/* ========== 黄金比例工具页面专用样式 ========== */
/* 版本: 1.0.0 | 栏目: 工具资源 > 黄金比例 | 作者: 芦笛 */

/* ===== 栏目专属色变量 ===== */
:root {
    --color-golden-primary: #9B7F6E;
    --color-golden-dark: #7B5548;
    --color-golden-light: #B8A07A;
    --color-golden-accent: #C4A77D;
    --color-golden-pale: #F5F0E8;
    --color-golden-cream: #FAF7F2;
}

/* ===== 页面头部 ===== */
.page-header-golden {
    position: relative;
    min-height: 65vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #9B7F6E, #7B5548, #8B6F5E, #6B4A3E);
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
    overflow: hidden;
}

.page-header-golden::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='100' height='100' viewBox='0 0 100 100' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M11 18c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm48 25c3.866 0 7-3.134 7-7s-3.134-7-7-7-7 3.134-7 7 3.134 7 7 7zm-43-7c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm63 31c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM34 90c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zm56-76c1.657 0 3-1.343 3-3s-1.343-3-3-3-3 1.343-3 3 1.343 3 3 3zM12 86c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm28-65c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm23-11c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-6 60c2.21 0 4-1.79 4-4s-1.79-4-4-4-4 1.79-4 4 1.79 4 4 4zm29 22c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zM32 63c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm57-13c2.76 0 5-2.24 5-5s-2.24-5-5-5-5 2.24-5 5 2.24 5 5 5zm-9-21c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM60 91c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM35 41c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2zM12 60c1.105 0 2-.895 2-2s-.895-2-2-2-2 .895-2 2 .895 2 2 2z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
    pointer-events: none;
}

.page-header-golden::after {
    content: '';
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
    height: 100px;
    background: var(--color-cream);
    clip-path: ellipse(70% 100% at 50% 100%);
}

.page-header-golden .page-header-content {
    position: relative;
    z-index: 1;
    text-align: center;
    color: white;
    padding: var(--space-xl) var(--space-md) var(--space-lg);
    max-width: 800px;
}

.phi-symbol {
    font-family: 'Times New Roman', serif;
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 400;
    opacity: 0.25;
    line-height: 1;
    margin-bottom: var(--space-xs);
    letter-spacing: 0;
}

.page-header-golden .page-title {
    font-family: var(--font-display);
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 900;
    margin-bottom: var(--space-sm);
    letter-spacing: 12px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.page-header-golden .page-subtitle {
    font-size: 1.05rem;
    opacity: 0.75;
    max-width: 560px;
    margin: 0 auto;
    line-height: 2;
    font-weight: 300;
    letter-spacing: 1px;
}

.phi-value {
    margin-top: var(--space-md);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    opacity: 0.5;
    letter-spacing: 2px;
}

/* ===== 面包屑 ===== */
.breadcrumb-wrap {
    background: var(--color-cream);
    padding: var(--space-sm) 0;
    border-bottom: 1px solid rgba(30, 30, 36, 0.04);
}

.breadcrumb-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

/* ===== 简介区 ===== */
.intro-section {
    padding: var(--space-2xl) var(--space-md);
    background: var(--color-cream);
}

.intro-container {
    max-width: 1200px;
    margin: 0 auto;
}

.intro-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: var(--space-xl);
    align-items: start;
}

@media (max-width: 968px) {
    .intro-grid {
        grid-template-columns: 1fr;
        gap: var(--space-lg);
    }
}

.intro-text h3 {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 2px;
    padding-left: 12px;
    border-left: 3px solid var(--color-golden-accent);
}

.intro-text p {
    font-size: 0.95rem;
    color: var(--color-warm-gray);
    line-height: 2;
    margin-bottom: var(--space-sm);
    font-weight: 300;
}

.intro-text strong {
    color: var(--color-dark);
    font-weight: 600;
}

.fib-table-wrap {
    overflow-x: auto;
    margin: var(--space-sm) 0;
}

.fib-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
    font-family: var(--font-mono);
}

.fib-table th,
.fib-table td {
    padding: 8px 12px;
    text-align: center;
    border-bottom: 1px solid rgba(30, 30, 36, 0.06);
}

.fib-table th {
    background: rgba(155, 127, 110, 0.08);
    color: var(--color-dark);
    font-weight: 600;
    font-family: var(--font-body);
    font-size: 0.8rem;
}

.fib-table td {
    color: var(--color-warm-gray);
}

.fib-table tbody tr:hover td {
    background: rgba(155, 127, 110, 0.04);
}

.intro-visual {
    position: sticky;
    top: 100px;
}

.canvas-wrap {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(30, 30, 36, 0.04);
}

.canvas-wrap canvas {
    width: 100%;
    height: auto;
    display: block;
}

.canvas-caption {
    padding: 10px 16px;
    font-size: 0.75rem;
    color: var(--color-warm-gray);
    text-align: center;
    background: var(--color-golden-cream);
    border-top: 1px solid rgba(30, 30, 36, 0.04);
}

.nature-examples {
    margin-top: var(--space-md);
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(30, 30, 36, 0.04);
}

.nature-examples h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
}

.nature-examples ul {
    list-style: none;
}

.nature-examples li {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    margin-bottom: 8px;
    font-weight: 300;
}

.nature-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
    margin-top: 1px;
}

/* ===== 计算器区 ===== */
.calculator-section {
    padding: var(--space-2xl) var(--space-md);
    background: linear-gradient(180deg, white 0%, var(--color-golden-pale) 100%);
}

.calculator-container {
    max-width: 1200px;
    margin: 0 auto;
}

.calc-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl);
    align-items: start;
}

@media (max-width: 968px) {
    .calc-wrapper {
        grid-template-columns: 1fr;
    }
}

.calc-panel {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(30, 30, 36, 0.04);
}

.calc-input-group {
    margin-bottom: var(--space-md);
}

.calc-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-dark);
    margin-bottom: 8px;
    letter-spacing: 0.5px;
}

.calc-input-row {
    display: flex;
    gap: 8px;
}

.calc-input {
    flex: 1;
    padding: 12px 16px;
    border: 1.5px solid rgba(30, 30, 36, 0.1);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: var(--font-mono);
    color: var(--color-dark);
    background: var(--color-cream);
    transition: var(--transition-fast);
    outline: none;
}

.calc-input:focus {
    border-color: var(--color-golden-accent);
    box-shadow: 0 0 0 3px rgba(196, 167, 125, 0.15);
}

.calc-select {
    padding: 12px 16px;
    border: 1.5px solid rgba(30, 30, 36, 0.1);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--color-dark);
    background: var(--color-cream);
    cursor: pointer;
    outline: none;
    min-width: 120px;
}

.calc-mode-group {
    margin-bottom: var(--space-md);
}

.calc-modes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

@media (max-width: 640px) {
    .calc-modes {
        grid-template-columns: 1fr;
    }
}

.calc-mode-btn {
    padding: 12px 14px;
    border: 1.5px solid rgba(30, 30, 36, 0.08);
    border-radius: var(--radius-md);
    background: white;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.calc-mode-btn:hover {
    border-color: var(--color-golden-accent);
    background: rgba(196, 167, 125, 0.04);
}

.calc-mode-btn.active {
    border-color: var(--color-golden-primary);
    background: rgba(155, 127, 110, 0.08);
}

.mode-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-dark);
}

.mode-formula {
    font-size: 0.75rem;
    color: var(--color-warm-gray);
    font-family: var(--font-mono);
}

.calc-results {
    background: var(--color-golden-pale);
    border-radius: var(--radius-md);
    padding: var(--space-md);
    margin-bottom: var(--space-md);
    border: 1px solid rgba(155, 127, 110, 0.1);
}

.result-item {
    display: flex;
    align-items: baseline;
    gap: 8px;
    flex-wrap: wrap;
}

.result-label {
    font-size: 0.8rem;
    color: var(--color-warm-gray);
    font-weight: 500;
}

.result-value {
    font-family: var(--font-mono);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-golden-dark);
    line-height: 1.2;
}

.result-unit {
    font-size: 0.9rem;
    color: var(--color-golden-primary);
    font-weight: 500;
}

.result-detail {
    margin-top: 8px;
    font-size: 0.8rem;
    color: var(--color-warm-gray);
    line-height: 1.6;
}

.result-detail p {
    margin-bottom: 4px;
}

.calc-actions {
    display: flex;
    gap: var(--space-sm);
}

.calc-preview {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(30, 30, 36, 0.04);
}

.preview-canvas-wrap {
    position: relative;
    aspect-ratio: 1.618;
    background: var(--color-golden-cream);
}

.preview-canvas-wrap canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.preview-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(250, 247, 242, 0.9);
    color: var(--color-warm-gray);
    font-size: 0.9rem;
    transition: opacity 0.3s ease;
}

.preview-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.preview-info {
    padding: var(--space-md);
}

.preview-dims {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.preview-dims span {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    font-family: var(--font-mono);
}

/* ===== 可视化工具区 ===== */
.visual-section {
    padding: var(--space-2xl) var(--space-md);
    background: var(--color-cream);
}

.visual-container {
    max-width: 1200px;
    margin: 0 auto;
}

.visual-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: var(--space-lg);
    flex-wrap: wrap;
    justify-content: center;
}

.visual-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border: 1.5px solid rgba(30, 30, 36, 0.08);
    border-radius: var(--radius-full);
    background: white;
    cursor: pointer;
    transition: var(--transition-fast);
    font-size: 0.9rem;
    color: var(--color-warm-gray);
    font-weight: 500;
}

.visual-tab:hover {
    border-color: var(--color-golden-accent);
    color: var(--color-dark);
}

.visual-tab.active {
    background: var(--color-golden-primary);
    color: white;
    border-color: var(--color-golden-primary);
}

.tab-icon {
    font-size: 1.1rem;
}

.visual-content {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(30, 30, 36, 0.04);
}

.visual-panel {
    display: none;
    grid-template-columns: 280px 1fr;
    gap: 0;
    min-height: 500px;
}

.visual-panel.active {
    display: grid;
}

@media (max-width: 968px) {
    .visual-panel {
        grid-template-columns: 1fr;
    }
    .visual-panel.active {
        display: flex;
        flex-direction: column;
    }
}

.panel-controls {
    padding: var(--space-lg);
    background: var(--color-golden-cream);
    border-right: 1px solid rgba(30, 30, 36, 0.04);
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

@media (max-width: 968px) {
    .panel-controls {
        border-right: none;
        border-bottom: 1px solid rgba(30, 30, 36, 0.04);
    }
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.control-group label {
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--color-dark);
    letter-spacing: 0.5px;
}

.control-inputs {
    display: flex;
    align-items: center;
    gap: 6px;
}

.control-inputs input {
    width: 70px;
    padding: 8px 10px;
    border: 1.5px solid rgba(30, 30, 36, 0.1);
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-family: var(--font-mono);
    text-align: center;
    background: white;
    outline: none;
}

.control-inputs input:focus {
    border-color: var(--color-golden-accent);
}

.control-inputs span {
    font-size: 0.8rem;
    color: var(--color-warm-gray);
}

.control-slider {
    width: 100%;
    height: 4px;
    border-radius: 2px;
    background: rgba(30, 30, 36, 0.1);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
}

.control-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-golden-primary);
    cursor: pointer;
    border: 2px solid white;
    box-shadow: var(--shadow-sm);
}

.control-slider::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--color-golden-primary);
    cursor: pointer;
    border: 2px solid white;
    box-shadow: var(--shadow-sm);
}

.slider-value {
    font-size: 0.85rem;
    color: var(--color-golden-primary);
    font-weight: 600;
    font-family: var(--font-mono);
    text-align: right;
}

.control-checkbox {
    display: flex;
    align-items: center;
    gap: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    font-weight: 400;
}

.control-checkbox input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--color-golden-primary);
    cursor: pointer;
}

.btn-sm {
    padding: 0.6rem 1.2rem;
    font-size: 0.8rem;
}

.panel-canvas {
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 400px;
    position: relative;
}

.panel-canvas canvas {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.thirds-legend {
    margin-top: var(--space-md);
    padding: var(--space-sm) var(--space-md);
    background: var(--color-golden-pale);
    border-radius: var(--radius-md);
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    max-width: 600px;
    text-align: center;
}

.thirds-legend strong {
    color: var(--color-dark);
}

/* ===== 应用场景区 ===== */
.applications-section {
    padding: var(--space-2xl) var(--space-md);
    background: linear-gradient(180deg, var(--color-golden-pale) 0%, white 50%, var(--color-cream) 100%);
}

.applications-container {
    max-width: 1200px;
    margin: 0 auto;
}

.apps-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
    margin-top: var(--space-lg);
}

@media (max-width: 968px) {
    .apps-grid {
        grid-template-columns: 1fr;
    }
}

.app-card {
    background: white;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition-normal);
    border: 1px solid rgba(30, 30, 36, 0.04);
}

.app-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
}

.app-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, var(--color-golden-primary), var(--color-golden-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    margin: var(--space-md) var(--space-md) 0;
}

.app-title {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--color-dark);
    margin: var(--space-sm) var(--space-md) 0;
    letter-spacing: 1px;
}

.app-canvas-wrap {
    padding: var(--space-md);
    background: var(--color-golden-cream);
    margin: var(--space-sm) 0;
}

.app-canvas-wrap canvas,
.app-canvas-wrap img {
    width: 100%;
    height: auto;
    display: block;
    border-radius: var(--radius-sm);
    background: white;
}

.app-content {
    padding: 0 var(--space-md) var(--space-md);
}

.app-content p {
    font-size: 0.88rem;
    color: var(--color-warm-gray);
    line-height: 1.8;
    margin-bottom: var(--space-sm);
    font-weight: 300;
}

.app-tips {
    list-style: none;
}

.app-tips li {
    font-size: 0.82rem;
    color: var(--color-warm-gray);
    line-height: 1.9;
    padding-left: 16px;
    position: relative;
    font-weight: 300;
}

.app-tips li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--color-golden-accent);
    font-size: 0.5rem;
    top: 2px;
}

/* ===== 速查手册区 ===== */
.cheatsheet-section {
    padding: var(--space-2xl) var(--space-md);
    background: white;
}

.cheatsheet-container {
    max-width: 1200px;
    margin: 0 auto;
}

.cheatsheet-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

@media (max-width: 768px) {
    .cheatsheet-grid {
        grid-template-columns: 1fr;
    }
}

.cheatsheet-card {
    background: var(--color-cream);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    border: 1px solid rgba(30, 30, 36, 0.04);
    transition: var(--transition-normal);
}

.cheatsheet-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.cheatsheet-card h4 {
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
}

.cheatsheet-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.82rem;
}

.cheatsheet-table th,
.cheatsheet-table td {
    padding: 8px 10px;
    text-align: left;
    border-bottom: 1px solid rgba(30, 30, 36, 0.06);
}

.cheatsheet-table th {
    color: var(--color-dark);
    font-weight: 600;
    font-size: 0.78rem;
    background: rgba(155, 127, 110, 0.06);
}

.cheatsheet-table td {
    color: var(--color-warm-gray);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.cheatsheet-table td:last-child {
    font-family: var(--font-body);
    font-size: 0.78rem;
}

.cheatsheet-table tbody tr:hover td {
    background: rgba(155, 127, 110, 0.03);
}

/* ===== 技术规格区 ===== */
.specs-section {
    padding: var(--space-2xl) var(--space-md);
    background: var(--color-cream);
}

.specs-container {
    max-width: 1200px;
    margin: 0 auto;
}

.specs-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
    margin-top: var(--space-lg);
}

@media (max-width: 968px) {
    .specs-grid {
        grid-template-columns: 1fr;
    }
}

.spec-card {
    background: white;
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid rgba(30, 30, 36, 0.04);
}

.spec-card h4 {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-dark);
    margin-bottom: var(--space-sm);
    letter-spacing: 1px;
}

.spec-card ul {
    list-style: none;
}

.spec-card li {
    font-size: 0.85rem;
    color: var(--color-warm-gray);
    line-height: 2;
    padding-left: var(--space-sm);
    position: relative;
    font-weight: 300;
}

.spec-card li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--color-golden-accent);
    font-size: 0.5rem;
    top: 2px;
}

/* ===== CTA 区 ===== */
.cta-section {
    padding: var(--space-2xl) var(--space-md);
    background: linear-gradient(135deg, var(--color-golden-dark), #6B4A3E, var(--color-golden-primary));
    background-size: 400% 400%;
    animation: gradient-shift 15s ease infinite;
    text-align: center;
    color: white;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.02'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.cta-content {
    position: relative;
    z-index: 1;
    max-width: 600px;
    margin: 0 auto;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(1.8rem, 3.5vw, 2.6rem);
    font-weight: 700;
    margin-bottom: var(--space-sm);
    letter-spacing: 3px;
}

.cta-desc {
    font-size: 1rem;
    opacity: 0.7;
    margin-bottom: var(--space-lg);
    font-weight: 300;
    line-height: 1.9;
}

.cta-buttons {
    display: flex;
    gap: var(--space-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Toast ===== */
.toast {
    position: fixed;
    bottom: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--color-dark);
    color: white;
    padding: 12px 24px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    z-index: 9999;
    opacity: 0;
    transition: all 0.3s ease;
    pointer-events: none;
    box-shadow: var(--shadow-lg);
}

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

/* ===== 响应式补充 ===== */
@media (max-width: 768px) {
    .page-header-golden .page-title {
        letter-spacing: 6px;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .cta-buttons .btn {
        width: 100%;
        max-width: 280px;
    }

    .visual-tabs {
        justify-content: flex-start;
        overflow-x: auto;
        padding-bottom: 4px;
        flex-wrap: nowrap;
    }

    .visual-tab {
        white-space: nowrap;
        flex-shrink: 0;
    }

    .calc-actions {
        flex-direction: column;
    }

    .calc-actions .btn {
        width: 100%;
    }
}

/* ===== 卡片 stagger 动画 ===== */
/* 所有卡片均使用 .reveal 类，由 global.js 的 IntersectionObserver 统一控制 */
/* 不在此处重复定义 opacity，避免与 .reveal.visible 冲突 */