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

:root {
    --bg-dark: #0a0a0a;
    --bg-darker: #050505;
    --text-white: #ffffff;
    --text-light: #e0e0e0;
    --orange: #FF6B35;
    --red: #F72C25;
    --blue: #4A90E2;
    --gradient-orange-red: linear-gradient(135deg, #FF6B35 0%, #F72C25 100%);
    --gradient-blue: linear-gradient(135deg, #4A90E2 0%, #357ABD 100%);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-white);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-image {
    height: 40px;
    width: auto;
    display: block;
}

.logo svg {
    display: block;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 40px;
    align-items: center;
}

.nav-menu a {
    color: var(--text-white);
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--orange);
}

.btn-primary {
    background: var(--gradient-blue);
    color: var(--text-white);
    border: none;
    padding: 12px 30px;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(74, 144, 226, 0.4);
}

/* Hero Section */
.hero {
    background: linear-gradient(120deg,
        #c03030 0%,
        #ff6b35 20%,
        #ff8c00 45%,
        #ffa500 70%,
        #e85d2e 100%
    );
    position: relative;
    padding: 100px 0;
    min-height: 70vh;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg,
        #c03030 0%,
        #ff6b35 20%,
        #ff8c00 45%,
        #ffa500 70%,
        #e85d2e 100%
    );
    /* 竖向压纹条纹（关键） */
    mask-image: repeating-linear-gradient(
        90deg,
        rgba(0,0,0,0.2) 0px,
        rgba(0,0,0,0.2) 20px,
        rgba(0,0,0,0.35) 20px,
        rgba(0,0,0,0.35) 40px
    );
    -webkit-mask-image: repeating-linear-gradient(
        90deg,
        rgba(0,0,0,0.2) 0px,
        rgba(0,0,0,0.2) 20px,
        rgba(0,0,0,0.35) 20px,
        rgba(0,0,0,0.35) 40px
    );
    /* 模糊柔化效果 */
    filter: blur(2px);
    /* 轻微透明增加"玻璃"质感 */
    opacity: 0.95;
    pointer-events: none;
    z-index: 0;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        rgba(255,255,255,0.07) 0%,
        rgba(255,255,255,0) 50%,
        rgba(255,255,255,0.07) 100%
    );
    mix-blend-mode: overlay;
    pointer-events: none;
    z-index: 1;
}

.hero-content {
    max-width: 900px;
    position: relative;
    z-index: 2;
}

.section-number {
    font-size: 120px;
    font-weight: 900;
    color: rgba(255, 255, 255, 0.1);
    position: absolute;
    top: -60px;
    left: -20px;
    line-height: 1;
    z-index: 0;
}

.hero-title {
    font-size: 56px;
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 30px;
    position: relative;
    z-index: 1;
}

.hero-subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 40px;
    max-width: 600px;
    position: relative;
    z-index: 1;
}

.btn-hero {
    background: var(--red);
    color: var(--text-white);
    border: none;
    padding: 18px 40px;
    border-radius: 5px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
}

.btn-hero:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(247, 44, 37, 0.5);
}

/* Problems Section */
.problems {
    padding: 120px 0;
    background-color: var(--bg-dark);
}

.problems-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    margin-bottom: 80px;
    align-items: start;
}

.section-title {
    font-size: 48px;
    font-weight: 900;
    margin-bottom: 0;
    position: relative;
    text-align: left;
}

.problems-list {
    list-style: none;
    font-size: 20px;
    line-height: 2;
    margin: 0;
    padding: 0;
    margin-top: 120px;
}

.problems-list li {
    margin-bottom: 20px;
    color: rgba(255, 255, 255, 0.7);
    text-align: left;
}

.problems-cta {
    display: flex;
    flex-direction: column;
    margin-top: 60px;
}

.cta-text-top {
    font-size: 32px;
    font-weight: 600;
    color: var(--text-white);
    text-align: left;
    margin: 0 0 40px 0;
    width: 100%;
}

.cta-text-bottom {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    margin-left: 200px;
    text-align: right;
}

.cta-text-bottom p {
    font-size: 32px;
    font-weight: 600;
    color: var(--text-white);
    margin: 0;
    line-height: 1.2;
}

.cta-text-bottom p:first-child {
    margin-bottom: 10px;
}

.cta-text-highlight {
    color: var(--orange) !important;
}

.cta-text {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-white);
    max-width: 1000px;
    line-height: 1.4;
}

/* Services Overview */
.services-overview {
    padding: 120px 0;
    background-color: var(--bg-darker);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 60px;
}

.service-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 10px;
    transition: transform 0.3s, border-color 0.3s;
    position: relative;
    overflow: hidden;
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: var(--orange);
}

.service-card h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 20px;
    color: var(--text-white);
    position: relative;
    z-index: 1;
}

.service-card p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.6;
    position: relative;
    z-index: 1;
}

/* 前5个卡片添加径向渐变光晕效果 - 从四个角之一开始 */
.service-card:nth-child(1) {
    background: rgba(15, 15, 15, 0.95);
}

.service-card:nth-child(1)::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        circle at top left,
        rgba(255, 180, 80, 0.3) 0%,
        rgba(200, 100, 50, 0.2) 40%,
        rgba(120, 60, 30, 0.1) 70%,
        transparent 100%
    );
    pointer-events: none;
    z-index: 0;
    border-radius: 10px;
}

.service-card:nth-child(2) {
    background: rgba(15, 15, 15, 0.95);
}

.service-card:nth-child(2)::before {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        circle at top right,
        rgba(180, 70, 40, 0.3) 0%,
        rgba(140, 50, 30, 0.2) 40%,
        rgba(100, 35, 20, 0.1) 70%,
        transparent 100%
    );
    pointer-events: none;
    z-index: 0;
    border-radius: 10px;
}

.service-card:nth-child(3) {
    background: rgba(15, 15, 15, 0.95);
}

.service-card:nth-child(3)::before {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        circle at bottom left,
        rgba(255, 180, 80, 0.3) 0%,
        rgba(200, 100, 50, 0.2) 40%,
        rgba(120, 60, 30, 0.1) 70%,
        transparent 100%
    );
    pointer-events: none;
    z-index: 0;
    border-radius: 10px;
}

.service-card:nth-child(4) {
    background: rgba(15, 15, 15, 0.95);
}

.service-card:nth-child(4)::before {
    content: "";
    position: absolute;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        circle at bottom right,
        rgba(180, 70, 40, 0.3) 0%,
        rgba(140, 50, 30, 0.2) 40%,
        rgba(100, 35, 20, 0.1) 70%,
        transparent 100%
    );
    pointer-events: none;
    z-index: 0;
    border-radius: 10px;
}

.service-card:nth-child(5) {
    background: rgba(15, 15, 15, 0.95);
}

.service-card:nth-child(5)::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(
        circle at top left,
        rgba(255, 180, 80, 0.3) 0%,
        rgba(200, 100, 50, 0.2) 40%,
        rgba(120, 60, 30, 0.1) 70%,
        transparent 100%
    );
    pointer-events: none;
    z-index: 0;
    border-radius: 10px;
}

.cta-card {
    background: var(--gradient-orange-red);
    border: none;
}

.cta-card h3 {
    font-size: 28px;
    margin-bottom: 30px;
}

.btn-secondary {
    background: var(--text-white);
    color: var(--red);
    border: none;
    padding: 15px 35px;
    border-radius: 5px;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 0.3s;
    display: inline-block;
    text-decoration: none;
}

.btn-secondary:hover {
    transform: translateY(-2px);
}

/* Process Section */
.process {
    padding: 120px 0;
    background-color: var(--bg-dark);
}

.process-steps {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 60px;
    flex-wrap: wrap;
}

.step {
    flex: 1;
    min-width: 180px;
    text-align: center;
}

.step-number {
    font-size: 48px;
    font-weight: 900;
    color: var(--orange);
    margin-bottom: 20px;
}

.step h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.step p {
    font-size: 14px;
    color: var(--text-light);
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    background: linear-gradient(120deg,
        #c03030 0%,
        #ff6b35 20%,
        #ff8c00 45%,
        #ffa500 70%,
        #e85d2e 100%
    );
    position: relative;
    overflow: hidden;
}

.cta-section::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg,
        #c03030 0%,
        #ff6b35 20%,
        #ff8c00 45%,
        #ffa500 70%,
        #e85d2e 100%
    );
    /* 竖向压纹条纹（关键） */
    mask-image: repeating-linear-gradient(
        90deg,
        rgba(0,0,0,0.2) 0px,
        rgba(0,0,0,0.2) 20px,
        rgba(0,0,0,0.35) 20px,
        rgba(0,0,0,0.35) 40px
    );
    -webkit-mask-image: repeating-linear-gradient(
        90deg,
        rgba(0,0,0,0.2) 0px,
        rgba(0,0,0,0.2) 20px,
        rgba(0,0,0,0.35) 20px,
        rgba(0,0,0,0.35) 40px
    );
    /* 模糊柔化效果 */
    filter: blur(2px);
    /* 轻微透明增加"玻璃"质感 */
    opacity: 0.95;
    pointer-events: none;
    z-index: 0;
}

.cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        rgba(255,255,255,0.07) 0%,
        rgba(255,255,255,0) 50%,
        rgba(255,255,255,0.07) 100%
    );
    mix-blend-mode: overlay;
    pointer-events: none;
    z-index: 1;
}

.cta-section .container {
    position: relative;
    z-index: 2;
}

.cta-subtitle {
    font-size: 20px;
    color: var(--text-light);
    margin-bottom: 50px;
    text-align: center;
}

.contact-form {
    max-width: 600px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-form input,
.contact-form textarea {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.3);
    padding: 18px;
    border-radius: 5px;
    color: var(--text-white);
    font-size: 16px;
    font-family: inherit;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
    color: rgba(255, 255, 255, 0.6);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--text-white);
    background: rgba(255, 255, 255, 0.15);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-light);
    font-size: 14px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    flex-shrink: 0;
}

.checkbox-label a {
    color: var(--orange);
    text-decoration: underline;
    transition: color 0.3s;
}

.checkbox-label a:hover {
    color: var(--red);
}

/* Page Hero */
.page-hero {
    background: linear-gradient(120deg,
        #c03030 0%,
        #ff6b35 20%,
        #ff8c00 45%,
        #ffa500 70%,
        #e85d2e 100%
    );
    position: relative;
    padding: 100px 0;
    text-align: center;
    overflow: hidden;
}

.page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg,
        #c03030 0%,
        #ff6b35 20%,
        #ff8c00 45%,
        #ffa500 70%,
        #e85d2e 100%
    );
    /* 竖向压纹条纹（关键） */
    mask-image: repeating-linear-gradient(
        90deg,
        rgba(0,0,0,0.2) 0px,
        rgba(0,0,0,0.2) 20px,
        rgba(0,0,0,0.35) 20px,
        rgba(0,0,0,0.35) 40px
    );
    -webkit-mask-image: repeating-linear-gradient(
        90deg,
        rgba(0,0,0,0.2) 0px,
        rgba(0,0,0,0.2) 20px,
        rgba(0,0,0,0.35) 20px,
        rgba(0,0,0,0.35) 40px
    );
    /* 模糊柔化效果 */
    filter: blur(2px);
    /* 轻微透明增加"玻璃"质感 */
    opacity: 0.95;
    pointer-events: none;
    z-index: 0;
}

.page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        rgba(255,255,255,0.07) 0%,
        rgba(255,255,255,0) 50%,
        rgba(255,255,255,0.07) 100%
    );
    mix-blend-mode: overlay;
    pointer-events: none;
    z-index: 1;
}

.page-hero .container {
    position: relative;
    z-index: 2;
}

.page-title {
    font-size: 64px;
    font-weight: 900;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.page-subtitle {
    font-size: 24px;
    color: var(--text-light);
    position: relative;
    z-index: 1;
}

/* Services Detail */
.services-detail {
    padding: 120px 0;
    background-color: var(--bg-dark);
}

.service-detail-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 60px;
    border-radius: 10px;
    margin-bottom: 40px;
}

.service-icon {
    font-size: 48px;
    font-weight: 900;
    color: var(--orange);
    margin-bottom: 30px;
}

.service-detail-card h2 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 25px;
}

.service-detail-card > p {
    font-size: 18px;
    color: var(--text-light);
    margin-bottom: 30px;
    line-height: 1.8;
}

.service-features {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
}

.service-features li {
    font-size: 16px;
    color: var(--text-light);
    padding-left: 20px;
    position: relative;
}

.service-features li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--orange);
}

/* Privacy Policy Content */
.privacy-content {
    padding: 120px 0;
    background-color: var(--bg-dark);
}

.privacy-section {
    margin-bottom: 60px;
    max-width: 900px;
}

.privacy-section h2 {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-white);
    margin-bottom: 20px;
}

.privacy-section h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--orange);
    margin-top: 30px;
    margin-bottom: 15px;
}

.privacy-section p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 15px;
}

.privacy-section ul {
    list-style: none;
    margin: 20px 0;
    padding-left: 0;
}

.privacy-section ul li {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
    padding-left: 25px;
    position: relative;
    margin-bottom: 10px;
}

.privacy-section ul li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--orange);
    font-size: 20px;
}

.privacy-section a {
    color: var(--orange);
    text-decoration: underline;
    transition: color 0.3s;
}

.privacy-section a:hover {
    color: var(--red);
}

/* About Content */
.about-content {
    padding: 120px 0;
    background-color: var(--bg-dark);
}

.about-section {
    margin-bottom: 80px;
}

.about-text {
    font-size: 20px;
    color: var(--text-light);
    line-height: 1.8;
    max-width: 900px;
}

.expertise-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    margin-top: 40px;
}

.expertise-item {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 10px;
}

.expertise-item h3 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 15px;
    color: var(--orange);
}

.expertise-item p {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.6;
}

.why-list {
    list-style: none;
    font-size: 24px;
    line-height: 2;
    margin-top: 40px;
}

.why-list li {
    margin-bottom: 20px;
    color: var(--text-light);
}

/* Contact Section */
.contact-section {
    padding: 120px 0;
    background: linear-gradient(120deg,
        #c03030 0%,
        #ff6b35 20%,
        #ff8c00 45%,
        #ffa500 70%,
        #e85d2e 100%
    );
    position: relative;
    overflow: hidden;
}

.contact-section::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg,
        #c03030 0%,
        #ff6b35 20%,
        #ff8c00 45%,
        #ffa500 70%,
        #e85d2e 100%
    );
    /* 竖向压纹条纹（关键） */
    mask-image: repeating-linear-gradient(
        90deg,
        rgba(0,0,0,0.2) 0px,
        rgba(0,0,0,0.2) 20px,
        rgba(0,0,0,0.35) 20px,
        rgba(0,0,0,0.35) 40px
    );
    -webkit-mask-image: repeating-linear-gradient(
        90deg,
        rgba(0,0,0,0.2) 0px,
        rgba(0,0,0,0.2) 20px,
        rgba(0,0,0,0.35) 20px,
        rgba(0,0,0,0.35) 40px
    );
    /* 模糊柔化效果 */
    filter: blur(2px);
    /* 轻微透明增加"玻璃"质感 */
    opacity: 0.95;
    pointer-events: none;
    z-index: 0;
}

.contact-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(
        90deg,
        rgba(255,255,255,0.07) 0%,
        rgba(255,255,255,0) 50%,
        rgba(255,255,255,0.07) 100%
    );
    mix-blend-mode: overlay;
    pointer-events: none;
    z-index: 1;
}

.contact-section .container {
    position: relative;
    z-index: 2;
}

/* Footer */
.footer {
    background-color: var(--bg-darker);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 60px 0 30px;
}

.footer-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 40px;
}

.footer-menu {
    display: flex;
    list-style: none;
    gap: 40px;
}

.footer-menu a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 16px;
    transition: color 0.3s;
}

.footer-menu a:hover {
    color: var(--orange);
}

.footer-contact {
    text-align: center;
    margin-bottom: 20px;
}

.footer-email {
    color: var(--text-light);
    font-size: 16px;
}

.footer-email a {
    color: var(--orange);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-email a:hover {
    color: var(--red);
}

.footer-text {
    text-align: center;
    color: var(--text-light);
    font-size: 14px;
    opacity: 0.6;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .process-steps {
        justify-content: center;
    }
    
    .step {
        min-width: 150px;
    }
}

@media (max-width: 768px) {
    .nav {
        padding: 15px 20px;
        flex-wrap: wrap;
    }
    
    .nav-menu {
        gap: 20px;
        order: 3;
        width: 100%;
        margin-top: 15px;
    }
    
    .hero-title {
        font-size: 36px;
    }
    
    .section-title {
        font-size: 36px;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        flex-direction: column;
        align-items: center;
    }
    
    .page-title {
        font-size: 42px;
    }
    
    .expertise-grid {
        grid-template-columns: 1fr;
    }
    
    .service-features {
        grid-template-columns: 1fr;
    }
    
    .section-number {
        font-size: 80px;
        top: -40px;
    }
    
    .problems-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .problems-cta {
        flex-direction: column;
    }
    
    .cta-text-top {
        font-size: 20px;
        margin-bottom: 30px;
    }
    
    .cta-text-bottom {
        align-items: flex-start;
        text-align: left;
        margin-left: 0;
    }
    
    .cta-text-bottom p {
        font-size: 24px;
    }
}