:root {
    --primary: #F59E0B;
    --primary-light: #fff7e8;
    --primary-deep: #e67700;
    --text-main: #1d2129;
    --text-secondary: #4e5969;
    --text-weak: #86909c;
    --bg-page: #f7f8fa;
    --bg-card: #ffffff;
    --border-light: #e5e6eb;
    --shadow-soft: 0 1px 3px rgba(0, 0, 0, 0.06);
    --shadow-hover: 0 8px 24px rgba(245, 158, 11, 0.12);
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --transition-all: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
html {
    scroll-behavior: smooth;
}

.fade-in-block {
    opacity: 1;
    transform: translateY(0);
    transition: var(--transition-all);
}
.fade-in-block.scroll-animate {
    opacity: 0;
    transform: translateY(30px);
}
.fade-in-block.scroll-animate.active {
    opacity: 1;
    transform: translateY(0);
}

.platform-wrap {
    padding: 96px 0;
    background: var(--bg-page);
    min-height: calc(100vh - 70px - 280px);
}
.platform-container {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 32px;
}

.platform-sidebar {
    background: var(--bg-card);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
    overflow: hidden;
    height: fit-content;
    position: sticky;
    top: 100px;
    border: 1px solid var(--border-light);
}
.sidebar-title {
    padding: 20px 24px;
    background: linear-gradient(135deg, var(--primary), var(--primary-deep));
    color: #fff;
    font-weight: 600;
    font-size: 16px;
    letter-spacing: 0.5px;
}
.sidebar-menu {
    list-style: none;
    margin: 0;
    padding: 12px 0;
}
.sidebar-menu li a {
    display: block;
    padding: 14px 24px;
    font-size: 14px;
    color: var(--text-secondary);
    transition: var(--transition-all);
    text-decoration: none;
    margin: 0 8px;
    border-radius: var(--radius-sm);
}
.sidebar-menu li a.active {
    background: var(--primary-light);
    color: var(--primary-deep);
    font-weight: 500;
}
.sidebar-menu li a:hover:not(.active) {
    background: #f2f3f5;
    color: var(--text-main);
}

.platform-main {
    display: flex;
    flex-direction: column;
    gap: 48px;
}

.anchor-section {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: 48px 40px;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-light);
    scroll-margin-top: 110px;
    position: relative;
    overflow: hidden;
}

.anchor-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), transparent);
    opacity: 0.6;
}
.anchor-section h3 {
    font-size: 24px;
    color: var(--text-main);
    margin-top: 0;
    margin-bottom: 32px;
    display: flex;
    align-items: center;
    gap: 12px;
}
.anchor-section h3::before {
    content: "";
    width: 4px;
    height: 24px;
    background: linear-gradient(180deg, var(--primary), var(--primary-deep));
    border-radius: 2px;
}
.anchor-section p {
    line-height: 1.9;
    color: var(--text-secondary);
    font-size: 15px;
}

.policy-video-box {
    width: 100%;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    border: 1px solid var(--border-light);
}
.video-inner {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    background: linear-gradient(135deg, #101828, #1d2939);
}
.policy-video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 1;
}
.video-play-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 48px;
    background: linear-gradient(transparent, rgba(0,0,0,0.6));
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 16px;
    z-index: 99;
    box-sizing: border-box;
    color: #fff;
}
.video-play-bar > span {
    cursor: pointer;
    user-select: none;
    font-size: 18px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(255,255,255,0.1);
    transition: var(--transition-all);
}
.video-play-bar > span:hover {
    background: rgba(255,255,255,0.25);
}
.play-progress {
    flex: 1;
    height: 5px;
    background: rgba(255,255,255,0.15);
    border-radius: 99px;
    position: relative;
    cursor: pointer;
}
.progress-fill {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    background: var(--primary);
    border-radius: 99px;
}
.progress-dot {
    position: absolute;
    top: 50%;
    width: 12px;
    height: 12px;
    background: #fff;
    border-radius: 50%;
    transform: translate(-50%, -50%);
    box-shadow: 0 0 6px rgba(245, 158, 11, 0.6);
}

.func-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-main);
    margin: 0 0 24px;
}
.func-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 48px;
}
.func-grid.one-col {
    grid-template-columns: 1fr;
    gap: 40px;
}
.func-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 32px 20px;
    text-align: center;
    transition: var(--transition-all);
    cursor: default;
}
.func-item.padding-lg {
    padding: 36px;
}
.func-item:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(245, 158, 11, 0.3);
}
.func-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 24px;
}
.func-name {
    font-size: 16px;
    color: var(--text-main);
    font-weight: 500;
}
.img-two-col {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin-top:20px;
}
.img-full-round {
    width:100%;
    border-radius:var(--radius-sm);
}

.pet-id-card-box {
    margin-top: 40px;
    padding: 40px;
    background: linear-gradient(135deg, #fffbf0, #ffffff);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(245, 158, 11, 0.2);
    text-align: center;
    position: relative;
}
.pet-id-card-box::after {
    content: "";
    position: absolute;
    right: -80px;
    top: -80px;
    width: 160px;
    height: 160px;
    background: radial-gradient(circle, rgba(245,158,11,0.08) 0, transparent 70%);
    z-index: 0;
}
.pet-id-desc {
    font-size: 20px;
    color: var(--text-main);
    margin-bottom: 24px;
    font-weight: 600;
    position: relative;
    z-index: 1;
}
.pet-id-desc span {
    color: var(--primary-deep);
}
.pet-id-img {
    width: 85%;
    max-width: 760px;
    border-radius: var(--radius-md);
    box-shadow: 0 12px 32px rgba(245, 158, 11, 0.16);
    transition: var(--transition-all);
    position: relative;
    z-index: 1;
}
.pet-id-img:hover {
    transform: scale(1.02);
    box-shadow: 0 16px 40px rgba(245, 158, 11, 0.2);
}
.pet-id-card-box p:last-child {
    margin-top: 16px;
    font-size: 14px;
    color: var(--text-weak);
    position: relative;
    z-index: 1;
}

.city-case-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 32px;
}
.city-case-card {
    border-radius: var(--radius-md);
    overflow: hidden;
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    transition: var(--transition-all);
}
.city-case-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: rgba(245, 158, 11, 0.25);
}
.city-case-img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
    transition: var(--transition-all);
}
.city-case-card:hover .city-case-img {
    transform: scale(1.06);
}
.city-case-name {
    text-align: center;
    padding: 14px;
    font-size: 15px;
    color: var(--text-main);
    font-weight: 500;
    background: #fff;
}

.contact-form-desc {
    font-size: 16px;
    color: var(--text-secondary);
    margin-bottom: 36px;
}
.form-row-two {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-bottom: 28px;
}
.form-item {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.form-label {
    font-size: 14px;
    color: var(--text-main);
}
.form-label .star {
    color: #f53f3f;
}
.form-input {
    width: 100%;
    height: 46px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 0 16px;
    font-size: 15px;
    color: var(--text-main);
    transition: var(--transition-all);
    background: #fcfcfd;
}
.form-input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.12);
    background: #fff;
}
.form-check-title {
    font-size: 16px;
    margin: 32px 0 16px;
    color: var(--text-main);
    font-weight: 500;
}
.check-group-row {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    row-gap: 16px;
    margin-bottom: 32px;
}
.check-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-secondary);
    cursor: pointer;
}
.form-textarea-box {
    margin-bottom: 32px;
}
.form-textarea {
    width: 100%;
    min-height: 200px;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 16px;
    font-size: 15px;
    resize: vertical;
    background: #fcfcfd;
    transition: var(--transition-all);
}
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.12);
    background: #fff;
}
.textarea-tip {
    text-align: right;
    font-size: 13px;
    color: var(--text-weak);
    margin-top: 6px;
}
.submit-btn {
    width: 180px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary), var(--primary-deep));
    color: #fff;
    border: none;
    font-size: 16px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-all);
}
.submit-btn:hover {
    box-shadow: 0 8px 20px rgba(245, 158, 11, 0.25);
    transform: translateY(-2px);
}
.submit-btn:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

@media (max-width: 1200px) {
    .func-grid {
        grid-template-columns: repeat(2,1fr);
    }
    .city-case-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}
@media (max-width: 1024px) {
    .platform-container {
        grid-template-columns: 1fr;
    }
    .platform-sidebar {
        position: static;
    }
    .form-row-two {
        grid-template-columns: 1fr;
    }
    .pet-id-img {
        width: 95%;
    }
    .city-case-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 640px) {
    .platform-wrap {
        padding: 64px 0;
    }
    .anchor-section {
        padding: 32px 20px;
    }
    .func-grid {
        grid-template-columns: 1fr;
    }
    .city-case-grid {
        grid-template-columns: 1fr;
    }
    .pet-id-img {
        width: 100%;
    }
    .pet-id-card-box {
        padding: 24px 16px;
    }
}