@import url('design-tokens.css?v=persimmon20260921');

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-family);
    background: var(--bg-body);
    min-height: 100vh;
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
}

/* ── 分屏布局 ── */
.split-layout {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1.85fr 1fr;
}

/* ── 左侧品牌区 ── */
.feature-side {
    position: relative;
    color: #fff;
    padding: var(--space-8) var(--space-8) var(--space-6);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    overflow: hidden;
    background:
        radial-gradient(circle at 18% 20%, rgba(255,255,255,0.06), transparent 38%),
        radial-gradient(circle at 90% 92%, rgba(255,255,255,0.04), transparent 43%),
        linear-gradient(135deg, #1e3a5f 0%, #2563eb 50%, #3b82f6 100%);
}

.feature-side::before {
    content: "";
    position: absolute;
    inset: 0;
    opacity: 0.1;
    background-image:
        radial-gradient(circle at 100% 100%, transparent 26px, #fff 27px, #fff 29px, transparent 30px),
        radial-gradient(circle at 0 0, transparent 26px, #fff 27px, #fff 29px, transparent 30px);
    background-size: 74px 74px;
    pointer-events: none;
}

/* Three.js  canvas 容器 */
#three-canvas {
    position: absolute;
    inset: 0;
    z-index: 0;
    opacity: 0.5;
}

.feature-topbar,
.carousel,
.carousel-dots {
    position: relative;
    z-index: 1;
}

.brand-inline {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.origin-logo {
    border-radius: 50%;
    border: 2px solid rgba(255, 255, 255, 0.6);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    background: #fff;
    object-fit: cover;
}

.brand-inline .origin-logo {
    width: 40px;
    height: 40px;
}

.brand-title {
    font-family: var(--font-family);
    font-size: var(--text-lg);
    font-weight: var(--weight-bold);
    line-height: 1.1;
    letter-spacing: -0.01em;
}

.brand-subtitle {
    font-size: var(--text-sm);
    margin-top: var(--space-1);
    color: rgba(235, 246, 255, 0.8);
}

/* ── 轮播 ── */
.carousel {
    flex: 1;
    min-height: 420px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-slide {
    max-width: 600px;
    text-align: center;
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.45s ease, transform 0.45s ease;
    position: absolute;
    padding: 0 var(--space-4);
}

.feature-slide.active {
    opacity: 1;
    transform: translateY(0);
    position: relative;
}

.slide-art {
    width: min(72%, 390px);
    margin: 0 auto var(--space-4);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: var(--radius-xl);
    padding: var(--space-3);
    box-shadow: 0 16px 30px rgba(0, 0, 0, 0.18);
    backdrop-filter: blur(8px);
}

.slide-art img {
    display: block;
    width: 100%;
    border-radius: var(--radius-lg);
    background: #fff;
}

.feature-slide h2 {
    font-family: var(--font-family);
    font-size: clamp(1.35rem, 2.15vw, 2rem);
    line-height: 1.3;
    margin-bottom: var(--space-2);
    font-weight: var(--weight-bold);
}

.feature-slide p {
    color: rgba(233, 244, 255, 0.9);
    line-height: var(--leading-relaxed);
    max-width: 56ch;
    margin: 0 auto;
    font-size: var(--text-sm);
}

.carousel-dots {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    margin-top: var(--space-4);
}

.dot {
    width: 8px;
    height: 8px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.32);
    cursor: pointer;
    transition: all var(--transition-base);
}

.dot.active {
    background: #fff;
    transform: scale(1.25);
}

.dot:hover {
    background: rgba(255, 255, 255, 0.6);
}

/* ── 右侧登录区 ── */
.login-side {
    position: relative;
    background: var(--bg-card);
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-8) var(--space-8);
}

.login-lang-row {
    display: flex;
    justify-content: flex-end;
    margin-bottom: var(--space-4);
}

.lang-toggle {
    min-width: 64px;
    height: 36px;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-medium);
    background: var(--bg-card);
    color: var(--text-primary);
    font-weight: var(--weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    font-family: var(--font-family);
    font-size: var(--text-sm);
}

.lang-toggle:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.login-card {
    max-width: 400px;
    width: 100%;
    margin: 0 auto;
}

.logo-wrap {
    text-align: center;
    margin-bottom: var(--space-3);
}

.logo-main {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    border: 2px solid var(--border-light);
    object-fit: cover;
    background: #fff;
}

.login-title {
    text-align: center;
    font-family: var(--font-family);
    font-size: var(--text-2xl);
    margin-bottom: var(--space-1);
    font-weight: var(--weight-bold);
    letter-spacing: -0.02em;
}

.login-subtitle {
    text-align: center;
    color: var(--text-tertiary);
    margin-bottom: var(--space-6);
    font-size: var(--text-sm);
}

/* ── 消息提示 ── */
.error-message, .success-message {
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.error-message {
    background: var(--color-danger-light);
    color: var(--color-danger);
    border: 1px solid rgba(220, 38, 38, 0.15);
}

.success-message {
    background: var(--color-success-light);
    color: var(--color-success);
    border: 1px solid rgba(5, 150, 105, 0.15);
}

/* ── 表单 ── */
form {
    display: grid;
    gap: var(--space-4);
}

.form-group label {
    display: block;
    margin-bottom: var(--space-1);
    color: var(--text-secondary);
    font-weight: var(--weight-medium);
    font-size: var(--text-sm);
}

.form-group input {
    width: 100%;
    padding: var(--space-3) var(--space-4);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-size: var(--text-md);
    background: var(--bg-input);
    color: var(--text-primary);
    font-family: var(--font-family);
    transition: all var(--transition-fast);
    line-height: var(--leading-normal);
}

.form-group input:hover {
    border-color: var(--border-dark);
}

.form-group input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-bg);
    background: var(--bg-card);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

/* ── 提交按钮 ── */
button[type="submit"] {
    width: 100%;
    border: none;
    border-radius: var(--radius-md);
    padding: var(--space-3) var(--space-4);
    color: var(--text-inverse);
    font-size: var(--text-md);
    font-weight: var(--weight-semibold);
    cursor: pointer;
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-hover));
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    font-family: var(--font-family);
    position: relative;
    overflow: hidden;
}

button[type="submit"]::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(rgba(255,255,255,0.15), rgba(255,255,255,0));
    opacity: 0;
    transition: opacity var(--transition-fast);
}

button[type="submit"]:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-lg);
}

button[type="submit"]:hover::after {
    opacity: 1;
}

button[type="submit"]:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

button[type="submit"]:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ── 页脚 ── */
.footer {
    margin-top: var(--space-4);
    padding-top: var(--space-4);
    text-align: center;
    color: var(--text-tertiary);
    font-size: var(--text-sm);
    border-top: 1px solid var(--border-light);
}

.footer a, .auth-back {
    color: var(--color-primary);
    text-decoration: none;
    font-weight: var(--weight-medium);
    transition: color var(--transition-fast);
}

.footer a:hover, .auth-back:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

/* ── 独立认证页 ── */
body.auth-page {
    background:
        radial-gradient(circle at 12% 18%, rgba(37, 99, 235, 0.06), transparent 42%),
        radial-gradient(circle at 88% 82%, rgba(37, 99, 235, 0.04), transparent 40%),
        var(--bg-body);
}

.auth-shell {
    min-height: 100vh;
    display: grid;
    place-items: center;
    padding: clamp(var(--space-4), 4vw, var(--space-10));
}

.auth-card {
    width: min(100%, 420px);
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    padding: clamp(var(--space-6), 4vw, var(--space-8));
}

.auth-card .logo-main {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    border: 2px solid var(--border-light);
    object-fit: cover;
    background: #fff;
}

/* ── 响应式 ── */
@media (max-width: 1024px) {
    .split-layout {
        grid-template-columns: 1fr;
    }

    .feature-side {
        min-height: 50vh;
    }

    .login-side {
        padding: var(--space-5) var(--space-4) var(--space-8);
    }
}

@media (max-width: 640px) {
    .feature-side {
        padding: var(--space-4) var(--space-3) var(--space-3);
    }

    .brand-title {
        font-size: var(--text-md);
    }

    .brand-subtitle {
        font-size: var(--text-xs);
    }

    .slide-art {
        width: 88%;
        padding: var(--space-2);
    }

    .feature-slide h2 {
        font-size: var(--text-lg);
    }

    .feature-slide p {
        font-size: var(--text-sm);
        line-height: var(--leading-normal);
    }

    .login-title {
        font-size: var(--text-xl);
    }

    .login-subtitle {
        font-size: var(--text-sm);
    }
}


/* 备案信息（首页底部） */
.site-beian {
    position: absolute;
    left: 0;
    right: 0;
    bottom: var(--space-2);
    text-align: center;
    font-size: var(--text-xs);
    line-height: var(--leading-normal);
    color: var(--text-tertiary);
}

.site-beian a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.site-beian a:hover {
    color: var(--color-primary);
    text-decoration: underline;
}

/* 在窄屏补足 .login-side 底部留白 */
@media (max-width: 760px) {
    body.campus-ui .login-side {
        padding-bottom: var(--space-10);
    }
}

/* ================================================================
   青柿手账 · 登录页 v2（2026-09-21）
   手账封面：纸感底 + 拍立得幻灯 + 便签登录卡。废 Three.js 与蓝紫渐变。
   ================================================================ */
body.campus-ui.campus-auth .feature-side {
    background: transparent;
    color: var(--text-primary);
}
body.campus-ui.campus-auth .feature-side::before { display: none; }
body.campus-ui.campus-auth .brand-title { color: var(--text-primary); font-family: var(--font-display); font-weight: 400; }
body.campus-ui.campus-auth .brand-subtitle { color: var(--text-tertiary); }
body.campus-ui.campus-auth .origin-logo { border-color: var(--bg-white); }

/* 拍立得幻灯：白框 + 顶部胶带 + 微倾斜 */
body.campus-ui.campus-auth .slide-art {
    position: relative;
    background: #fff;
    border: 1px solid var(--border-light);
    border-radius: 8px;
    padding: 12px 12px 16px;
    box-shadow: 0 14px 34px rgba(38, 51, 45, .14);
    backdrop-filter: none;
    transform: rotate(-1.6deg);
}
body.campus-ui.campus-auth .slide-art::before {
    content: '';
    position: absolute;
    width: 84px; height: 22px;
    top: -11px; left: 50%;
    transform: translateX(-50%) rotate(-2deg);
    background: rgba(245, 201, 69, .88);
    border: 1px solid #e3b93a;
    border-radius: 3px;
    box-shadow: 0 2px 5px rgba(38, 51, 45, .12);
}
body.campus-ui.campus-auth .feature-slide h2 {
    font-family: var(--font-display);
    font-weight: 400;
    color: var(--text-primary);
    letter-spacing: 0;
}
body.campus-ui.campus-auth .feature-slide p { color: var(--text-tertiary); }
body.campus-ui.campus-auth .dot { background: var(--border-medium); width: 10px; height: 10px; }
body.campus-ui.campus-auth .dot.active {
    background: var(--color-pop);
    transform: scale(1.35) rotate(-8deg);
    box-shadow: 0 3px 8px rgba(232, 102, 60, .4);
}
body.campus-ui.campus-auth .dot:hover { background: var(--text-muted); }

/* 右侧便签登录卡 */
body.campus-ui.campus-auth .login-side { background: transparent; }
body.campus-ui.campus-auth .login-card {
    position: relative;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 18px;
    box-shadow: 0 18px 44px rgba(38, 51, 45, .12);
    padding: 34px 30px 26px;
}
body.campus-ui.campus-auth .login-card::before {
    content: '';
    position: absolute;
    width: 96px; height: 24px;
    top: -12px; left: 50%;
    transform: translateX(-50%) rotate(1.5deg);
    background: rgba(245, 201, 69, .88);
    border: 1px solid #e3b93a;
    border-radius: 3px;
    box-shadow: 0 2px 5px rgba(38, 51, 45, .12);
}
body.campus-ui.campus-auth .login-title {
    font-family: var(--font-display);
    font-weight: 400;
    font-size: 28px;
}
body.campus-ui.campus-auth .lang-toggle { border-radius: 999px; }
body.campus-ui.campus-auth .form-group input { border-radius: 999px; padding-left: 18px; }
body.campus-ui.campus-auth button[type="submit"] {
    background: var(--color-primary);
    border-radius: 999px;
    box-shadow: 0 4px 12px rgba(47, 125, 91, .28);
    transition: transform var(--transition-spring), box-shadow 160ms ease, background-color 160ms ease;
}
body.campus-ui.campus-auth button[type="submit"]::after { display: none; }
body.campus-ui.campus-auth button[type="submit"]:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(47, 125, 91, .32);
}
body.campus-ui.campus-auth button[type="submit"]:active { transform: scale(.97); }
@media (max-width: 760px) {
    body.campus-ui.campus-auth .split-layout form button[type=submit] { border-radius: 999px; background: var(--color-primary); }
}

/* 独立认证页：平涂纸感底 */
body.campus-ui.auth-page {
    background: var(--bg-body);
}
body.campus-ui .auth-card {
    border-radius: 18px;
    border-top: 4px solid var(--color-primary);
}