/* ==========================================================
   DiPlay 官网样式
   配色取自 App Logo：鲜亮绿 (#00C853) + 深绿渐变 + 墨绿深色
   ========================================================== */

:root {
    --green: #00c853;
    --green-light: #5efc82;
    --green-dark: #009624;
    --green-deeper: #00701a;
    --ink: #0b1f14;
    --ink-2: #33473d;
    --ink-3: #6b7f75;
    --bg: #ffffff;
    --bg-soft: #f2fbf6;
    --bg-dark: #06140d;
    --radius: 16px;
    --shadow: 0 10px 30px rgba(0, 150, 36, 0.12);
    --shadow-lg: 0 24px 60px rgba(0, 150, 36, 0.22);
    --transition: 0.25s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 76px;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    color: var(--ink);
    background: var(--bg);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

img {
    display: block;
    max-width: 100%;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: min(1200px, 92%);
    margin: 0 auto;
}

.container-narrow {
    width: min(860px, 92%);
}

/* ===================== 顶部导航 ===================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid rgba(0, 150, 36, 0.08);
    transition: box-shadow var(--transition);
}

.navbar.scrolled {
    box-shadow: 0 4px 20px rgba(0, 150, 36, 0.12);
}

.nav-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 68px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-logo {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--green-light), var(--green-dark));
    object-fit: cover;
}

.brand-name {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.5px;
    background: linear-gradient(90deg, var(--green-dark), var(--green));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    font-size: 0.98rem;
    font-weight: 500;
    color: var(--ink-2);
    transition: color var(--transition);
}

.nav-links a:hover {
    color: var(--green);
}

.nav-cta {
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    color: #fff !important;
    padding: 9px 22px;
    border-radius: 999px;
    box-shadow: 0 6px 16px rgba(0, 200, 83, 0.35);
    transition: transform var(--transition), box-shadow var(--transition);
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 200, 83, 0.45);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.nav-toggle span {
    width: 24px;
    height: 2.5px;
    background: var(--ink);
    border-radius: 2px;
    transition: var(--transition);
}

/* ===================== 首屏 Hero ===================== */
.hero {
    position: relative;
    padding: 150px 0 100px;
    overflow: hidden;
    background: var(--bg-dark);
    color: #eafff2;
}

.hero-bg {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 60% 55% at 78% 42%, rgba(0, 200, 83, 0.35), transparent 65%),
        radial-gradient(ellipse 45% 45% at 12% 85%, rgba(0, 150, 36, 0.28), transparent 60%),
        linear-gradient(160deg, #071a10 0%, #06140d 55%, #04200f 100%);
}

.hero-bg::after {
    content: "";
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(94, 252, 130, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(94, 252, 130, 0.05) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 70% 70% at 60% 40%, #000 30%, transparent 75%);
}

.hero-inner {
    position: relative;
    display: grid;
    grid-template-columns: 5fr 6fr;
    gap: 48px;
    align-items: center;
}

.hero-badge {
    display: inline-block;
    padding: 7px 18px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--green-light);
    border: 1px solid rgba(94, 252, 130, 0.4);
    background: rgba(0, 200, 83, 0.12);
    margin-bottom: 24px;
}

.hero h1 {
    font-size: clamp(2rem, 4.2vw, 3.3rem);
    line-height: 1.25;
    font-weight: 800;
    letter-spacing: 1px;
    color: #fff;
}

.hero .hl {
    background: linear-gradient(90deg, var(--green-light), var(--green));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-desc {
    margin: 22px 0 28px;
    font-size: 1.05rem;
    color: rgba(234, 255, 242, 0.78);
    max-width: 540px;
}

.hero-meta {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 18px;
    padding: 16px 22px;
    border-radius: var(--radius);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(94, 252, 130, 0.18);
    backdrop-filter: blur(6px);
    margin-bottom: 32px;
    width: fit-content;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.meta-label {
    font-size: 0.78rem;
    color: rgba(234, 255, 242, 0.55);
}

.meta-value {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--green-light);
}

.meta-divider {
    width: 1px;
    height: 34px;
    background: rgba(94, 252, 130, 0.2);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-weight: 600;
    border-radius: 999px;
    cursor: pointer;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    border: none;
}

.btn-lg {
    padding: 15px 34px;
    font-size: 1.05rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--green-light), var(--green) 55%, var(--green-dark));
    color: #04310f;
    box-shadow: 0 12px 30px rgba(0, 200, 83, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 18px 40px rgba(0, 200, 83, 0.55);
}

.btn-ghost {
    color: var(--green-light);
    border: 1.5px solid rgba(94, 252, 130, 0.45);
    background: transparent;
}

.btn-ghost:hover {
    background: rgba(0, 200, 83, 0.12);
    transform: translateY(-3px);
}

/* 首屏截图展示 */
.hero-shot {
    position: relative;
}

.shot-frame {
    position: relative;
    border-radius: 20px;
    padding: 10px;
    background: linear-gradient(145deg, rgba(94, 252, 130, 0.25), rgba(0, 150, 36, 0.08));
    border: 1px solid rgba(94, 252, 130, 0.35);
    box-shadow: var(--shadow-lg);
    transform: perspective(1200px) rotateY(-6deg) rotateX(2deg);
    transition: transform 0.5s ease;
}

.shot-frame:hover {
    transform: perspective(1200px) rotateY(0deg) rotateX(0deg);
}

.shot-img {
    width: 100%;
    min-height: 340px;
    object-fit: cover;
    border-radius: 12px;
    background:
        linear-gradient(145deg, rgba(0, 200, 83, 0.16), rgba(4, 32, 15, 0.6)),
        repeating-linear-gradient(45deg, rgba(94, 252, 130, 0.06) 0 14px, transparent 14px 28px);
}

.shot-glow {
    position: absolute;
    inset: auto -8% -14% -8%;
    height: 45%;
    background: radial-gradient(ellipse at center, rgba(0, 200, 83, 0.4), transparent 70%);
    filter: blur(30px);
    z-index: -1;
}

/* ===================== 通用 Section ===================== */
.section {
    padding: 96px 0;
}

.section-alt {
    background: var(--bg-soft);
}

.section-head {
    text-align: center;
    margin-bottom: 56px;
}

.section-head h2 {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 800;
    color: var(--ink);
    position: relative;
    display: inline-block;
    padding-bottom: 14px;
}

.section-head h2::after {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 56px;
    height: 4px;
    border-radius: 4px;
    background: linear-gradient(90deg, var(--green-light), var(--green-dark));
}

.section-head p {
    margin-top: 14px;
    color: var(--ink-3);
    font-size: 1.02rem;
}

/* ===================== 功能卡片 ===================== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.feature-card {
    background: #fff;
    border: 1px solid rgba(0, 150, 36, 0.1);
    border-radius: var(--radius);
    padding: 34px 28px;
    box-shadow: var(--shadow);
    transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 200, 83, 0.35);
}

.feature-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, rgba(94, 252, 130, 0.2), rgba(0, 200, 83, 0.14));
    color: var(--green-dark);
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 28px;
    height: 28px;
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--ink);
}

.feature-card p {
    font-size: 0.94rem;
    color: var(--ink-3);
}

/* ===================== 下载区域 ===================== */
.download {
    padding: 96px 0;
    background:
        radial-gradient(ellipse 50% 60% at 85% 20%, rgba(0, 200, 83, 0.3), transparent 60%),
        linear-gradient(150deg, #071a10, #06140d 60%, #04200f);
    color: #eafff2;
    text-align: center;
}

.download-inner h2 {
    font-size: clamp(1.8rem, 3.2vw, 2.5rem);
    font-weight: 800;
    color: #fff;
}

.download-sub {
    margin: 12px 0 40px;
    color: rgba(234, 255, 242, 0.7);
}

.download-card {
    display: flex;
    align-items: center;
    gap: 24px;
    max-width: 760px;
    margin: 0 auto;
    padding: 30px 36px;
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(94, 252, 130, 0.25);
    backdrop-filter: blur(8px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
    text-align: left;
}

.download-logo {
    width: 74px;
    height: 74px;
    border-radius: 18px;
    background: linear-gradient(135deg, var(--green-light), var(--green-dark));
    object-fit: cover;
    flex-shrink: 0;
}

.download-info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
}

.download-name {
    font-size: 1.15rem;
    font-weight: 700;
    color: #fff;
}

.download-ver {
    font-size: 0.88rem;
    color: rgba(234, 255, 242, 0.6);
}

.btn-download {
    flex-shrink: 0;
    padding: 16px 38px;
    font-size: 1.1rem;
    background: linear-gradient(135deg, var(--green-light), var(--green) 55%, var(--green-dark));
    color: #04310f;
    box-shadow: 0 12px 34px rgba(0, 200, 83, 0.5);
    animation: pulse 2.4s infinite;
}

.btn-download svg {
    width: 22px;
    height: 22px;
}

.btn-download:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 18px 44px rgba(0, 200, 83, 0.65);
}

@keyframes pulse {
    0%, 100% { box-shadow: 0 12px 34px rgba(0, 200, 83, 0.5); }
    50% { box-shadow: 0 12px 34px rgba(0, 200, 83, 0.5), 0 0 0 14px rgba(0, 200, 83, 0.08); }
}

.download-tip {
    margin-top: 26px;
    font-size: 0.88rem;
    color: rgba(234, 255, 242, 0.55);
}

/* ===================== 用户评价 ===================== */
.review-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px;
}

.review-card {
    background: #fff;
    border: 1px solid rgba(0, 150, 36, 0.1);
    border-radius: var(--radius);
    padding: 30px 28px;
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: transform var(--transition), box-shadow var(--transition);
}

.review-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.review-stars {
    color: var(--green);
    font-size: 1.05rem;
    letter-spacing: 3px;
}

.review-text {
    flex: 1;
    font-size: 0.96rem;
    color: var(--ink-2);
}

.review-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 14px;
    border-top: 1px dashed rgba(0, 150, 36, 0.15);
}

.avatar {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.05rem;
    color: #fff;
    background: linear-gradient(135deg, var(--green), var(--green-dark));
    flex-shrink: 0;
}

.review-name {
    font-weight: 700;
    font-size: 0.95rem;
}

.review-role {
    font-size: 0.82rem;
    color: var(--ink-3);
}

/* ===================== FAQ ===================== */
.faq-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.faq-item {
    background: #fff;
    border: 1px solid rgba(0, 150, 36, 0.12);
    border-radius: 14px;
    overflow: hidden;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item.active {
    border-color: rgba(0, 200, 83, 0.4);
    box-shadow: var(--shadow);
}

.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--ink);
    text-align: left;
    font-family: inherit;
}

.faq-arrow {
    flex-shrink: 0;
    width: 12px;
    height: 12px;
    border-right: 2.5px solid var(--green);
    border-bottom: 2.5px solid var(--green);
    transform: rotate(45deg);
    transition: transform var(--transition);
}

.faq-item.active .faq-arrow {
    transform: rotate(-135deg);
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-a p {
    padding: 0 24px 22px;
    font-size: 0.94rem;
    color: var(--ink-3);
}

/* ===================== 页脚 ===================== */
.footer {
    background: var(--bg-dark);
    color: rgba(234, 255, 242, 0.7);
    padding: 56px 0 40px;
    text-align: center;
}

.footer-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 14px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-desc {
    font-size: 0.95rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 26px;
    margin: 8px 0;
}

.footer-links a {
    font-size: 0.92rem;
    transition: color var(--transition);
}

.footer-links a:hover {
    color: var(--green-light);
}

.footer-copy {
    font-size: 0.8rem;
    color: rgba(234, 255, 242, 0.4);
}

/* ===================== 进场动画 ===================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===================== 响应式 ===================== */
@media (max-width: 992px) {
    .hero-inner {
        grid-template-columns: 1fr;
        gap: 56px;
    }

    .hero-text {
        text-align: center;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-meta,
    .hero-actions {
        justify-content: center;
        margin-left: auto;
        margin-right: auto;
    }

    .shot-frame {
        transform: none;
    }

    .feature-grid,
    .review-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .nav-links {
        position: fixed;
        top: 68px;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        background: #fff;
        border-bottom: 1px solid rgba(0, 150, 36, 0.12);
        box-shadow: 0 14px 30px rgba(0, 150, 36, 0.12);
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .nav-links.open {
        max-height: 340px;
    }

    .nav-links a {
        padding: 14px 24px;
        border-top: 1px solid rgba(0, 150, 36, 0.07);
    }

    .nav-cta {
        margin: 10px 24px 16px;
        text-align: center;
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.open span:nth-child(1) {
        transform: translateY(7.5px) rotate(45deg);
    }

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

    .nav-toggle.open span:nth-child(3) {
        transform: translateY(-7.5px) rotate(-45deg);
    }

    .hero {
        padding: 120px 0 72px;
    }

    .section,
    .download {
        padding: 64px 0;
    }

    .feature-grid,
    .review-grid {
        grid-template-columns: 1fr;
    }

    .hero-meta {
        width: 100%;
        justify-content: space-around;
        gap: 10px;
        padding: 14px 10px;
    }

    .meta-divider {
        display: none;
    }

    .download-card {
        flex-direction: column;
        text-align: center;
        padding: 30px 22px;
    }

    .btn-download {
        width: 100%;
    }

    .hero-actions .btn {
        flex: 1;
        min-width: 150px;
    }
}