align:center}
.tl{font-size:11px;color:var(--t2);text-align:center;margin-top:1px}
.td-sep{font-size:18px;color:var(--t3);padding:0 2px}
.timer-add{padding:20px;border:2px dashed var(--b);border-radius:var(--rl);text-align:center}
.timer-add input{padding:8px 12px;border:1px solid var(--b);border-radius:var(--r);margin:4px;font-size:13px;background:var(--bg);color:var(--t)}
.timer-add h4{font-size:14px;margin-bottom:10px;color:var(--t)}
.cp{width:100%;height:80px;border-radius:var(--rl);margin-bottom:20px;border:1px solid var(--b)}
.cflds{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.cfld label{display:block;font-size:11px;font-weight:600;color:var(--t2);margin-bottom:4px;text-transform:uppercase}
.cfld input{width:100%;padding:8px 12px;border:1px solid var(--b);border-radius:var(--r);font-family:var(--fm);font-size:14px;background:var(--bg);color:var(--t)}
.cfld input:focus{border-color:var(--a);box-shadow:0 0 0 3px rgba(59,130,246,.12)}
.ft{padding:6px 16px;border-radius:16px;font-size:13px;font-weight:500;color:var(--t2);background:var(--bg2);border:1px solid var(--b);text-decoration:none;display:inline-block}
.ft:hover{color:var(--a);border-color:var(--a)}
.ft.active{background:var(--a);color:#fff;border-color:var(--a)}
.ft-bar{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:24px}
.blog-layout{display:grid;grid-template-columns:1fr 280px;gap:36px}
.sidebar-card{background:var(--bg2);border:1px solid var(--b);border-radius:var(--rl);padding:20px;margin-bottom:16px}
.sidebar-card h4{font-size:15px;margin-bottom:12px;padding-bottom:8px;border-bottom:2px solid var(--a);display:inline-block;color:var(--t)}
.hot-list li{padding:8px 0;border-bottom:1px solid var(--b2);font-size:13px;display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.hot-list a{color:var(--t2)}.hot-list a:hover{color:var(--a)}
.hot-rank{display:inline-block;width:18px;height:18px;background:var(--a);color:#fff;border-radius:3px;text-align:center;line-height:18px;font-size:11px;font-weight:700;margin-right:6px}
.blog-detail-header h1{font-size:28px;font-weight:800;margin-bottom:10px;color:var(--t)}
.blog-detail-content{font-size:15px;line-height:1.9;color:var(--t);max-width:780px}
.blog-detail-content h2{font-size:20px;font-weight:700;margin:28px 0 12px;color:var(--a)}
.blog-detail-content h3{font-size:17px;font-weight:600;margin:20px 0 8px}
.blog-detail-content p{margin-bottom:14px;color:var(--t2)}
.blog-detail-content ul,.blog-detail-content ol{margin-bottom:14px;padding-left:20px}
.blog-detail-content li{margin-bottom:4px;list-style:disc;color:var(--t2)}
.blog-detail-content blockquote{border-left:3px solid var(--a);padding:10px 16px;margin-bottom:14px;background:var(--bg2);border-radius:0 var(--rs) var(--rs) 0;color:var(--t2)}
.download-layout{display:grid;grid-template-columns:240px 1fr;gap:32px}
.dl-preview{width:100%;aspect-ratio:1;border-radius:var(--rl);display:flex;align-items:center;justify-content:center;font-size:64px;border:1px solid var(--b)}
.dl-info h1{font-size:24px;margin-bottom:10px;color:var(--t)}
.dl-meta{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--t2);margin-bottom:12px;align-items:center}
.detail-sec{margin-top:32px}
.detail-sec h2{font-size:18px;font-weight:700;margin-bottom:12px;padding-bottom:6px;border-bottom:2px solid var(--b);color:var(--t)}
.feat-list li{padding:6px 0 6px 20px;position:relative;font-size:14px;color:var(--t2)}
.feat-list li::before{content:'✓';position:absolute;left:0;color:var(--s);font-weight:700}
.cl-item{padding:10px 0;border-bottom:1px solid var(--b2);font-size:13px}
.cl-item .ver{font-weight:600;color:var(--p);margin-right:6px}
.cl-item .dt{font-size:12px;color:var(--t3)}
.faq-item{margin-bottom:14px}
.faq-item h4{font-size:14px;font-weight:600;margin-bottom:2px;color:var(--t)}
.faq-item p{font-size:13px;color:var(--t2)}
.about-layout{display:grid;grid-template-columns:220px 1fr;gap:40px}
.about-sidebar{background:var(--bg2);border:1px solid var(--b);border-radius:var(--rl);padding:24px;text-align:center}
.about-avatar{width:88px;height:88px;border-radius:var(--rl);background:linear-gradient(135deg,var(--a),#8B5CF6);margin:0 auto 12px;display:flex;align-items:center;justify-content:center;color:#fff;font-size:38px}
.skill-tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:16px}
.skill-tag{padding:4px 12px;background:var(--bg2);color:var(--a);border:1px solid var(--b);border-radius:14px;font-size:12px;font-weight:500}
.search-item{padding:16px;background:var(--card);border:1px solid var(--b);border-radius:var(--r);margin-bottom:10px;cursor:pointer}
.search-item:hover{border-color:var(--a)}
.search-item h4{font-size:15px;margin-bottom:2px;color:var(--t)}
.search-item .type-badge{font-size:10px;padding:2px 8px;border-radius:8px;background:var(--bg2);color:var(--t2);margin-left:6px}
.search-item p{font-size:13px;color:var(--t2)}
.hl{background:#FEF3C7;padding:1px 3px;border-radius:2px;font-weight:600}

/* ===== NOTIFICATION CENTER ===== */
.nt-item{display:flex;gap:14px;padding:16px;background:var(--card);border:1px solid var(--b);border-radius:var(--r);margin-bottom:8px;transition:.2s;cursor:pointer}
.nt-item:hover{border-color:var(--a3);background:var(--card-hov)}
.nt-item.unread{border-left:3px solid var(--a);background:rgba(59,130,246,.03)}
.nt-icon{font-size:24px;flex-shrink:0;margin-top:2px}
.nt-body{flex:1;min-width:0}
.nt-title{font-size:14px;font-weight:600;color:var(--t);margin-bottom:4px}
.nt-dot{color:var(--e);font-size:10px;margin-left:4px}
.nt-text{font-size:13px;color:var(--t2);line-height:1.5;margin-bottom:4px}
.nt-date{font-size:11px;color:var(--t3)}

/* ===== USER CENTER EXTRAS ===== */
.uc-settings-sec{background:var(--card);border:1px solid var(--b);border-radius:var(--r);padding:20px;margin-bottom:16px}
.uc-settings-sec h4{font-size:15px;margin-bottom:14px;color:var(--t)}
.uc-status-badge{display:inline-block;padding:3px 10px;border-radius:8px;font-size:11px;font-weight:600}

/* ===== COMMENT SYSTEM ===== */
.comment-item{display:flex;gap:14px;padding:20px 0;border-bottom:1px solid var(--b2)}
.comment-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--a),#8B5CF6);display:flex;align-items:center;justify-content:center;color:#fff;font-size:16px;font-weight:700;flex-shrink:0}
.comment-body{flex:1;min-width:0}
.comment-header{display:flex;align-items:center;gap:8px;margin-bottom:4px;flex-wrap:wrap}
.comment-header strong{font-size:14px;color:var(--t)}
.comment-date{font-size:11px;color:var(--t3)}
.comment-text{font-size:14px;color:var(--t2);line-height:1.6}
.comment-badge-admin{font-size:10px;padding:1px 8px;border-radius:6px;background:#DBEAFE;color:var(--p);font-weight:600}
.comment-reply{display:flex;gap:12px;margin-top:12px;padding:12px 16px;background:var(--bg2);border:1px solid var(--b);border-radius:var(--r);margin-left:40px}
.reply-avatar{width:32px;height:32px;font-size:13px;background:linear-gradient(135deg,#8B5CF6,var(--a))}

/* ===== RESPONSIVE ===== */
@media(max-width:1023px){
  :root{--cp:20px}
  .nav-links{gap:2px}
  .nav-links a{padding:6px 10px;font-size:12px}
  .nav-search input{width:100px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .brand-grid{grid-template-columns:repeat(2,1fr)}
  .partner-grid{grid-template-columns:repeat(2,1fr)}
  .blog-layout{grid-template-columns:1fr}
  .blog-layout aside{display:none}
  .about-layout{grid-template-columns:1fr}
  .download-layout{grid-template-columns:1fr}
  .dl-preview{max-width:180px}
  .conv-row{grid-template-columns:1fr}
  .cflds{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .uc-layout{grid-template-columns:1fr}
  .promo-steps{flex-direction:column}
  .promo-arrow{transform:rotate(90deg)}
}
@media(max-width:767px){
  :root{--nh:56px;--cp:16px}
  .sec{padding:40px 0}
  .st{font-size:22px}
  .nav-links{display:none}
  .nav-links.open{display:flex;flex-direction:column;position:absolute;top:var(--nh);left:0;right:0;background:rgba(15,23,42,.98);padding:12px 16px;gap:2px;box-shadow:0 10px 30px rgba(0,0,0,.3)}
  .nav-links.open a{padding:10px 14px;border-radius:var(--rs);font-size:14px}
  .nav-search{display:none}
  .nav-hamburger{display:block}
  .nav-auth .btn-reg{display:none}

  .carousel-content h1{font-size:26px}
  .carousel-content p{font-size:14px}
  .nav-grid{grid-template-columns:repeat(auto-fill,minmax(80px,1fr))}
  .nav-grid-item{padding:12px 6px}
  .nav-grid-item .nav-icon{width:36px;height:36px;font-size:18px}
  .nav-grid-item .nav-label{font-size:11px}

  #tool-grid{grid-template-columns:1fr}
  #tool-grid .card-img{width:80px;font-size:26px}

  .card-grid{grid-template-columns:1fr}
  .brand-grid{grid-template-columns:1fr}
  .partner-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:20px}
  .uc-stats{grid-template-columns:1fr}
  .modal{padding:28px 20px}

  .timer-card{flex-direction:column;align-items:flex-start}
  .timer-digits{flex-wrap:wrap}
  .timer-add input{width:100%!important}
  .shdr{flex-direction:column;align-items:flex-start;gap:8px}
  .pg-hdr{padding:28px 0}
  .pg-hdr h1{font-size:24px}
}
@media(min-width:1400px){
  :root{--mw:1280px}
  .card-grid{grid-template-columns:repeat(4,1fr)}
  .nav-grid{grid-template-columns:repeat(auto-fill,minmax(110px,1fr))}
}
@media print{
  .navbar,.footer,.btt,.toast-c,.nav-hamburger{display:none!important}
  body{padding-top:0}
}

/* ============================================================
   Points System
   ============================================================ */
.points-display { display:flex;align-items:center;gap:8px;padding:12px;background:#1E293B;border-radius:8px;margin:12px 0; }
.points-icon { font-size:24px; }
.points-value { font-size:20px;font-weight:bold;color:#F8FAFC; }
.points-label { color:#94A3B8;font-size:12px; }
.btn-recharge { background:#10B981;color:white;border:none;border-radius:6px;padding:8px 16px;cursor:pointer; }
.btn-recharge:hover { background:#059669; }
.point-badge { background:#F59E0B;color:white;font-size:11px;padding:2px 8px;border-radius:4px;display:inline-block; }
.recharge-overlay { position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.6);display:flex;align-items:center;justify-content:center;z-index:9999; }
.recharge-modal { background:#1E293B;border-radius:12px;padding:30px;width:480px;max-width:90%;max-height:80vh;overflow-y:auto;border:1px solid #334155; }
.recharge-modal h2 { font-size:22px;margin-bottom:4px;color:#F8FAFC; }
.recharge-grid { display:grid;grid-template-columns:repeat(3,1fr);gap:10px; }
.recharge-card { background:#0F172A;border:1px solid #334155;border-radius:8px;padding:16px;text-align:center;cursor:pointer;transition:all 0.2s; }
.recharge-card:hover { border-color:#3B82F6; }
.recharge-card.selected { border-color:#10B981;background:#1a2e1a; }
.rc-label { font-size:18px;font-weight:bold;color:#F8FAFC; }
.rc-points { font-size:14px;color:#94A3B8;margin-top:4px; }
.rc-bonus { font-size:12px;color:#10B981;margin-top:4px; }
.pay-btn { flex:1;padding:12px;border:none;border-radius:6px;font-size:16px;cursor:pointer;color:white;font-weight:bold; }
.pay-btn:hover { opacity:0.9; }
.wechat-btn { background:#07C160; }
.alipay-btn { background:#1677FF; }
.close-btn { width:100%;margin-top:12px;padding:10px;background:transparent;border:1px solid #334155;border-radius:6px;color:#94A3B8;cursor:pointer; }
.close-btn:hover { background:#334155;color:#F8FAFC; }
.coin-display { display:inline-flex;align-items:center;gap:3px;font-size:12px;font-weight:600;color:var(--w);background:rgba(245,158,11,0.1);padding:2px 8px;border-radius:10px;margin-left:4px;white-space:nowrap; }
.paywall-overlay { position:absolute;top:0;left:0;width:100%;height:100%;display:flex;align-items:center;justify-content:center;z-index:10; }
.paywall-box { background:var(--card);border:2px dashed var(--b);border-radius:var(--rxl);padding:40px;text-align:center;max-width:420px;margin:0 auto; }
.paywall-icon { font-size:64px;margin-bottom:8px; }
.paywall-box h3 { font-size:20px;margin-bottom:8px; }
.paywall-box p { font-size:14px;color:var(--t2);margin-bottom:16px; }
.modal-overlay-confirm { position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);display:flex;align-items:center;justify-content:center;z-index:99999; }
.confirm-dialog { background:var(--card);border:1px solid var(--b);border-radius:var(--rl);padding:24px;min-width:300px;max-width:420px;box-shadow:0 20px 60px rgba(0,0,0,0.3); }
.confirm-dialog h3 { font-size:18px;margin-bottom:4px;color:var(--t); }

/* ============================================================
   Promotion System
   ============================================================ */
.promo-stats-grid { display:grid;grid-template-columns:repeat(4,1fr);gap:12px; }
.promo-stat-card { background:var(--card);border:1px solid var(--b);border-radius:var(--r);padding:20px;text-align:center; }
.promo-stat-value { font-size:28px;font-weight:800;color:var(--t); }
.promo-stat-label { font-size:12px;color:var(--t3);margin-top:4px; }
.promo-stat-sub { font-size:11px;color:var(--t2);margin-top:2px; }
.promo-extra-stat { display:flex;flex-direction:column;align-items:center;padding:8px 16px;background:var(--bg2);border-radius:var(--rs); }
.promo-extra-stat span { font-size:11px;color:var(--t3); }
.promo-extra-stat strong { font-size:16px;color:var(--t); }
@media (max-width:767px) {
  .promo-stats-grid { grid-template-columns:repeat(2,1fr); }
}

/* ============================================================
   Loading Spinner
   ============================================================ */
.loading-spinner { display:flex;align-items:center;justify-content:center;padding:40px;color:var(--t3); }
.loading-spinner::before { content:'';width:24px;height:24px;border:3px solid var(--b3);border-top-color:var(--a);border-radius:50%;animation:spin .6s linear infinite;margin-right:10px; }
@keyframes spin { to { transform:rotate(360deg); } }

/* ============================================================
   Toast Enhancement
   ============================================================ */
.toast-c { position:fixed;top:80px;right:20px;z-index:99999;display:flex;flex-direction:column;gap:8px; }
.toast { padding:12px 20px;border-radius:var(--rs);font-size:14px;font-weight:500;color:#fff;box-shadow:0 4px 12px rgba(0,0,0,0.2);animation:slideIn .3s ease;max-width:360px; }
.toast.s { background:#10B981; }
.toast.e { background:#EF4444; }
.toast.i { background:#3B82F6; }
.toast.w { background:#F59E0B; }
@keyframes slideIn { from { transform:translateX(100%);opacity:0; } to { transform:translateX(0);opacity:1; } }

/* ============================================================
   Form Validation
   ============================================================ */
.form-inp.error { border-color:var(--e) !important; }
.form-error-msg { font-size:11px;color:var(--e);margin-top:2px; }

/* ============================================================
   Global Loading Overlay
   ============================================================ */
.global-loading { display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,0.5);z-index:99998;align-items:center;justify-content:center;flex-direction:column; }
.global-loading.show { display:flex; }
.global-loading-spinner { width:40px;height:40px;border:4px solid rgba(255,255,255,0.3);border-top-color:#fff;border-radius:50%;animation:spin .6s linear infinite; }
.global-loading-text { color:#fff;font-size:14px;margin-top:12px; }

/* Hamburger auto-close on nav click */
@media (max-width:767px) {
  .nav-links.open a { pointer-events:auto; }
  .nav-links a { pointer-events:auto; }
}
.nav-links a:active { color:var(--a); }

/* ============================================================
   VIP System Effects
   ============================================================ */
.vip-badge { display:inline-block; padding:2px 8px; border-radius:8px; font-size:11px; font-weight:700; color:#fff; letter-spacing:.5px; white-space:nowrap; }
.vip-badge-lg { padding:4px 14px; font-size:14px; border-radius:12px; }
.vip-bronze { background:linear-gradient(135deg,#6B5433,#C9A76B); box-shadow:0 0 10px rgba(201,167,107,.5); }
.vip-silver { background:linear-gradient(135deg,#7C8698,#E4E7ED); box-shadow:0 0 10px rgba(228,231,237,.5); }
.vip-gold { background:linear-gradient(135deg,#B45309,#FBBF24); box-shadow:0 0 10px rgba(251,191,36,.5); }
.vip-platinum { background:linear-gradient(135deg,#0E7490,#67E8F9); box-shadow:0 0 10px rgba(103,232,249,.5); }
.vip-diamond { background:linear-gradient(135deg,#4338CA,#A5B4FC); box-shadow:0 0 10px rgba(165,180,252,.5); }
.vip-supreme { background:linear-gradient(135deg,#86198F,#F5D0FE); box-shadow:0 0 10px rgba(240,171,252,.6); position:relative; overflow:hidden; }
.vip-supreme::after { content:''; position:absolute; top:0; bottom:0; left:-60%; width:40%; background:linear-gradient(90deg,transparent,rgba(255,255,255,.55),transparent); transform:skewX(-20deg); animation:vipShine 3s linear infinite; }
@keyframes vipShine { 0% { left:-60%; } 60%,100% { left:130%; } }

.vip-card { position:relative; border-radius:16px; padding:18px; color:#fff; margin-bottom:16px; overflow:hidden; border:1px solid rgba(255,255,255,.15); }
.vip-card-glow { position:absolute; top:-40%; left:-20%; width:140%; height:80%; background:radial-gradient(ellipse at center, rgba(255,255,255,.28), transparent 60%); opacity:.6; }
.vip-card-top { display:flex; align-items:center; justify-content:space-between; margin-bottom:10px; position:relative; }
.vip-card-discount { font-size:22px; font-weight:800; text-shadow:0 2px 8px rgba(0,0,0,.3); }
.vip-card-benefits { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:12px; position:relative; }
.vip-card-benefits span { font-size:11px; padding:2px 9px; background:rgba(0,0,0,.22); border:1px solid rgba(255,255,255,.25); border-radius:10px; }
.vip-card-next { font-size:12px; margin-bottom:6px; opacity:.95; }
.vip-bar { height:8px; background:rgba(0,0,0,.3); border-radius:4px; overflow:hidden; margin-bottom:6px; }
.vip-bar-fill { height:100%; background:linear-gradient(90deg,rgba(255,255,255,.55),#fff); border-radius:4px; transition:width .5s; }
.vip-card-spent { font-size:11px; opacity:.85; }
.vip-card.vip-glow { animation:vipGlow 1.6s ease; }
@keyframes vipGlow { 0% { box-shadow:0 0 0 rgba(255,255,255,0); } 40% { box-shadow:0 0 40px rgba(255,255,255,.9); } 100% { box-shadow:0 0 0 rgba(255,255,255,0); } }

/* ============================================================
   Activity Center + Checkin
   ============================================================ */
.act-checkin { margin-bottom:36px; }
.checkin-box { background:var(--card); border:1px solid var(--b); border-radius:var(--rl); padding:24px; }
.checkin-hdr { display:flex; align-items:center; gap:10px; font-size:18px; font-weight:800; color:var(--t); margin-bottom:6px; }
.checkin-icon { font-size:24px; }
.checkin-sub { font-size:13px; color:var(--t2); margin-bottom:18px; }
.checkin-stats { display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-bottom:18px; }
.checkin-stat { background:var(--bg2); border:1px solid var(--b); border-radius:var(--r); padding:14px; text-align:center; }
.cs-num { font-size:26px; font-weight:800; color:var(--t); }
.cs-label { font-size:11px; color:var(--t3); margin-top:2px; }
.checkin-row { display:grid; grid-template-columns:repeat(7,1fr); gap:8px; margin-bottom:18px; }
.checkin-day { background:var(--bg2); border:1px solid var(--b); border-radius:var(--r); padding:10px 4px; text-align:center; }
.checkin-day.done { background:rgba(16,185,129,.1); border-color:rgba(16,185,129,.35); }
.checkin-day.today { border-color:var(--a); box-shadow:0 0 0 2px rgba(59,130,246,.15); }
.cd-day { font-size:11px; color:var(--t3); }
.cd-bonus { font-size:14px; font-weight:700; color:var(--s); margin-top:2px; }
.checkin-btn[disabled] { opacity:.6; cursor:not-allowed; }

.act-section { margin-top:8px; }
.act-card { border-radius:var(--rl); padding:22px 24px; color:#fff; position:relative; overflow:hidden; margin-bottom:16px; border:1px solid rgba(255,255,255,.15); }
.act-card::before { content:''; position:absolute; top:-60%; right:-10%; width:380px; height:380px; border-radius:50%; background:rgba(255,255,255,.06); }
.act-card-inner { position:relative; }
.act-tag { position:absolute; top:16px; right:16px; font-size:11px; font-weight:700; padding:3px 10px; border-radius:10px; background:rgba(0,0,0,.25); border:1px solid rgba(255,255,255,.3); }
.act-tag-run { color:#D1FAE5; }
.act-tag-soon { color:#FEF3C7; }
.act-title { font-size:20px; font-weight:800; margin-bottom:4px; }
.act-type { font-size:12px; opacity:.85; margin-bottom:8px; }
.act-desc { font-size:13px; opacity:.9; max-width:620px; line-height:1.6; }
.act-time { font-size:12px; opacity:.8; margin-top:8px; }

/* Homepage activity banner */
.home-act-banner { display:flex; align-items:center; justify-content:space-between; gap:16px; padding:20px 24px; border-radius:var(--rl); background:linear-gradient(135deg,#1E3A8A,#3B82F6); color:#fff; cursor:pointer; transition:.2s; }
.home-act-banner:hover { transform:translateY(-2px); box-shadow:0 10px 30px rgba(59,130,246,.3); }
.hab-title { font-size:18px; font-weight:800; }
.hab-sub { font-size:13px; opacity:.85; margin-top:2px; }
.hab-btn { font-size:14px; font-weight:700; background:rgba(255,255,255,.15); border:1px solid rgba(255,255,255,.3); padding:8px 16px; border-radius:20px; white-space:nowrap; }

/* Recharge offer */
.recharge-offer-banner { background:linear-gradient(90deg,#FEF3C7,#FDE68A); color:#92400E; font-size:13px; font-weight:700; text-align:center; padding:8px 12px; border-radius:8px; margin-bottom:12px; }
.recharge-card { position:relative; }
.recharge-card.has-offer { border-color:rgba(16,185,129,.5); }
.rc-offer-tag { position:absolute; top:-8px; right:-8px; background:#F59E0B; color:#fff; font-size:10px; font-weight:700; padding:2px 6px; border-radius:6px; }

/* Responsive */
@media(max-width:767px){
  .checkin-row { grid-template-columns:repeat(4,1fr); }
  .home-act-banner { flex-direction:column; align-items:flex-start; }
}

/* ============================================================
   网站维护公告（更新预报 / 维护中提示，V0.6）
   ============================================================ */
.mtc-bar{position:fixed;top:0;left:0;right:0;height:36px;z-index:1100;display:flex;align-items:center;gap:10px;padding:0 14px;font-size:13px;font-weight:600;color:#fff;box-shadow:0 2px 10px rgba(0,0,0,.18)}
.mtc-bar--fc{background:linear-gradient(90deg,#B45309,#D97706)}
.mtc-bar--mtc{background:linear-gradient(90deg,#B91C1C,#DC2626)}
.mtc-bar-icon{font-size:15px;flex:none}
.mtc-bar-text{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mtc-bar-btn{flex:none;background:rgba(255,255,255,.22);border:1px solid rgba(255,255,255,.35);color:#fff;font-size:12px;border-radius:6px;padding:3px 10px;cursor:pointer}
.mtc-bar-btn:hover{background:rgba(255,255,255,.32)}
.mtc-bar-close{flex:none;width:24px;height:24px;border-radius:50%;background:rgba(255,255,255,.18);color:#fff;font-size:13px;display:flex;align-items:center;justify-content:center;cursor:pointer}
.mtc-bar-close:hover{background:rgba(255,255,255,.3)}
body.mtc-active .navbar{top:36px}
body.mtc-active{padding-top:calc(var(--nh) + 36px)}

/* 全屏维护提示层 */
.mtc-overlay{position:fixed;inset:0;background:rgba(2,6,23,.78);backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);z-index:1500;display:none;align-items:center;justify-content:center;padding:20px}
.mtc-overlay-card{background:var(--card);border:1px solid var(--b);border-radius:var(--rxl);padding:36px 32px;width:100%;max-width:460px;text-align:center;animation:modalIn .3s ease-out;box-shadow:0 20px 60px rgba(0,0,0,.35)}
.mtc-overlay-icon{font-size:44px;margin-bottom:10px}
.mtc-overlay-card h2{font-size:24px;color:var(--t);margin-bottom:10px}
.mtc-overlay-content{font-size:14px;color:var(--t2);line-height:1.8;margin-bottom:12px;white-space:pre-line}
.mtc-overlay-time{font-size:13px;color:var(--a);font-weight:600;margin-bottom:20px}
.mtc-overlay-btn{background:linear-gradient(135deg,#3B82F6,#2563EB);color:#fff;border:none;border-radius:8px;padding:11px 26px;font-size:14px;font-weight:600;cursor:pointer}
.mtc-overlay-btn:hover{filter:brightness(1.1)}
body.mtc-overlay-open{overflow:hidden}