/* --- 全局重置 --- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { height: 100%; overflow: auto; }

body {
    /* 深蓝基调，渐变背景 */
    background: #0a1628;
    background-image: 
        linear-gradient(120deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
        radial-gradient(at 10% 20%, rgba(0, 180, 219, 0.15) 0px, transparent 40%),
        radial-gradient(at 90% 80%, rgba(255, 107, 53, 0.1) 0px, transparent 40%),
        radial-gradient(at 55% 45%, rgba(122, 92, 255, 0.12) 0px, transparent 46%);
    background-size: 120px 120px, auto, auto, auto;
    font-family: 'Space Grotesk', 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: #fff;
    display: flex; flex-direction: column;
}

body::before,
body::after {
    content: "";
    position: fixed;
    pointer-events: none;
    z-index: 0;
}

body::before {
    width: 42vw;
    height: 42vw;
    left: -16vw;
    top: -12vw;
    background: radial-gradient(circle, rgba(0, 180, 219, 0.24), transparent 62%);
    filter: blur(4px);
    animation: auraDrift 16s ease-in-out infinite alternate;
}

body::after {
    width: 36vw;
    height: 36vw;
    right: -12vw;
    bottom: -10vw;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.22), transparent 64%);
    filter: blur(6px);
    animation: auraDrift 18s ease-in-out infinite alternate-reverse;
}

/* SEO隐藏层 */
.seo-content { 
    position: absolute; 
    left: -9999px; 
    top: -9999px;
    width: 1px;
    height: 1px;
    overflow: hidden; 
}

/* --- 登录页 (3D视差舞台) --- */
.login-page {
    width: 100%;
    min-height: 100%;
    height: auto;
    display: flex; flex-direction: column;
    justify-content: flex-start; align-items: center;
    position: relative;
    z-index: 10;
    perspective: 1200px;
    padding: 32px 20px 58px;
}
.login-page.hidden { display: none; }

.hero-shell {
    align-items: center;
    display: grid;
    gap: 28px;
    grid-template-columns: minmax(340px, 440px) minmax(520px, 720px);
    margin: auto 0;
    max-width: 1220px;
    position: relative;
    width: 100%;
    z-index: 2;
}

.landing-nav {
    align-items: center;
    display: flex;
    justify-content: space-between;
    max-width: 1220px;
    position: relative;
    width: 100%;
    z-index: 4;
}

.nav-brand {
    align-items: center;
    color: #fff;
    display: flex;
    font-size: 18px;
    font-weight: 900;
    gap: 12px;
}

.nav-brand img {
    border-radius: 14px;
    height: 42px;
    width: 42px;
}

.nav-use-btn,
.primary-use-btn,
.ghost-key-btn,
.no-key-btn {
    border: 0;
    cursor: pointer;
    font-family: inherit;
    font-weight: 900;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.nav-use-btn,
.primary-use-btn {
    background: linear-gradient(135deg, #ff6b35, #f5a623);
    border-radius: 999px;
    box-shadow: 0 18px 42px rgba(255, 107, 53, 0.28);
    color: #fff;
}

.nav-use-btn {
    min-height: 44px;
    padding: 0 22px;
}

.landing-hero {
    align-items: center;
    display: grid;
    gap: 42px;
    grid-template-columns: minmax(320px, 0.82fr) minmax(620px, 1.18fr);
    margin: auto 0;
    max-width: 1220px;
    position: relative;
    width: 100%;
    z-index: 3;
}

.hero-copy h1 {
    font-size: clamp(44px, 6vw, 76px);
    font-weight: 950;
    letter-spacing: -0.08em;
    line-height: 0.96;
    margin: 0 0 22px;
}

.hero-copy p {
    color: #a9c4df;
    font-size: 17px;
    line-height: 1.9;
    margin: 0;
    max-width: 520px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    margin-top: 32px;
}

.primary-use-btn {
    font-size: 18px;
    min-height: 56px;
    padding: 0 34px;
}

.ghost-key-btn,
.no-key-btn {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 999px;
    color: #c8d9ea;
    min-height: 56px;
    padding: 0 24px;
}

.nav-use-btn:hover,
.primary-use-btn:hover,
.ghost-key-btn:hover,
.no-key-btn:hover {
    transform: translateY(-3px);
}

/* --- 登录卡片 (深蓝磨砂质感) --- */
.login-card {
    background: rgba(17, 34, 64, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(0, 180, 219, 0.2);
    border-radius: 28px;
    padding: 60px 45px;
    width: 90%; max-width: 440px;
    justify-self: center;
    text-align: center;
    box-shadow: 0 40px 100px rgba(0, 0, 0, 0.5), inset 0 0 20px rgba(255, 255, 255, 0.05);
    transform-style: preserve-3d;
    transition: transform 0.15s ease-out;
}

.model-showcase {
    background:
        linear-gradient(135deg, rgba(14, 29, 54, 0.78), rgba(11, 21, 38, 0.58)),
        radial-gradient(circle at 12% 12%, rgba(0, 180, 219, 0.18), transparent 34%),
        radial-gradient(circle at 90% 18%, rgba(255, 107, 53, 0.14), transparent 32%);
    border: 1px solid rgba(135, 206, 250, 0.18);
    border-radius: 32px;
    box-shadow: 0 42px 110px rgba(0, 0, 0, 0.38), inset 0 0 36px rgba(255, 255, 255, 0.035);
    overflow: hidden;
    padding: 28px;
    position: relative;
}

.model-showcase {
    min-height: 650px;
    padding: 22px;
    padding-bottom: 40px;
}

.model-cloud {
    min-height: 610px;
    position: relative;
}

.model-orb {
    --brand-a: #00b4db;
    --brand-b: #64b5f6;
    --brand-glow: rgba(0, 180, 219, 0.18);
    align-items: center;
    animation: floatOrb 7s ease-in-out infinite;
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.13), rgba(255, 255, 255, 0.04)),
        radial-gradient(circle at 20% 16%, var(--brand-glow), transparent 58%);
    border: 1px solid rgba(255, 255, 255, 0.13);
    border-radius: 28px;
    box-shadow: 0 20px 70px rgba(0, 0, 0, 0.24);
    display: flex;
    flex-direction: column;
    gap: 8px;
    height: 104px;
    justify-content: center;
    left: var(--x);
    padding: 16px;
    position: absolute;
    top: var(--y);
    transform: translate(-50%, -50%);
    transition: transform 0.32s ease, box-shadow 0.32s ease, z-index 0.32s ease;
    width: 104px;
}

.model-orb:nth-child(1) { --x: 18%; --y: 18%; animation-delay: -0.5s; }
.model-orb:nth-child(2) { --x: 42%; --y: 14%; animation-delay: -1.4s; }
.model-orb:nth-child(3) { --x: 66%; --y: 18%; animation-delay: -2.1s; }
.model-orb:nth-child(4) { --x: 86%; --y: 30%; animation-delay: -1.0s; }
.model-orb:nth-child(5) { --x: 18%; --y: 42%; animation-delay: -2.8s; }
.model-orb:nth-child(6) { --x: 42%; --y: 39%; animation-delay: -3.6s; }
.model-orb:nth-child(7) { --x: 66%; --y: 45%; animation-delay: -0.8s; }
.model-orb:nth-child(8) { --x: 86%; --y: 56%; animation-delay: -3.1s; }
.model-orb:nth-child(9) { --x: 17%; --y: 66%; animation-delay: -1.9s; }
.model-orb:nth-child(10) { --x: 41%; --y: 65%; animation-delay: -4.1s; }
.model-orb:nth-child(11) { --x: 64%; --y: 70%; animation-delay: -2.5s; }
.model-orb:nth-child(12) { --x: 84%; --y: 72%; animation-delay: -1.2s; }
.model-orb:nth-child(13) { --x: 27%; --y: 82%; animation-delay: -3.4s; }
.model-orb:nth-child(14) { --x: 56%; --y: 82%; animation-delay: -4.8s; }
.model-orb:nth-child(15) { --x: 88%; --y: 12%; animation-delay: -5.2s; }

.model-orb:hover {
    box-shadow: 0 28px 90px var(--brand-glow), 0 26px 70px rgba(0, 0, 0, 0.34);
    transform: translate(-50%, -50%) scale(1.22);
    z-index: 8;
}

.model-orb strong {
    color: #fff;
    font-size: 14px;
    font-weight: 950;
    letter-spacing: -0.04em;
    text-align: center;
}

.model-detail {
    background: rgba(5, 12, 24, 0.9);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 18px;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.38);
    left: 50%;
    min-width: 220px;
    opacity: 0;
    padding: 14px;
    pointer-events: none;
    position: absolute;
    top: calc(100% + 12px);
    transform: translateX(-50%) translateY(-8px);
    transition: opacity 0.22s ease, transform 0.22s ease;
}

.model-orb:hover .model-detail {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.model-detail b {
    color: #ffb86b;
    display: block;
    font-size: 13px;
    margin-bottom: 6px;
}

.model-detail span {
    color: #b8d4e8;
    display: block;
    font-size: 12px;
    line-height: 1.6;
}

.model-showcase::before {
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.18), transparent);
    content: "";
    height: 1px;
    left: 24px;
    position: absolute;
    right: 24px;
    top: 0;
}

.showcase-head {
    margin-bottom: 20px;
    max-width: 620px;
}

.showcase-kicker {
    color: #ffb86b;
    display: inline-flex;
    font-size: 12px;
    font-weight: 900;
    letter-spacing: 0.18em;
    margin-bottom: 10px;
}

.showcase-head h2 {
    font-size: clamp(28px, 4vw, 46px);
    font-weight: 900;
    letter-spacing: -0.06em;
    line-height: 1.02;
    margin: 0 0 12px;
}

.showcase-head p {
    color: #a9c4df;
    font-size: 15px;
    line-height: 1.8;
}

.model-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: repeat(4, minmax(0, 1fr));
}

.model-card {
    --brand-a: #00b4db;
    --brand-b: #64b5f6;
    --brand-glow: rgba(0, 180, 219, 0.18);
    background:
        linear-gradient(145deg, rgba(255, 255, 255, 0.105), rgba(255, 255, 255, 0.035)),
        radial-gradient(circle at 18% 10%, var(--brand-glow), transparent 48%);
    border: 1px solid rgba(255, 255, 255, 0.105);
    border-radius: 18px;
    min-height: 112px;
    overflow: hidden;
    padding: 14px;
    position: relative;
    transition: transform 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}

.model-card::after {
    background: linear-gradient(135deg, var(--brand-a), var(--brand-b));
    border-radius: 999px;
    content: "";
    filter: blur(14px);
    height: 48px;
    opacity: 0.2;
    position: absolute;
    right: -18px;
    top: -16px;
    width: 48px;
}

.model-card:hover {
    border-color: rgba(255, 255, 255, 0.24);
    box-shadow: 0 18px 42px var(--brand-glow);
    transform: translateY(-4px);
}

.model-card.featured {
    min-height: 130px;
}

.model-mark {
    align-items: center;
    background: linear-gradient(135deg, var(--brand-a), var(--brand-b));
    border-radius: 14px;
    box-shadow: 0 12px 28px var(--brand-glow);
    color: #fff;
    display: inline-flex;
    font-size: 12px;
    font-weight: 950;
    height: 38px;
    justify-content: center;
    letter-spacing: -0.04em;
    margin-bottom: 12px;
    min-width: 38px;
    padding: 0 9px;
}

.model-orb .model-mark {
    height: 34px;
    min-width: 34px;
    margin-bottom: 6px;
}

.model-orb .model-mark.logo-mark img {
    max-height: 21px;
    max-width: 48px;
}

.model-mark.logo-mark {
    background: rgba(255, 255, 255, 0.92);
    box-shadow: 0 12px 28px var(--brand-glow), inset 0 0 0 1px rgba(255, 255, 255, 0.35);
    padding: 7px;
}

.model-mark.logo-mark img {
    display: block;
    height: 100%;
    max-height: 24px;
    max-width: 54px;
    object-fit: contain;
    width: auto;
}

.model-card strong {
    color: #ffffff;
    display: block;
    font-size: 15px;
    font-weight: 900;
    letter-spacing: -0.03em;
    line-height: 1.2;
    margin-bottom: 6px;
    position: relative;
    z-index: 1;
}

.model-card small {
    color: #91aac5;
    display: block;
    font-size: 12px;
    line-height: 1.45;
    position: relative;
    z-index: 1;
}

.brand-gpt { --brand-a: #10a37f; --brand-b: #56e0bc; --brand-glow: rgba(16, 163, 127, 0.2); }
.brand-claude { --brand-a: #d97745; --brand-b: #f6c177; --brand-glow: rgba(217, 119, 69, 0.22); }
.brand-omni { --brand-a: #4285f4; --brand-b: #34a853; --brand-glow: rgba(66, 133, 244, 0.2); }
.brand-gemini { --brand-a: #7c3aed; --brand-b: #60a5fa; --brand-glow: rgba(124, 58, 237, 0.2); }
.brand-grok { --brand-a: #111827; --brand-b: #9ca3af; --brand-glow: rgba(156, 163, 175, 0.18); }
.brand-horse { --brand-a: #ff6b35; --brand-b: #f5a623; --brand-glow: rgba(255, 107, 53, 0.22); }
.brand-banana { --brand-a: #facc15; --brand-b: #fb923c; --brand-glow: rgba(250, 204, 21, 0.2); }
.brand-midjourney { --brand-a: #0f172a; --brand-b: #94a3b8; --brand-glow: rgba(148, 163, 184, 0.18); }
.brand-pixverse { --brand-a: #ec4899; --brand-b: #8b5cf6; --brand-glow: rgba(236, 72, 153, 0.2); }
.brand-kling { --brand-a: #06b6d4; --brand-b: #22c55e; --brand-glow: rgba(6, 182, 212, 0.2); }
.brand-vidu { --brand-a: #2563eb; --brand-b: #22d3ee; --brand-glow: rgba(37, 99, 235, 0.2); }
.brand-sora { --brand-a: #38bdf8; --brand-b: #a78bfa; --brand-glow: rgba(56, 189, 248, 0.2); }
.brand-minimax { --brand-a: #8b5cf6; --brand-b: #38bdf8; --brand-glow: rgba(139, 92, 246, 0.2); }
.brand-seedance { --brand-a: #f43f5e; --brand-b: #fb7185; --brand-glow: rgba(244, 63, 94, 0.2); }
.brand-suno { --brand-a: #f59e0b; --brand-b: #fde047; --brand-glow: rgba(245, 158, 11, 0.2); }

.showcase-note {
    align-items: center;
    background: rgba(0, 180, 219, 0.08);
    border: 1px solid rgba(0, 180, 219, 0.16);
    border-radius: 16px;
    display: flex;
    gap: 10px;
    margin-top: 14px;
    padding: 13px 15px;
}

.showcase-note span {
    background: rgba(255, 107, 53, 0.14);
    border-radius: 999px;
    color: #ffb86b;
    font-size: 12px;
    font-weight: 900;
    padding: 6px 10px;
    white-space: nowrap;
}

.showcase-note strong {
    color: #d7e8f8;
    font-size: 13px;
}

.trademark-note {
    color: rgba(169, 196, 223, 0.62);
    font-size: 11px;
    line-height: 1.55;
    margin-top: 10px;
}

.access-overlay.show {
    display: flex;
}

.access-card {
    max-width: 460px;
    padding: 42px 36px 34px;
    position: relative;
    width: min(92vw, 460px);
}

.access-close {
    align-items: center;
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 50%;
    color: #c8d9ea;
    cursor: pointer;
    display: flex;
    font-size: 22px;
    height: 36px;
    justify-content: center;
    position: absolute;
    right: 18px;
    top: 18px;
    width: 36px;
}

.logo-area.compact {
    margin-bottom: 28px;
}

.logo-area.compact img {
    height: 64px;
    width: 64px;
}

.logo-area.compact h2 {
    font-size: 28px;
    font-weight: 950;
    letter-spacing: -0.04em;
    margin: 0 0 8px;
}

.access-actions {
    display: grid;
    gap: 12px;
}

.access-actions .login-btn,
.access-actions .no-key-btn {
    margin: 0;
    width: 100%;
}

/* Logo区域 */
.logo-area { 
    transform: translateZ(30px); 
    margin-bottom: 45px; 
}
.logo-area img {
    width: 84px; height: 84px;
    border-radius: 22px;
    margin-bottom: 18px;
    box-shadow: 0 10px 25px rgba(0,0,0,0.3);
}
.logo-area h1 {
    font-size: 32px;
    font-weight: 800;
    background: linear-gradient(135deg, #ff6b35, #00b4db);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 10px;
    letter-spacing: -0.5px;
}
.logo-area p {
    color: #64b5f6; font-size: 14px; letter-spacing: 3px;
    text-transform: uppercase; opacity: 0.8;
    font-weight: 500;
}

/* 消息提示 */
.error-msg, .warning-msg, .success-msg {
    padding: 14px;
    border-radius: 12px;
    margin-bottom: 25px;
    font-size: 14px;
    display: none;
    transform: translateZ(25px);
    animation: slideDown 0.3s ease-out;
}
@keyframes slideDown { from{transform:translateY(-10px);opacity:0} to{transform:translateY(0);opacity:1} }

.error-msg {
    background: rgba(244, 67, 54, 0.15);
    border: 1px solid rgba(244, 67, 54, 0.4);
    color: #ff8a80;
}
.warning-msg {
    background: rgba(255, 152, 0, 0.15);
    border: 1px solid rgba(255, 152, 0, 0.4);
    color: #ffd180;
}
.success-msg {
    background: rgba(76, 175, 80, 0.15);
    border: 1px solid rgba(76, 175, 80, 0.4);
    color: #b9f6ca;
}
.error-msg.show, .warning-msg.show, .success-msg.show { display: block; }

/* 输入框 (幻蓝风格) */
.input-group { 
    margin-bottom: 35px; text-align: left; 
    transform: translateZ(40px);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.input-group.hidden {
    display: none !important;
    opacity: 0;
    pointer-events: none;
    transform: translateZ(40px) translateY(-10px);
}

/* 手机号输入框特殊样式 */
#phoneGroup {
    animation: slideInPhone 0.4s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes slideInPhone {
    from {
        opacity: 0;
        transform: translateZ(40px) translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateZ(40px) translateY(0);
    }
}
.input-label {
    display: block; color: #64b5f6; font-size: 12px; font-weight: 700;
    margin-bottom: 10px; margin-left: 6px; text-transform: uppercase;
    letter-spacing: 1px;
}
.input-group input {
    width: 100%; padding: 20px 24px;
    background: rgba(10, 22, 40, 0.6);
    border: 1px solid rgba(0, 180, 219, 0.3);
    border-radius: 14px;
    color: #fff; font-size: 18px;
    text-align: center; letter-spacing: 2px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 600;
}
.input-group input:focus {
    outline: none; border-color: #00b4db;
    background: rgba(10, 22, 40, 0.9);
    box-shadow: 0 0 25px rgba(0, 180, 219, 0.25);
    transform: scale(1.02);
}
.input-group input::placeholder { color: #405570; font-weight: 400; letter-spacing: 0; }

/* 按钮 (橙金渐变) */
.login-btn {
    width: 100%; padding: 18px;
    background: linear-gradient(135deg, #ff6b35 0%, #f5a623 100%);
    border: none; border-radius: 14px;
    color: #fff; font-size: 20px; font-weight: 800;
    cursor: pointer; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform: translateZ(50px);
    box-shadow: 0 15px 35px rgba(255, 107, 53, 0.3);
    margin-bottom: 25px;
}
.login-btn:hover {
    transform: translateZ(55px) scale(1.02);
    box-shadow: 0 20px 45px rgba(255, 107, 53, 0.5);
}
.login-btn:active { transform: translateZ(45px) scale(0.98); }
.login-btn:disabled { 
    opacity: 0.6; 
    cursor: not-allowed; 
    transform: translateZ(50px);
    box-shadow: none;
}

/* 帮助链接 */
.help-links {
    display: flex;
    justify-content: center;
    gap: 25px;
    transform: translateZ(30px);
}
.help-links a {
    color: #5a7a9a;
    text-decoration: none;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 1px dashed rgba(90,122,154,0.3);
    display: inline-block; 
    padding-bottom: 3px;
}
.help-links a:hover { 
    color: #64b5f6; 
    border-color: #64b5f6; 
    transform: translateY(-2px);
}

/* 备案号 (底部) */
.footer-icp {
    position: absolute; bottom: 20px; width: 100%; text-align: center;
    opacity: 0.25; font-size: 12px; z-index: 5;
    transition: opacity 0.3s;
}
.footer-icp a { color: #fff; text-decoration: none; }
.footer-icp:hover { opacity: 0.8; }

/* --- 弹窗样式 --- */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    display: none; justify-content: center; align-items: center;
    z-index: 9999; padding: 20px;
}
.modal-overlay.show { 
    display: flex; 
    animation: fadeIn 0.3s forwards; 
}

.modal-content {
    background: #112240;
    border: 1px solid rgba(0, 180, 219, 0.2);
    box-shadow: 0 0 60px rgba(0, 180, 219, 0.15);
    border-radius: 24px;
    padding: 30px 25px;
    width: fit-content;
    min-width: 320px;
    max-width: 90%;
    text-align: left;
    position: relative;
    animation: popIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
    max-height: 95vh;
    overflow-y: auto;
    scrollbar-width: none;
    -ms-overflow-style: none;
}

.modal-content::-webkit-scrollbar {
    display: none;
}

.modal-title {
    text-align: center; margin-bottom: 20px;
    font-size: 22px; font-weight: 800;
    background: linear-gradient(90deg, #ff6b35, #00b4db);
    -webkit-background-clip: text; 
    -webkit-text-fill-color: transparent;
}
.modal-title span { margin-right: 10px; font-size: 26px; vertical-align: middle; -webkit-text-fill-color: initial; }

.compare-box {
    background: rgba(10, 22, 40, 0.5);
    border-radius: 16px;
    padding: 15px;
    margin-bottom: 15px;
    font-size: 14px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.bad-title { color: #ef5350; font-weight: 800; margin-bottom: 8px; display: flex; align-items: center; }
.bad-list { list-style: none; color: #8892b0; margin-bottom: 10px; }
.bad-list li { margin-bottom: 8px; position: relative; padding-left: 20px; }
.bad-list li::before { content: "✕"; color: #ef5350; position: absolute; left: 0; font-weight: 800; }

.divider { height: 1px; background: rgba(255,255,255,0.08); margin: 15px 0; }

.good-title { color: #66bb6a; font-weight: 800; margin-bottom: 8px; display: flex; align-items: center; }
.good-list { list-style: none; color: #ccd6f6; }
.good-list li { margin-bottom: 8px; position: relative; padding-left: 20px; }
.good-list li::before { content: "✓"; color: #66bb6a; position: absolute; left: 0; font-weight: 900; }
.highlight { color: #ffca28; font-weight: 700; }

.scan-area { text-align: center; margin-top: 10px; }
.scan-head { font-size: 16px; color: #fff; margin-bottom: 15px; font-weight: 700; }
.scan-tag { color: #00b4db; text-shadow: 0 0 10px rgba(0, 180, 219, 0.3); }

.qr-img {
    width: 140px; height: 140px;
    border-radius: 14px;
    border: 3px solid rgba(0, 180, 219, 0.3);
    box-shadow: 0 10px 30px rgba(0,0,0,0.4);
    margin-bottom: 10px;
    transition: transform 0.3s;
}
.qr-img:hover { transform: scale(1.05); }

.scan-note { color: #8892b0; font-size: 12px; line-height: 1.8; }
.scan-note strong { color: #ff6b35; display: block; margin-bottom: 6px; font-size: 14px; }

.close-btn, .modal-close {
    width: 100%; background: rgba(255,255,255,0.08);
    border: 1px solid rgba(255,255,255,0.05); 
    padding: 12px; margin-top: 15px;
    border-radius: 12px; color: #aaa; 
    cursor: pointer; transition: all 0.3s;
    font-weight: 600;
}
.close-btn:hover, .modal-close:hover { background: rgba(255,255,255,0.15); color: #fff; }

/* 复制助手样式 */
.copy-methods { text-align: left; }
.copy-method {
    margin-bottom: 25px; padding: 20px;
    background: rgba(0, 180, 219, 0.05);
    border-radius: 16px; border: 1px solid rgba(0, 180, 219, 0.15);
}
.copy-method h4 { color: #64b5f6; margin-bottom: 15px; font-size: 15px; font-weight: 700; }
.copy-method textarea {
    width: 100%; height: 100px; padding: 15px;
    background: rgba(10, 22, 40, 0.8);
    border: 1px solid rgba(0, 180, 219, 0.3);
    border-radius: 12px; color: #fff;
    resize: none; margin: 12px 0;
    font-family: inherit; font-size: 14px;
    transition: all 0.3s;
}
.copy-method textarea:focus { outline: none; border-color: #ff6b35; background: #0a1628; }
.copy-method .btn {
    width: 100%; padding: 14px;
    background: linear-gradient(90deg, #ff6b35, #00b4db);
    border: none; border-radius: 12px;
    color: #fff; cursor: pointer; font-size: 15px; font-weight: 700;
    transition: all 0.3s;
}
.copy-method .btn:hover { transform: translateY(-2px); box-shadow: 0 5px 15px rgba(255, 107, 53, 0.3); }

.shortcut-tips { background: rgba(0,180,219,0.08); padding: 18px; border-radius: 12px; margin: 12px 0; border: 1px solid rgba(0, 180, 219, 0.1); }
.shortcut-tips p { margin: 8px 0; font-size: 14px; color: #b8d4e8; }
.shortcut-tips strong { color: #64b5f6; font-weight: 700; margin-right: 10px; }

/* --- APP容器 --- */
.app-page { display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: #000; }
.app-page.show { display: block; }

.loading-overlay {
    position: absolute; top: 0; left: 0; width: 100%; height: 100%;
    background: #0a1628; display: flex; flex-direction: column; justify-content: center; align-items: center; z-index: 100;
}
.loading-overlay.hidden { opacity: 0; pointer-events: none; transition: opacity 0.8s ease; }
.loading-spinner {
    width: 60px; height: 60px;
    border: 5px solid rgba(0, 180, 219, 0.15);
    border-top-color: #00b4db; border-radius: 50%;
    animation: spin 1s cubic-bezier(0.4, 0, 0.2, 1) infinite;
    margin-bottom: 25px;
}
.loading-text { color: #64b5f6; font-size: 16px; font-weight: 500; letter-spacing: 1px; }

.app-iframe { width: 100%; height: 100%; border: none; }

.float-btns {
    position: fixed; bottom: 30px; right: 30px;
    display: none; flex-direction: column; gap: 12px; z-index: 1000;
    opacity: 0.5; transition: all 0.4s;
}
.float-btns:hover { opacity: 1; transform: translateY(-5px); }
.float-btn {
    width: 48px; height: 48px; border-radius: 16px; border: none; cursor: pointer;
    font-size: 20px; display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4); transition: all 0.3s;
}
.float-btn:hover { transform: scale(1.1) rotate(5deg); }
.btn-logout { background: linear-gradient(135deg, #ff6b35, #f5a623); color: #fff; }

.online-indicator {
    position: absolute; top: -4px; right: -4px;
    width: 14px; height: 14px; background: #4caf50;
    border: 2.5px solid #fff; border-radius: 50%;
    animation: pulse 2s infinite;
}

/* 动画 */
@keyframes fadeIn { from{opacity:0} to{opacity:1} }
@keyframes popIn { from{transform:scale(0.92) translateY(20px);opacity:0} to{transform:scale(1) translateY(0);opacity:1} }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(76,175,80,0.7)} 70%{box-shadow:0 0 0 10px rgba(76,175,80,0)} 100%{box-shadow:0 0 0 0 rgba(76,175,80,0)} }
@keyframes auraDrift { from{transform:translate3d(0,0,0) scale(1)} to{transform:translate3d(4vw,3vh,0) scale(1.12)} }
@keyframes floatOrb { 0%,100%{ margin-top: 0; } 50%{ margin-top: -16px; } }

/* 响应式 */
@media (max-width: 1180px) {
    html, body {
        min-height: 100%;
    }

    .login-page {
        height: auto;
        min-height: 100%;
    }

    .landing-hero {
        grid-template-columns: 1fr;
        max-width: 860px;
    }

    .model-showcase {
        width: 100%;
    }
}

@media (max-width: 760px) {
    .login-page {
        justify-content: flex-start;
        padding: 22px 14px 70px;
    }

    .landing-nav {
        padding: 0 4px;
    }

    .landing-hero {
        gap: 24px;
    }

    .hero-copy h1 {
        font-size: 42px;
    }

    .hero-copy p {
        font-size: 14px;
    }

    .hero-actions {
        margin-top: 22px;
    }

    .model-showcase {
        border-radius: 24px;
        min-height: auto;
        padding: 16px;
    }

    .model-cloud {
        gap: 10px;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        min-height: auto;
    }

    .model-orb {
        animation: none;
        height: auto;
        left: auto;
        min-height: 118px;
        padding: 12px;
        position: relative;
        top: auto;
        transform: none;
        width: auto;
    }

    .model-orb:hover {
        transform: translateY(-4px) scale(1.02);
    }

    .model-detail {
        display: none;
    }
}

@media (max-width: 480px) {
    .login-card { padding: 38px 24px; width: 100%; }
    .logo-area h1 { font-size: 28px; }
    .float-btns { bottom: 20px; right: 20px; }
    .float-btn { width: 44px; height: 44px; border-radius: 14px; }
    .model-showcase { padding: 18px; }
    .primary-use-btn,
    .ghost-key-btn {
        width: 100%;
    }

    .model-orb strong { font-size: 14px; }
}

/* 横屏设备支持 */
@media screen and (orientation: landscape) {
    .login-card {
        max-width: 440px;
        width: 100%;
        padding: 45px 35px;
    }
    
    .login-page {
        perspective: 1500px;
    }
}

/* 横屏且小屏幕设备 */
@media screen and (min-width: 481px) and (max-width: 768px) and (orientation: landscape) {
    .login-card {
        width: 100%;
        max-width: 500px;
    }
}