@charset "utf-8";

/* =========================================================
   Papers 繁體中文官網 - 全域性通用樣式 common.css
   主題色：#1BA3D5  淺色主題
   ========================================================= */

:root {
  --pp-primary: #1BA3D5;
  --pp-primary-dark: #1486B0;
  --pp-primary-light: #E8F6FB;
  --pp-primary-soft: #D3EEF7;
  --pp-ink: #0E2A36;
  --pp-text: #33474F;
  --pp-text-soft: #647780;
  --pp-bg: #FFFFFF;
  --pp-bg-alt: #F5FAFC;
  --pp-border: #E2ECF0;
  --pp-shadow: 0 18px 50px -20px rgba(27, 163, 213, 0.35);
  --pp-shadow-sm: 0 8px 24px -12px rgba(14, 42, 54, 0.18);
  --pp-radius: 18px;
  --pp-radius-sm: 12px;
  --pp-max: 1200px;
  --pp-nav-h: 76px;
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei",
    "Helvetica Neue", Helvetica, Arial, "Segoe UI", sans-serif;
  color: var(--pp-text);
  background: var(--pp-bg);
  line-height: 1.75;
  font-size: 16px;
  letter-spacing: 0.01em;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 { color: var(--pp-ink); line-height: 1.3; font-weight: 700; }

.pp-container {
  width: 100%;
  max-width: var(--pp-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* 通用按鈕 */
.pp-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: all .25s ease;
  white-space: nowrap;
}
.pp-btn svg { width: 18px; height: 18px; flex-shrink: 0; }

.pp-btn-primary {
  background: var(--pp-primary);
  color: #fff;
  box-shadow: 0 12px 26px -10px rgba(27, 163, 213, 0.7);
}
.pp-btn-primary:hover {
  background: var(--pp-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 16px 32px -10px rgba(27, 163, 213, 0.85);
}

.pp-btn-ghost {
  background: transparent;
  color: var(--pp-text);
  border-color: var(--pp-border);
}
.pp-btn-ghost:hover {
  border-color: var(--pp-primary);
  color: var(--pp-primary);
}

/* 章節通用 */
.pp-section { padding: 96px 0; }
.pp-section-alt { background: var(--pp-bg-alt); }

.pp-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--pp-primary);
}
.pp-eyebrow::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--pp-primary);
  border-radius: 2px;
}

.pp-section-title {
  font-size: clamp(28px, 4vw, 40px);
  margin: 16px 0;
  max-width: 720px;
}
.pp-section-lead {
  font-size: 17px;
  color: var(--pp-text-soft);
  max-width: 640px;
}

@media (max-width: 768px) {
  .pp-section { padding: 64px 0; }
  body { font-size: 15px; }
}