/* ==========================================================================
   Senflare Link 官网样式
========================================================================== */

/* 基础重置样式 */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

/* 字体：阿里普惠体文件已移除，走系统字体栈（PingFang SC / Microsoft YaHei 等） */

body {
    font-family: "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
    background: var(--white);
    color: var(--gray-800);
    line-height: 1.6;
    overflow-x: hidden;
}

/* 官网特有的颜色变量 */
:root {
    --orange: var(--color-primary, #FF6901);
    --orange-light: var(--color-primary-light, #FF8534);
    --orange-dark: var(--color-primary-dark, #E55D00);
    --orange-bg: rgba(var(--landing-rgb, 255, 105, 1), 0.08);
    --white: #ffffff;
    --gray-50: #f7fafc;
    --gray-100: #f0f0f0;
    --gray-200: #eeeeee;
    --gray-400: #bdbdbd;
    --gray-500: #9e9e9e;
    --gray-600: #757575;
    --gray-800: #424242;
    --gray-900: #212121;
}

/* ==================== 顶部导航栏 ==================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 0.75rem 2rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    transition: all 0.3s;
}

.header.scrolled {
    box-shadow: 0 2px 20px rgba(var(--landing-rgb, 255, 105, 1), 0.1);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex: 1;   /* 全局引用 SenflareUI 后 .header 变为 flex，内层须撑满否则收缩贴左 */
    min-width: 0;
}

.logo {
    display: flex;
    align-items: center;
    text-decoration: none;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: #212121;
}

/* 覆盖 common.css 中为侧边栏设置的 display: none */
.header .logo-text {
    display: inline !important;
}

.logo-text span {
    color: var(--color-primary, #FF6901);
}

.nav .btn {
    margin-left: 1rem;
}

.nav .btn-primary {
    background: linear-gradient(135deg, var(--orange), var(--orange-light));
    color: white;
    border: none;
    box-shadow: 0 3px 12px rgba(var(--landing-rgb, 255, 105, 1), 0.3);
}

.nav .btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 20px rgba(var(--landing-rgb, 255, 105, 1), 0.4);
    color: white;
}

.btn {
    padding: 0.5rem 1.25rem;
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    text-decoration: none;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    background: linear-gradient(135deg, var(--orange), var(--orange-light));
    border-color: transparent;
    color: #fff;
    box-shadow: 0 3px 12px rgba(var(--landing-rgb, 255, 105, 1), 0.3);
}

.btn-primary {
    background: linear-gradient(135deg, var(--orange), var(--orange-light));
    color: white;
    box-shadow: 0 3px 12px rgba(var(--landing-rgb, 255, 105, 1), 0.3);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 5px 20px rgba(var(--landing-rgb, 255, 105, 1), 0.4);
    color: white;
}

.btn-lg {
    height: 40px;   /* 显式覆盖全局引用的 SenflareUI .btn 固定高度(36px)，否则加高无效 */
    padding: 0 1.9rem;
    font-size: 0.95rem;
}

/* ==================== 首屏横幅 - 科技风格 ==================== */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem 2rem 4rem;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--gray-50) 0%, #ffffff 50%, var(--gray-100) 100%);
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
    overflow: hidden;
}

/* 科技网格 */
.cyber-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(var(--landing-rgb, 255, 105, 1), 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(var(--landing-rgb, 255, 105, 1), 0.06) 1px, transparent 1px);
    background-size: 60px 60px;
}

/* 光晕效果 */
.cyber-glow {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
}

.cyber-glow-1 {
    width: 600px;
    height: 600px;
    top: -150px;
    right: -100px;
    background: radial-gradient(circle, rgba(var(--landing-rgb, 255, 105, 1), 0.12) 0%, transparent 70%);
    animation: glowPulse 6s ease-in-out infinite;
}

.cyber-glow-2 {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: 10%;
    background: radial-gradient(circle, rgba(var(--landing-rgb, 255, 105, 1), 0.08) 0%, transparent 70%);
    animation: glowPulse 8s ease-in-out infinite reverse;
}

@keyframes glowPulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
}

/* 全球网络效果 */
.network-canvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.hero-inner {
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: left;
}

@keyframes blink {

    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.3;
    }
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.6;
    margin-top: 2rem;
    margin-bottom: 2rem;
    color: var(--gray-900);
}

.hero-title .typewriter {
    display: inline;
    background: linear-gradient(135deg, var(--color-primary, #FF6901), var(--color-primary-dark, #E55D00));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    border-right: 3px solid var(--color-primary, #FF6901);
    animation: cursorBlink 0.8s step-end infinite;
}

@keyframes cursorBlink {
    50% { border-color: transparent; }
}

.hero-desc {
    font-size: 0.95rem;
    color: var(--gray-600);
    margin-bottom: 2rem;
    line-height: 1.8;
    max-width: 480px;
}

.hero-actions {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Hero 指标 */
.hero-metrics {
    margin-top: 2.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--gray-200);
    font-size: 0.85rem;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    line-height: 2;
}

.hero-metrics strong {
    color: var(--orange);
    font-weight: 700;
}

.hero-metrics-sep {
    color: var(--gray-300);
}

/* ==================== 通用区块样式 ==================== */
.section {
    padding: 5rem 2rem;
}

/* ==================== 动画效果 ==================== */
/* 滚动进入动画 */

/* 延迟动画 */

/* Hero 入场动画 */
.hero-content {
    animation: heroFadeIn 0.8s ease forwards;
}

@keyframes heroFadeIn {
    from {
        opacity: 0;
        transform: translateY(40px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    animation: heroFadeIn 0.8s ease 0.1s forwards;
    opacity: 0;
}

.hero-desc {
    animation: heroFadeIn 0.8s ease 0.2s forwards;
    opacity: 0;
}

.hero-actions {
    animation: heroFadeIn 0.8s ease 0.3s forwards;
    opacity: 0;
}

.hero-metrics {
    animation: heroFadeIn 0.8s ease 0.4s forwards;
    opacity: 0;
}

@keyframes float1 {

    100% {
        transform: translate(0, 0) rotate(0deg);
    }

    50% {
        transform: translate(-20px, 20px) rotate(5deg);
    }
}

@keyframes float2 {

    100% {
        transform: translate(0, 0);
    }

    50% {
        transform: translate(15px, -15px);
    }
}

/* 脉冲动画（已停用：hover 缩放会让按钮文字跟着放大） */
@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes flowArrow {

    100% {
        opacity: 0.5;
        transform: translateX(0);
    }

    50% {
        opacity: 1;
        transform: translateX(3px);
    }
}

@keyframes iconPop {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.15);
    }

    100% {
        transform: scale(1.05);
    }
}

@keyframes ipPulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* 计数器动画 */
@keyframes countUp {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes gradientMove {
    0%, 100% {
        transform: translate(0, 0);
    }
    50% {
        transform: translate(-30px, 30px);
    }
}

@keyframes toastIn {
    from {
        opacity: 0;
        transform: translateX(-50%) translateY(-15px);
    }

    to {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
}

@keyframes toastOut {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
        transform: translateX(-50%) translateY(-15px);
    }
}

/* ==================== 延迟测试卡片 ==================== */
:root {
    --latency-49: #22c55e;
    --latency-149: #84cc16;
    --latency-299: #faab41;
    --latency-999: #f97316;
    --latency-1000: #ef4444;
    --latency-fail: #ef4444;
}

@keyframes latencyPulse {
    0%, 100% {
        opacity: 0.4;
    }
    50% {
        opacity: 0.8;
    }
}

@media (max-width: 900px) {
    
}

@media (max-width: 600px) {
    
}

@media (max-width: 400px) {
    
}

/* ==================== 响应式适配 ==================== */
@media (max-width: 900px) {
    .header-inner {
        padding: 0 1rem;
    }

    .hero-title {
        font-size: 2rem;
    }

    .hero-desc {
        font-size: 0.9rem;
    }

    .hero-metrics-sep {
        display: none;
    }

    .hero-metrics {
        flex-direction: column;
        gap: 0.25rem;
    }

    .section {
        padding: 3.5rem 1.5rem;
    }
}

@media (max-width: 768px) {
    .header {
        padding: 1.1rem 1.5rem;
    }

    .logo-text {
        font-size: 1.05rem;
    }

    .nav.open {
        max-height: 360px;
    }

    .hero {
        padding: 6rem 1.5rem 3rem;
        min-height: 70vh;
    }

    .hero-title {
        font-size: 1.8rem;
        line-height: 1.35;
        margin-top: 2rem;
    }

    .hero-actions .btn {
        padding: 0.5rem 1.25rem;
        font-size: 0.85rem;
    }

    .hero-desc {
        font-size: 0.85rem;
    }

    .hero-metrics {
        font-size: 0.8rem;
        flex-direction: row;
        flex-wrap: wrap;
        gap: 0.5rem 1rem;
    }
}

@media (max-width: 600px) {
    .header {
        padding: 1rem 1rem;
    }

    .logo-text {
        font-size: 1rem;
    }

    .hero {
        padding: 5.5rem 1rem 2.5rem;
        min-height: 65vh;
    }

    .hero-title {
        font-size: 1.5rem;
        margin-top: 1.75rem;
        line-height: 1.6;
    }

    .hero-title .typewriter {
        font-size: 1.5rem;
    }

    .hero-actions .btn {
        padding: 0.45rem 1rem;
        font-size: 0.8rem;
    }

    .hero-desc {
        font-size: 0.8rem;
    }

    .hero-metrics {
        gap: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }

    .cyber-grid {
        display: none;
    }

    .section {
        padding: 2.5rem 1rem;
    }
}
/* ==================== Senflare Link Lite 追加：品牌角标（同 login 页 .brand-lite，缩小版） ==================== */
.brand-lite {
    display: inline-block;
    vertical-align: 8px;
    margin-left: 5px;
    padding: 1px 5px;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--color-primary, #FF6901), var(--color-primary-dark, #E55D00));
    color: #fff;
    font-size: 9px;
    font-weight: 800;
    letter-spacing: .3px;
    line-height: 1.5;
}

.logo-text .brand-lite { color: #fff; }