/* =========================================================
   99MB 导航页 · 主样式
   结构（按出现顺序）：
     1. 重置与基础
     2. .hero          首屏整体（背景 + 内容容器）
     3. .hero__logo    页头 LOGO（移动 / 桌面两版）
     4. .hero__fish    首屏鱼图
     5. .servers       三个入口按钮
     6. .promo         促销横幅 + 两张合作伙伴 LOGO
     7. .welcome       底部欢迎文字
     8. .support       右下角浮动客服按钮 + 菜单
   ========================================================= */

/* ---------- 1. 重置与基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html,
body {
  background-color: #0a3d2c;
  min-height: 100vh;
}

body {
  font-family: "Sarabun", "Roboto", Arial, Helvetica, sans-serif;
  color: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

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

/* ---------- 2. 首屏 hero ---------- */
.hero {
  position: relative;
  width: 100%;
  min-height: 100vh;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding-top: 1rem;
}
@media (min-width: 1024px) {
  .hero {
    align-items: center;
    padding-top: 0;
  }
}

.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center bottom;
  z-index: 0;
  user-select: none;
  pointer-events: none;
}

/* 移动端底部黑→透明渐变 */
.hero__fade {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 4rem;
  background: linear-gradient(to top, #0a3d2c, transparent);
  z-index: 1;
  pointer-events: none;
}
@media (min-width: 640px) {
  .hero__fade {
    display: none;
  }
}

.hero__content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 1600px;
  padding: 2rem 1rem;
  margin-top: -3.6rem;
  text-align: center;
}
@media (min-width: 480px) {
  .hero__content { margin-top: -3.2rem; }
}
@media (min-width: 768px) {
  .hero__content {
    padding: 0 2rem;
    margin-top: -2.5rem;
  }
}
@media (min-width: 1024px) {
  .hero__content {
    flex-direction: row;
    justify-content: center;
    padding: 0 3rem;
    margin-right: 7rem;
    margin-top: -1.5rem;
  }
}
@media (min-width: 1280px) {
  .hero__content { margin-top: -4rem; }
}

/* 右侧主区（鱼图右边的一列：LOGO + 按钮 + 促销） */
.hero__main {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  max-width: 32rem;
  gap: 1rem;
  padding: 0;
}
@media (min-width: 640px) {
  .hero__main { padding: 0 2.5rem; }
}
@media (min-width: 1024px) {
  .hero__main {
    max-width: none;
    gap: 1.5rem;
    padding: 0 0 0 1rem;
  }
}

/* ---------- 3. LOGO ---------- */
.hero__logo--mobile {
  display: block;
  width: auto;
  max-width: 65%;
  margin: -0.3rem auto 1.3rem;
}
@media (min-width: 480px) {
  .hero__logo--mobile { max-width: 68%; margin: -0.8rem auto 1.2rem; }
}
@media (min-width: 640px) {
  .hero__logo--mobile { max-width: 72%; }
}
@media (min-width: 1024px) {
  .hero__logo--mobile { display: none; }
}

.hero__logo--desktop { display: none; }
@media (min-width: 1024px) {
  .hero__logo--desktop {
    display: block;
    max-width: 100%;
    margin: 0 auto 1rem;
    padding: 0 1rem;
  }
}
@media (min-width: 1280px) {
  .hero__logo--desktop { margin-top: -0.5rem; }
}
@media (min-width: 1536px) {
  .hero__logo--desktop { margin-top: -1rem; }
}

/* ---------- 4. 鱼图 ---------- */
.hero__fish {
  width: 100%;
  max-width: 82%;
  object-fit: contain;
  margin: -7.8rem auto 3.8rem;
}
@media (min-width: 480px) {
  .hero__fish { max-width: 84%; margin-top: -8.2rem; }
}
@media (min-width: 640px) {
  .hero__fish { max-width: 88%; margin-top: -8.75rem; margin-bottom: 3.6rem; }
}
@media (min-width: 1024px) {
  .hero__fish {
    max-width: 400px;
    margin: -3rem 0 3.5rem;
  }
}
@media (min-width: 1280px) {
  .hero__fish { max-width: 500px; }
}

/* ---------- 5. 入口按钮 ---------- */
.servers {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  margin-top: -4.5rem;
  gap: 0.7rem;
}
@media (min-width: 480px) {
  .servers { margin-top: -4rem; }
}
@media (min-width: 640px) {
  .servers { margin-top: -3.6rem; }
}
@media (min-width: 1024px) {
  .servers { margin-top: -6.5rem; gap: 1.25rem; }
}
@media (min-width: 1280px) {
  .servers { margin-top: -8.5rem; gap: 1.5rem; }
}

.server-card {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  width: min(95%, 540px);
  min-height: 48px;
  padding: 6px 10px;
  border-radius: 24px;
  border: 1px solid rgba(255, 216, 141, 0.9);
  background:
    radial-gradient(circle at 10% 10%, rgba(255, 255, 255, 0.2), transparent 45%),
    linear-gradient(135deg, rgba(40, 13, 0, 0.95), rgba(12, 2, 0, 0.75));
  box-shadow:
    0 22px 38px rgba(5, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.25),
    0 0 18px rgba(255, 205, 105, 0.25);
  color: #fffbe6;
  text-align: left;
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.server-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow:
    0 22px 45px rgba(5, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

@media (min-width: 480px) {
  .server-card {
    min-height: 78px;
    padding: 12px 16px;
    border-radius: 44px;
    gap: 16px;
  }
}
@media (min-width: 1024px) {
  .server-card {
    width: min(580px, 100%);
    min-height: 80px;
    padding: 14px 18px;
  }
}

.server-card__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 14px;
  background: radial-gradient(circle, #fff3cf 0%, #ffc165 58%, #d67606 100%);
  box-shadow:
    0 12px 22px rgba(255, 175, 60, 0.45),
    inset 0 1px 0 rgba(255, 255, 255, 0.45);
}
.server-card__icon img {
  width: 20px;
  height: 20px;
}
@media (min-width: 480px) {
  .server-card__icon { width: 58px; height: 58px; border-radius: 26px; }
  .server-card__icon img { width: 32px; height: 32px; }
}
@media (min-width: 1024px) {
  .server-card__icon { width: 64px; height: 64px; }
  .server-card__icon img { width: 36px; height: 36px; }
}

.server-card__info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0;
}
@media (min-width: 480px) {
  .server-card__info { gap: 4px; }
}

.server-card__ping {
  font-size: 0.75rem;
  font-weight: 800;
  color: #ffd88f;
}
.server-card__ping--loading {
  display: inline-block;
  width: 0.95em;
  height: 0.95em;
  border: 2px solid rgba(255, 216, 143, 0.25);
  border-top-color: #ffd88f;
  border-radius: 50%;
  animation: ping-spin 0.7s linear infinite;
  vertical-align: -0.15em;
  box-sizing: border-box;
}
@keyframes ping-spin {
  to { transform: rotate(360deg); }
}
.server-card__label {
  font-size: 0.8rem;
  font-weight: 800;
  color: #fff;
}
@media (min-width: 480px) {
  .server-card__ping { font-size: 1rem; }
  .server-card__label { font-size: 1.05rem; }
}
@media (min-width: 1024px) {
  .server-card__ping { font-size: 1.05rem; }
  .server-card__label { font-size: 1.15rem; }
}

.server-card__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 5px 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, #ffe38f 0%, #ff9317 100%);
  color: #5d1e00;
  font-weight: 800;
  font-size: 0.7rem;
  letter-spacing: 0.02em;
  box-shadow: 0 10px 20px rgba(255, 147, 23, 0.4);
  white-space: nowrap;
}
@media (min-width: 480px) {
  .server-card__cta { padding: 10px 22px; font-size: 0.95rem; }
}

/* ---------- 6. 促销横幅 + 合作伙伴 LOGO ---------- */
.promo {
  display: flex;
  flex-direction: column;
  align-items: center;
  width: 100%;
  margin: 18px auto 8px;
  gap: 14px;
}
@media (min-width: 480px) {
  .promo { margin: 20px auto 10px; gap: 16px; }
}
@media (min-width: 640px) {
  .promo { margin: 30px auto; gap: 24px; }
}
@media (min-width: 1024px) {
  .promo { margin-top: 50px; }
}
@media (min-width: 1280px) {
  .promo { margin-top: 60px; }
}

.promo__banner {
  width: 85%;
  max-width: 340px;
  margin: 0 auto 1rem;
}
@media (min-width: 1024px) {
  .promo__banner {
    max-width: 420px;
    transform: translateY(-15px);
    margin-bottom: 1rem;
  }
}
@media (min-width: 1280px) {
  .promo__banner { transform: translateY(-10px); }
}

.promo__grid {
  display: flex;
  flex-wrap: nowrap;
  justify-content: center;
  align-items: center;
  width: 100%;
  max-width: 750px;
  padding: 0 10%;
  gap: 18px;
  transform: translateY(-10px);
}
@media (min-width: 480px) {
  .promo__grid { padding: 0 8%; gap: 20px; transform: translateY(-8px); }
}
@media (min-width: 1024px) {
  .promo__grid { padding: 0 5%; gap: 26px; transform: translateY(-30px); }
}

.promo__item {
  position: relative;
  flex: 0 0 45%;
  aspect-ratio: 468 / 220;
  display: flex;
  align-items: center;
  justify-content: center;
}
@media (min-width: 1024px) {
  .promo__item { flex: 0 0 32%; }
}

.promo__item::after {
  content: "";
  position: absolute;
  inset: -3px;
  border: 2px solid #ffd700;
  border-radius: 10px;
  pointer-events: none;
}
@media (min-width: 640px) {
  .promo__item::after {
    inset: -4px;
    border-width: 2.5px;
  }
}

.promo__item img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 6px;
}

/* ---------- 7. 欢迎语 ---------- */
.welcome {
  width: 100%;
  margin-top: -8px;
  text-align: center;
  font-size: 16px;
  font-weight: bold;
  color: #ffd700;
  text-shadow: 0 0 8px rgba(255, 215, 0, 0.6);
}
@media (min-width: 480px) {
  .welcome { font-size: 18px; }
}
@media (min-width: 640px) {
  .welcome { font-size: 22px; }
}

/* ---------- 8. 右下角客服按钮 + 菜单 ---------- */
.support {
  position: fixed;
  right: 10px;
  bottom: 15px;
  z-index: 9998;
}
@media (min-width: 768px) {
  .support { right: 20px; bottom: 20px; }
}

.support__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.support__btn:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.25);
}
.support__btn img {
  width: 26px;
  height: 26px;
  object-fit: contain;
}
@media (min-width: 768px) {
  .support__btn { width: 50px; height: 50px; }
  .support__btn img { width: 32px; height: 32px; }
}

.support__menu {
  position: absolute;
  right: 60px;
  bottom: 0;
  min-width: 280px;
  padding: 8px;
  background: rgba(0, 0, 0, 0.9);
  border-radius: 12px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  z-index: 9999;
}
@media (min-width: 768px) {
  .support__menu { right: 70px; min-width: 320px; padding: 10px; }
}
.support:hover .support__menu,
.support:focus-within .support__menu {
  opacity: 1;
  visibility: visible;
}

.support__item {
  display: flex;
  align-items: center;
  padding: 12px 14px;
  margin-bottom: 6px;
  border-radius: 8px;
  color: #fff;
  transition: background 0.2s ease;
}
.support__item:last-child { margin-bottom: 0; }
.support__item:hover { background: rgba(255, 255, 255, 0.1); }
@media (min-width: 768px) {
  .support__item { padding: 14px 16px; }
}

.support__item-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  margin-right: 10px;
}
.support__item-icon img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}
@media (min-width: 768px) {
  .support__item-icon { width: 24px; height: 24px; margin-right: 12px; }
}

.support__item-text {
  font-size: 13px;
  line-height: 1.4;
  white-space: nowrap;
}
@media (min-width: 768px) {
  .support__item-text { font-size: 14px; }
}