/* 基础样式 */
:root {
    /* 灰白配色系统 - 白天模式 */
    --primary-color: #333333;           /* 深灰 - 主色调 */
    --secondary-color: #666666;        /* 中灰 - 次级色调 */
    --tertiary-color: #999999;         /* 浅灰 - 辅助色调 */
    --accent-color: #ffffff;           /* 白色 - 点缀 */

    --light-color: #f8f9fa;            /* 极浅灰（背景） */
    --dark-color: #212529;             /* 深灰（文字） */
    --gray-color: #6c757d;             /* 中灰（次级文字） */
    --light-gray: #e9ecef;             /* 浅灰（卡片背景） */

    --card-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
    --shadow-float: 0 12px 30px rgba(0, 0, 0, 0.12);

    --transition: all 0.3s ease;
    --radius-lg: 18px;
    --radius-xl: 24px;
    --border-subtle: rgba(108, 117, 125, 0.15);
    
    /* 排版 */
    --heading-font: 'Inter', system-ui, sans-serif;
    --body-font: 'Inter', system-ui, sans-serif;
}

.dark-theme {
    --primary-color: #c8102e;           /* 奥迪红 - 主色调 */
    --secondary-color: #1e2125;        /* 深灰 - 次级色调 */
    --tertiary-color: #8f8f8f;         /* 浅灰 - 辅助色调 */
    --accent-color: #ffffff;           /* 白色 - 点缀 */

    --light-color: #050608;
    --dark-color: #f5f5f5;
    --gray-color: #a0a0a5;
    --light-gray: #141519;
    --card-shadow: 0 24px 70px rgba(0, 0, 0, 0.85);
    --border-subtle: rgba(120, 125, 135, 0.45);
    --shadow-float: 0 32px 90px rgba(0, 0, 0, 0.9);
}

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

html,
body {
    scroll-behavior: smooth;
}

body {
    font-family: var(--body-font);
    line-height: 1.6;
    color: var(--dark-color);
    background: var(--light-color);
    transition: var(--transition);
}

.dark-theme body {
    background:
        radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.04), transparent 55%),
        radial-gradient(circle at 100% 0%, rgba(200, 16, 46, 0.10), transparent 55%),
        linear-gradient(160deg, #050608 0%, #111318 45%, #050608 100%);
    color: #f5f5f5;
}

:focus-visible {
    outline: 3px solid rgba(200, 16, 46, 0.45);
    outline-offset: 2px;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* 导航栏 */
.navbar {
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(16px);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.99);
    box-shadow: 0 2px 16px rgba(0, 0, 0, 0.1);
    padding: 0.8rem 0;
}

.logo {
    color: var(--dark-color);
}

.logo i {
    color: var(--primary-color);
    font-size: 1.8rem;
}

.logo-img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-link {
    color: var(--dark-color);
}

.dark-theme .navbar {
    background: rgba(0, 0, 0, 0.94);
    box-shadow: 0 2px 18px rgba(0, 0, 0, 0.55);
}

.dark-theme .navbar.scrolled {
    background: rgba(0, 0, 0, 0.98);
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.65);
}

.dark-theme .logo {
    color: #ffffff;
}

.dark-theme .logo i {
    color: #ffffff;
}

.dark-theme .nav-link {
    color: #f5f5f5;
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 1rem 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--dark-color);
    letter-spacing: .1em;
    text-transform: uppercase;
}

.logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.3;
    align-items: center;
}

.logo-main {
    font-size: 1.5rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

.logo-sub {
    font-size: 0.95rem;
    font-weight: 400;
    letter-spacing: 0.2em;
    color: var(--gray-color);
    text-transform: none;
    margin-top: 2px;
    font-family: 'Ma Shan Zheng', 'ZCOOL XiaoWei', cursive;
    font-style: italic;
}

.dark-theme .logo-sub {
    color: rgba(220, 220, 225, 0.65);
}

.logo i {
    color: var(--primary-color);
}

.nav-toggle {
    display: none;
    width: 40px;
    height: 40px;
    border-radius: 999px;
    border: 1px solid rgba(108, 117, 125, 0.4);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(8px);
    justify-content: center;
    align-items: center;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    transition: var(--transition);
}

.dark-theme .nav-toggle {
    background: rgba(0, 0, 0, 0.85);
    border-color: rgba(233, 236, 239, 0.2);
}

.nav-toggle span {
    width: 18px;
    height: 2px;
    border-radius: 999px;
    background: var(--dark-color);
    transition: var(--transition);
}

.dark-theme .nav-toggle span {
    background: #f5f5f5;
}

.nav-toggle.open span:nth-child(1) {
    transform: translateY(4px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
    transform: translateY(-4px) rotate(-45deg);
}

.nav-menu {
    display: flex;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -6px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.2s ease;
}

.nav-link:hover {
    color: var(--primary-color);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-link-special {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 500;
    font-size: 1.25rem;
    font-family: "ZCOOL XiaoWei", "Ma Shan Zheng", "STKaiti", "KaiTi", cursive;
    margin-right: 1.5rem;
    letter-spacing: 0.12em;
    display: flex;
    align-items: center;
    line-height: 1;
}

.nav-link-special::after {
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
}

.dark-theme .nav-link-special {
    background: linear-gradient(135deg, #c8102e, #e61c3a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dark-theme .nav-link-special::after {
    background: linear-gradient(90deg, #c8102e, #e61c3a);
}

.nav-actions {
    display: flex;
    align-items: center;
}

/* 按钮 */
.btn {
    padding: 0.8rem 1.5rem;
    border-radius: 999px;
    border: none;
    font-family: inherit;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--primary-color);
    color: #ffffff;
}

.btn-primary:hover {
    background: #1a1a1a;
    transform: translateY(-1px);
}

.btn-outline {
    background: transparent;
    border: 1px solid rgba(108, 117, 125, 0.3);
    color: var(--dark-color);
}

.btn-outline:hover {
    background: rgba(108, 117, 125, 0.05);
}

.btn-ghost {
    background: transparent;
    border: 1px solid transparent;
    color: var(--dark-color);
    padding-inline: 1rem;
}

.btn-ghost:hover {
    background: rgba(108, 117, 125, 0.05);
    border-color: rgba(108, 117, 125, 0.2);
}

.dark-theme .btn-outline {
    background: transparent;
    border: 1px solid rgba(245, 245, 245, 0.4);
    color: #f5f5f5;
}

.dark-theme .btn-outline:hover {
    background: rgba(245, 245, 245, 0.06);
}

.dark-theme .btn-ghost {
    background: transparent;
    border: 1px solid transparent;
    color: #f5f5f5;
    padding-inline: 1rem;
}

.dark-theme .btn-ghost:hover {
    background: rgba(245, 245, 245, 0.05);
    border-color: rgba(245, 245, 245, 0.12);
}

.btn-arrow {
    display: inline-block;
    transform: translateX(0);
    transition: transform 0.2s ease;
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* 英雄区域 */
.hero-section {
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
    min-height: 90vh;
    color: var(--dark-color);
    position: relative;
    overflow: hidden;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-radius: 12px;
    margin: 8rem auto 4rem;
    max-width: 1200px;
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.08),
        0 1px 3px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.hero-section::after {
    content: '';
    position: absolute;
    top: -1px;
    left: -1px;
    right: -1px;
    bottom: -1px;
    background: linear-gradient(135deg, rgba(108, 117, 125, 0.1), rgba(255, 255, 255, 0.3), rgba(108, 117, 125, 0.1));
    border-radius: 12px;
    z-index: -1;
    opacity: 0.8;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(135deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 249, 250, 0.98) 100%),
        radial-gradient(circle at 80% 20%, rgba(108, 117, 125, 0.08) 0%, transparent 50%);
    pointer-events: none;
    border-radius: inherit;
}

.dark-theme .hero-section {
    color: #f5f5f5;
    background: rgba(0, 0, 0, 0.6);
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.1),
        0 1px 3px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.dark-theme .hero-section::before {
    background: 
        linear-gradient(135deg, rgba(12, 15, 20, 0.8) 0%, rgba(5, 6, 8, 0.95) 100%),
        radial-gradient(circle at 80% 20%, rgba(200, 16, 46, 0.15) 0%, transparent 50%);
}

.dark-theme .hero-section::after {
    background: linear-gradient(135deg, rgba(200, 16, 46, 0.3), rgba(255, 255, 255, 0.1), rgba(200, 16, 46, 0.3));
}

.hero-content {
    position: relative;
    z-index: 1;
    padding: 2rem;
}
.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.4rem 1rem;
    border-radius: 999px;
    border: 1px solid rgba(108, 117, 125, 0.2);
    background: rgba(108, 117, 125, 0.06);
    color: var(--dark-color);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.hero-title {
    font-family: 'Inter', sans-serif;
    letter-spacing: -0.02em;
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    color: var(--dark-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
    position: relative;
}

.hero-title::after {
    content: '';
    position: absolute;
    bottom: -12px;
    left: 0;
    width: 80px;
    height: 3px;
    background: var(--primary-color);
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--gray-color);
    margin-bottom: 2.5rem;
    max-width: 48ch;
    line-height: 1.6;
}

.dark-theme .hero-title {
    color: #ffffff;
}

.dark-theme .hero-subtitle {
    color: rgba(245, 245, 245, 0.65);
}

.hero-actions {
    display: flex;
    gap: 1.5rem;
}

.hero-illustration {
    position: relative;
    padding: 3rem;
    border-radius: 12px;
    background: rgba(108, 117, 125, 0.08);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 1px solid rgba(108, 117, 125, 0.2);
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.08),
        0 1px 3px rgba(0, 0, 0, 0.05);
}




.hero-illustration i {
    font-size: 7rem;
    color: var(--primary-color);
    opacity: 0.9;
    filter: 
        drop-shadow(0 20px 40px rgba(0, 0, 0, 0.1))
        drop-shadow(0 0 20px rgba(108, 117, 125, 0.2));
    transition: transform 0.6s ease;
}

.hero-illustration:hover i {
    transform: scale(1.05) rotate(5deg);
}

/* 工具区域 */
.tools-section {
    padding: 6rem 0;
}

.tools-wrapper {
    display: flex;
    gap: 2rem;
    align-items: flex-start;
}

.tools-main {
    flex: 1;
    min-width: 0;
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1.25rem;
    margin-bottom: 1.25rem;
}

.section-head .section-title {
    text-align: left;
    margin-bottom: 0.5rem;
}

.section-head .section-subtitle {
    text-align: left;
    margin-bottom: 0;
    max-width: 54ch;
}

.tool-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin: 1.25rem 0 2rem;
}

.tool-filter-btn {
    border: 1px solid var(--border-subtle);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    color: var(--dark-color);
    padding: 0.55rem 0.9rem;
    border-radius: 999px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    font-size: 0.9rem;
}

.tool-filter-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.1);
}

.tool-filter-btn.active {
    border-color: rgba(108, 117, 125, 0.4);
    background: rgba(108, 117, 125, 0.14);
    color: var(--dark-color);
}

.tool-card.is-hidden {
    display: none;
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--gray-color);
    margin-bottom: 3rem;
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.tool-card {
    background: #ffffff;
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.08),
        0 1px 3px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    transition: var(--transition);
    border: 1px solid rgba(108, 117, 125, 0.1);
    position: relative;
    overflow: hidden;
}

.tool-card:hover {
    transform: translateY(-10px);
    box-shadow:
        0 10px 15px rgba(0, 0, 0, 0.1),
        0 4px 6px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

/* 克制入场动画（大厂风格：轻、稳、干净） */
.reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity 0.7s ease, transform 0.7s ease;
    will-change: opacity, transform;
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

.tool-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 0 0, rgba(108, 117, 125, 0.08), transparent 55%);
    opacity: 0;
    transition: var(--transition);
    pointer-events: none;
}

.tool-card:hover::before {
    opacity: 1;
}

.tool-card--media::before {
    background: radial-gradient(circle at 0 0, rgba(108, 117, 125, 0.12), transparent 55%);
}

.tool-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.tool-title {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.tool-description {
    color: var(--gray-color);
    margin-bottom: 1.5rem;
}

.tool-open-btn {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 0.8rem 1.5rem;
    border-radius: 999px;
    cursor: pointer;
    transition: var(--transition);
    width: 100%;
    font-weight: 500;
    font-size: 0.95rem;
}

.tool-open-btn:hover {
    background: #1a1a1a;
    transform: translateY(-1px);
}

/* 精选工具卡片（参考风格融合） */
.tool-card--media {
    padding: 0;
    text-align: left;
    border-radius: 12px;
    background: #ffffff;
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.08),
        0 1px 3px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(108, 117, 125, 0.1);
    text-decoration: none;
    color: inherit;
    display: block;
}

.tool-card--media:hover {
    transform: translateY(-8px);
    box-shadow:
        0 10px 15px rgba(0, 0, 0, 0.1),
        0 4px 6px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

.tool-media {
    height: 200px;
    overflow: hidden;
    border-top-left-radius: 12px;
    border-top-right-radius: 12px;
    position: relative;
}

.tool-media-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transform: scale(1);
    transition: transform 0.6s ease;
    filter: saturate(1.05) contrast(1.03);
}

.tool-card--media:hover .tool-media-img {
    transform: scale(1.08);
}

.tool-media-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(18, 18, 18, 0.55), rgba(18, 18, 18, 0.05));
    pointer-events: none;
}

.tool-badges {
    position: absolute;
    inset: 16px 16px auto 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    pointer-events: none;
}

.tool-badge {
    display: inline-flex;
    align-items: center;
    height: 28px;
    padding: 0 10px;
    border-radius: 999px;
    font-size: 0.8rem;
    backdrop-filter: blur(10px);
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.18);
    border: 1px solid rgba(255, 255, 255, 0.28);
    pointer-events: none;
    white-space: nowrap;
}

.tool-badge--category {
    background: rgba(255, 255, 255, 0.78);
    color: rgba(15, 23, 42, 0.9);
}

.tool-badge--new {
    background: rgba(67, 97, 238, 0.92);
    color: #fff;
    border-color: rgba(67, 97, 238, 0.15);
}

.tool-body {
    padding: 1.25rem 1.25rem 1.4rem;
}

.tool-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 0.5rem;
}

.tool-icon-bubble {
    width: 40px;
    height: 40px;
    border-radius: 12px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 117, 125, 0.1);
    border: 1px solid rgba(108, 117, 125, 0.2);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.08);
}

.tool-icon-bubble i {
    color: var(--primary-color);
}

.tool-card--media .tool-title {
    margin: 0;
    font-size: 1.2rem;
    color: var(--dark-color);
}

.tool-card--media .tool-description {
    margin: 0.25rem 0 1rem;
    min-height: 44px;
    color: var(--gray-color);
}

.tool-open-btn--secondary {
    background: rgba(108, 117, 125, 0.1);
    color: var(--primary-color);
    border: 1px solid rgba(108, 117, 125, 0.2);
    border-radius: 999px;
    padding: 0.85rem 1rem;
    font-weight: 600;
    font-size: 0.95rem;
}

.tool-open-btn--secondary:hover {
    background: rgba(108, 117, 125, 0.15);
    color: var(--primary-color);
    transform: translateY(-1px);
}

.tool-open-btn-arrow {
    display: inline-block;
    transform: translateX(0);
    transition: transform 0.2s ease;
}

.tool-open-btn--secondary:hover .tool-open-btn-arrow {
    transform: translateX(4px);
}

/* 占位卡（更多工具） */
.tool-card--placeholder {
    border-radius: 12px;
    padding: 2.2rem;
    border: 2px dashed rgba(108, 117, 125, 0.3);
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.08),
        0 1px 3px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    text-align: center;
}

.tool-placeholder-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 1rem;
    border-radius: 999px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 117, 125, 0.1);
    color: var(--primary-color);
    font-size: 1.4rem;
}

.tool-placeholder-title {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

.tool-placeholder-desc {
    color: var(--gray-color);
    margin: 0 auto 1.25rem;
    max-width: 42ch;
}

.tool-placeholder-btn {
    border-radius: 999px;
}

/* 联系方式侧边栏 */
.contact-sidebar {
    width: 280px;
    flex-shrink: 0;
    position: sticky;
    top: 100px;
}

.contact-card {
    background: #ffffff;
    border-radius: 18px;
    padding: 1.5rem;
    box-shadow: 
        0 8px 24px rgba(0, 0, 0, 0.08),
        0 2px 8px rgba(0, 0, 0, 0.04);
    border: 1px solid rgba(108, 117, 125, 0.1);
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateY(-4px);
    box-shadow: 
        0 12px 32px rgba(0, 0, 0, 0.12),
        0 4px 12px rgba(0, 0, 0, 0.08);
}

.contact-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(108, 117, 125, 0.1);
}

.contact-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
}

.contact-info {
    flex: 1;
}

.contact-name {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

.contact-desc {
    font-size: 0.85rem;
    color: var(--gray-color);
}

.contact-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    background: rgba(108, 117, 125, 0.05);
    border-radius: 12px;
    transition: var(--transition);
}

.contact-item:hover {
    background: rgba(108, 117, 125, 0.1);
    transform: translateX(4px);
}

.contact-icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: rgba(108, 117, 125, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary-color);
    font-size: 1rem;
}

.contact-detail {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}

.contact-label {
    font-size: 0.75rem;
    color: var(--gray-color);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.contact-value {
    font-size: 0.9rem;
    color: var(--dark-color);
    font-weight: 500;
}

.contact-qr {
    padding-top: 1rem;
    border-top: 1px solid rgba(108, 117, 125, 0.1);
}

.qr-placeholder {
    width: 100%;
    height: 120px;
    background: linear-gradient(135deg, rgba(108, 117, 125, 0.05), rgba(108, 117, 125, 0.1));
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    color: var(--gray-color);
    font-size: 0.85rem;
}

.qr-placeholder i {
    font-size: 2.5rem;
    opacity: 0.5;
}

.qr-code {
    width: 100%;
    background: white;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(108, 117, 125, 0.1);
    transition: var(--transition);
}

.qr-code:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.12);
}

.qr-image {
    width: 120px;
    height: 120px;
    object-fit: contain;
    border-radius: 8px;
}

.qr-text {
    color: var(--dark-color);
    font-size: 0.85rem;
    font-weight: 500;
    text-align: center;
}

.dark-theme .qr-code {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.dark-theme .qr-code:hover {
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.3);
}

.dark-theme .qr-text {
    color: #f5f5f5;
}

/* 夜间模式联系方式侧边栏 */
.dark-theme .contact-card {
    background: #101218;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 
        0 8px 24px rgba(0, 0, 0, 0.3),
        0 2px 8px rgba(0, 0, 0, 0.2);
}

.dark-theme .contact-card:hover {
    box-shadow: 
        0 12px 32px rgba(0, 0, 0, 0.4),
        0 4px 12px rgba(0, 0, 0, 0.3);
}

.dark-theme .contact-header {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.dark-theme .contact-name {
    color: #f5f5f5;
}

.dark-theme .contact-desc {
    color: rgba(220, 220, 225, 0.65);
}

.dark-theme .contact-item {
    background: rgba(255, 255, 255, 0.05);
}

.dark-theme .contact-item:hover {
    background: rgba(255, 255, 255, 0.1);
}

.dark-theme .contact-icon {
    background: rgba(200, 16, 46, 0.15);
    color: #c8102e;
}

.dark-theme .contact-label {
    color: rgba(220, 220, 225, 0.65);
}

.dark-theme .contact-value {
    color: #f5f5f5;
}

.dark-theme .contact-qr {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.dark-theme .qr-placeholder {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.06));
    color: rgba(220, 220, 225, 0.65);
}

/* 模态框 */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2000;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    border-radius: 15px;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.15);
    transform: translateY(10px) scale(0.98);
    opacity: 0;
    transition: var(--transition);
}

.dark-theme .modal-content {
    background: var(--light-gray);
}

/* 夜间模式的精选工具卡片样式 */
.dark-theme .tool-card--media {
    background: #101218;
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.1),
        0 1px 3px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.dark-theme .tool-card--media:hover {
    box-shadow:
        0 10px 15px rgba(0, 0, 0, 0.1),
        0 4px 6px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.dark-theme .tool-card--media .tool-icon-bubble {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(120, 125, 135, 0.3);
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.3);
}

.dark-theme .tool-card--media .tool-icon-bubble i {
    color: #f5f5f5;
}

.dark-theme .tool-card--media .tool-title {
    color: #f5f5f5;
}

.dark-theme .tool-card--media .tool-description {
    color: rgba(220, 220, 225, 0.65);
}

.dark-theme .tool-open-btn--secondary {
    background: rgba(200, 16, 46, 0.1);
    color: #c8102e;
    border: 1px solid rgba(200, 16, 46, 0.2);
}

.dark-theme .tool-open-btn--secondary:hover {
    background: rgba(200, 16, 46, 0.15);
    color: #c8102e;
}

/* 夜间模式的工具过滤器样式 */
.dark-theme .tool-filter-btn {
    background: rgba(15, 16, 20, 0.9);
    color: #f5f5f5;
    border: 1px solid var(--border-subtle);
}

.dark-theme .tool-filter-btn:hover {
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.6);
}

.dark-theme .tool-filter-btn.active {
    border-color: rgba(200, 16, 46, 0.4);
    background: rgba(200, 16, 46, 0.14);
    color: #ffdde1;
}

/* 夜间模式的工具卡片样式 */
.dark-theme .tool-card {
    background: #101218;
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.1),
        0 1px 3px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.dark-theme .tool-card:hover {
    box-shadow:
        0 10px 15px rgba(0, 0, 0, 0.1),
        0 4px 6px rgba(0, 0, 0, 0.05),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.dark-theme .tool-card::before {
    background: radial-gradient(circle at 0 0, rgba(200, 16, 46, 0.12), transparent 55%);
}

.dark-theme .tool-card--media::before {
    background: radial-gradient(circle at 0 0, rgba(200, 16, 46, 0.18), transparent 55%);
}

.dark-theme .tool-icon {
    color: #f5f5f5;
}

.dark-theme .tool-title {
    color: #f5f5f5;
}

.dark-theme .tool-description {
    color: rgba(220, 220, 225, 0.65);
}

.dark-theme .tool-open-btn {
    background: #c8102e;
    color: white;
}

.dark-theme .tool-open-btn:hover {
    background: #a30d25;
    color: white;
}

/* 夜间模式的占位卡样式 */
.dark-theme .tool-card--placeholder {
    border: 2px dashed rgba(120, 125, 135, 0.4);
    background: rgba(15, 16, 20, 0.8);
    box-shadow:
        0 4px 6px rgba(0, 0, 0, 0.1),
        0 1px 3px rgba(0, 0, 0, 0.08),
        inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.dark-theme .tool-placeholder-icon {
    background: rgba(200, 16, 46, 0.1);
    color: #c8102e;
}

.dark-theme .tool-placeholder-title {
    color: #f5f5f5;
}

.dark-theme .tool-placeholder-desc {
    color: rgba(220, 220, 225, 0.65);
}

.modal.show .modal-content {
    transform: translateY(0) scale(1);
    opacity: 1;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--light-gray);
}

.modal-close {
    background: none;
    border: none;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray-color);
}

.modal-body {
    padding: 2rem;
}

/* 工具内容样式 */
.tool-content {
    max-width: 600px;
    margin: 0 auto;
}

.tool-tips {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 8px;
    font-size: 0.9rem;
    color: var(--gray-color);
}

.input-group {
    margin-bottom: 1.5rem;
}

.input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.input-group input,
.input-group textarea,
.input-group select {
    width: 100%;
    padding: 0.8rem;
    border: 2px solid var(--light-gray);
    border-radius: 8px;
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
}

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

.result-box {
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: 8px;
    margin-top: 2rem;
    display: none;
}

.result-box.show {
    display: block;
}

/* 计算器 */
.calculator-display {
    background: var(--light-gray);
    padding: 1.5rem;
    border-radius: 12px;
    margin-bottom: 1rem;
    text-align: right;
    min-height: 80px;
}

.calculator-expression {
    font-size: 0.9rem;
    color: var(--gray-color);
    min-height: 24px;
}

.calculator-result {
    font-size: 2rem;
    font-weight: 600;
}

.calculator-buttons {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
}

.calc-btn {
    padding: 1rem;
    border: none;
    border-radius: 10px;
    background: var(--light-gray);
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
}

.calc-btn.action {
    background: rgba(67, 97, 238, 0.08);
    color: var(--primary-color);
}

.calc-btn.equal {
    background: var(--primary-color);
    color: #fff;
}

.calc-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.15);
}

.tool-features {
    margin-top: 2rem;
}

/* 配色生成器 */
.color-palette {
    margin-top: 2rem;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 10px;
}

.color-swatch {
    height: 100px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: monospace;
}

/* 时间管理 */
.task-row {
    padding: 1rem;
    background: white;
    border-radius: 10px;
    margin-bottom: 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 6px 18px rgba(15, 23, 42, 0.06);
}

.time-summary {
    margin-top: 2rem;
    padding: 1rem;
    background: var(--light-gray);
    border-radius: 10px;
}

/* 博客区域 */
.blog-section {
    padding: 6rem 2rem;
    background: var(--light-color);
    margin: 4rem auto;
    max-width: 1280px;
    border-radius: 24px;
    box-shadow: 
        0 12px 32px rgba(0, 0, 0, 0.12),
        0 4px 16px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.1);
    position: relative;
    backdrop-filter: blur(10px);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.blog-card {
    background: #ffffff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 
        0 8px 24px rgba(0, 0, 0, 0.12),
        0 2px 8px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.2);
    position: relative;
    backdrop-filter: blur(10px);
}

.blog-card-link {
    text-decoration: none;
    display: block;
    color: inherit;
}

.blog-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 16px 32px rgba(0, 0, 0, 0.16),
        0 4px 12px rgba(0, 0, 0, 0.12);
}

.blog-image {
    height: 220px;
    position: relative;
    overflow: hidden;
}

.blog-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.blog-card:hover .blog-img {
    transform: scale(1.1);
}

.blog-image-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.1) 0%,
        rgba(0, 0, 0, 0.3) 50%,
        rgba(0, 0, 0, 0.6) 100%
    );
    transition: background 0.3s ease;
}

.blog-card:hover .blog-image-overlay {
    background: linear-gradient(
        180deg,
        rgba(200, 16, 46, 0.15) 0%,
        rgba(200, 16, 46, 0.35) 50%,
        rgba(200, 16, 46, 0.7) 100%
    );
}

.blog-image-icon {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    transition: all 0.4s ease;
}

.blog-image-icon i {
    font-size: 2.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.blog-card:hover .blog-image-icon {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: 0 12px 40px rgba(200, 16, 46, 0.3);
}

.blog-tag {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 0.4rem 1rem;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary-color);
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 999px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
}

.blog-card:hover .blog-tag {
    background: var(--primary-color);
    color: white;
}

.blog-original {
    position: absolute;
    top: 16px;
    right: 16px;
    padding: 0.3rem 0.75rem;
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    color: white;
    font-size: 0.7rem;
    font-weight: 600;
    border-radius: 4px;
    box-shadow: 0 2px 8px rgba(238, 90, 36, 0.3);
    z-index: 2;
}

.blog-content {
    padding: 2rem;
}

.blog-content h3 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.blog-content p {
    color: var(--gray-color);
    margin-bottom: 1rem;
}

.blog-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
    display: inline-block;
    margin-top: 1rem;
    transition: var(--transition);
}

.blog-link:hover {
    color: #1a1a1a;
    transform: translateX(4px);
}

/* 夜间模式的博客区域样式 */
.dark-theme .blog-section {
    background: 
        radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.04), transparent 55%),
        radial-gradient(circle at 100% 0%, rgba(200, 16, 46, 0.10), transparent 55%),
        linear-gradient(160deg, #050608 0%, #111318 45%, #050608 100%);
    margin: 4rem auto;
    max-width: 1280px;
    border-radius: 24px;
    box-shadow: 
        0 12px 32px rgba(0, 0, 0, 0.3),
        0 4px 16px rgba(0, 0, 0, 0.2);
    border: 1px solid #000000;
    backdrop-filter: blur(10px);
}

.dark-theme .blog-card {
    background: #101218;
    border-radius: 18px;
    box-shadow: 
        0 8px 24px rgba(0, 0, 0, 0.3),
        0 2px 8px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
}

.dark-theme .blog-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: 
        0 16px 32px rgba(0, 0, 0, 0.4),
        0 4px 12px rgba(0, 0, 0, 0.3);
}

.dark-theme .blog-image {
    position: relative;
}

.dark-theme .blog-image-overlay {
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0.2) 0%,
        rgba(0, 0, 0, 0.4) 50%,
        rgba(0, 0, 0, 0.7) 100%
    );
}

.dark-theme .blog-card:hover .blog-image-overlay {
    background: linear-gradient(
        180deg,
        rgba(200, 16, 46, 0.2) 0%,
        rgba(200, 16, 46, 0.4) 50%,
        rgba(200, 16, 46, 0.75) 100%
    );
}

.dark-theme .blog-image-icon {
    background: rgba(30, 33, 37, 0.95);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.dark-theme .blog-image-icon i {
    background: linear-gradient(135deg, #c8102e, #e61c3a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.dark-theme .blog-card:hover .blog-image-icon {
    box-shadow: 0 12px 40px rgba(200, 16, 46, 0.4);
}

.dark-theme .blog-tag {
    background: rgba(30, 33, 37, 0.95);
    color: #c8102e;
}

.dark-theme .blog-card:hover .blog-tag {
    background: #c8102e;
    color: white;
}

.dark-theme .blog-original {
    background: linear-gradient(135deg, #ff6b6b, #ee5a24);
    box-shadow: 0 2px 8px rgba(238, 90, 36, 0.4);
}

.dark-theme .blog-content h3 {
    color: #f5f5f5;
}

.dark-theme .blog-content p {
    color: rgba(220, 220, 225, 0.65);
}

.dark-theme .blog-link {
    color: #c8102e;
}

.dark-theme .blog-link:hover {
    color: #e61c3a;
}

/* 关于区域 */
.about-section {
    padding: 6rem 2rem;
    background: transparent;
    margin: 4rem auto;
    max-width: 1280px;
    position: relative;
}

.about-section .section-title {
    text-align: center;
    margin-bottom: 2.5rem;
    position: relative;
    display: inline-block;
    width: 100%;
}

.about-section .section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: var(--primary-color);
    border-radius: 2px;
}

.dark-theme .about-section .section-title::after {
    background: #c8102e;
}

.about-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.about-content p {
    font-size: 1.1rem;
    line-height: 2;
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    position: relative;
    padding: 0 1rem;
}

.about-content p:first-child {
    font-size: 1.15rem;
    font-weight: 500;
}

.about-content p:last-child {
    margin-bottom: 0;
    font-style: italic;
    color: var(--gray-color);
    font-size: 1.05rem;
}

.dark-theme .about-content p {
    color: #e5e5e5;
}

.dark-theme .about-content p:last-child {
    color: rgba(220, 220, 225, 0.75);
}

/* 页脚 */
.footer {
    background: var(--light-color);
    color: var(--dark-color);
    padding: 4rem 0 2rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    padding: 0 20px;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--dark-color);
}

.footer-section a {
    color: var(--gray-color);
    text-decoration: none;
    display: block;
    margin-bottom: 0.5rem;
    transition: var(--transition);
}

.footer-section a:hover {
    color: var(--dark-color);
    transform: translateX(4px);
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-links a {
    font-size: 1.2rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 999px;
    background: rgba(108, 117, 125, 0.1);
    transition: var(--transition);
}

.social-links a:hover {
    background: rgba(108, 117, 125, 0.2);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(108, 117, 125, 0.2);
    color: var(--gray-color);
}

/* 夜间模式的页脚样式 */
.dark-theme .footer {
    background: 
        radial-gradient(circle at 0% 0%, rgba(255, 255, 255, 0.04), transparent 55%),
        radial-gradient(circle at 100% 0%, rgba(200, 16, 46, 0.10), transparent 55%),
        linear-gradient(160deg, #050608 0%, #111318 45%, #050608 100%);
    color: white;
}

.dark-theme .footer-section h3,
.dark-theme .footer-section h4 {
    color: #f5f5f5;
}

.dark-theme .footer-section a {
    color: rgba(245, 245, 245, 0.65);
}

.dark-theme .footer-section a:hover {
    color: #f5f5f5;
}

.dark-theme .social-links a {
    background: rgba(245, 245, 245, 0.1);
}

.dark-theme .social-links a:hover {
    background: rgba(200, 16, 46, 0.2);
}

.dark-theme .footer-bottom {
    border-top: 1px solid rgba(120, 125, 135, 0.2);
    color: rgba(245, 245, 245, 0.65);
}

/* 响应式设计 */
@media (max-width: 768px) {
    .section-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .section-head .section-title,
    .section-head .section-subtitle {
        text-align: left;
    }

    .logo-main {
        font-size: 1.2rem;
    }

    .logo-sub {
        font-size: 0.75rem;
    }

    .logo i {
        font-size: 1.5rem;
    }

    .logo-img {
        width: 38px;
        height: 38px;
    }

    .nav-container {
        padding-inline: 1.25rem;
    }

    .nav-menu {
        position: absolute;
        top: 64px;
        right: 16px;
        left: 16px;
        background: rgba(255, 255, 255, 0.97);
        border-radius: 16px;
        padding: 1rem 1.25rem 1.25rem;
        box-shadow: 0 18px 50px rgba(15, 23, 42, 0.2);
        display: none;
        flex-direction: column;
        gap: 0.75rem;
    }

    .dark-theme .nav-menu {
        background: rgba(18, 18, 18, 0.97);
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-actions {
        display: flex;
    }

    .hero-section {
        grid-template-columns: 1fr;
        text-align: center;
        padding-top: 6rem;
    }
    
    .hero-title {
        font-size: 2.5rem;
    }
    
    .nav-menu {
        display: none;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }

    .tools-wrapper {
        flex-direction: column;
    }

    .contact-sidebar {
        width: 100%;
        position: static;
        margin-top: 2rem;
    }

    .contact-list {
        display: grid;
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .about-section {
        padding: 4rem 1.5rem;
        margin: 2rem auto;
    }

    .about-content p {
        font-size: 1rem;
        line-height: 1.8;
    }

    .about-content p:first-child {
        font-size: 1.05rem;
    }
}

@media (max-width: 1024px) {
    .contact-sidebar {
        width: 240px;
    }
}