@charset "utf-8";
:root{
  /* 排版刻度。--gw-scale 决定整站的字号与字重档位，改它会连带影响版面；
     --gw-fit 决定内容区宽度与卡片列数；--gw-rhythm 决定段落留白。
     三者相互引用，单独改动任何一个都会连锁影响全局版式，请勿随意调整。 */
  --gw-scale: 8;                                        /* 排版刻度 8          */
  --gw-fit: 150;                                        /* 内容宽度刻度 150    */
  --gw-rhythm: 8;                                       /* 留白刻度 8          */
  --gw-unit: calc(var(--gw-scale) * 1px);               /* 8px                 */
  --gw-span: calc(var(--gw-unit) * var(--gw-fit));      /* 1200px              */
  --gw-sec-y: calc(var(--gw-unit) * var(--gw-rhythm));  /* 64px                */
  --gw-radius-lg: calc(var(--gw-unit) * 2.25);          /* 18px                */
  /* 字重档位：与上方刻度共用同一组数值，字重随刻度缩放 */
  --gw-fw-medium: calc(var(--gw-scale) * 62.5);         /* 500                 */
  --gw-fw-semi: calc(var(--gw-scale) * 75);             /* 600                 */
  --gw-fw-bold: calc(var(--gw-scale) * 87.5);           /* 700                 */
  --gw-fw-black: calc(var(--gw-scale) * 100);
  --gw-build: 'YmFpc291LWFtc2Vv';
}

:root{--primary-color: #0062ff;}
.nav-link{font-size: 16px; position:relative; transition:all .3s ease; }
.nav-link::after{ content:''; position:absolute; bottom:-5px; left:0; width:0; height:2px; background-color:var(--primary-color); transition:width .3s ease; }
.nav-link:hover::after{ width:100%; }
.discount-modal{display:none;position:fixed;top:0;left:0;width:100%;height:100%;background:rgba(0,0,0,.45);z-index:99999;justify-content:center;align-items:center;padding:20px;box-sizing:border-box;overflow-y:auto}
.modal-container{background:linear-gradient(160deg,#fffefe 0%,#fff9f5 40%,#fff5f0 70%,#fffbf7 100%);border-radius:24px;padding:42px 38px;max-width:600px;width:100%;box-shadow:0 30px 90px rgba(220,38,38,.15),0 10px 30px rgba(251,146,60,.1),inset 0 2px 0 rgba(255,255,255,.8);border:2px solid rgba(254,202,202,.6);animation:modalFadeInUp .45s cubic-bezier(.34,1.56,.64,1);position:relative;overflow:hidden}
.modal-container::before,.modal-container::after{content:'';position:absolute;pointer-events:none}
.modal-container::before{top:-120px;left:-120px;width:280px;height:280px;background:radial-gradient(circle,rgba(253,88,88,.12) 0%,transparent 70%)}
.modal-container::after{bottom:-80px;right:-80px;width:240px;height:240px;background:radial-gradient(circle,rgba(251,191,36,.1) 0%,transparent 70%)}
@keyframes modalFadeInUp{from{opacity:0;transform:translateY(35px) scale(.94)}to{opacity:1;transform:translateY(0) scale(1)}}
.modal-close{color:#9ca3af;font-size:24px;height:36px;width:36px;text-align:center;line-height:34px;cursor:pointer;position:absolute;right:14px;top:14px;border-radius:50%;transition:all .25s ease;background:rgba(255,255,255,.9);border:1px solid #e5e7eb;z-index:10}
.modal-close:hover{background:linear-gradient(135deg,#dc2626,#ef4444);color:#fff;transform:rotate(90deg) scale(1.05);border-color:transparent;box-shadow:0 4px 16px rgba(239,68,68,.35)}
.modal-header{text-align:center;padding:0 0 28px;position:relative;z-index:1}
.modal-logo{width:66px;height:auto;margin-bottom:18px;display:inline-block;filter:drop-shadow(0 4px 12px rgba(253,88,88,.25));animation:logoBounce 2.5s ease-in-out infinite}
@keyframes logoBounce{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.modal-header h2{font-size:28px;font-weight:800;color:transparent;background:linear-gradient(135deg,#dc2626 0%,#f97316 50%,#ef4444 100%);-webkit-background-clip:text;background-clip:text;margin:0 0 10px 0;letter-spacing:1.5px}
.modal-header em{display:block;font-size:14px;color:#6b7280;font-style:normal;font-weight:500;letter-spacing:.5px}
.modal-body{position:relative;z-index:1}
.modal-form{display:flex;flex-direction:column;gap:18px}
.form-group-inline{display:flex;gap:16px}
.form-item{flex:1;display:flex;flex-direction:column;gap:6px}
.form-item-full{display:flex;flex-direction:column;gap:6px}
.dm-label{display:block;font-size:13px;color:#374151;font-weight:600}
.dm-required{color:#dc2626;font-weight:700}
.dm-input{width:100%;padding:14px 17px;border:1.8px solid #e5e7eb;border-radius:11px;font-size:14px;box-sizing:border-box;outline:none;transition:all .25s ease;background:#fff;color:#111827;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.dm-input::placeholder{color:#9ca3af}
.dm-input:focus{border-color:#f97316;box-shadow:0 0 0 4px rgba(249,115,22,.12),0 4px 16px rgba(249,115,22,.12)}
.form-submit{width:80%;margin:8px auto 0;display:block;padding:16px;border:none;border-radius:12px;font-size:17px;font-weight:700;color:#fff;cursor:pointer;transition:all .3s cubic-bezier(.4,0,.2,1);background:linear-gradient(135deg,#ef4444 0%,#f97316 50%,#fb923c 100%);box-shadow:0 8px 28px rgba(239,68,68,.4),0 4px 14px rgba(249,115,22,.25),inset 0 2px 0 rgba(255,255,255,.25);letter-spacing:1.5px;position:relative;overflow:hidden}
.form-submit::before{content:'';position:absolute;top:0;left:-100%;width:100%;height:100%;background:linear-gradient(90deg,transparent,rgba(255,255,255,.25),transparent);transition:left .55s ease}
.form-submit:hover{transform:translateY(-3px) scale(1.01);box-shadow:0 14px 38px rgba(239,68,68,.48),0 6px 18px rgba(249,115,22,.32)}
.form-submit:hover::before{left:100%}
.form-submit:active{transform:translateY(-1px) scale(.98)}
.modal-footer{text-align:center;font-size:12px;color: #999;}
@media(max-width:600px){.discount-modal{padding:10px;align-items:flex-start}.modal-container{max-width:100%;border-radius:18px;padding:30px 22px;margin-top:20px}.form-group-inline{flex-direction:column;gap:14px}.modal-close{right:10px;top:10px;width:32px;height:32px;line-height:30px;font-size:22px}.modal-header{padding:0 0 24px!important}.modal-header h2{font-size:23px!important}.modal-header em{font-size:13px!important}.modal-logo{width:58px}.form-submit{padding:15px!important;font-size:16px!important}}

/* ==========================================================================
   AI 邮件安全网关 页面样式
   全部规则以 gw- 前缀隔离，不污染全站公共样式；
   尺寸一律引用文件顶部 :root 设计令牌，调整版面请改令牌数值。
   ========================================================================== */
body#ai-gateway{background:#fff;color:#101828;-webkit-font-smoothing:antialiased;overflow-x:hidden}
.gw-wrap{width:100%;max-width:var(--gw-span);margin:0 auto;padding:0 20px;box-sizing:border-box}
.gw-sec{padding:var(--gw-sec-y) 0}
.gw-sec--soft{background:linear-gradient(180deg,#f4f8ff 0%,#ffffff 100%)}
.gw-sec--gray{background:#f7f9fc}

/* ---------- 通用标题 ---------- */
.gw-head{text-align:center;margin-bottom:40px}
.gw-head .gw-kicker{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:var(--gw-fw-semi);color:#0062ff;background:#eaf2ff;border-radius:999px;padding:6px 14px;letter-spacing:.5px}
.gw-head .gw-kicker img{width:18px;height:18px;display:block}
/* 字重统一走令牌，随 --gw-scale 缩放（见文件顶部 :root）。不要在这里写死数字，否则改刻度时字重会脱节。 */
.gw-head h2{font-size:30px;line-height:1.35;font-weight:var(--gw-fw-black);color:#0b1a33;margin:16px 0 12px;letter-spacing:-.4px}
.gw-head h2 em{font-style:normal;background:linear-gradient(92deg,#0062ff 0%,#00b2ff 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.gw-head p{font-size:15px;line-height:1.8;color:#5b6b84;max-width:820px;margin:0 auto}
.gw-head--left{text-align:left}
.gw-head--left p{margin:0}

/* ---------- 按钮 ---------- */
.gw-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 30px;border-radius:6px;font-size:16px;font-weight:var(--gw-fw-semi);cursor:pointer;border:1px solid transparent;transition:all .25s ease;white-space:nowrap}
.gw-btn-primary{background:linear-gradient(92deg,#0062ff,#2f9bff);color:#fff;box-shadow:0 8px 20px rgba(0,98,255,.28)}
.gw-btn-primary:hover{color:#fff;box-shadow:0 12px 26px rgba(0,98,255,.38);transform:translateY(-2px)}
.gw-btn-ghost{background:#fff;color:#0062ff;border-color:#bcd7ff}
.gw-btn-ghost:hover{background:#f0f7ff;color:#0062ff;border-color:#0062ff}
.gw-btn-lg{height:54px;padding:0 40px;font-size:17px}
.gw-btn-plain{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.gw-btn-plain:hover{background:#fff;color:#0062ff}

/* ==========================================================================
   1. 首屏
   ========================================================================== */
.gw-hero{position:relative;overflow:hidden;background:#eaf1fb}
.gw-hero-bg{position:absolute;top:0;left:0;width:100%;height:100%;background:url(../images/hero-3d.jpg) right center no-repeat;background-size:cover}
.gw-hero-bg::after{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(90deg,#ffffff 0%,rgba(255,255,255,.96) 34%,rgba(255,255,255,.72) 52%,rgba(255,255,255,.18) 76%,rgba(255,255,255,0) 100%)}
.gw-hero-inner{position:relative;z-index:2;padding:54px 20px 60px}
/* 首屏首促徽标：与价格优惠横幅同用橘红暖色，保持促销语汇一致 */
.gw-flash{display:inline-block;font-size:14px;font-weight:var(--gw-fw-semi);color:#c02605;background:linear-gradient(92deg,#fff5ef,#ffe8d8);border:1px solid #ffc9a0;border-radius:999px;padding:7px 18px;margin-bottom:22px;line-height:1.6;box-shadow:0 6px 18px rgba(216,64,16,.14);backdrop-filter:blur(4px)}
.gw-flash b{color:#e8410d;white-space:nowrap}
.gw-hero h1{font-size:42px;line-height:1.28;font-weight:var(--gw-fw-black);color:#0b1a33;letter-spacing:-.6px;margin-bottom:20px}
.gw-hero h1 em{font-style:normal;background:linear-gradient(92deg,#0062ff 0%,#00c2ff 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.gw-hero-desc{font-size:16px;line-height:1.9;color:#465b7a;max-width:660px;margin-bottom:32px}
.gw-hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.gw-hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 26px;max-width:620px}
.gw-hero-stats li{border-left:2px solid #0062ff;padding-left:14px}
/* 注意：类名必须带 gw- 前缀，gong.css 里 .t / .y / .w / .z 是全局 20×20 图标精灵，裸 .t 会被覆盖成 20px 宽 */
.gw-stat-n{display:block;font-size:19px;font-weight:var(--gw-fw-black);color:#0b1a33;line-height:1.3}
.gw-stat-t{display:block;width:auto;height:auto;padding:0;background:none;font-size:13px;line-height:1.65;color:#6b7c95;margin-top:3px}

/* ==========================================================================
   2. 八大能力
   ========================================================================== */
.gw-grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.gw-card{background:#fff;border:1px solid #e8eef8;border-radius:12px;padding:24px 22px;transition:all .28s ease}
.gw-card:hover{transform:translateY(-4px);box-shadow:0 14px 34px rgba(12,50,120,.10);border-color:#cddffb}
.gw-card .gw-no{display:inline-block;font-size:12px;font-weight:var(--gw-fw-black);letter-spacing:1px;color:#0062ff;background:#eaf2ff;border-radius:6px;padding:3px 8px;margin-bottom:12px}
.gw-card h3{font-size:17px;font-weight:var(--gw-fw-bold);color:#101828;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.gw-card h3 .ck{width:18px;height:18px;flex:0 0 18px;background:url(../images/icon-check.png) center/contain no-repeat}
.gw-card p{font-size:13.5px;line-height:1.8;color:#66788f}

/* ==========================================================================
   3. 首促折扣条
   ========================================================================== */
/* 价格优惠/促销类横幅统一用橘红色系，与全站蓝色主色区分开，保证促销信息「被一眼看到」。
   渐变走「左侧饱和橘红 → 右侧亮橘」，**不掺深栗色**（掺了会发闷显脏，用户已否掉一版）。
   底色偏亮，所以文字不直接压在白底渐变上：折扣胶囊用**不透明白底 + 深橘红字**，
   CTA 用**深红实底 + 白字**，两层各自与底色拉开对比。 */
.gw-promo{position:relative;overflow:hidden;background:linear-gradient(100deg,#e93a06 0%,#f2490b 36%,#fa5a11 68%,#ff8029 100%);color:#fff;padding:26px 0}
.gw-promo::before{content:"";position:absolute;top:-30%;right:-10%;width:44%;height:160%;background:radial-gradient(closest-side,rgba(255,232,168,.22),rgba(255,232,168,0) 100%);pointer-events:none}
.gw-promo::after{content:"";position:absolute;left:-8%;top:-60%;width:30%;height:170%;background:radial-gradient(closest-side,rgba(255,255,255,.16),rgba(255,255,255,0) 100%);pointer-events:none}
.gw-promo-inner{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;gap:16px 26px;justify-content:center}
/* 标题是横幅上唯一直接压在渐变上的白字：字号提到 19px/800 走 WCAG「大字」阈值(3:1)，
   再靠 text-shadow 提边缘对比。渐变中段（标题所在 33%~67%）的亮度就是按这条定的。 */
.gw-promo .lead{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:var(--gw-fw-black);letter-spacing:.2px;line-height:1.45;text-shadow:0 2px 6px rgba(130,20,0,.42)}
@media(min-width:1001px){.gw-promo .lead{width:100%;justify-content:center}}
.gw-promo .lead img{width:28px;height:28px;filter:drop-shadow(0 2px 6px rgba(130,20,0,.40))}
/* 折扣胶囊：不透明白底 + 深橘红字（色号按白底反算：正文 6.5:1、数字 4.9:1） */
.gw-promo .tier{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:var(--gw-fw-semi);color:#b81f05;background:#fff;border:1px solid rgba(255,255,255,.92);border-radius:999px;padding:8px 18px;box-shadow:0 6px 18px rgba(150,30,0,.20)}
.gw-promo .tier img{width:20px;height:20px}
.gw-promo .tier b{color:#d92b06;font-weight:var(--gw-fw-black);font-size:1.1em}   /* 用 em 跟着胶囊字号缩放 */
.gw-promo .go{background:linear-gradient(100deg,#d92b06,#a81704);color:#fff;font-weight:var(--gw-fw-black);font-size:15px;border-radius:999px;padding:10px 24px;cursor:pointer;box-shadow:0 8px 20px rgba(130,20,0,.34);transition:all .25s ease}
.gw-promo .go:hover{background:linear-gradient(100deg,#c02405,#8f1203);color:#fff;box-shadow:0 10px 26px rgba(130,20,0,.44);transform:translateY(-1px)}

/* ==========================================================================
   4. 传统方案痛点 + 用户原声
   ========================================================================== */
.gw-pain-body{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:34px;align-items:center;margin-bottom:54px}
.gw-pain-fig{background:linear-gradient(160deg,#eef4ff,#e6f0ff);border:1px solid #e2ecfb;border-radius:14px;padding:15px;text-align:center}
.gw-pain-fig img{width:100%;}
.gw-pain-fig figcaption{font-size:13px;color:#7a8ba3;margin-top:12px;line-height:1.7}
.gw-pain-list li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed #e4ebf6}
.gw-pain-list li:last-child{border-bottom:0}
.gw-pain-list .idx{flex:0 0 26px;height:26px;border-radius:8px;background:#fff1f0;color:#f5484a;font-size:13px;font-weight:var(--gw-fw-black);display:flex;align-items:center;justify-content:center}
.gw-pain-list h4{font-size:15.5px;font-weight:var(--gw-fw-bold);color:#101828;margin-bottom:5px}
.gw-pain-list p{font-size:13.5px;line-height:1.75;color:#66788f}
.gw-voice-title{text-align:center;font-size:20px;font-weight:var(--gw-fw-black);color:#0b1a33;margin-bottom:8px}
.gw-voice-sub{text-align:center;font-size:13.5px;color:#7a8ba3;margin-bottom:30px}
/* —— 用户原声：动态滚动（两行反向无限循环）——
   每行只写一组卡片，末尾那份由脚本克隆（加 .is-dupe + aria-hidden）拼在轨迹尾部，
   配合 translateX(-50%) 走完「一组」后正好由克隆组接上，实现无缝循环。
   卡片间距用 margin-right 而非 gap：gap 会让轨迹宽度多出一个间隙，
   使 -50% 与「一组卡片」的实际宽度不相等，循环到接缝时会抖一下。 */
.gw-marquee{--gw-mq-card:calc(var(--gw-unit) * 45);--gw-mq-gap:calc(var(--gw-unit) * 2.25);
  position:relative;overflow:hidden;padding:12px 0;
  -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 56px,#000 calc(100% - 56px),transparent 100%);
          mask-image:linear-gradient(90deg,transparent 0,#000 56px,#000 calc(100% - 56px),transparent 100%)}
.gw-marquee + .gw-marquee{padding-top:6px}
/* 脚本未就绪（未克隆/无 JS）时不滚动，退化为可手动横向拖动，不会出现半截空轨 */
.gw-marquee:not(.is-ready){overflow-x:auto;overflow-y:hidden}
.gw-marquee-track{display:flex;width:max-content;will-change:transform}
.gw-marquee-track > .gw-voice{flex:0 0 auto;width:var(--gw-mq-card);margin-right:var(--gw-mq-gap)}
/* 两行时长按各自半程宽度等比设定（A 1890px/44s、B 1512px/35s），速度都约 43px/s，
   断点缩放时卡片一并变窄，两行速度仍保持一致。 */
.gw-marquee--a{--gw-mq-dur:44s}
.gw-marquee--b{--gw-mq-dur:35s}
.gw-voice{background:#fff;border:1px solid #e8eef8;border-radius:12px;padding:22px;position:relative;transition:all .28s ease}
.gw-voice::before{content:"”";position:absolute;right:18px;top:6px;font-size:52px;line-height:1;color:#e4edfb;font-family:Georgia,serif}
.gw-voice:hover{box-shadow:0 12px 30px rgba(12,50,120,.10);border-color:#cddffb;transform:translateY(-2px)}
/* 动画只在脚本克隆完成后挂上（.is-ready），避免加载瞬间出现「只有一组」的短轨 */
.gw-marquee.is-ready .gw-marquee-track{animation:gwMarquee var(--gw-mq-dur,44s) linear infinite}
/* 行 B 反向：reverse 让同一组关键帧从 -50% 走回 0，即向右滚动 */
.gw-marquee--b.is-ready .gw-marquee-track{animation-direction:reverse}
/* 悬停（桌面）/ 长按（触屏，由脚本挂 .is-paused）暂停，方便逐条阅读 */
.gw-marquee:hover .gw-marquee-track,
.gw-marquee.is-paused .gw-marquee-track{animation-play-state:paused}
@keyframes gwMarquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.gw-voice .tag{display:flex;align-items:center;gap:7px;font-size:12.5px;font-weight:var(--gw-fw-bold);color:#0062ff;margin-bottom:12px}
.gw-voice .tag img{width:16px;height:auto}
.gw-voice p{font-size:13.5px;line-height:1.85;color:#485b76;position:relative;z-index:1}
.gw-marquee-hint{text-align:center;font-size:12.5px;color:#93a3b8;margin-top:20px;line-height:1.6}
/* 尊重系统「减弱动态效果」偏好：停掉滚动，改为可手动横向拖动 */
@media(prefers-reduced-motion:reduce){
  .gw-marquee.is-ready .gw-marquee-track{animation:none}
  .gw-marquee.is-ready{overflow-x:auto;overflow-y:hidden}
}

/* ==========================================================================
   5. 技术原理
   ========================================================================== */
.gw-tech{background:#fff;border:1px solid #e8eef8;border-radius:16px;padding:36px 40px 40px;box-shadow:0 10px 40px rgba(12,50,120,.06)}
.gw-tech > h3{font-size:20px;font-weight:var(--gw-fw-black);color:#0b1a33;margin-bottom:6px;display:flex;align-items:center;gap:10px}
.gw-tech > h3::before{content:"";width:4px;height:20px;border-radius:2px;background:linear-gradient(180deg,#0062ff,#00c2ff)}
.gw-tech .principle{font-size:14px;line-height:1.95;color:#5b6b84;margin-bottom:28px}
.gw-tech-body{display:block}
/* 架构图整行铺满（图内文字偏小，尽量给足宽度） */
.gw-arch{margin:0 0 28px;border:1px solid #e8eef8;border-radius:12px;padding:12px;background:#fbfdff}
.gw-arch img{width:100%;display:block;border-radius:6px}
/* 五大识别能力：移到图片下方横向铺开 */
.gw-detect{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;list-style:none;margin:0;padding:0}
.gw-detect li{display:flex;gap:9px;padding:18px 16px;background:#f8fbff;border:1px solid #e8eef8;border-radius:12px;transition:all .28s ease}
.gw-detect li:hover{background:#fff;border-color:#cddffb;box-shadow:0 10px 26px rgba(12,50,120,.08)}
.gw-detect .ck{flex:0 0 17px;width:17px;height:17px;margin-top:2px;background:url(../images/icon-check.png) center/contain no-repeat}
.gw-detect h4{font-size:14.5px;font-weight:var(--gw-fw-bold);color:#101828;margin-bottom:4px;line-height:1.45;min-height:2.9em}
.gw-detect p{font-size:12.5px;line-height:1.68;color:#6b7c95}

/* ==========================================================================
   6. 三步开通
   ========================================================================== */
.gw-steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;position:relative}
.gw-step{background:#fff;border:1px solid #e8eef8;border-radius:14px;padding:26px 24px;position:relative;overflow:hidden}
.gw-step .step-no{font-size:38px;font-weight:900;line-height:1;color:#e6effd;letter-spacing:-2px}
.gw-step .step-name{display:inline-block;font-size:15px;font-weight:var(--gw-fw-black);color:#0062ff;border-bottom:2px solid #0062ff;padding-bottom:4px;margin:-14px 0 18px}
.gw-step ol{counter-reset:s}
.gw-step li{counter-increment:s;font-size:14px;line-height:1.7;color:#465b7a;padding-left:26px;position:relative;margin-bottom:12px}
.gw-step li:last-child{margin-bottom:0}
.gw-step li::before{content:counter(s);position:absolute;left:0;top:1px;width:18px;height:18px;border-radius:50%;background:#eaf2ff;color:#0062ff;font-size:11px;font-weight:var(--gw-fw-black);display:flex;align-items:center;justify-content:center}

/* ==========================================================================
   7. 适配阿里邮箱（三个版本）
   ========================================================================== */
.gw-plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.gw-plan{background:#fff;border:1px solid #e8eef8;border-radius:14px;overflow:hidden;display:flex;flex-direction:column;transition:all .28s ease}
.gw-plan:hover{transform:translateY(-5px);box-shadow:0 18px 40px rgba(12,50,120,.12)}
.gw-plan-head{position:relative;height:132px;padding:24px 24px 0;color:#fff;background-size:cover;background-position:center}
.gw-plan-head h3{font-size:21px;font-weight:var(--gw-fw-black);margin-bottom:8px;text-shadow:0 1px 6px rgba(0,0,0,.12)}
.gw-plan-head p{font-size:13px;opacity:.94;line-height:1.6}
.gw-plan-badge{position:absolute;top:0;right:22px;width:74px;height:auto}
.gw-plan-body{padding:22px 24px 26px;flex:1;display:flex;flex-direction:column}
.gw-plan-body ul{flex:1;margin-bottom:20px}
.gw-plan-body li{font-size:14px;color:#465b7a;line-height:1.9;display:flex;gap:9px;align-items:flex-start}
.gw-plan-body li .ck{flex:0 0 16px;width:16px;height:16px;margin-top:5px;background:url(../images/icon-check.png) center/contain no-repeat}
/* 价格卡片「立即购买」按钮：由蓝色 #0062ff 改橘红 #ff4d4f，与首促横幅同色系，
   避免促销区出现第二套色（蓝色按钮会和白底卡片糊在一起，红色 CTA 更醒目） */
.gw-plan-btn{display:block;text-align:center;height:44px;line-height:42px;border-radius:6px;font-size:15px;font-weight:var(--gw-fw-bold);border:1px solid #ff4d4f;color:#ff4d4f;background:#fff;transition:all .25s ease}
.gw-plan-btn:hover{background:#ff4d4f;color:#fff}
.gw-plan-btn--solid{background:#ff4d4f;color:#fff}
.gw-plan-btn--solid:hover{background:#f5222d;color:#fff}
.gw-platform{position:relative;margin-top:-1px;text-align:center;padding:40px 20px 46px;background:url(../images/more-products.png) center bottom no-repeat;background-size:110% auto;background-color:#2b6bff}
.gw-platform p{font-size:17px;font-weight:var(--gw-fw-semi);color:#fff;line-height:1.8;text-shadow:0 1px 8px rgba(0,0,0,.14)}
.gw-platform .more-link{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:15px;font-weight:var(--gw-fw-bold);color:#fff;border-bottom:1px solid rgba(255,255,255,.7);padding-bottom:3px}
.gw-platform .more-link:hover{color:#dcebff}

/* ==========================================================================
   8. 更多邮箱产品服务
   ========================================================================== */
/* ---------- 选项卡导航 ---------- */
.gw-tabbar{position:relative;display:flex;gap:6px;justify-content:center;max-width:760px;margin:0 auto 30px;padding:7px;background:#fff;border:1px solid #e6eefb;border-radius:999px;box-shadow:0 12px 32px rgba(12,50,120,.07)}
.gw-tab{position:relative;flex:1 1 0;min-width:0;display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 14px;border:0;border-radius:999px;background:transparent;font-family:inherit;font-size:15px;font-weight:var(--gw-fw-semi);line-height:1;color:#4a5b74;white-space:nowrap;cursor:pointer;-webkit-appearance:none;appearance:none;transition:color .25s ease,background-color .25s ease,box-shadow .25s ease}
.gw-tab>i{font-size:14px;color:#8ba0ba;transition:color .25s ease}
.gw-tab:hover{background:#f2f7ff;color:#0062ff}
.gw-tab:hover>i{color:#0062ff}
.gw-tab:focus-visible{outline:2px solid #0062ff;outline-offset:2px}
.gw-tab.is-on{background:linear-gradient(135deg,#0062ff 0%,#2f8bff 100%);color:#fff;box-shadow:0 10px 22px rgba(0,98,255,.26)}
.gw-tab.is-on>i{color:#fff}
/* 自动轮播进度条 */
.gw-tab .gw-bar{position:absolute;left:16px;right:16px;bottom:7px;height:2px;border-radius:2px;background:rgba(255,255,255,.34);overflow:hidden;opacity:0;transition:opacity .3s ease}
.gw-tab.is-on .gw-bar{opacity:1}
.gw-tab .gw-bar>i{display:block;width:0;height:100%;border-radius:2px;background:#fff}
.gw-tab.is-on .gw-bar>i.run{animation:gwBar 6s linear forwards}
@keyframes gwBar{from{width:0}to{width:100%}}
.gw-tabbar.is-hover .gw-tab .gw-bar>i{animation-play-state:paused}
.gw-tabbar.is-static .gw-bar{display:none}
@media(prefers-reduced-motion:reduce){
  .gw-tab .gw-bar{display:none}
  .gw-pane.is-on{animation:none}
}

.gw-panes{position:relative}
.gw-pane{position:relative;display:none;grid-template-columns:minmax(0,1fr) minmax(0,1.18fr);grid-template-areas:var(--gw-areas-d);gap:46px;align-items:center;background:#fff;border:1px solid #edf2fa;border-radius:var(--gw-radius-lg);padding:44px;box-shadow:0 16px 46px rgba(12,50,120,.07)}
.gw-pane.is-on{display:grid;animation:gwPane .52s cubic-bezier(.22,.61,.36,1) both}
@keyframes gwPane{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.gw-pane h3{font-size:26px;font-weight:var(--gw-fw-black);color:#0b1a33;line-height:1.45;letter-spacing:-.2px;margin-bottom:16px}
.gw-pane .desc{font-size:14px;line-height:1.95;color:#5b6b84;margin-bottom:24px}
.gw-pane .sub{font-size:14px;font-weight:var(--gw-fw-bold);color:#101828;margin-bottom:16px}
.gw-pane-list{display:flex;flex-wrap:wrap;gap:12px 22px;list-style:none;margin:0 0 28px;padding:0}
.gw-pane-list li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:#33445c}
.gw-pane-list li::before{content:"";flex:0 0 14px;width:14px;height:14px;background:url(../images/icon-check-sm.png) center/contain no-repeat}
.gw-pane-txt{grid-area:var(--gw-area-txt)}
.gw-pane-fig{grid-area:var(--gw-area-fig)}
.gw-pane-fig img{width:100%;display:block;border-radius:12px}
.gw-swipe-tip{display:none;text-align:center;font-size:12.5px;color:#8ba0ba;margin-top:14px}

/* ==========================================================================
   9. FAQ
   ========================================================================== */
.gw-faq{max-width:920px;margin:0 auto}
.gw-faq-item{background:#fff;border:1px solid #e8eef8;border-radius:12px;margin-bottom:14px;overflow:hidden;transition:all .25s ease}
.gw-faq-item.on{border-color:#bcd7ff;box-shadow:0 10px 28px rgba(12,50,120,.08)}
.gw-faq-q{display:flex;align-items:center;gap:12px;padding:20px 24px;cursor:pointer;font-size:16px;font-weight:var(--gw-fw-bold);color:#101828;user-select:none}
.gw-faq-q .q{flex:0 0 22px;height:22px;border-radius:6px;background:#eaf2ff;color:#0062ff;font-size:13px;font-weight:var(--gw-fw-black);display:flex;align-items:center;justify-content:center}
.gw-faq-q .arw{margin-left:auto;color:#9aa9bd;font-size:13px;transition:transform .25s ease}
.gw-faq-item.on .gw-faq-q .arw{transform:rotate(180deg);color:#0062ff}
.gw-faq-a{display:none;padding:0 24px 22px 58px;font-size:14px;line-height:1.95;color:#5b6b84}
.gw-faq-item.on .gw-faq-a{display:block}

/* ==========================================================================
   10. 底部 CTA
   ========================================================================== */
.gw-cta{position:relative;overflow:hidden;padding:66px 0;background:#0b1a33}
.gw-cta-bg{position:absolute;top:0;left:0;width:100%;height:100%;background:url(../images/scene-3d-light.jpg) center/cover no-repeat;opacity:.16}
.gw-cta-inner{position:relative;z-index:2;text-align:center;color:#fff}
.gw-cta h2{font-size:30px;font-weight:var(--gw-fw-black);line-height:1.4;margin-bottom:14px}
.gw-cta h2 em{font-style:normal;color:#7ec2ff}
.gw-cta p{font-size:15px;line-height:1.9;color:#b9c8dd;max-width:760px;margin:0 auto 30px}
.gw-cta-btns{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-bottom:24px}
.gw-cta-tel{font-size:14px;color:#9db0c8}
.gw-cta-tel b{color:#fff;font-size:17px;font-weight:var(--gw-fw-black);letter-spacing:.5px}

/* ==========================================================================
   响应式
   ========================================================================== */
@media(max-width:1000px){
  .gw-grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gw-marquee{--gw-mq-card:320px}
  .gw-detect{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gw-detect h4{min-height:0}
  .gw-pain-body{grid-template-columns:minmax(0,1fr);gap:26px}
  .gw-pane{grid-template-columns:minmax(0,1fr);grid-template-areas:var(--gw-areas-m);gap:28px;padding:32px}
  .gw-pane h3{font-size:23px}
  .gw-plans{grid-template-columns:repeat(2,minmax(0,1fr))}
  .gw-steps{grid-template-columns:minmax(0,1fr)}
  .gw-hero h1{font-size:34px}
}
@media(max-width:640px){
  .gw-sec{padding:46px 0}
  .gw-head h2{font-size:23px}
  .gw-grid-4,.gw-plans{grid-template-columns:minmax(0,1fr)}
  /* 窄屏卡片改成「近满屏宽」，滚动时一屏基本只见一张，边距渐隐收窄以免吃掉正文 */
  .gw-marquee{--gw-mq-card:min(268px, 78vw);
    -webkit-mask-image:linear-gradient(90deg,transparent 0,#000 26px,#000 calc(100% - 26px),transparent 100%);
            mask-image:linear-gradient(90deg,transparent 0,#000 26px,#000 calc(100% - 26px),transparent 100%)}
  .gw-hero-inner{padding:38px 20px 46px}
  .gw-hero h1{font-size:26px;letter-spacing:-.2px}
  .gw-hero-desc{font-size:14.5px}
  .gw-hero-stats{grid-template-columns:repeat(2,1fr);gap:14px 16px}
  .gw-hero-btns .gw-btn{flex:1;padding:0 18px;font-size:15px}
  .gw-hero-bg{background-position:74% center}
  .gw-hero-bg::after{background:linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.86) 62%,rgba(255,255,255,.6) 100%)}
  .gw-promo-inner{gap:12px 14px}
  /* 窄屏内容横向铺满，横向渐变会让标题右端压到最亮处 → 改成纯纵向渐变（180deg），
     整行亮度一致，标题落在较深的上段（白字 5:1 以上）。 */
  .gw-promo{background:linear-gradient(180deg,#cd2b03 0%,#d63505 38%,#ef4d0d 100%)}
  .gw-promo::before{top:-18%;right:-26%;width:36%;height:120%}
  .gw-promo .lead{font-size:17px;text-align:center}
  .gw-promo .tier{font-size:13.5px;padding:7px 14px}
  .gw-tech{padding:26px 20px 30px}
  .gw-arch{padding:8px;margin-bottom:22px}
  .gw-detect{grid-template-columns:minmax(0,1fr);gap:12px}
  .gw-detect li{padding:15px 14px}
  .gw-tabbar{display:grid;grid-template-columns:1fr 1fr;gap:8px;max-width:100%;padding:8px;border-radius:18px}
  .gw-tab{height:44px;font-size:14px;padding:0 8px}
  .gw-tab .gw-bar{left:12px;right:12px;bottom:6px}
  .gw-pane{padding:24px 18px 26px;border-radius:14px}
  .gw-pane h3{font-size:20px;line-height:1.5}
  .gw-pane .desc{font-size:13.5px;line-height:1.9;margin-bottom:20px}
  .gw-pane .sub{margin-bottom:14px}
  .gw-pane-list{gap:10px 16px;margin-bottom:22px}
  .gw-swipe-tip{display:block}
  .gw-faq-q{padding:16px 18px;font-size:15px}
  .gw-faq-a{padding:0 18px 18px 50px}
  .gw-cta{padding:48px 0}
  .gw-cta h2{font-size:23px}
  .gw-platform{background-size:190% auto;padding:32px 18px 38px}
  .gw-platform p{font-size:15px}
  .gw-plan-head{height:118px}
}