/* ==========================================
   3d3k一周年祝福留言板 - 样式
   ========================================== */

:root {
    --bg-dark: #0a0a1a;
    --bg-card: rgba(20, 20, 50, 0.8);
    --gold: #ffd700;
    --gold-glow: rgba(255, 215, 0, 0.6);
    --text: #e0e0e0;
    --text-dim: #8888aa;
    --accent: #ff6b35;
    --border: rgba(255, 215, 0, 0.2);
}

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

body {
    font-family: 'Microsoft YaHei', 'PingFang SC', sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

/* ===== 背景粒子 ===== */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== 地图容器（全屏） ===== */
#china-map {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 0;
}

.chart-loaded #china-map {
    min-height: 100vh;
}

/* ===== 头部覆盖（左上） ===== */
.header-overlay {
    position: fixed;
    top: 20px;
    left: 24px;
    z-index: 10;
    background: rgba(10, 10, 26, 0.75);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px 22px;
    text-align: left;
    user-select: none;
    pointer-events: none;
}

.header-overlay h1 {
    font-size: 1.4em;
    color: var(--gold);
    text-shadow: 0 0 20px var(--gold-glow);
    letter-spacing: 3px;
    margin-bottom: 4px;
}

.header-overlay .subtitle {
    font-size: 0.8em;
    color: var(--text-dim);
    letter-spacing: 1px;
}

.header-overlay .count-info {
    margin-top: 6px;
    font-size: 0.8em;
    color: var(--text-dim);
}

.header-overlay .count-info span {
    color: var(--gold);
    font-weight: bold;
}

/* ===== 留言底部滚动条 ===== */
.marquee-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 10;
    background: rgba(10, 10, 26, 0.7);
    backdrop-filter: blur(8px);
    border-top: 1px solid var(--border);
    padding: 10px 0;
    overflow: hidden;
}

.marquee-title {
    position: absolute;
    left: 20px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gold);
    font-size: 0.85em;
    font-weight: bold;
    z-index: 2;
    background: linear-gradient(90deg, rgba(10,10,26,0.7) 0%, rgba(10,10,26,0.7) 80%, transparent 100%);
    padding: 8px 20px 8px 0;
    letter-spacing: 1px;
    pointer-events: none;
}

.marquee-track {
    overflow: hidden;
    margin-left: 100px;
    position: relative;
    height: 36px;
}

.marquee-content {
    display: flex;
    white-space: nowrap;
    animation: marqueeScroll 40s linear infinite;
}

.marquee-content:hover {
    animation-play-state: paused;
}

@keyframes marqueeScroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.marquee-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 18px;
    margin: 0 4px;
    background: rgba(255, 215, 0, 0.08);
    border: 1px solid rgba(255, 215, 0, 0.15);
    border-radius: 20px;
    font-size: 0.85em;
}

.marquee-item .tag {
    color: var(--gold);
    font-weight: bold;
    font-size: 0.85em;
    white-space: nowrap;
}

.marquee-item .msg-text {
    color: #fff;
    white-space: nowrap;
}

.marquee-item .msg-from {
    color: var(--text-dim);
    font-size: 0.85em;
    white-space: nowrap;
}

/* ===== 浮动表单（右下） ===== */
.form-float {
    position: fixed;
    bottom: 80px;
    right: 24px;
    z-index: 20;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.form-toggle {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--gold), #ffaa00);
    color: #000;
    border: none;
    font-size: 1.5em;
    cursor: pointer;
    box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

.form-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(255, 215, 0, 0.5);
}

.form-panel {
    width: 320px;
    background: rgba(10, 10, 26, 0.88);
    backdrop-filter: blur(14px);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 24px;
    display: none;
    box-shadow: 0 8px 40px rgba(0, 0, 0, 0.6);
}

.form-panel.open {
    display: block;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from { opacity: 0; transform: translateY(20px) scale(0.95); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

.form-panel h2 {
    text-align: center;
    color: var(--gold);
    font-size: 1.1em;
    margin-bottom: 18px;
    letter-spacing: 2px;
}

.form-group {
    margin-bottom: 14px;
}

.form-group label {
    display: block;
    color: var(--text-dim);
    font-size: 0.85em;
    margin-bottom: 5px;
}

.form-group select,
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 9px 12px;
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    font-size: 0.95em;
    font-family: inherit;
    transition: border-color 0.3s;
}

.form-group select:focus,
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--gold);
}

.form-group select option {
    background: #1a1a3a;
    color: #fff;
}

.form-group textarea {
    resize: vertical;
    min-height: 64px;
    max-height: 120px;
}

.btn-submit {
    width: 100%;
    padding: 10px;
    background: linear-gradient(135deg, var(--gold), #ffaa00);
    color: #000;
    border: none;
    border-radius: 8px;
    font-size: 1em;
    font-weight: bold;
    cursor: pointer;
    transition: all 0.3s;
    letter-spacing: 2px;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--gold-glow);
}

.btn-submit:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

/* ===== 定位弹窗 ===== */
.geo-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.4s ease;
}
.geo-overlay.open {
    opacity: 1;
    pointer-events: auto;
}
.geo-dialog {
    background: linear-gradient(145deg, rgba(15, 15, 40, 0.96), rgba(5, 5, 20, 0.98));
    border: 1px solid rgba(255, 215, 0, 0.25);
    border-radius: 20px;
    padding: 0;
    width: 380px;
    max-width: 90vw;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 215, 0, 0.1);
    transform: scale(0.92) translateY(20px);
    transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.geo-overlay.open .geo-dialog {
    transform: scale(1) translateY(0);
}
.geo-dialog-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 20px 24px 12px;
    border-bottom: 1px solid rgba(255, 215, 0, 0.12);
}
.geo-dialog-header .geo-icon {
    font-size: 1.4em;
}
.geo-dialog-header h3 {
    color: var(--gold);
    font-size: 1em;
    margin: 0;
    letter-spacing: 1px;
}
.geo-dialog-body {
    padding: 16px 24px 24px;
    color: var(--text-dim);
    font-size: 0.92em;
    line-height: 1.6;
}
.geo-dialog-body p {
    margin: 0 0 12px;
}
.geo-name {
    color: var(--gold);
    font-size: 1.1em;
}
.geo-manual-tip {
    font-size: 0.88em;
    opacity: 0.8;
    margin-bottom: 10px !important;
}
.geo-manual-hint {
    font-size: 0.8em;
    opacity: 0.5;
    margin-top: 4px !important;
    margin-bottom: 10px !important;
}
.geo-input {
    width: 100%;
    padding: 9px 12px;
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    color: #fff;
    font-size: 0.95em;
    box-sizing: border-box;
    margin-bottom: 8px;
    font-family: inherit;
}
.geo-input:focus {
    outline: none;
    border-color: var(--gold);
}
.geo-select {
    width: 100%;
    padding: 9px 12px;
    background: rgba(0, 0, 0, 0.45);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    color: #fff;
    font-size: 0.95em;
    box-sizing: border-box;
    margin-bottom: 8px;
    font-family: inherit;
    appearance: auto;
}
.geo-select:focus {
    outline: none;
    border-color: var(--gold);
}
.geo-select option {
    background: #1a1a3a;
    color: #fff;
}
.geo-btns {
    display: flex;
    gap: 10px;
    margin-top: 12px;
}
.geo-btn {
    flex: 1;
    padding: 10px 14px;
    border: none;
    border-radius: 8px;
    font-size: 0.9em;
    cursor: pointer;
    transition: all 0.25s;
    font-family: inherit;
    font-weight: 500;
}
.geo-btn-yes {
    background: linear-gradient(135deg, var(--gold), #ffaa00);
    color: #000;
}
.geo-btn-yes:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 16px rgba(255, 215, 0, 0.35);
}
.geo-btn-no {
    background: rgba(255, 255, 255, 0.08);
    color: #ccc;
    border: 1px solid rgba(255, 255, 255, 0.15);
}
.geo-btn-no:hover {
    background: rgba(255, 255, 255, 0.15);
}
.geo-btn-search {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: #fff;
}
.geo-btn-search:hover {
    transform: scale(1.03);
    box-shadow: 0 4px 16px rgba(102, 126, 234, 0.35);
}
.geo-btn-skip {
    background: rgba(255, 255, 255, 0.06);
    color: #999;
    border: 1px solid rgba(255, 255, 255, 0.08);
}
.geo-btn-skip:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #ddd;
}

/* ===== Toast 提示 ===== */
.toast {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--bg-card);
    border: 1px solid var(--gold);
    border-radius: 10px;
    padding: 14px 28px;
    color: #fff;
    font-size: 1em;
    z-index: 9999;
    backdrop-filter: blur(10px);
    opacity: 0;
    transition: opacity 0.4s, transform 0.4s;
    pointer-events: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.error {
    border-color: #ff4444;
}

/* ===== 加载状态 ===== */
.loading {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--text-dim);
    font-size: 0.9em;
}

.loading::after {
    content: '';
    width: 18px;
    height: 18px;
    border: 2px solid var(--border);
    border-top-color: var(--gold);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* ===== 响应式 ===== */
@media (max-width: 768px) {
    .header-overlay {
        top: 12px;
        left: 12px;
        right: 12px;
        padding: 12px 16px;
        text-align: center;
    }

    .header-overlay h1 {
        font-size: 1.1em;
    }

    .header-overlay .subtitle {
        font-size: 0.75em;
    }

    .header-overlay .count-info {
        font-size: 0.75em;
    }

    .form-float {
        right: 12px;
        bottom: 68px;
    }

    .form-panel {
        width: 280px;
    }

    .marquee-title {
        display: none;
    }

    .marquee-track {
        margin-left: 0;
    }
}

@media (max-width: 480px) {
    .header-overlay h1 {
        font-size: 1em;
    }

    .form-panel {
        width: calc(100vw - 40px);
        right: 0;
    }

    .form-toggle {
        width: 44px;
        height: 44px;
        font-size: 1.3em;
    }
}